Silencer, compressor and refrigeration equipment

Abstract

The utility model provides a silencer, a compressor and refrigeration equipment. The silencer comprises a shell, an air inlet pipe and an air outlet pipe, an inlet pipe; the inlet pipe and the outlet pipe are arranged on the shell; the partition plate assembly is arranged in the shell and comprises a partition part, a plurality of cavities are defined by the partition part and the inner surface of the shell and comprise the first cavity and the second cavity, the inlet pipe is communicated with the first cavity, the partition part is provided with a first through hole and a second through hole, and any one of the first through hole and the second through hole is communicated with the first cavity and the second cavity; the air suction pipe is located in the first cavity, one end of the air suction pipe is connected with the first through hole, and the air suction pipe communicates with the first cavity; the flow guide pipe comprises a first end and a second end, the first end is located in the first cavity and connected with the second through hole, and the second end communicates with the outlet pipe. While the silencing effect is optimized, the air suction efficiency of the compressor is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressors, in particular to a silencer, a compressor and a refrigeration equipment. BACKGROUND

[0002] The refrigeration equipment comprises a compressor, and the silencer is a key component of the compressor, which can affect the energy efficiency and noise level of the compressor.

[0003] In the related art, a partition is arranged in the shell of the silencer to divide the internal space of the shell into two chambers to form a two-stage silencer. Because the volume of the two chambers is small, the compression ratio is limited, and the silencing effect of the silencer is poor. CONTENT OF THE UTILITY MODEL

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

[0005] To this end, the first aspect of the present application provides a silencer.

[0006] The second aspect of the present application provides a compressor.

[0007] The third aspect of the present application provides a refrigeration equipment.

[0008] Therefore, the first aspect of the present application provides a silencer, which comprises a shell, an inlet pipe, an outlet pipe, and a partition assembly.

[0009] The silencer provided by the present application comprises a shell, an inlet pipe, an outlet pipe and a partition assembly.

[0010] The inlet pipe and the outlet pipe are arranged on the shell, and the partition assembly is arranged in the shell. That is, the shell serves as a mounting carrier for the inlet pipe, the outlet pipe and the partition assembly, and has the functions of mounting and fixing the inlet pipe, the outlet pipe and the partition assembly, thereby ensuring the cooperation size of the inlet pipe, the outlet pipe and the partition assembly and providing structural support for the flow path of the refrigerant in the silencer.

[0011] The partition assembly is arranged in the shell, and the partition assembly comprises a partition, a suction pipe and a flow guide pipe.

[0012] The partition and the inner surface of the shell enclose a plurality of chambers, the plurality of chambers are divided so that the plurality of chambers include a first chamber and a second chamber, that is, the partition separates the internal space of the shell into at least the first chamber and the second chamber. The inlet pipe communicates with the first chamber.

[0013] The suction pipe and the flow guide pipe are both connected with the partition. The partition is provided with a first through hole and a second through hole, the first through hole communicates the first chamber and the second chamber, and the second through hole communicates the first chamber and the second chamber. The suction pipe is located in the first chamber. The flow guide pipe includes a first end and a second end, the first end is located in the first chamber, and the first end is connected with the second through hole, and the second end communicates with the outlet pipe. That is, the suction pipe and the first end of the flow guide pipe are located on the same side of the partition.

[0014] In this way, when the compressor is working, the refrigerant (such as gaseous refrigerant) enters the first chamber from the inlet pipe, expands and silences in the first chamber, is then sucked into the second chamber through the suction pipe and the first through hole, expands and silences again in the second chamber, and then flows into the flow guide pipe through the second through hole, and then flows to the outlet pipe and is discharged from the muffler through the outlet pipe.

[0015] It can be understood that the flow area of the inlet pipe is smaller than the flow area of the first chamber, the flow area of any one of the suction pipe, the first through hole, the second through hole, the outlet pipe and the flow guide pipe is smaller than the flow area of the first chamber, the flow area of any one of the suction pipe, the first through hole, the second through hole, the outlet pipe and the flow guide pipe is smaller than the flow area of the second chamber, so that the sudden expansion or reduction of the flow area of the inlet pipe, the first chamber, the suction pipe, the second chamber, the flow guide pipe and the outlet pipe causes the reflection of the sound waves propagating along the inlet pipe, the outlet pipe, the first chamber, the second chamber, the suction pipe and the flow guide pipe to generate transmission loss, thereby achieving the purpose of silencing and noise reduction. That is, the inlet pipe, the outlet pipe, the first chamber, the second chamber, the suction pipe and the flow guide pipe cooperate to achieve multi-stage silencing and noise reduction.

[0016] In addition, the refrigerant flowing into the suction pipe has a relatively large velocity, and the continuous flow channel formed by the suction pipe reduces the turning of the refrigerant and reduces the flow loss of the refrigerant, so that more energy is converted into dynamic pressure, thereby facilitating the increase of air volume, avoiding the situation that the flow loss of the refrigerant is large and the aerodynamic performance is poor due to the excessive velocity energy, thereby reducing the air volume, and facilitating the improvement of the suction efficiency and the energy efficiency of the compressor. At the same time, the suction pipe has the function of collecting flow, which can reduce the frequency of the occurrence of phenomena such as flow separation, flow separation, vortex and the like, and is conducive to further reducing noise.

[0017] In addition, the refrigerant flowing into the guide pipe has a relatively large speed, and the continuous flow channel formed by the guide pipe reduces the turning of the refrigerant and reduces the flow loss of the refrigerant, so that more energy is converted into dynamic pressure, thereby facilitating the improvement of the air volume, avoiding the case that the flow loss of the refrigerant is large and the aerodynamic performance is poor due to the excessively large speed energy, thereby reducing the air volume, and facilitating the improvement of the energy efficiency ratio of the compressor. Meanwhile, the guide pipe has the function of flow collection, and the frequency of the occurrence of phenomena such as flow separation, flow separation, vortex, and the like of the refrigerant is reduced, thereby further reducing the noise.

[0018] Therefore, by reasonably setting the structure of the muffler, the suction efficiency of the compressor is improved while the sound reduction effect is optimized.

[0019] According to the above-mentioned muffler of the present application, the following additional technical features can also be provided:

[0020] In some technical solutions, the second end portion is directly connected with the outlet pipe.

[0021] In this technical solution, the specific matching structure of the guide pipe and the outlet pipe is limited.

[0022] The second end portion is directly connected with the outlet pipe, that is, the guide pipe is connected between the second through hole and the outlet pipe. The refrigerant flowing into the guide pipe through the second through hole flows along the pipe wall of the guide pipe to the outlet pipe. The refrigerant flowing into the guide pipe has a relatively large speed, and the continuous flow channel formed by the guide pipe reduces the turning of the refrigerant and reduces the flow loss of the refrigerant, so that more energy is converted into dynamic pressure, thereby facilitating the improvement of the air volume, avoiding the case that the flow loss of the refrigerant is large and the aerodynamic performance is poor due to the excessively large speed energy, thereby reducing the air volume, and facilitating the improvement of the energy efficiency ratio of the compressor. Meanwhile, the guide pipe has the function of flow collection, and the frequency of the occurrence of phenomena such as flow separation, flow separation, vortex, and the like of the refrigerant is reduced, thereby further reducing the noise.

[0023] In some technical solutions, the guide pipe further includes a pipe body connected between the first end portion and the second end portion; the pipe body is located in the first chamber; or a part of the pipe body is located in the first chamber, and another part of the pipe body is located in the second chamber.

[0024] In this technical solution, the structure of the guide pipe is limited.

[0025] The guide pipe includes a pipe body connected with the first end portion, and the pipe body is also connected with the second end portion, that is, the pipe body is connected between the first end portion and the second end portion.

[0026] The pipe body is located in the first chamber.

[0027] Alternatively, a part of the pipe body is located in the first chamber, and another part of the pipe body is located in the second chamber.

[0028] Therefore, at least a part of the pipe body is located in the first chamber.

[0029] When the pipe body of the flow guide pipe is located in the first chamber and the first end of the flow guide pipe is located in the first chamber, that is, most of the structure of the flow guide pipe is located in the first chamber. This arrangement is conducive to reducing the turning angle at the connection between the first end and the pipe body, reducing the turning angle of the refrigerant flowing to the outlet pipe through the flow guide pipe, integrating the refrigerant, reducing the turning of the refrigerant, reducing the flow loss of the refrigerant, and converting more energy into dynamic pressure, thereby improving the air volume and improving the suction efficiency of the product.

[0030] When a part of the pipe body is located in the first chamber and another part of the pipe body is located in the second chamber, the flow guide pipe can be provided with a larger accommodation space, so that the flow guide pipe of a corresponding length can be set according to actual use requirements, the flow path of the refrigerant flowing to the outlet pipe through the second through hole is prolonged, the flow collecting effect of the muffler is improved, the frequency of flow separation, flow separation and vortex occurring when the refrigerant flows is effectively reduced, the flow resistance and pressure loss of the refrigerant are reduced, the operating noise of the compressor is effectively reduced, and the overall performance of the compressor is ensured.

[0031] In some technical solutions, optionally, the partition includes a first partition plate, the first partition plate and the inner surface of the shell enclose the first chamber and the second chamber; the outlet pipe and the inlet pipe are located on the same side of the first partition plate; or the first partition plate is located between the outlet pipe and the inlet pipe.

[0032] In this technical solution, the positional relationship of the outlet pipe, the inlet pipe and the partition is limited.

[0033] The partition includes a first partition plate, and the first partition plate and the inner surface of the shell enclose the first chamber and the second chamber. That is, the first partition plate separates the internal space of the shell into the first chamber and the second chamber.

[0034] The outlet pipe and the inlet pipe are located on the same side of the first partition plate, which is conducive to reducing the complexity of the arrangement of the flow guide pipe and reducing the production cost and installation cost of the muffler.

[0035] The first partition plate is located between the outlet pipe and the inlet pipe, which can provide the flow guide pipe with a larger accommodation space, so that the flow guide pipe of a corresponding length can be set according to actual use requirements, the flow path of the refrigerant flowing to the outlet pipe through the second through hole is prolonged, the flow collecting effect of the muffler is improved, the frequency of flow separation, flow separation and vortex occurring when the refrigerant flows is effectively reduced, the flow resistance and pressure loss of the refrigerant are reduced, the operating noise of the compressor is effectively reduced, and the overall performance of the compressor is ensured.

[0036] In some embodiments, the plurality of chambers further comprises a third chamber, and the second end is in communication with the outlet pipe through the third chamber.

[0037] In some embodiments, the muffler is further defined in structure.

[0038] The plurality of chambers further comprises a third chamber. That is, the plurality of chambers comprises a first chamber, a second chamber and a third chamber.

[0039] The second end is in communication with the outlet pipe through the third chamber. In other words, the second end is indirectly connected with the outlet pipe through the third chamber.

[0040] In this way, when the compressor is working, the refrigerant (e.g., gaseous refrigerant) enters the first chamber from the inlet pipe, expands and damps in the first chamber, is then sucked into the second chamber through the suction pipe and the first through hole, expands and damps again in the second chamber, then flows into the flow guide pipe through the second through hole, expands and damps again in the third chamber through the flow guide pipe, and is finally discharged from the muffler through the outlet pipe.

[0041] It can be understood that the flow cross-sectional area of the inlet pipe is smaller than that of the first chamber, the flow cross-sectional area of any one of the suction pipe, the first through hole, the second through hole, the outlet pipe and the flow guide pipe is smaller than that of the first chamber, the flow cross-sectional area of any one of the suction pipe, the first through hole, the second through hole, the outlet pipe and the flow guide pipe is smaller than that of the second chamber, and the flow cross-sectional area of the flow guide pipe and the outlet pipe is smaller than that of the third chamber. Therefore, the sudden expansion or contraction of the flow cross-sectional area of the inlet pipe, the first chamber, the suction pipe, the second chamber, the flow guide pipe, the third chamber and the outlet pipe causes the reflection of sound waves propagating along the inlet pipe, the outlet pipe, the first chamber, the second chamber, the third chamber, the suction pipe and the flow guide pipe to generate transmission loss, thereby achieving the purpose of silencing and noise reduction. That is, the inlet pipe, the outlet pipe, the first chamber, the second chamber, the third chamber, the suction pipe and the flow guide pipe cooperate to achieve multi-stage silencing and noise reduction.

[0042] In some embodiments, the partition comprises: a second partition plate provided with the first through hole and the second through hole; and a third partition plate connected to one side of the second partition plate, the third partition plate being provided with a third through hole, the second partition plate, the third partition plate and the first inner surface of the first portion of the shell enclosing the first chamber and the second chamber, the third partition plate and the second inner surface of the second portion of the shell enclosing the third chamber, the second end extending into the third chamber through the third through hole, and the second end having a gap with the outlet pipe.

[0043] In some embodiments, the partition comprises a second partition plate and a third partition plate. The second partition plate is provided with the first through hole and the second through hole. The third partition plate is connected to one side of the second partition plate. For example, the second partition plate and the third partition plate are in the shape of a "T".

[0044] The second partition plate, the third partition plate and the inner surface of the first part of the shell enclose the first chamber and the second chamber, and the third partition plate and the inner surface of the second part of the shell enclose the third chamber. That is, the second partition plate, the third partition plate and the inner surface of the shell enclose the first chamber, the second chamber and the third chamber. This arrangement provides structural support for the multi-stage noise reduction of the silencer.

[0045] The third partition plate is provided with a third through hole, and the second end portion extends into the third chamber through the third through hole, and the second end portion has a gap with the outlet pipe. That is, the second end portion is arranged in a spaced-apart manner with the outlet pipe, and the second end portion is not directly connected with the outlet pipe, so as to meet the use requirement that the refrigerant flows into the third chamber through the flow guide pipe, expands and silences again in the third chamber, and is then discharged from the silencer through the outlet pipe.

[0046] At the same time, the second end portion extends into the third chamber through the third through hole, and the third partition plate has the functions of mounting and limiting the flow guide pipe, so as to ensure the cooperation size of the suction pipe and the flow guide pipe.

[0047] In some technical solutions, optionally, at least a part of the flow guide pipe and the suction pipe are located on the same side of the second partition plate.

[0048] In this technical solution, the cooperation structure of the flow guide pipe, the suction pipe and the second partition plate is further limited.

[0049] At least a part of the flow guide pipe and the suction pipe are located on the same side of the second partition plate. That is, a part of the flow guide pipe and the suction pipe are located on the same side of the second partition plate, or the flow guide pipe and the suction pipe are located on the same side of the second partition plate. This arrangement is beneficial to reducing the complexity of the arrangement of the flow guide pipe, and is beneficial to reducing the production cost and installation cost of the silencer.

[0050] In some technical solutions, optionally, the flow guide pipe is provided with a first communication port, and the first communication port communicates with the first chamber.

[0051] In this technical solution, the structure of the flow guide pipe is limited, so that the flow guide pipe is provided with a first communication port, and the first communication port communicates with the first chamber. In this way, the refrigerant in the first chamber can flow into the flow guide pipe through the first communication port, and then flow to the outlet pipe through the flow guide pipe. As can be seen, part of the refrigerant in the first chamber and the refrigerant in the second chamber can flow to the outlet pipe through the flow guide pipe. This arrangement can increase the area of the region where the refrigerant enters the flow guide pipe, which is helpful for the refrigerant to flow into the flow guide pipe more uniformly, is beneficial to reducing local turbulent flow and vortex, is beneficial to reducing the turbulent flow noise generated by high-speed airflow, and is beneficial to further improving the silencing effect of the silencer.

[0052] In some technical solutions, optionally, the other end of the suction pipe is connected with the inlet pipe through the shell, and the suction pipe is provided with a second communication port on the pipe wall, and the second communication port communicates with the first chamber.

[0053] In the technical solution, the structure of the suction pipe is further limited, such that one end of the suction pipe is connected with the first through hole, and the other end of the suction pipe is connected with the inlet pipe through the shell. That is, the suction pipe is connected between the inlet pipe and the first through hole. The second communication opening is arranged on the pipe wall of the suction pipe, and the second communication opening communicates with the first chamber.

[0054] During the operation of the compressor, the refrigerant (e.g., gaseous refrigerant) enters the suction pipe from the inlet pipe, enters the first chamber through the second communication opening of the suction pipe, expands and damps in the first chamber, is then guided into the second chamber through the second communication opening of the suction pipe and the first through hole, expands and damps again in the second chamber, and then flows into the flow guide pipe through the second through hole, and then flows to the outlet pipe and is discharged from the muffler through the outlet pipe.

[0055] That is, the second communication opening has the functions of allowing the refrigerant to flow into the first chamber and allowing the refrigerant to flow into the second chamber.

[0056] It can be understood that the flow cross-sectional area of the second communication opening is smaller than the flow cross-sectional area of the first chamber. Therefore, the sudden expansion or contraction of the flow cross-sectional areas of the second communication opening and the first chamber causes the reflection of sound waves propagating along the second communication opening, the first chamber and the second chamber to generate transmission loss, thereby achieving the purpose of silencing and noise reduction.

[0057] In some technical solutions, optionally, the flow cross-sectional area of at least a portion of the suction pipe gradually decreases in the direction from the inlet pipe to the suction pipe.

[0058] In the technical solution, the structure of the suction pipe is further limited, such that the flow cross-sectional area of at least a portion of the suction pipe gradually decreases in the direction from the inlet pipe to the suction pipe. That is, the flow cross-sectional area of a portion of the suction pipe gradually decreases in the direction from the inlet pipe to the suction pipe. Alternatively, the flow cross-sectional area of the suction pipe gradually decreases in the direction from the inlet pipe to the suction pipe.

[0059] That is, when the refrigerant flows through the portion of the suction pipe with gradually decreasing flow cross-sectional area in the direction from the inlet pipe to the suction pipe, the flow speed of the gas flow can be slowed down, the turbulent noise caused by high-speed gas flow can be reduced, and the silencing effect of the muffler can be further improved. At the same time, the structure arrangement enables the refrigerant to flow more smoothly into the second chamber, so as to reduce the resistance of the gas flow and the pressure drop, and improve the efficiency. In addition, the structure arrangement can reduce the direct impact of the gas flow on the suction pipe, and further reduce the structural vibration and noise.

[0060] In some embodiments, the air suction pipe comprises a first connecting section and a second connecting section, the first connecting section is connected between the inlet pipe and the second connecting section, the second connecting section is connected to the first through hole, the flow cross-sectional area of the first connecting section is larger than that of the second connecting section, and the second connecting section is provided with a second communication opening; along the direction from the inlet pipe to the air suction pipe, the flow cross-sectional area of the first connecting section gradually decreases.

[0061] In this embodiment, the structure of the air suction pipe is further defined.

[0062] The air suction pipe comprises a first connecting section and a second connecting section. The first connecting section is connected between the inlet pipe and the second connecting section, and the second connecting section is connected to the first through hole.

[0063] The cooperation structure of the flow cross-sectional areas of the first connecting section and the second connecting section is defined. The flow cross-sectional area of the first connecting section is larger than that of the second connecting section. Along the direction from the inlet pipe to the air suction pipe, the flow cross-sectional area of the first connecting section gradually decreases. That is, the flow cross-sectional area of a part of the air suction pipe gradually decreases.

[0064] The first connecting section can slow down the flow speed of the gas flow, reduce the turbulent flow noise caused by high-speed gas flow, reduce the resistance of the gas flow, and reduce the pressure drop, which is conducive to further improving the noise reduction effect of the muffler and improving the efficiency. The second connecting section is provided with a second communication opening, and the second connecting section serves as a mounting carrier of the second communication opening, which can meet the use requirements of the change of the flow cross-sectional areas of the second communication opening and the first chamber. This setting is conducive to improving the noise reduction effect of the muffler.

[0065] In some embodiments, the flow cross-sectional area of the end of the air suction pipe facing the inlet pipe is larger than that of the end of the inlet pipe facing the air suction pipe.

[0066] In this embodiment, the cooperation structure of the air suction pipe and the inlet pipe is further defined.

[0067] The flow cross-sectional area of the end of the air suction pipe facing the inlet pipe is larger than that of the end of the inlet pipe facing the air suction pipe. The flow cross-sectional areas of the end faces of the air suction pipe and the inlet pipe arranged opposite to each other are different. When the refrigerant flows from the inlet pipe to the air suction pipe, the flow cross-sectional area suddenly expands, and the sound waves can be reflected multiple times to offset each other, thereby reducing the noise.

[0068] In some embodiments, the end of the air suction pipe facing the inlet pipe is provided with a surrounding edge and a first clamping part; the shell is provided with a second clamping part, the second clamping part is clamped and matched with the first clamping part, and the surrounding edge abuts against the inner surface of the shell.

[0069] In the technical solution, the structure of the air suction pipe is limited so that the air suction pipe has a surrounding edge and a first clamping part at one end of the air suction pipe.

[0070] The second clamping part is arranged in the shell, and the first clamping part and the second clamping part are clamped and matched to stably assemble the air suction pipe on the shell, so as to ensure the matching size of the air suction pipe and the inlet pipe.

[0071] The surrounding edge abuts against the inner surface of the shell, so that when the refrigerant flows into the air suction pipe through the inlet pipe, the amount of refrigerant directly flowing into the first cavity through the connection between the air suction pipe and the shell can be reduced, and structural support is provided to ensure the sound attenuation effect and air suction efficiency of the muffler.

[0072] In some technical solutions, optionally, the other end of the air suction pipe has a gap with the inner surface of the shell.

[0073] In the technical solution, the further cooperation structure of the air suction pipe and the shell is that one end of the air suction pipe is connected with the first through hole, and the other end of the air suction pipe has a gap with the inner surface of the shell. The gap between the other end of the air suction pipe and the inner surface of the shell can meet the use requirement that the air suction pipe is in communication with the first cavity.

[0074] When the compressor is working, the refrigerant enters the first cavity through the inlet pipe, expands and attenuates in the first cavity, then enters the air suction pipe through the other end of the air suction pipe, and is then guided into the second cavity through the first through hole. After expanding and attenuating again in the second cavity, the refrigerant flows into the guide pipe through the second through hole, and then flows to the outlet pipe and is discharged from the muffler through the outlet pipe.

[0075] The flow cross-sectional area of the other end of the air suction pipe is smaller than the flow cross-sectional area of the first cavity, so that the sound wave propagating along the other end of the air suction pipe and the first cavity is reflected to cause transmission loss, thereby achieving the purpose of sound attenuation and noise reduction.

[0076] In some technical solutions, optionally, when the other end of the air suction pipe has a gap with the inner surface of the shell, the air suction pipe is arranged opposite to the inlet pipe.

[0077] In the technical solution, the cooperation structure of the air suction pipe and the inlet pipe is further limited so that the air suction pipe is arranged opposite to the inlet pipe. That is, the air suction pipe is arranged opposite to and spaced apart from the inlet pipe, which forces the sound wave to flow a longer path in the muffler, increases the propagation distance, and causes the sound wave energy to gradually attenuate in the reflection and absorption process, thereby improving the sound attenuation effect of the muffler.

[0078] In some technical solutions, optionally, when the other end of the air suction pipe has a gap with the inner surface of the shell, the flow cross-sectional area of at least a part of the air suction pipe is equal in the direction from the inlet pipe to the air suction pipe.

[0079] In the technical solution, the structure of the suction pipe is defined so that the flow cross-sectional areas of at least a part of the suction pipe are equal in the direction from the inlet pipe to the suction pipe. That is, the flow cross-sectional areas of a part of the suction pipe are equal in the direction from the inlet pipe to the suction pipe. Alternatively, the flow cross-sectional areas of the entire suction pipe are equal in the direction from the inlet pipe to the suction pipe.

[0080] The arrangement keeps the speed of the refrigerant flowing through the suction pipe balanced, reduces flow separation and vortex caused by cross-sectional changes, and thus is conducive to reducing noise. At the same time, the arrangement can reduce the resistance of the refrigerant flowing through the suction pipe, reduce the pressure drop, and improve the suction efficiency.

[0081] In some technical solutions, the baffle assembly further includes a flow guide plate located in the second chamber, the flow guide plate and the partition are connected and enclose a flow guide cavity with an opening, a part of the opening is located close to the second through hole, and the flow guide plate is used for guiding flow to the second through hole.

[0082] In the technical solution, the structure of the baffle assembly is further defined. The baffle assembly further includes a flow guide plate located in the second chamber, the flow guide plate and the partition are connected and enclose a flow guide cavity with an opening, the refrigerant in the second chamber can flow into the flow guide cavity through the opening, the refrigerant can flow to the second through hole under the guidance of the flow guide plate, the flow guide cavity enclosed by the flow guide plate and the partition has the function of guiding the refrigerant to the second through hole, the cavity wall of the flow guide cavity has the function of integrating the refrigerant when the refrigerant flows into the flow guide cavity, which can reduce the turning of the refrigerant and reduce the flow loss of the refrigerant, so that more energy is converted into dynamic pressure, thereby being conducive to improving the air volume, avoiding the situation that the flow loss of the refrigerant is large and the aerodynamic performance is poor due to excessive speed, thereby reducing the air volume, and being conducive to improving the suction efficiency and the energy efficiency of the compressor. At the same time, the flow guide cavity has the functions of collecting flow and directing the refrigerant to the second through hole, which can reduce the frequency of the occurrence of phenomena such as flow separation, flow deviation, and vortex, and is conducive to further reducing noise.

[0083] In some technical solutions, the flow guide cavity and the flow guide pipe extend in the first direction; in the first direction, a part of the opening is located below the second through hole.

[0084] In the technical solution, the flow guide pipe extends along the first direction, and the flow guide cavity extends along the first direction. In the first direction, a part of the opening is located below the second through hole. That is, after the refrigerant is expanded and damped in the second chamber, the refrigerant flows into the second through hole above the opening through the flow guide cavity extending along the first direction, and then flows to the outlet pipe through the flow guide pipe extending along the first direction to be discharged from the muffler. The flow directions of the refrigerant in the flow guide cavity and the flow guide pipe match, so that the airflow turning is reduced, the flow loss of the refrigerant is reduced, more energy is converted into dynamic pressure, and then the air volume is improved, the flow loss of the refrigerant caused by excessive speed energy is avoided, the aerodynamic performance is poor, and then the air volume is reduced, the suction efficiency is improved, and the energy efficiency of the compressor is improved.

[0085] In some technical solutions, in the second direction, the first chamber is located on one side of the second chamber, and the suction pipe is located between the inlet pipe and the flow guide plate; in the first direction, the flow guide pipe is located between the outlet pipe and the suction pipe.

[0086] In the technical solution, the cooperation structure of the first chamber, the second chamber, the suction pipe, the inlet pipe, the flow guide plate and the flow guide pipe is further limited.

[0087] In the second direction, the first chamber is located on one side of the second chamber, and the suction pipe is located between the inlet pipe and the flow guide plate. In the first direction, the flow guide pipe is located between the outlet pipe and the suction pipe.

[0088] The arrangement position of the first chamber and the second chamber matches the arrangement position of the suction pipe, the inlet pipe, the flow guide plate and the flow guide pipe, so as to effectively reduce the airflow turning of the refrigerant flowing through the suction pipe, the flow guide cavity and the flow guide pipe, reduce the flow loss of the refrigerant, convert more energy into dynamic pressure, and then improve the air volume, avoid the flow loss of the refrigerant caused by excessive speed energy, poor aerodynamic performance, and then reduce the air volume, improve the suction efficiency, and improve the energy efficiency of the compressor.

[0089] In some technical solutions, the shell comprises a first sub-shell, the inlet pipe is arranged in the first sub-shell, a second sub-shell, the second sub-shell is arranged on one side of the first sub-shell in the first direction, the outlet pipe is arranged in the second sub-shell, and the partition assembly is connected between the first sub-shell and the second sub-shell.

[0090] In the technical solution, the structure of the shell is limited, and the shell comprises the first sub-shell and the second sub-shell.

[0091] The inlet pipe is arranged in the first sub-shell, and the outlet pipe is arranged in the second sub-shell. In the first direction, the second sub-shell is arranged on one side of the first sub-shell, and the partition assembly is connected between the first sub-shell and the second sub-shell. That is, the inner surface of the first sub-shell, the inner surface of the second sub-shell and the partition part enclose the first chamber and the second chamber.

[0092] The arrangement can reduce the assembly difficulty of the shell and the partition assembly, has high assembly efficiency, and is convenient for subsequent maintenance.

[0093] A compressor is provided in a second aspect of the present application, comprising the muffler in the first aspect.

[0094] The compressor provided in the present application comprises the muffler in the first aspect, and thus has all the beneficial effects of the muffler, which are not repeated here.

[0095] A refrigeration device is provided in a third aspect of the present application, comprising the compressor in the second aspect.

[0096] The refrigeration device provided in the present application comprises the compressor in the second aspect, and thus has all the beneficial effects of the compressor, which are not repeated here.

[0097] Exemplarily, the refrigeration device comprises a refrigerator, a freezer, an air conditioner, and the like, which are not listed one by one here.

[0098] Exemplarily, the second end of the flow guide pipe extends into the end of the outlet pipe and is connected with the outlet pipe.

[0099] Exemplarily, the second end of the flow guide pipe is sleeved outside the end of the outlet pipe and is connected with the outlet pipe.

[0100] Additional aspects and advantages of the present application will become apparent from the following description with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0101] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

[0102] Figure 1 A structure schematic diagram of the muffler of the first embodiment of the present application is shown;

[0103] Figure 2 An exploded view of the muffler of the first embodiment of the present application is shown;

[0104] Figure 3 A partial structure schematic diagram of the muffler of the first embodiment of the present application is shown;

[0105] Figure 4 A partial structure schematic diagram of the muffler of the second embodiment of the present application is shown;

[0106] Figure 5 Fig. 3 shows a partial structural schematic diagram of a muffler according to a third embodiment of the present application;

[0107] Figure 6 Fig. 4 shows a structural schematic diagram of a muffler according to a fourth embodiment of the present application;

[0108] Figure 7 Fig. 5 shows an exploded view of a muffler according to the fourth embodiment of the present application;

[0109] Figure 8 Fig. 6 shows a partial structural schematic diagram of a muffler according to the fourth embodiment of the present application;

[0110] Figure 9 Fig. 7 shows a partial structural schematic diagram of a muffler according to a fifth embodiment of the present application.

[0111] Correspondence between reference signs in the drawings and names of components is as follows: Figures 1 to 9 Correspondence between reference signs in the drawings and names of components is as follows:

[0112] 10 muffler, 100 housing, 110 second clamping portion, 120 first sub-housing, 130 second sub-housing, 200 inlet pipe, 300 outlet pipe, 400 partition assembly, 410 partition, 412 first through hole, 413 first partition, 414 second through hole, 415 third partition, 416 third through hole, 417 second partition, 420 first chamber, 430 second chamber, 440 air suction pipe, 441 second communication opening, 442 first connecting section, 443 second connecting section, 444 surrounding edge, 445 first clamping portion, 450 flow guide pipe, 452 first end portion, 454 second end portion, 456 first communication opening, 457 pipe body, 460 flow guide plate, 472 flow guide cavity, 474 opening, 480 third chamber. DETAILED DESCRIPTION

[0113] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application will be further described in detail below with reference to the 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.

[0114] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0115] Reference will now be made to the drawings and embodiments of the present application described below. Figures 1 to 9 The muffler 10, compressor and refrigeration device according to some embodiments of the present application are described.

[0116] As Figure 1 ,Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown in FIGS. 1-4, an acoustic silencer 10 according to some embodiments of the present application includes a housing 100, an inlet pipe 200, an outlet pipe 300, and a baffle assembly 400.

[0117] The inlet pipe 200 and the outlet pipe 300 are disposed on the housing 100.

[0118] The baffle assembly 400 is disposed within the housing 100.

[0119] The baffle assembly 400 includes a partition 410, an air intake pipe 440, and a flow guide pipe 450.

[0120] The partition 410 and an inner surface of the housing 100 enclose a plurality of chambers, including a first chamber 420 and a second chamber 430.

[0121] The inlet pipe 200 is in communication with the first chamber 420.

[0122] The partition 410 is provided with a first through hole 412 and a second through hole 414.

[0123] Either of the first through hole 412 and the second through hole 414 is in communication with the first chamber 420 and the second chamber 430.

[0124] The air intake pipe 440 is located within the first chamber 420.

[0125] One end of the air intake pipe 440 is connected to the first through hole 412, and the air intake pipe 440 is in communication with the first chamber 420.

[0126] The flow guide pipe 450 includes a first end portion 452 and a second end portion 454.

[0127] The first end portion 452 is located in the first chamber 420, and the first end portion 452 is connected to the second through hole 414.

[0128] The second end portion 454 is in communication with the outlet pipe 300.

[0129] An acoustic silencer 10 according to some embodiments of the present application includes a housing 100, an inlet pipe 200, an outlet pipe 300, and a baffle assembly 400.

[0130] The inlet pipe 200 and the outlet pipe 300 are arranged on the shell 100, and the partition assembly 400 is arranged in the shell 100. That is, the shell 100 serves as a mounting carrier of the inlet pipe 200, the outlet pipe 300 and the partition assembly 400, and has the functions of mounting and fixing the inlet pipe 200, the outlet pipe 300 and the partition assembly 400, and can ensure the cooperation size of the inlet pipe 200, the outlet pipe 300 and the partition assembly 400, thereby providing structural support for ensuring the flow path of the refrigerant in the muffler 10.

[0131] The partition assembly 400 is arranged in the shell 100, and the partition assembly 400 includes a partition portion 410, a suction pipe 440 and a flow guide pipe 450.

[0132] The partition portion 410 and the inner surface of the shell 100 enclose a plurality of chambers, and the plurality of chambers are divided so as to include a first chamber 420 and a second chamber 430, that is, the partition portion 410 divides the internal space of the shell 100 into at least the first chamber 420 and the second chamber 430. The inlet pipe 200 communicates with the first chamber 420.

[0133] The suction pipe 440 and the flow guide pipe 450 are both connected with the partition portion 410. The partition portion 410 is provided with a first through hole 412 and a second through hole 414, the first through hole 412 communicates the first chamber 420 and the second chamber 430, and the second through hole 414 communicates the first chamber 420 and the second chamber 430. The suction pipe 440 is located in the first chamber 420. The flow guide pipe 450 includes a first end portion 452 and a second end portion 454, the first end portion 452 is located in the first chamber 420, and the first end portion 452 is connected with the second through hole 414, and the second end portion 454 communicates with the outlet pipe 300. That is, the suction pipe 440 and the first end portion 452 of the flow guide pipe 450 are located on the same side of the partition portion 410.

[0134] In this way, when the compressor is working, the refrigerant (for example, gaseous refrigerant) enters the first chamber 420 from the inlet pipe 200, expands and damps in the first chamber 420, is guided into the second chamber 430 by the suction pipe 440 and the first through hole 412, expands and damps again in the second chamber 430, and then flows into the flow guide pipe 450 through the second through hole 414, and then flows to the outlet pipe 300 and is discharged from the muffler 10 through the outlet pipe 300.

[0135] It can be understood that the flow area of the inlet pipe 200 is smaller than the flow area of the first chamber 420, the flow area of any one of the suction pipe 440, the first through hole 412, the second through hole 414, the outlet pipe 300 and the flow guide pipe 450 is smaller than the flow area of the first chamber 420, the flow area of any one of the suction pipe 440, the first through hole 412, the second through hole 414, the outlet pipe 300 and the flow guide pipe 450 is smaller than the flow area of the second chamber 430, and therefore, the sudden expansion or contraction of the flow area of the inlet pipe 200, the first chamber 420, the suction pipe 440, the second chamber 430, the flow guide pipe 450 and the outlet pipe 300 causes the sound waves propagating along the inlet pipe 200, the outlet pipe 300, the first chamber 420, the second chamber 430, the suction pipe 440 and the flow guide pipe 450 to reflect to generate transmission loss, thereby achieving the purpose of silencing and noise reduction. That is, the inlet pipe 200, the outlet pipe 300, the first chamber 420, the second chamber 430, the suction pipe 440 and the flow guide pipe 450 cooperate to achieve multi-stage silencing and noise reduction.

[0136] In addition, the refrigerant flowing into the suction pipe 440 has a large velocity energy, and the continuous flow channel formed by the suction pipe 440 reduces the turning of the refrigerant and reduces the flow loss of the refrigerant, so that more energy is converted into dynamic pressure, thereby helping to increase the air volume, avoiding the case that the flow loss of the refrigerant is large and the aerodynamic performance is poor due to too large velocity energy, thereby reducing the air volume, and helping to improve the suction efficiency and the energy efficiency of the compressor.

[0137] In addition, the refrigerant flowing into the flow guide pipe 450 has a large velocity energy, and the continuous flow channel formed by the flow guide pipe 450 reduces the turning of the refrigerant and reduces the flow loss of the refrigerant, so that more energy is converted into dynamic pressure, thereby helping to increase the air volume, avoiding the case that the flow loss of the refrigerant is large and the aerodynamic performance is poor due to too large velocity energy, thereby reducing the air volume, and helping to improve the suction efficiency and the energy efficiency of the compressor.

[0138] Therefore, by reasonably setting the structure of the silencer 10, the suction efficiency of the compressor is improved while the silencing effect is optimized, and the energy efficiency of the compressor is improved.

[0139] The cross-sectional area of flow is defined as follows. For example, the cross-sectional area of flow of the suction pipe 440 is the area of the region enclosed by the inner contour of the suction pipe 440 in a cross section of the suction pipe 440 taken perpendicular to the length direction of the suction pipe 440. The cross-sectional area of flow of the flow guide pipe 450 is the area of the region enclosed by the inner contour of the flow guide pipe 450 in a cross section of the flow guide pipe 450 taken perpendicular to the length direction of the flow guide pipe 450. The cross-sectional area of flow of other structures is defined in the same way, which is not listed here.

[0140] The muffler 10 of the present embodiment further comprises the following technical features in addition to the technical features of the above embodiments. The second end portion 454 is directly connected to the outlet pipe 300.

[0141] In the present embodiment, the specific matching structure of the flow guide pipe 450 and the outlet pipe 300 is defined.

[0142] The second end portion 454 is directly connected to the outlet pipe 300, that is, the flow guide pipe 450 is connected between the second through hole 414 and the outlet pipe 300. The refrigerant flowing into the flow guide pipe 450 through the second through hole 414 flows along the wall of the flow guide pipe 450 to the outlet pipe 300. The refrigerant flowing into the flow guide pipe 450 has a relatively large velocity, and the continuous flow channel formed by the flow guide pipe 450 reduces the turning of the refrigerant and the flow loss of the refrigerant, so that more energy is converted into dynamic pressure, which is conducive to improving the air volume and avoiding the situation that the air volume is reduced due to the large velocity energy and poor aerodynamic performance. At the same time, the flow guide pipe 450 has the function of collecting flow, which can reduce the frequency of the occurrence of phenomena such as flow separation, flow separation, vortex, etc., which is conducive to further reducing noise.

[0143] The muffler 10 of the present embodiment further comprises the following technical features in addition to the technical features of the above embodiments. As shown in Figure 3 、 Figure 4 and Figure 5 , the flow guide pipe 450 further comprises a pipe body 457.

[0144] The pipe body 457 is connected between the first end portion 452 and the second end portion 454.

[0145] The pipe body 457 is located in the first chamber 420.

[0146] Alternatively, part of the pipe body 457 is located in the first chamber 420, and the other part of the pipe body 457 is located in the second chamber 430.

[0147] In the present embodiment, the structure of the flow guide pipe 450 is defined.

[0148] The flow guide pipe 450 comprises a pipe body 457 connected with the first end 452, and the pipe body 457 is also connected with the second end 454, that is, the pipe body 457 is connected between the first end 452 and the second end 454.

[0149] The pipe body 457 is located in the first chamber 420.

[0150] Alternatively, a part of the pipe body 457 is located in the first chamber 420, and another part of the pipe body 457 is located in the second chamber 430.

[0151] Therefore, at least a part of the pipe body 457 is located in the first chamber 420.

[0152] When the pipe body 457 of the flow guide pipe 450 is located in the first chamber 420, and the first end 452 of the flow guide pipe 450 is located in the first chamber 420, that is, most of the structure of the flow guide pipe 450 is located in the first chamber 420. This arrangement is conducive to reducing the turning angle at the connection between the first end 452 and the pipe body 457, reducing the turning angle of the refrigerant flowing to the outlet pipe 300 through the flow guide pipe 450, integrating the refrigerant, reducing the turning of the refrigerant, reducing the flow loss of the refrigerant, and converting more energy into dynamic pressure, thereby improving the air volume and improving the suction efficiency of the product.

[0153] When a part of the pipe body 457 is located in the first chamber 420, and another part of the pipe body 457 is located in the second chamber 430, the flow guide pipe 450 can be provided with a larger accommodation space. In this way, the flow guide pipe 450 with a corresponding length can be set according to actual use requirements, the flow path of the refrigerant flowing to the outlet pipe 300 through the second through hole 414 is prolonged, the flow collecting effect of the muffler 10 is improved, the frequency of flow separation, flow separation and vortex occurring when the refrigerant flows is effectively reduced, the flow resistance and pressure loss of the refrigerant are reduced, the operating noise of the compressor is effectively reduced, and the overall performance of the compressor is ensured.

[0154] The embodiment provides a muffler 10, in addition to the technical features of the above-mentioned embodiment, the embodiment further comprises the following technical features, as shown in Figure 1 、 Figure 3 、 Figure 4 and Figure 5 The partition 410 comprises a first partition plate 413, and the first partition plate 413 and the inner surface of the shell 100 enclose the first chamber 420 and the second chamber 430.

[0155] The outlet pipe 300 and the inlet pipe 200 are located on the same side of the first partition plate 413.

[0156] In this embodiment, the positional relationship of the outlet pipe 300, the inlet pipe 200 and the partition 410 is defined.

[0157] The partition 410 includes a first partition plate 413, and the first partition plate 413 and the inner surface of the shell 100 enclose a first chamber 420 and a second chamber 430. That is, the first partition plate 413 divides the internal space of the shell 100 into the first chamber 420 and the second chamber 430.

[0158] The outlet pipe 300 and the inlet pipe 200 are located on the same side of the first partition plate 413, which facilitates reducing the arrangement complexity of the flow guide pipe 450 and reducing the production cost and installation cost of the muffler 10.

[0159] In addition to the technical features of the above-mentioned embodiments, the present embodiment further includes the following technical features: the first partition plate 413 is located between the outlet pipe 300 and the inlet pipe 200.

[0160] In this embodiment, the positional relationship of the outlet pipe 300, the inlet pipe 200 and the first partition plate 413 is defined.

[0161] The partition 410 includes a first partition plate 413, and the first partition plate 413 and the inner surface of the shell 100 enclose a first chamber 420 and a second chamber 430. That is, the first partition plate 413 divides the internal space of the shell 100 into the first chamber 420 and the second chamber 430.

[0162] The first partition plate 413 is located between the outlet pipe 300 and the inlet pipe 200, which can provide a larger accommodation space for the flow guide pipe 450. Thus, the flow guide pipe 450 with a corresponding length can be set according to actual use requirements, the flow path of the refrigerant flowing to the outlet pipe 300 through the second through hole 414 is prolonged, the flow collecting effect of the muffler 10 is improved, the frequency of flow separation, flow separation and vortex and the like occurring when the refrigerant flows is effectively reduced, the flow resistance and pressure loss of the refrigerant are reduced, the operating noise of the compressor is effectively reduced, and the overall performance of the compressor is ensured.

[0163] In addition to the technical features of the above-mentioned embodiments, the present embodiment further includes the following technical features: as shown in Figure 8 and Figure 9 As shown in Figs. 5 and 6, the plurality of chambers further includes a third chamber 480, and the second end portion 454 communicates with the outlet pipe 300 through the third chamber 480.

[0164] In this embodiment, the structure of the muffler 10 is further defined.

[0165] The plurality of chambers further comprises a third chamber 480. That is, the plurality of chambers comprises the first chamber 420, the second chamber 430 and the third chamber 480.

[0166] The second end portion 454 is in communication with the outlet pipe 300 through the third chamber 480. In other words, the second end portion 454 is indirectly connected with the outlet pipe 300 through the third chamber 480.

[0167] In this way, when the compressor is working, the refrigerant (e.g. gaseous refrigerant) enters the first chamber 420 from the inlet pipe 200, expands and damps in the first chamber 420, is then guided into the second chamber 430 through the suction pipe 440 and the first through hole 412, expands and damps again in the second chamber 430, then flows into the flow guide pipe 450 through the second through hole 414, flows into the third chamber 480 through the flow guide pipe 450, expands and damps again in the third chamber 480, and is finally discharged from the muffler 10 through the outlet pipe 300.

[0168] It can be understood that the flow area of the inlet pipe 200 is smaller than the flow area of the first chamber 420, the flow area of any one of the suction pipe 440, the first through hole 412, the second through hole 414, the outlet pipe 300 and the flow guide pipe 450 is smaller than the flow area of the first chamber 420, the flow area of any one of the suction pipe 440, the first through hole 412, the second through hole 414, the outlet pipe 300 and the flow guide pipe 450 is smaller than the flow area of the second chamber 430, and the flow area of the flow guide pipe 450 and the outlet pipe 300 is smaller than the flow area of the third chamber 480. Therefore, the sudden expansion or contraction of the flow areas of the inlet pipe 200, the first chamber 420, the suction pipe 440, the second chamber 430, the flow guide pipe 450, the third chamber 480 and the outlet pipe 300 causes the sound waves propagating along the inlet pipe 200, the outlet pipe 300, the first chamber 420, the second chamber 430, the third chamber 480, the suction pipe 440 and the flow guide pipe 450 to reflect to generate transmission loss, thereby achieving the purpose of silencing and noise reduction. That is, the inlet pipe 200, the outlet pipe 300, the first chamber 420, the second chamber 430, the third chamber 480, the suction pipe 440 and the flow guide pipe 450 cooperate to achieve multi-stage silencing and noise reduction.

[0169] The present embodiment provides a muffler 10, in addition to the technical features of the above-mentioned embodiments, further comprising the following technical features, such as Figure 7 、 Figure 8 and Figure 9As shown, the partition 410 comprises: a second partition plate 417, the second partition plate 417 being provided with the first through hole 412 and the second through hole 414; and a third partition plate 415, the third partition plate 415 being connected to one side of the second partition plate 417, the third partition plate 415 being provided with a third through hole 416, the second partition plate 417, the third partition plate 415 and the first portion inner surface of the shell 100 enclosing the first chamber 420 and the second chamber 430, the third partition plate 415 and the second portion inner surface of the shell 100 enclosing the third chamber 480, the second end portion 454 extending into the third chamber 480 through the third through hole 416, and the second end portion 454 having a gap with the outlet pipe 300.

[0170] In this embodiment, the partition 410 comprises the second partition plate 417 and the third partition plate 415. The second partition plate 417 is provided with the first through hole 412 and the second through hole 414. The third partition plate 415 is connected to one side of the second partition plate 417. For example, the second partition plate 417 and the third partition plate 415 are in the shape of a “T”.

[0171] The second partition plate 417, the third partition plate 415 and the first portion inner surface of the shell 100 enclose the first chamber 420 and the second chamber 430, and the third partition plate 415 and the second portion inner surface of the shell 100 enclose the third chamber 480. That is, the second partition plate 417, the third partition plate 415 and the inner surface of the shell 100 enclose the first chamber 420, the second chamber 430 and the third chamber 480. This arrangement provides structural support for the multi-stage noise reduction of the silencer 10.

[0172] The third partition plate 415 is provided with the third through hole 416, the second end portion 454 extends into the third chamber 480 through the third through hole 416, and the second end portion 454 has a gap with the outlet pipe 300. That is, the second end portion 454 is arranged in a spaced-apart manner with the outlet pipe 300, and the second end portion 454 is not directly connected to the outlet pipe 300, so as to meet the use requirement that the refrigerant flows into the third chamber 480 through the flow guide pipe 450, is expanded and damped again in the third chamber 480, and is then discharged out of the silencer 10 through the outlet pipe 300.

[0173] At the same time, the second end portion 454 extends into the third chamber 480 through the third through hole 416, and the third partition plate 415 has the function of mounting and limiting the flow guide pipe 450, so as to ensure the cooperation size of the suction pipe 440 and the flow guide pipe 450.

[0174] The present embodiment provides a silencer 10, in addition to the technical features of the above-mentioned embodiments, further comprising the following technical feature: at least a portion of the flow guide pipe 450 and the suction pipe 440 are located on the same side of the second partition plate 417.

[0175] In this embodiment, the cooperative structure of the guide tube 450, the intake tube 440, and the second partition 417 is further defined.

[0176] At least a portion of the guide pipe 450 and the intake pipe 440 are located on the same side of the second partition 417. That is, a portion of the guide pipe 450 and the intake pipe 440 are located on the same side of the second partition 417, or the guide pipe 450 and the intake pipe 440 are located on the same side of the second partition 417. This arrangement helps to reduce the complexity of the arrangement of the guide pipe 450 and helps to reduce the production and installation costs of the muffler 10. This embodiment provides a muffler 10, which, in addition to the technical features of the above embodiments, further includes the following technical features, such as... Figure 4 As shown, the guide tube 450 is provided with a first connecting port 456, which connects to the first chamber 420.

[0177] In this embodiment, the structure of the guide pipe 450 is defined such that the guide pipe 450 has a first connecting port 456, which communicates with the first chamber 420. Thus, the refrigerant in the first chamber 420 can flow into the guide pipe 450 through the first connecting port 456 and then flow to the outlet pipe 300. Therefore, a portion of the refrigerant in the first chamber 420 and the refrigerant in the second chamber 430 can flow to the outlet pipe 300 through the guide pipe 450. This arrangement increases the area of ​​the refrigerant entering the guide pipe 450, which helps the refrigerant flow more evenly into the guide pipe 450, reduces local turbulence and eddies, lowers turbulent noise generated by high-speed airflow, and further improves the noise reduction effect of the silencer 10.

[0178] This embodiment provides a muffler 10. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features, such as... Figure 3 and Figure 4 As shown, the other end of the suction pipe 440 is connected to the inlet pipe 200 through the housing 100.

[0179] The suction pipe 440 has a second connecting port 441 on its wall, which connects to the first chamber 420.

[0180] In this embodiment, the structure of the suction pipe 440 is further defined such that one end of the suction pipe 440 is connected to the first through hole 412, and the other end of the suction pipe 440 is connected to the inlet pipe 200 through the housing 100. That is, the suction pipe 440 connects the inlet pipe 200 and the first through hole 412. The pipe wall of the suction pipe 440 is provided with a second connecting port 441, which connects to the first chamber 420.

[0181] When the compressor is working, the refrigerant (e.g. gaseous refrigerant) enters the suction pipe 440 from the inlet pipe 200, enters the first chamber 420 through the second communication port 441 of the suction pipe 440, expands and damps in the first chamber 420, is then guided into the second chamber 430 through the second communication port 441 of the suction pipe 440 and the first through hole 412, expands and damps again in the second chamber 430, and then flows into the guide pipe 450 through the second through hole 414, and then flows to the outlet pipe 300 and is discharged from the muffler 10 through the outlet pipe 300.

[0182] That is, the second communication port 441 has the function of allowing the refrigerant to flow into the first chamber 420 and the function of allowing the refrigerant to flow into the second chamber 430.

[0183] It can be understood that the flow cross-sectional area of the second communication port 441 is smaller than the flow cross-sectional area of the first chamber 420, so that the sudden expansion or contraction of the flow cross-sectional area of the second communication port 441 and the first chamber 420 causes the reflection of sound waves propagating along the second communication port 441, the first chamber 420 and the second chamber 430 to generate transmission loss, thereby achieving the purpose of silencing and noise reduction.

[0184] The embodiment provides a muffler 10, in addition to the technical features of the above-mentioned embodiments, further comprising the following technical features: the flow cross-sectional area of at least a portion of the suction pipe 440 gradually decreases in the direction from the inlet pipe 200 to the suction pipe 440.

[0185] In this embodiment, the structure of the suction pipe 440 is further limited, so that the flow cross-sectional area of at least a portion of the suction pipe 440 gradually decreases in the direction from the inlet pipe 200 to the suction pipe 440. That is, the flow cross-sectional area of a portion of the suction pipe 440 gradually decreases in the direction from the inlet pipe 200 to the suction pipe 440. Alternatively, the flow cross-sectional area of the suction pipe 440 gradually decreases in the direction from the inlet pipe 200 to the suction pipe 440.

[0186] That is, when the refrigerant flows through the portion of the suction pipe 440 where the flow cross-sectional area gradually decreases in the direction from the inlet pipe 200 to the suction pipe 440, the flow velocity of the gas flow can be slowed down, the turbulent noise caused by high-speed gas flow can be reduced, and the silencing effect of the muffler 10 can be further improved. At the same time, the structure allows the refrigerant to flow more smoothly into the second chamber 430, reduces the resistance of the gas flow, reduces the pressure drop, and improves the efficiency. In addition, the structure can reduce the direct impact of the gas flow on the suction pipe 440, and further reduce the structural vibration and noise.

[0187] The embodiment provides a muffler 10, in addition to the technical features of the above-mentioned embodiments, further comprising the following technical features: the flow cross-sectional area of at least a portion of the suction pipe 440 gradually decreases in the direction from the inlet pipe 200 to the suction pipe 440. Figure 3and Figure 4 As shown, the air suction pipe 440 comprises a first connecting section 442 and a second connecting section 443.

[0188] The first connecting section 442 is connected between the inlet pipe 200 and the second connecting section 443.

[0189] The second connecting section 443 is connected to the first through hole 412.

[0190] The flow cross-sectional area of the first connecting section 442 is greater than that of the second connecting section 443.

[0191] The second connecting section 443 is provided with a second communication port 441.

[0192] In the direction from the inlet pipe 200 to the air suction pipe 440, the flow cross-sectional area of the first connecting section 442 gradually decreases.

[0193] In this embodiment, the structure of the air suction pipe 440 is further defined.

[0194] The air suction pipe 440 comprises a first connecting section 442 and a second connecting section 443. The first connecting section 442 is connected between the inlet pipe 200 and the second connecting section 443, and the second connecting section 443 is connected to the first through hole 412.

[0195] The cooperation structure of the flow cross-sectional areas of the first connecting section 442 and the second connecting section 443 is defined. The flow cross-sectional area of the first connecting section 442 is greater than that of the second connecting section 443. In the direction from the inlet pipe 200 to the air suction pipe 440, the flow cross-sectional area of the first connecting section 442 gradually decreases. That is, the flow cross-sectional area of a part of the air suction pipe 440 gradually decreases.

[0196] The first connecting section 442 can slow down the flow rate of the airflow, reduce the turbulent flow noise caused by high-speed airflow, reduce the resistance of the airflow, and reduce the pressure drop, which is conducive to further improving the sound attenuation effect of the muffler 10 and improving the efficiency. The second connecting section 443 is provided with a second communication port 441, and the second connecting section 443 serves as a mounting carrier of the second communication port 441, which can meet the use requirements of the change in the flow cross-sectional area of the second communication port 441 and the first chamber 420. This setting is conducive to improving the sound attenuation effect of the muffler 10.

[0197] Exemplarily, in the direction from the inlet pipe 200 to the air suction pipe 440, the flow cross-sectional area of the second connecting section 443 is uniform.

[0198] Exemplarily, in the direction from the inlet pipe 200 to the air suction pipe 440, the flow cross-sectional area of the second connecting section 443 gradually decreases.

[0199] The muffler 10 of the present embodiment further comprises the following technical features in addition to the technical features of the above embodiments: the cross-sectional area of the suction pipe 440 at the end thereof facing the inlet pipe 200 is greater than the cross-sectional area of the inlet pipe 200 at the end thereof facing the suction pipe 440.

[0200] In the present embodiment, the structure of the suction pipe 440 and the inlet pipe 200 is further defined.

[0201] The cross-sectional area of the suction pipe 440 at the end thereof facing the inlet pipe 200 is greater than the cross-sectional area of the inlet pipe 200 at the end thereof facing the suction pipe 440. The cross-sectional areas of the end surfaces of the suction pipe 440 and the inlet pipe 200 facing each other are different, so that when the refrigerant flows from the inlet pipe 200 to the suction pipe 440, the cross-sectional area suddenly expands, and the sound waves can be reflected multiple times to cancel out part of the sound waves, thereby reducing the noise.

[0202] The muffler 10 of the present embodiment further comprises the following technical features in addition to the technical features of the above embodiments: as shown in Figure 2 、 Figure 3 and Figure 4 the end of the suction pipe 440 facing the inlet pipe 200 has a surrounding edge 444 and a first clamping portion 445.

[0203] The second clamping portion 110 is arranged in the housing 100.

[0204] The second clamping portion 110 is clamped and matched with the first clamping portion 445.

[0205] The surrounding edge 444 abuts against the inner surface of the housing 100.

[0206] In the present embodiment, the structure of the suction pipe 440 is defined such that the end of the suction pipe 440 facing the inlet pipe 200 has a surrounding edge 444 and a first clamping portion 445.

[0207] The second clamping portion 110 is arranged in the housing 100, and the first clamping portion 445 and the second clamping portion 110 are clamped and matched to stably assemble the suction pipe 440 on the housing 100, so as to ensure the matching dimensions of the suction pipe 440 and the inlet pipe 200. It can be understood that the other end of the suction pipe 440 is connected to the inlet pipe 200 through the housing 100.

[0208] The surrounding edge 444 abuts against the inner surface of the housing 100, so that when the refrigerant flows into the suction pipe 440 through the inlet pipe 200, the amount of refrigerant directly flowing into the first chamber 420 through the connection between the suction pipe 440 and the housing 100 can be reduced, thereby providing structural support for ensuring the noise reduction effect and suction efficiency of the muffler 10.

[0209] The embodiment provides a silencer 10, in addition to the technical features of the above-mentioned embodiment, and further comprises the following technical features. Figure 5 As shown, the other end of the suction pipe 440 has a gap with the inner surface of the shell 100.

[0210] In this embodiment, the further cooperation structure of the suction pipe 440 and the shell 100 is that one end of the suction pipe 440 is connected with the first through hole 412, and the other end of the suction pipe 440 has a gap with the inner surface of the shell 100. The gap between the other end of the suction pipe 440 and the inner surface of the shell 100 can meet the use requirement that the suction pipe 440 is in communication with the first chamber 420.

[0211] When the compressor works, the refrigerant enters the first chamber 420 from the inlet pipe 200, expands and silences in the first chamber 420, enters the suction pipe 440 from the other end of the suction pipe 440, is then guided into the second chamber 430 through the first through hole 412, expands and silences again in the second chamber 430, and then flows into the guide pipe 450 through the second through hole 414, and then flows to the outlet pipe 300 and is discharged from the silencer 10 through the outlet pipe 300.

[0212] The flow cross-sectional area of the other end of the suction pipe 440 is smaller than the flow cross-sectional area of the first chamber 420, so that the silencer 10 causes the sound waves propagating along the other end of the suction pipe 440 and the first chamber 420 to be reflected to generate transmission loss, thereby achieving the purpose of silencing and noise reduction.

[0213] The embodiment provides a silencer 10, in addition to the technical features of the above-mentioned embodiment, and further comprises the following technical features: when the other end of the suction pipe 440 has a gap with the inner surface of the shell 100, the suction pipe 440 is oppositely arranged with the inlet pipe 200.

[0214] In this embodiment, the cooperation structure of the suction pipe 440 and the inlet pipe 200 is further limited, so that the suction pipe 440 is oppositely arranged with the inlet pipe 200. That is, the suction pipe 440 is oppositely and spacedly arranged with the inlet pipe 200, which forces the sound waves to flow a longer path in the silencer 10, increases the propagation distance, and makes the sound wave energy gradually attenuate in the reflection and absorption process, so as to improve the silencing effect of the silencer 10.

[0215] The embodiment provides a silencer 10, in addition to the technical features of the above-mentioned embodiment, and further comprises the following technical features: when the other end of the suction pipe 440 has a gap with the inner surface of the shell 100, the flow cross-sectional area of at least a part of the suction pipe 440 is equal in the direction from the inlet pipe 200 to the suction pipe 440.

[0216] In this embodiment, the structure of the suction pipe 440 is defined such that the flow cross-sectional areas of at least a portion of the suction pipe 440 are equal in the direction from the inlet pipe 200 to the suction pipe 440. That is, the flow cross-sectional areas of a portion of the suction pipe 440 are equal in the direction from the inlet pipe 200 to the suction pipe 440. Alternatively, the flow cross-sectional areas of the entire suction pipe 440 are equal in the direction from the inlet pipe 200 to the suction pipe 440.

[0217] This arrangement keeps the velocity of the refrigerant flowing through the suction pipe 440 balanced, reduces flow separation and vortex caused by cross-sectional changes, and thus is conducive to reducing noise. At the same time, this arrangement can reduce the resistance of the refrigerant flowing through the suction pipe 440, reduce the pressure drop, and improve the suction efficiency.

[0218] This embodiment provides a silencer 10, in addition to the technical features of the above-mentioned embodiments, further comprising the following technical features, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown in FIGS. 4A and 4B, the baffle assembly 400 further comprises a flow guide plate 460.

[0219] The flow guide plate 460 is located in the second chamber 430.

[0220] The flow guide plate 460 and the partition 410 are connected and enclose a flow guide cavity 472 having an opening 474.

[0221] A portion of the opening 474 is located adjacent to the second through hole 414.

[0222] The flow guide plate 460 is used to guide the flow to the second through hole 414.

[0223] In this embodiment, the structure of the partition assembly 400 is further defined. The partition assembly 400 further comprises a flow guide plate 460 located in the second chamber 430, the flow guide plate 460 and the partition 410 are connected and enclose a flow guide cavity 472 having an opening 474, the refrigerant in the second chamber 430 can flow into the flow guide cavity 472 through the opening 474, and under the flow guide of the flow guide plate 460, the refrigerant flows to the second through hole 414, the flow guide cavity 472 enclosed by the flow guide plate 460 and the partition 410 has the effect of guiding the refrigerant to the second through hole 414, when the refrigerant flows into the flow guide cavity 472, the cavity wall of the flow guide cavity 472 has the effect of integrating the refrigerant, which can reduce the turning of the refrigerant and reduce the flow loss of the refrigerant, so that more energy is converted into dynamic pressure, thereby facilitating the improvement of air volume, avoiding the case that the flow loss of the refrigerant is large and the aerodynamic performance is poor due to excessive speed energy, thereby reducing the air volume, facilitating the improvement of suction efficiency, and facilitating the improvement of energy efficiency of the compressor. At the same time, the flow guide cavity 472 has the effects of collecting flow and directing the flow of the refrigerant to the second through hole 414, which can reduce the frequency of occurrence of phenomena such as flow separation, flow separation, vortex, etc., and is conducive to further reducing noise.

[0224] The present embodiment provides a muffler 10, in addition to the technical features of the above-mentioned embodiments, the present embodiment further comprises the following technical features, the flow guide cavity 472 and the flow guide pipe 450 extend along the first direction.

[0225] Along the first direction, a portion of the opening 474 is located below the second through hole 414.

[0226] In this embodiment, the flow guide pipe 450 extends along the first direction, and the flow guide cavity 472 extends along the first direction. Along the first direction, a portion of the opening 474 is located below the second through hole 414. That is, after the refrigerant expands and is damped in the second chamber 430, it flows into the second through hole 414 above the opening 474 after being guided by the flow guide cavity 472 extending along the first direction, and then flows to the outlet pipe 300 through the flow guide pipe 450 extending along the first direction to discharge the muffler 10. The flow direction of the refrigerant in the flow guide cavity 472 and the flow guide pipe 450 matches, so that the turning of the airflow can be reduced, the flow loss of the refrigerant can be reduced, more energy can be converted into dynamic pressure, thereby facilitating the improvement of air volume, avoiding the case that the flow loss of the refrigerant is large and the aerodynamic performance is poor due to excessive speed energy, thereby reducing the air volume, facilitating the improvement of suction efficiency, and facilitating the improvement of energy efficiency of the compressor.

[0227] The present embodiment provides a muffler 10, in addition to the technical features of the above-mentioned embodiments, the present embodiment further comprises the following technical features, along the second direction, the first chamber 420 is located on one side of the second chamber 430, and the suction pipe 440 is located between the inlet pipe 200 and the flow guide plate 460.

[0228] In the first direction, the flow guide pipe 450 is located between the outlet pipe 300 and the suction pipe 440.

[0229] In this embodiment, the cooperation structure of the first chamber 420, the second chamber 430, the suction pipe 440, the inlet pipe 200, the flow guide plate 460 and the flow guide pipe 450 is further defined.

[0230] In the second direction, the first chamber 420 is located on one side of the second chamber 430, and the suction pipe 440 is located between the inlet pipe 200 and the flow guide plate 460. In the first direction, the flow guide pipe 450 is located between the outlet pipe 300 and the suction pipe 440.

[0231] This arrangement matches the arrangement positions of the first chamber 420 and the second chamber 430 with those of the suction pipe 440, the inlet pipe 200, the flow guide plate 460 and the flow guide pipe 450, so as to effectively reduce the turning of the refrigerant flowing through the suction pipe 440, the flow guide cavity 472 and the flow guide pipe 450, reduce the flow loss of the refrigerant, and make more energy converted into dynamic pressure, thereby facilitating the improvement of air volume, avoiding the situation that the flow loss of the refrigerant is large and the aerodynamic performance is poor due to excessive speed energy, thereby reducing the air volume, and facilitating the improvement of suction efficiency and the energy efficiency of the compressor.

[0232] This embodiment provides a muffler 10, in addition to the technical features of the above-mentioned embodiments, further comprising the following technical features, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The shell 100 includes a first sub-shell 120 and a second sub-shell 130.

[0233] The inlet pipe 200 is arranged in the first sub-shell 120.

[0234] In the first direction, the second sub-shell 130 is arranged on one side of the first sub-shell 120.

[0235] The outlet pipe 300 is arranged in the second sub-shell 130.

[0236] The partition assembly 400 is connected between the first sub-shell 120 and the second sub-shell 130.

[0237] In this embodiment, the structure of the shell 100 is defined, and the shell 100 includes the first sub-shell 120 and the second sub-shell 130.

[0238] An inlet pipe 200 is disposed in the first sub-shell 120, and an outlet pipe 300 is disposed in the second sub-shell 130. Along a first direction, the second sub-shell 130 is disposed on one side of the first sub-shell 120, and a partition assembly 400 is connected between the first sub-shell 120 and the second sub-shell 130. That is, the inner surface of the first sub-shell 120, the inner surface of the second sub-shell 130, and the partition portion 410 enclose the first chamber 420 and the second chamber 430.

[0239] This design reduces the assembly difficulty of the housing 100 and the partition assembly 400, improves assembly efficiency, and facilitates subsequent repair and maintenance.

[0240] A compressor according to some embodiments of this application includes: a muffler 10 as described in any of the above embodiments.

[0241] The compressor provided in this application includes a muffler 10 as described in any of the above embodiments, and therefore has all the beneficial effects of the muffler 10, which will not be described in detail here.

[0242] A refrigeration device according to some embodiments of this application includes: a compressor as described in the above embodiments.

[0243] The refrigeration equipment provided in this application includes a compressor as described in the above embodiments, and therefore has all the beneficial effects of the compressor described above, which will not be described in detail here.

[0244] For example, the compressor in this application includes a reciprocating compressor.

[0245] The silencer 10 includes a housing 100, an inlet pipe 200, an outlet pipe 300, and a baffle assembly 400. The housing 100 includes a first sub-housing 120 and a second sub-housing 130. The baffle assembly 400 includes a partition 410, an intake pipe 440, a guide pipe 450, and a guide plate 460.

[0246] like Figure 3 , Figure 4 and Figure 5 As shown, the first sub-shell 120 and the second sub-shell 130 are closed to form a large silencing cavity, and the partition 410 divides the silencing cavity into two parts (the two parts include the first chamber 420 and the second chamber 430).

[0247] The intake pipe 440, the guide pipe 450, and the guide plate 460 are all connected to the first partition 413. The outlet pipe 300 is located in the second sub-shell 130, and the inlet pipe 200 is located in the first sub-shell 120.

[0248] The first end 452 of the guide tube 450 is connected to the second through hole 414 of the first partition 413, and the second end 454 of the guide tube 450 is connected to the outlet tube 300.

[0249] The first end 452 of the flow guide pipe 450 is connected with the second through hole 414 of the first partition plate 413, the second end 454 of the flow guide pipe 450 is connected with the outlet pipe 300, and the flow guide pipe 450 is provided with a first communication port 456 which communicates with the first chamber 420.

[0250] When the compressor works, the refrigerant is sucked into the first chamber 420 by the inlet pipe 200, expanded and damped in the first chamber 420, then sucked into the second chamber 430 by the suction pipe 440, expanded and damped again in the second chamber 430, then enters the flow guide pipe 450 through the flow guide plate 460, and finally is discharged by the outlet pipe 300.

[0251] The first partition plate 413 is provided with a first through hole 412, one end of the suction pipe 440 is connected with the first through hole 412, and the suction pipe 440 communicates with the first chamber 420 and the second chamber 430.

[0252] The sound damper 10 of the present application is expanded and damped for multiple times, and combined with the flow guide of the flow guide pipe 450 and the flow guide of the flow guide plate 460, so that the noise of the compressor is reduced and the use performance of the compressor is improved.

[0253] Exemplarily, the reciprocating compressor of the present application comprises a three-chamber suction sound damper 10. The sound damper 10 comprises a first sub-shell 120, a second sub-shell 130 and a partition assembly 400. The first sub-shell 120 and the second sub-shell 130 form a large sound damping chamber, and the partition assembly 400 comprises a partition part 410 which comprises a second partition plate 417 (such as a vertical plate) and a third partition plate 415 (such as a horizontal plate). After the partition part 410 is inserted into the sound damping chamber, the sound damping chamber is divided into three parts, which comprise a first chamber 420, a second chamber 430 and a third chamber 480. The partition part 410 is further provided with a suction pipe 440, a flow guide plate 460 and a flow guide pipe 450. The first sub-shell 120 is provided with an inlet pipe 200. The second sub-shell 130 is provided with an outlet pipe 300.

[0254] One end of the suction pipe 440 is connected with the first through hole 412, and the other end of the suction pipe 440 communicates with the first chamber 420.

[0255] The flow guide pipe 450 comprises a first end 452 and a second end 454, the first end 452 is connected with the second through hole 414, and the second end 454 communicates with the third chamber 480.

[0256] The refrigerant gas is sucked into the first chamber 420 by the inlet pipe 200, expanded and damped in the first chamber 420, and then sucked into the second chamber 430 by the suction pipe 440. The refrigerant gas is expanded and damped again in the second chamber 430, and then enters the flow guide pipe 450 through the flow guide plate 460. The refrigerant gas is expanded and damped again in the third chamber 480 through the flow guide pipe 450, and finally discharged through the outlet pipe 300. The muffler 10 is expanded and damped for multiple times, and the flow guide pipe 450 and the flow guide plate 460 are used to guide the flow, so that the performance of the compressor can be improved while reducing the noise of the compressor.

[0257] In the present application, the term "a plurality of" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connected", "connecting", "fixed", and the like should be interpreted broadly, for example, "connected" can be fixed connection, can also be detachable connection, or integral connection; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0258] In the description of the present application, the terms "one embodiment", "some embodiments", "a specific embodiment", and the like, mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily mean 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. The above is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A muffler characterized by comprising: include: case; Inlet pipe; An outlet pipe, wherein both the inlet pipe and the outlet pipe are disposed on the housing; A partition assembly, disposed within the housing, comprises: The partition and the inner surface of the housing enclose a plurality of chambers, the plurality of chambers including a first chamber and a second chamber, the inlet pipe communicating with the first chamber, the partition having a first through hole and a second through hole, either the first through hole or the second through hole communicating with the first chamber and the second chamber; An air inhalation tube is located in the first chamber, one end of which is connected to the first through hole, and the air inhalation tube communicates with the first chamber. The guide tube includes a first end and a second end, the first end being located in the first chamber and connected to the second through hole, and the second end being connected to the outlet tube.

2. The muffler of claim 1, wherein The second end is directly connected to the outlet pipe.

3. The muffler of claim 2, wherein The guide tube also includes a tube body, which is connected between the first end and the second end; The tube is located in the first chamber; or A portion of the tube is located in the first chamber, and another portion of the tube is located in the second chamber.

4. The muffler of claim 2, wherein The partition includes a first partition, and the first partition and the inner surface of the housing enclose the first chamber and the second chamber; The outlet pipe and the inlet pipe are located on the same side of the first partition; or The first partition is located between the outlet pipe and the inlet pipe.

5. The muffler of claim 1, wherein The plurality of chambers also includes a third chamber, through which the second end is connected to the outlet pipe.

6. The muffler of claim 5, wherein The partition includes: The second partition is provided with the first through hole and the second through hole; The third partition is connected to one side of the second partition and has a third through hole. The second partition, the third partition, and the inner surface of the first part of the housing enclose the first chamber and the second chamber. The inner surface of the second part of the housing encloses the third chamber. The second end extends into the third chamber through the third through hole and has a gap with the outlet pipe.

7. The muffler of any one of claims 1 to 6, wherein, The other end of the suction pipe is connected to the inlet pipe through the housing. The suction pipe has a second connecting port on its wall, which connects to the first chamber.

8. The muffler of claim 7, wherein Along the direction from the inlet pipe to the intake pipe, the cross-sectional area of ​​at least a portion of the intake pipe gradually decreases.

9. The muffler of claim 8, wherein The suction pipe includes a first connecting section and a second connecting section. The first connecting section is connected between the inlet pipe and the second connecting section. The second connecting section is connected to the first through hole. The flow cross-sectional area of ​​the first connecting section is larger than the flow cross-sectional area of ​​the second connecting section. The second connecting section is provided with a second communication port. Along the direction from the inlet pipe to the intake pipe, the cross-sectional area of ​​the first connecting section gradually decreases.

10. The muffler of claim 7, wherein The cross-sectional area of ​​the intake pipe facing the inlet pipe is greater than the cross-sectional area of ​​the inlet pipe facing the intake pipe; and / or The air suction pipe has a surrounding edge and a first clamping part at one end of the inlet pipe; the shell is provided with a second clamping part, the second clamping part is clamped and matched with the first clamping part, and the surrounding edge abuts against the inner surface of the shell.

11. The muffler of any one of claims 1 to 6, wherein, The flow guide pipe is provided with a first communication port, and the first communication port communicates with the first chamber; and / or The other end of the air suction pipe has a gap with the inner surface of the shell.

12. The muffler of claim 11, wherein, When the other end of the air suction pipe has a gap with the inner surface of the shell, the air suction pipe is arranged opposite to the inlet pipe; and / or When the other end of the air suction pipe has a gap with the inner surface of the shell, the flow cross-sectional area of at least a part of the air suction pipe is equal in the direction from the inlet pipe to the air suction pipe.

13. The muffler of any one of claims 1 to 6, wherein, The baffle assembly further comprises: A flow guide plate is arranged in the second chamber, the flow guide plate is connected with the partition and encloses a flow guide chamber with an opening, and a part of the opening is arranged close to the second through hole, and the flow guide plate is used for guiding flow to the second through hole.

14. The muffler of claim 13, wherein, The flow guide chamber and the flow guide pipe extend in a first direction; In the first direction, a part of the opening is located below the second through hole.

15. The muffler of claim 14, wherein In a second direction, the first chamber is located on one side of the second chamber, and the air suction pipe is located between the inlet pipe and the flow guide plate; In the first direction, the flow guide pipe is located between the outlet pipe and the air suction pipe; And / or The shell comprises: A first sub-shell, and the inlet pipe is arranged in the first sub-shell; A second sub-shell, and in the first direction, the second sub-shell is arranged on one side of the first sub-shell, the outlet pipe is arranged in the second sub-shell, and the baffle assembly is connected between the first sub-shell and the second sub-shell.

16. A compressor characterized by, It comprises: The muffler according to any one of claims 1 to 15.

17. A refrigeration appliance characterized by, It comprises: The compressor according to claim 16.

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