Muffler structure and compressor having the same

Abstract

The present invention provides a muffler structure and a compressor having the same. The muffler structure includes: a shell; an isolating portion, which is arranged in the shell to divide the inside of the shell into a plurality of interconnected muffler chambers; an exhaust pipe, one end of which extends into the shell and is connected to one of the plurality of muffler chambers; an air intake pipe, one end of which extends into the shell and is connected to another of the plurality of muffler chambers, and the refrigerant entering the shell from the air intake pipe passes through the plurality of muffler chambers and is discharged from the shell through the exhaust pipe. This arrangement can effectively increase the stroke of the refrigerant in the muffler shell. As the refrigerant stroke increases, the flow time of the refrigerant in the shell is also prolonged, which can effectively reduce the pulsation generated by the refrigerant during the flow process, and then reduce the noise generated by the refrigerant during the transmission process, effectively improving the practicality of the muffler and increasing the user experience of the compressor having the muffler structure.

Description

Technical Field

[0001] The present invention relates to the technical field of compressor equipment, and in particular to a muffler structure and a compressor having the same. Background Art

[0002] The compressors in current refrigerators are small piston refrigeration compressors with a crank-connecting rod mechanism. The motor drives the crankshaft and then drives the connecting rod and piston. The reed-type intake and exhaust valves are used to inhale and compress the refrigerant. Since the intake and compression of the refrigerant at a specific frequency are not continuous, the refrigerant will vibrate during the transmission process, thereby generating gas noise. In order to reduce noise, an intake muffler and an exhaust muffler are provided at the intake pipe and the exhaust pipe of the compressor. Existing exhaust mufflers are generally divided into two types. One is an exhaust cavity cast as one with the cylinder seat. Most of them are columnar structures connected to the exhaust pipe through a coiled slender tube for exhaust. Although the parts processing is more economical, it undoubtedly increases the volume, mass and imbalance of the cylinder seat, resulting in poor insulation and unsatisfactory silencing effects, which ultimately affect the efficiency of the entire machine. Another type of exhaust muffler is independently suspended above the cylinder seat and connected in series with the exhaust pipeline. Most of them are columnar or capsule structures, such as Figure 1 As shown, 11 is the first through hole, 13 is the second through hole, the refrigerant enters from the air inlet pipe, and is discharged from the air outlet pipe. The entire exhaust muffler presents an expansion type muffler cavity, with the pipeline inserted inside, the axis of the air inlet pipeline and the exhaust pipeline aligned, the gas directly hits the inner wall of the cavity, the exhaust pulsation is large, and a large vibration is formed on the internal exhaust pipe, which is transmitted to the shell and radiated through the shell, thereby bringing a large noise to the whole machine. Summary of the invention

[0003] The main purpose of the present invention is to provide a muffler structure and a compressor having the same, so as to solve the problem of high noise of the compressor in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a muffler structure is provided, comprising: a shell; an isolating portion, the isolating portion being arranged in the shell to divide the interior of the shell into a plurality of interconnected muffler chambers; an exhaust pipe, one end of the exhaust pipe extending into the shell and being connected to one of the plurality of muffler chambers; an air inlet pipe, one end of the air inlet pipe extending into the shell and being connected to another of the plurality of muffler chambers, the refrigerant entering the shell from the air inlet pipe passing through the plurality of muffler chambers is discharged outside the shell through the exhaust pipe.

[0005] Furthermore, the multiple silencing chambers include an upper cavity and a lower cavity, and the isolation part includes: a partition, which extends along the radial direction of the shell to divide the shell into an upper cavity and a lower cavity, and a partition through hole connected to the upper cavity and the lower cavity is opened on the partition.

[0006] Furthermore, one end of the exhaust pipe extends into the lower cavity and passes through the partition to communicate with the upper cavity.

[0007] Furthermore, one end of the air inlet pipe extends into the upper cavity and passes through multiple partitions to communicate with the lower cavity. The refrigerant flowing into the air inlet pipe flows into the lower cavity and then flows into the upper cavity through the through holes of the partitions.

[0008] Furthermore, one end of the exhaust pipe extends into the lower cavity and is arranged at a distance from the partition, and one end of the intake pipe extends into the upper cavity and is arranged at a distance from the partition.

[0009] Further, the distance from the end of the exhaust pipe to the partition is different from the distance from the end of the intake pipe to the partition.

[0010] Furthermore, the isolation part also includes: a first baffle, which is arranged in the upper cavity, the first end of the first baffle is connected to the partition, the second end of the first baffle extends along the axial direction of the upper cavity and is arranged at a distance from the inner wall of the upper cavity, the first baffle divides the upper cavity into multiple first silencer chambers, and one end of the air intake pipe extends into one of the multiple first silencer chambers.

[0011] Further, the inner diameter of at least one first sound-absorbing chamber among the plurality of first sound-absorbing chambers is different from the inner diameters of the remaining first sound-absorbing chambers.

[0012] Furthermore, there are multiple first baffles, which are arranged at intervals and enclosed with the inner wall of the upper cavity to form multiple first silencing chambers.

[0013] Furthermore, the isolation part also includes: a second baffle, which is arranged in the lower cavity, the first end of the second baffle is connected to the partition, the second end of the second baffle extends along the axial direction of the lower cavity and is arranged at a distance from the inner wall of the lower cavity, the second baffle divides the lower cavity into a plurality of second silencer chambers, and one end of the exhaust pipe extends into one of the plurality of second silencer chambers.

[0014] Further, the inner diameter of at least one of the plurality of second silencing chambers is different from the inner diameters of the remaining second silencing chambers.

[0015] Furthermore, there are multiple second baffles, which are arranged at intervals and enclosed with the inner wall of the lower cavity to form multiple second silencing chambers.

[0016] Furthermore, the shell comprises: an inner shell and an outer shell, and a distance is provided between the inner shell and the outer shell to form a heat-insulating gap.

[0017] According to another aspect of the present invention, a compressor is provided, comprising a muffler structure, wherein the muffler structure is the muffler structure described above.

[0018] By applying the technical solution of the present invention, an isolation portion is provided in the shell of the silencer, and the isolation portion divides the interior of the shell into multiple silencer chambers, so that the refrigerant entering the shell from one end of the intake pipe passes through multiple silencer chambers and is then discharged out of the silencer shell through the exhaust pipe. Such an arrangement can effectively increase the stroke of the refrigerant in the silencer shell. Since the refrigerant stroke is increased, the flow time of the refrigerant in the shell is also extended, which can effectively reduce the pulsation generated by the refrigerant during the flow process, and then reduce the noise generated by the refrigerant during the transmission process, effectively improving the practicability of the silencer and increasing the user experience of the compressor with the silencer structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 The structure schematic diagram of the muffler in the prior art is shown;

[0021] Figure 2 A schematic cross-sectional view of a first embodiment of a muffler structure according to the present invention is shown;

[0022] Figure 3 Shows Figure 2 Schematic diagram of the structure in the middle AA direction;

[0023] Figure 4 A schematic cross-sectional view of a second embodiment of a muffler structure according to the present invention is shown;

[0024] Figure 5 Shows Figure 4 Schematic diagram of the structure in the middle BB direction;

[0025] Figure 6 A schematic diagram of an exploded structure of an embodiment of a muffler structure according to the present invention is shown;

[0026] Figure 7 A schematic structural diagram of an embodiment of a compressor according to the present invention is shown.

[0027] The above drawings include the following reference numerals:

[0028] 10. Shell; 11. Inner shell; 12. Outer shell;

[0029] 20, isolation part; 21, partition; 211, partition through hole; 22, first baffle; 23, second baffle;

[0030] 30. Exhaust pipe;

[0031] 40. Intake pipe;

[0032] 51, upper cavity; 511, first anechoic chamber; 52, lower cavity; 521, second anechoic chamber;

[0033] 61. Crankshaft; 62. Connecting rod; 63. Lower housing; 64. Piston; 65. Cylinder seat; 66. Valve group assembly; 67. Cylinder head; 68. Intake muffler; 69. Internal exhaust pipe. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0037] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0038] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0039] Combination Figures 2 to 7 As shown, in combination with the embodiments of the present application, a muffler structure is provided.

[0040] Specifically, Figure 2 As shown, the muffler structure includes a shell 10, a partition 20, an exhaust pipe 30 and an intake pipe 40. The partition 20 is arranged in the shell 10 to divide the interior of the shell 10 into a plurality of interconnected muffler chambers. One end of the exhaust pipe 30 extends into the shell 10 and is connected to one of the plurality of muffler chambers. One end of the intake pipe 40 extends into the shell 10 and is connected to another muffler chamber among the plurality of muffler chambers. The refrigerant entering the shell 10 from the intake pipe 40 passes through the plurality of muffler chambers and is discharged from the shell 10 through the exhaust pipe 30.

[0041] In this embodiment, an isolation portion is provided in the shell of the muffler, and the isolation portion divides the interior of the shell into a plurality of muffler chambers, so that the refrigerant entering the shell from one end of the intake pipe passes through a plurality of muffler chambers and is then discharged out of the muffler shell through the exhaust pipe. Such an arrangement can effectively increase the stroke of the refrigerant in the muffler shell. Since the refrigerant stroke is increased, the flow time of the refrigerant in the shell is also prolonged, which can effectively reduce the pulsation generated by the refrigerant during the flow process, and then reduce the noise generated by the refrigerant during the transmission process, thereby effectively improving the practicability of the muffler and increasing the user experience of the compressor having the muffler structure.

[0042] Among them, Figure 2 As shown in FIG. 3 , the plurality of silencing chambers include an upper cavity 51 and a lower cavity 52. ​​The isolation portion 20 includes a partition 21. The partition 21 is extended along the radial direction of the shell 10 to divide the shell 10 into an upper cavity 51 and a lower cavity 52, and a partition through hole 211 communicating with the upper cavity 51 and the lower cavity 52 is provided on the partition 21. This arrangement can increase the travel of the refrigerant in the shell 10, thereby effectively reducing the noise generated by the refrigerant during the transmission process.

[0043] like Figure 4 and Figure 5 As shown, in one embodiment of the present application, one end of the exhaust pipe 30 extends into the lower cavity 52 and passes through the partition 21 to communicate with the upper cavity 51. One end of the intake pipe 40 extends into the upper cavity 51 and passes through the partition 21 to communicate with the lower cavity 52. ​​The refrigerant flowing in from the intake pipe 40 flows to the lower cavity 52 and then flows into the upper cavity 51 through the partition through hole 211. This arrangement enables the refrigerant to first enter the lower cavity 52 through the intake pipe 40 and then enter the upper cavity 51 through the partition through hole 211, and then be discharged from the shell of the muffler through the exhaust pipe 30. This arrangement can effectively reduce the noise generated by the refrigerant. Among them, the partition through hole 211 can be set between the exhaust pipe 30 and the intake pipe 40, or the partition through hole 211 can be set on one side of either the exhaust pipe 30 or the intake pipe 40.

[0044] like Figure 2 and Figure 3 As shown, in another embodiment of the present application, one end of the exhaust pipe 30 extends into the lower cavity 52 and is arranged at a distance from the partition 21, and one end of the intake pipe 40 extends into the upper cavity 51 and is arranged at a distance from the partition 21. In this embodiment, since the partition 21 is located between the exhaust pipe 30 and the intake pipe 40, the exhaust pipe 30 can be arranged opposite to the intake pipe 40.

[0045] In order to further reduce the noise of the muffler, the distance from the end of the exhaust pipe 30 to the partition 21 and the distance from the end of the intake pipe 40 to the partition 21 are set in different ways. This arrangement enables the refrigerant to reduce noise of different frequency bands in different muffler chambers.

[0046] Furthermore, the isolation part 20 further includes a first baffle 22. The first baffle 22 is disposed in the upper cavity 51, a first end of the first baffle 22 is connected to the partition 21, a second end of the first baffle 22 extends along the axial direction of the upper cavity 51 and is disposed at a distance from the inner wall of the upper cavity 51, and the first baffle 22 divides the upper cavity 51 into a plurality of first silencing chambers 511, and one end of the air inlet pipe 40 extends into one of the plurality of first silencing chambers 511. Such an arrangement can increase the travel of the refrigerant in the upper cavity 51, and effectively play a role in reducing the noise generated by the refrigerant during the transmission process.

[0047] In order to enable each anechoic chamber to reduce noise in different frequency bands, the inner diameter of at least one first anechoic chamber 511 among the plurality of first anechoic chambers 511 is set to be different from the inner diameters of the other first anechoic chambers 511 .

[0048] Preferably, there are a plurality of first baffles 22, which are arranged at intervals and enclosed with the inner wall of the upper cavity 51 to form a plurality of first silencing chambers 511. Figure 2 and Figure 3 As shown, there are two first baffles 22, and the baffle through hole 211 is arranged in a muffler chamber farthest from the outlet end of the air inlet pipe 40. Such an arrangement enables the refrigerant to flow through each muffler chamber in sequence and then be discharged out of the shell.

[0049] The isolation part 20 further includes a second baffle 23. The second baffle 23 is disposed in the lower cavity 52, a first end of the second baffle 23 is connected to the partition 21, a second end of the second baffle 23 extends along the axial direction of the lower cavity 52 and is disposed at a distance from the inner wall of the lower cavity 52, and the second baffle 23 divides the lower cavity 52 into a plurality of second silencing chambers 521, and one end of the exhaust pipe 30 extends into a second silencing chamber 521 among the plurality of second silencing chambers 521. Such an arrangement can increase the travel of the refrigerant in the lower cavity 52, and effectively play a role in reducing the noise generated by the refrigerant during the transmission process.

[0050] In order to achieve that each anechoic chamber reduces noise in different frequency bands, the inner diameter of at least one second anechoic chamber 521 among the plurality of second anechoic chambers 521 is set to be different from the inner diameters of the other second anechoic chambers 521 .

[0051] There are multiple second baffles 23, which are arranged at intervals and enclosed with the inner wall of the lower cavity 52 to form multiple second silencing chambers 521. Figure 2 and Figure 3 As shown, there are two second baffles 23, and the baffle through hole 211 is arranged in a muffler chamber farthest from the outlet end of the exhaust pipe 30. Such an arrangement enables the refrigerant to flow through each muffler chamber in sequence and then be discharged out of the shell.

[0052] Furthermore, the housing 10 includes an inner housing 11 and an outer housing 12. A heat-insulating gap is formed by partially setting the inner housing 11 and the outer housing 12 at a distance. Such a setting can effectively reduce the external temperature of the muffler and effectively improve the practicality and reliability of the muffler structure.

[0053] The muffler structure in the above embodiment can also be used in the technical field of compressor equipment, that is, according to another aspect of the present invention, a compressor is provided. The compressor includes a muffler structure, and the muffler structure is the muffler structure in the above embodiment.

[0054] Specifically, the upper muffler cavity and the lower muffler cavity are divided into different chambers by arranging a partition plate and a baffle plate, thereby solving the problem of high exhaust noise of the compressor. The muffler structure is adopted, so that the muffler is light in weight and small in size, thus solving the problem of insufficient installation space of the traditional compressor.

[0055] Among them, in this embodiment, there are four baffle structures in total. By welding four baffles of different heights to the partition, the upper and lower cavities are divided into six silencer chambers. The upper and lower cavities are connected through the partition through holes. The gas moves left and right through the chambers separated by the baffles, which increases the flow path of the refrigerant in the exhaust silencer chamber, thereby enhancing the exhaust silencer effect and reducing noise. Since the installation space between the pump body and the upper and lower shells 63 is very small, and this silencer is light in weight and small in size compared to the silencer chamber cast as one with the cylinder seat, the economy of the silencer chamber assembly is improved, thereby reducing the weight of the whole machine.

[0056] Specifically, in this embodiment, the exhaust muffler is divided into an upper cavity and a lower cavity by a partition, and the upper and lower cavities are connected through the partition through hole. Four baffles of different heights are welded on the partition to separate the upper and lower cavities into six silencer chambers, which can widen the silencer frequency. In addition, due to the interaction between the baffle and the partition, the movement time of the refrigerant in the exhaust silencer cavity is prolonged, the transmission loss is increased, and the silencer volume is increased. Since this exhaust muffler is brazed together, it is small in size and light in weight, which simplifies the processing technology and installation process, improves the economy of parts, and thus reduces manufacturing costs.

[0057] Figure 7This is a schematic diagram of the refrigeration compressor structure of the present application. The compressor pump body is composed of a crankshaft 61, a piston 64, a connecting rod 62, a cylinder seat 65, a valve group assembly 66, an air suction muffler 68 and a muffler structure. The piston compressor pump body is placed on the lower housing through a compression spring. The crankshaft drives the connecting rod and the piston in the cylinder seat cavity to perform the suction, compression, exhaust and expansion processes under the drive of the motor (not shown in the figure). Since the suction and compression of the refrigerant at a specific frequency are not continuous, the refrigerant will vibrate during the transmission process, thereby generating gas noise. In order to reduce noise, an air suction muffler and an exhaust muffler, i.e., a muffler structure, are provided at the intake pipe and the exhaust pipe of the compressor. In the present application, the compressor eliminates the cast silencer chamber, and the high-temperature and high-pressure gas discharged from the cylinder head 67 is directly discharged into the exhaust silencer chamber through the internal exhaust pipe 69, thereby avoiding the high-temperature and high-pressure gas from being discharged into the cast silencer chamber (the cavity of this exhaust silencer is composed of inner and outer walls and a heat-insulating gap formed between the inner and outer walls), making the gas temperature in the entire compressor cavity very high, and then the intake silencer inhales a higher temperature, causing the intake air to overheat, affecting the efficiency of the compressor.

[0058] Among them, the high-temperature and high-pressure gas discharged from the cylinder head enters the upper cavity through the intake pipe of the inner exhaust pipe (the ratio of the cross-sectional area of ​​the upper cavity to the cross-sectional area of ​​the intake pipe is called the expansion ratio. The larger the expansion ratio, the greater the muffler volume. Considering the limitation of the installation space, this expansion ratio is the best). The gas hits the partition and returns, and then enters the chamber formed between the two baffles, and then hits the partition again and returns to enter the chamber formed by the top baffle, and then enters the chamber formed by the top baffle in the lower cavity through the partition hole, and then enters the chamber formed by the two baffles, and finally enters the chamber formed by the bottom baffle and is discharged from the exhaust pipe. Generally, the muffler characteristic of the muffler changes periodically, and some frequencies can pass through the muffler without attenuation. However, the frequency range of noise is generally wide. If the silencer can only eliminate certain frequency components and let other frequencies pass smoothly, this is obviously unacceptable. Therefore, the space sizes of the six silencer chambers need to be set in different ways. The depth of the intake pipe inserted into the upper chamber and the depth of the exhaust pipe inserted into the lower chamber are different, so that the frequencies they pass through are staggered, which widens the silencer frequency of the exhaust silencer. At the same time, the movement time of the refrigerant in the exhaust silencer chamber is prolonged, the transmission loss is increased, the silencer volume is increased, and the sudden expansion or contraction of the cross-section will cause a sudden change in the acoustic impedance in the channel, so that certain frequency sound waves propagating along the pipeline cannot pass through the silencer and are reflected back to the source. Since the sound waves cannot pass through the silencer, they cannot be transmitted, thereby achieving the purpose of silencer.

[0059] like Figure 4 and Figure 5As shown, the intake pipe is inserted into the lower cavity through the partition by welding, and the exhaust pipe is also inserted into the upper cavity through the partition by welding, and the through hole of the partition is adjusted to the middle of the partition. The movement time of the refrigerant in the exhaust silencer cavity is prolonged without affecting the performance, the transmission loss is increased, and the sound absorption volume is increased, thereby effectively reducing the noise.

[0060] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present invention.

[0061] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A muffler structure, characterized in that: include: Housing (10); An isolation portion (20), the isolation portion (20) being arranged in the shell (10) to separate the interior of the shell (10) into a plurality of interconnected silencing chambers; an exhaust pipe (30), one end of the exhaust pipe (30) extending into the housing (10) and communicating with one of the plurality of silencing chambers; an air intake pipe (40), one end of the air intake pipe (40) extending into the shell (10) and communicating with another of the plurality of silencing chambers, wherein the refrigerant entering the shell (10) from the air intake pipe (40) passes through the plurality of silencing chambers and is discharged out of the shell (10) through the exhaust pipe (30); The plurality of silencing chambers include an upper cavity (51) and a lower cavity (52), and the isolation portion (20) includes: a partition (21), the partition (21) extending in a radial direction of the shell (10) to divide the shell (10) into the upper cavity (51) and the lower cavity (52), the partition through hole (211) being connected to the upper cavity (51) and the lower cavity (52) being formed on the partition (21); The isolation portion (20) further includes: a first baffle (22), the first baffle (22) being arranged in the upper cavity (51), a first end of the first baffle (22) being connected to the partition (21), a second end of the first baffle (22) extending along the axial direction of the upper cavity (51) and being arranged at a distance from an inner wall of the upper cavity (51), the first baffle (22) dividing the upper cavity (51) into a plurality of first silencing chambers (511), and one end of the air intake pipe (40) extending into one of the plurality of first silencing chambers (511); The inner diameter of at least one of the plurality of first silencing chambers (511) is different from the inner diameters of the remaining first silencing chambers (511); A second baffle (23), the second baffle (23) is arranged in the lower cavity (52), a first end of the second baffle (23) is connected to the partition (21), a second end of the second baffle (23) extends along the axial direction of the lower cavity (52) and is arranged at a distance from the inner wall of the lower cavity (52), the second baffle (23) divides the lower cavity (52) into a plurality of second silencer chambers (521), and one end of the exhaust pipe (30) extends into one of the plurality of second silencer chambers (521).

2. The muffler structure according to claim 1, characterized in that: One end of the exhaust pipe (30) extends into the lower cavity (52) and passes through the partition plate (21) to communicate with the upper cavity (51).

3. The muffler structure according to claim 2, characterized in that: One end of the air intake pipe (40) extends into the upper cavity (51) and passes through the partition (21) to communicate with the lower cavity (52); the refrigerant flowing into the air intake pipe (40) flows into the lower cavity (52) and then flows into the upper cavity (51) through the partition through hole (211).

4. The muffler structure according to claim 1, characterized in that: One end of the exhaust pipe (30) extends into the lower cavity (52) and is disposed at a distance from the partition (21), and one end of the intake pipe (40) extends into the upper cavity (51) and is disposed at a distance from the partition (21).

5. The muffler structure according to claim 4, characterized in that: The distance from the end of the exhaust pipe (30) to the partition (21) is different from the distance from the end of the intake pipe (40) to the partition (21).

6. The muffler structure according to claim 1, characterized in that: There are a plurality of first baffles (22), and the plurality of first baffles (22) are arranged at intervals and enclosed with the inner wall of the upper cavity (51) to form a plurality of first silencing chambers (511).

7. The muffler structure according to claim 1, characterized in that: The inner diameter of at least one of the plurality of second silencing chambers (521) is different from the inner diameters of the remaining second silencing chambers (521).

8. The muffler structure according to claim 1, characterized in that: There are a plurality of second baffles (23), and the plurality of second baffles (23) are arranged at intervals and are arranged together with the inner wall of the lower cavity (52) to form a plurality of second silencing chambers (521).

9. The muffler structure according to claim 1, characterized in that: The housing (10) comprises: An inner shell (11) and an outer shell (12), wherein a portion between the inner shell (11) and the outer shell (12) is arranged at a distance to form a heat insulation gap.

10. A compressor, comprising a muffler structure, characterized in that: The muffler structure is the muffler structure according to any one of claims 1 to 9.

Images