Mufflers, compressors and refrigerators

Abstract

The present invention provides a silencer, a compressor and a refrigerator. The silencer includes: a silencer including a silencer body and an air intake pipe arranged on the silencer body, the silencer body including: an air intake cavity and an air outlet cavity located below the air intake cavity and connected to the air intake cavity, a plurality of partitions are arranged in the air intake cavity to divide the air intake cavity into a plurality of cavities connected in sequence along the gas flow direction; wherein, at least one cavity is connected to the outside through the air intake pipe, a part of the air intake pipe is inserted in the corresponding cavity, and the other part of the air intake pipe is located outside the silencer body; a perforated plate including a plurality of through holes is arranged in at least one cavity to divide the corresponding cavity into a plurality of sub-cavities, so as to solve the problem that the rotary compressor in the prior art has a large noise and is not suitable for being arranged in a refrigerator.

Description

Technical Field

[0001] The present invention relates to the technical field of compressor silencing, and in particular to a muffler, a compressor and a refrigerator. Background Art

[0002] The noise sources of a fully sealed rolling rotor compressor mainly include electromagnetic noise, gas dynamic noise, mechanical noise and oil dynamic noise. Among them, the suction and exhaust noise (i.e., gas dynamic noise) is the core noise source of the compressor, and the existing technology mainly relies on mufflers to reduce the suction and exhaust noise. For example, a single-cylinder small-displacement compressor generally has a layer of muffler at the upper flange, while a two-cylinder large-displacement compressor generally has a layer of muffler at the lower flange and two layers of muffler at the upper flange.

[0003] However, as compressors become faster and smaller, prolonged full-load operation will cause the compressor to vibrate violently and generate considerable noise. Therefore, rotary compressors are typically used in air conditioners and commercial refrigeration, while piston compressors are typically used in refrigerators. The suction pulsation generated during suction is one of the main sources of compressor noise. To meet the higher demands of users, rotary compressors are now being used in household refrigerators. However, as compressors become faster and smaller, their overall dimensions decrease, limiting the height between the lower flange and the bottom of the compressor housing. This makes it impossible to install an intake muffler, resulting in greater noise from the suction pulsation and, consequently, increased compressor noise. Therefore, the structure of existing rotary compressors must be modified to accommodate the noise requirements of refrigerators. Summary of the Invention

[0004] The main purpose of the present invention is to provide a muffler, a compressor and a refrigerator to solve the problem that the rotary compressor in the prior art is noisy and is not suitable for being installed in a refrigerator.

[0005] In order to achieve the above-mentioned purpose, according to a first aspect of the present invention, a silencer is provided, comprising a silencer body and an air intake pipe arranged on the silencer body, the silencer body comprising: an air intake cavity and an air outlet cavity located below the air intake cavity and connected to the air intake cavity, a plurality of partitions are arranged in the air intake cavity to divide the air intake cavity into a plurality of cavities connected in sequence along the gas flow direction; wherein, at least one cavity is connected to the outside through the air intake pipe, a part of the air intake pipe is inserted in the corresponding cavity, and the other part of the air intake pipe is located outside the silencer body; a perforated plate comprising a plurality of through holes is arranged in at least one cavity to divide the corresponding cavity into a plurality of sub-cavities.

[0006] Furthermore, the multiple cavities include a first cavity, a second cavity and a third cavity which are connected in sequence along the gas flow direction, the first cavity is used for air intake, and the third cavity is connected to the air outlet cavity; wherein, the first cavity and the third cavity are arranged at intervals along the horizontal direction, a part of the second cavity is located above the first cavity and the third cavity and is connected to the first cavity, and another part of the second cavity is located on the side of the third cavity away from the first cavity and is connected to the third cavity.

[0007] Furthermore, a perforated plate is provided in the second cavity to separate the second cavity into a first sub-cavity and a second sub-cavity that are connected to each other. The first sub-cavity is located on the side of the perforated plate close to the first cavity and is connected to the first cavity, and the second sub-cavity is located on the side of the perforated plate away from the first cavity and is connected to the third cavity.

[0008] Furthermore, the perforated plate is vertically arranged above the third cavity; the first sub-cavity includes a first cavity portion located above the first cavity and a second cavity portion located above the third cavity; the second sub-cavity includes a third cavity portion located above the third cavity and a fourth cavity portion located on the side of the third cavity away from the first cavity.

[0009] Furthermore, the first cavity portion is connected to the first cavity through a vent hole arranged on the partition above the first cavity, and the second cavity portion is connected to the second sub-cavity through a through hole on the perforated plate; the third cavity portion is connected to the first sub-cavity through a through hole on the perforated plate, and the fourth cavity portion is connected to the third cavity through a first opening arranged on the side of the third cavity away from the first cavity.

[0010] Furthermore, the volume of the first sub-cavity is greater than the volume of the first cavity, and the volume of the second sub-cavity is greater than the volume of the first sub-cavity.

[0011] Furthermore, a drainage channel is provided in the third cavity, the inlet of the drainage channel is communicated with the second cavity, and the outlet of the drainage channel is communicated with the air outlet cavity.

[0012] Furthermore, the drainage channel includes a first channel portion and a second channel portion, the first channel portion extends horizontally, and the second channel portion is located below the first channel portion and extends vertically; wherein, the first end of the first channel portion is connected to a first opening provided on a side of the third cavity away from the first cavity, the second end of the first channel portion is connected to the first end of the second channel portion, and the second end of the second channel portion is connected to a second opening provided on a side of the third cavity close to the air outlet cavity.

[0013] Furthermore, the air inlet pipe is located below the first cavity; the muffler also includes an air outlet pipe, which is connected to the air outlet cavity and is located on a side of the air outlet cavity away from the air inlet cavity.

[0014] Furthermore, the air inlet pipe is a straight pipe and extends in a direction away from the first cavity; and / or the air outlet pipe includes a first tube body and a second tube body that are interconnected, the first tube body extends in a direction away from the air outlet cavity, and the extension direction of the first tube body and the extension direction of the second tube body are set at a predetermined angle.

[0015] According to a second aspect of the present invention, a compressor is provided, which includes a compressor housing and an intake muffler arranged in the compressor housing, and the intake muffler is the above-mentioned muffler; the compressor housing is also provided with a pump body assembly, the pump body assembly includes a motor and an upper flange, a cylinder and a lower flange sequentially arranged on the rotating shaft of the motor in a vertical downward direction; wherein, the intake muffler is arranged on one side of the pump body assembly, the silencer body of the intake muffler is connected to the keel frame of the stator of the motor, the air inlet of the intake muffler is connected to the air inlet pipeline on the compressor housing, and the air outlet of the intake muffler is connected to the air inlet channel of the cylinder.

[0016] Furthermore, the silencer body is connected to the keel frame via a connecting piece; wherein, the first end of the connecting piece is plug-connected to the silencer body; and / or the second end of the connecting piece is plug-connected to the keel frame.

[0017] Furthermore, the air inlet of the suction muffler is connected to the air inlet pipeline on the compressor housing via a hose; and / or a portion of the air outlet pipe of the suction muffler is inserted into the air inlet passage of the cylinder.

[0018] Furthermore, the pump body assembly is connected to the bottom of the compressor housing through multiple buffer support assemblies, each buffer support assembly includes: a first guide column, which is arranged at the bottom of the compressor housing; a second guide column, which is arranged below the pump body assembly; and an elastic buffer member, one end of the elastic buffer member is sleeved on the first guide column, and the other end of the elastic buffer member is sleeved on the second guide column.

[0019] According to a third aspect of the present invention, a refrigerator is provided, comprising the above-mentioned compressor.

[0020] Applying the technical solution of the present invention, the silencer of the present invention includes a silencer body and an air intake pipe arranged on the silencer body, the silencer body includes: an air intake cavity and an air outlet cavity located below the air intake cavity and connected to the air intake cavity, a plurality of partitions are arranged in the air intake cavity to divide the air intake cavity into a plurality of cavities connected in sequence along the gas flow direction; wherein, at least one cavity is connected to the outside through the air intake pipe, a part of the air intake pipe is inserted in the corresponding cavity, and the other part of the air intake pipe is located outside the silencer body; a perforated plate including a plurality of through holes is provided in at least one cavity to divide the corresponding cavity into a plurality of sub-cavities. In this way, in the silencer of the present invention, the air intake pipe and the cavity in which the air intake pipe is inserted together form a first-stage silencer structure for preliminarily reducing the noise of the airflow entering the silencer. Then the cavity in which the perforated plate is provided forms a second-stage silencer structure for secondary reducing the noise of the airflow entering the silencer, thereby reducing the noise of the airflow passing through the silencer of the present invention. When the silencer of the present invention is applied to a rotary compressor, it can reduce the suction noise of the rotary compressor to reduce the overall noise of the rotary compressor, so that the noise of the rotary compressor can meet the noise requirements of the refrigerator, thereby solving the problem in the prior art that the rotary compressor has a large noise and is not suitable for being installed in a refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 An exploded view of an embodiment of a muffler according to the present invention is shown;

[0023] Figure 2 Shown Figure 1 a cross-sectional view of the muffler shown;

[0024] Figure 3 Shown with Figure 1 A cross-sectional view of the compressor of the muffler shown in one direction;

[0025] Figure 4 Shown with Figure 1 A cross-sectional view of the compressor of the muffler shown in another direction;

[0026] Figure 5 Shown Figure 3 The diagram shows the connection between the stator frame and the muffler of the motor in the compressor;

[0027] Figure 6 Shown Figure 5 The front view of the connecting parts of the keel frame and the muffler is shown;

[0028] Figure 7 Shown Figure 3 The compressor is shown in an enlarged view of a portion at A.

[0029] The above drawings include the following reference numerals:

[0030] 1. Air inlet cavity; 11. First cavity; 12. Second cavity; 121. First sub-cavity; 122. Second sub-cavity; 13. Third cavity;

[0031] 2. Air outlet cavity; 3. Partition plate; 31. Ventilation hole; 32. First horizontal plate; 33. First vertical plate; 34. Second vertical plate; 4. Perforated plate; 41. Through hole; 5. Drainage channel; 51. First channel portion; 52. Second channel portion;

[0032] 100, suction muffler; 110, muffler body; 111, main housing; 112, cover plate; 113, first protrusion; 120, air inlet pipe; 130, air outlet pipe; 131, first tube body; 132, second tube body;

[0033] 200, compressor housing; 210, air inlet pipe; 220, air outlet pipe; 300, motor; 310, rotating shaft; 320, stator; 330, keel frame; 400, upper flange; 500, cylinder; 510, air inlet channel; 600, lower flange; 700, connector; 710, first slot; 720, second protrusion; 800, buffer support assembly; 810, first guide column; 820, second guide column; 830, elastic buffer; 831, rubber pad; 832, compression spring; 900, exhaust muffler. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this 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] like Figures 1 to 5 As shown, the present invention provides a silencer, including a silencer body 110 and an air intake pipe 120 arranged on the silencer body 110, the silencer body 110 includes: an air intake chamber 1 and an air outlet chamber 2 located below the air intake chamber 1 and connected to the air intake chamber 1, a plurality of partitions 3 are arranged in the air intake chamber 1 to divide the air intake chamber 1 into a plurality of cavities connected in sequence along the gas flow direction; wherein, at least one cavity is connected to the outside through the air intake pipe 120, a part of the air intake pipe 120 is inserted in the corresponding cavity, and the other part of the air intake pipe 120 is located outside the silencer body 110; a perforated plate 4 including a plurality of through holes 41 is provided in at least one cavity to separate the corresponding cavity into a plurality of sub-cavities.

[0036] In the silencer of the present invention, the air intake pipe 120 and the cavity in which the air intake pipe 120 is inserted together form a first-stage silencer structure for preliminarily reducing the noise of the airflow entering the silencer. Then the cavity in which the perforated plate 4 is provided forms a second-stage silencer structure for secondary reducing the noise of the airflow entering the silencer, thereby reducing the noise of the airflow passing through the silencer of the present invention. When the silencer of the present invention is applied to a rotary compressor, it can reduce the suction noise of the rotary compressor to reduce the overall noise of the rotary compressor, so that the noise of the rotary compressor can meet the noise requirements of the refrigerator, thereby solving the problem in the prior art that the rotary compressor has a large noise and is not suitable for being set in a refrigerator.

[0037] like Figure 1 and Figure 2 As shown, multiple cavities include a first cavity 11, a second cavity 12 and a third cavity 13 which are connected in sequence along the gas flow direction. The first cavity 11 is used for air intake, and the third cavity 13 is connected to the air outlet cavity 2; wherein, the first cavity 11 and the third cavity 13 are arranged at intervals along the horizontal direction, a part of the second cavity 12 is located above the first cavity 11 and the third cavity 13 and is connected to the first cavity 11, and the other part of the second cavity 12 is located on the side of the third cavity 13 away from the first cavity 11 and is connected to the third cavity 13.

[0038] like Figures 1 to 3 as well as Figure 4 and Figure 5 As shown, a perforated plate 4 is provided in the second cavity 12 to separate the second cavity 12 into a first sub-cavity 121 and a second sub-cavity 122 that are connected to each other. The first sub-cavity 121 is located on the side of the perforated plate 4 close to the first cavity 11 and is connected to the first cavity 11, and the second sub-cavity 122 is located on the side of the perforated plate 4 away from the first cavity 11 and is connected to the third cavity 13.

[0039] like Figure 1 and Figure 2 As shown, the perforated plate 4 is vertically arranged above the third cavity 13; the first sub-cavity 121 includes a first cavity portion located above the first cavity 11 and a second cavity portion located above the third cavity 13; the second sub-cavity 122 includes a third cavity portion located above the third cavity 13 and a fourth cavity portion located on the side of the third cavity 13 away from the first cavity 11.

[0040] Specifically, the first cavity portion is connected to the first cavity 11 through the vent hole 31 arranged on the partition 3 above the first cavity 11, and the second cavity portion is connected to the second sub-cavity 122 through the through hole 41 on the perforated plate 4; the third cavity portion is connected to the first sub-cavity 121 through the through hole 41 on the perforated plate 4, and the fourth cavity portion is connected to the third cavity 13 through a first opening arranged on the side of the third cavity 13 away from the first cavity 11.

[0041] Specifically, the volume of the first sub-cavity 121 is greater than the volume of the first cavity 11 , and the volume of the second sub-cavity 122 is greater than the volume of the first sub-cavity 121 .

[0042] like Figure 1 and Figure 2 As shown, a drainage channel 5 is provided in the third cavity 13. The inlet of the drainage channel 5 is connected to the second cavity 12, and the outlet of the drainage channel 5 is connected to the air outlet cavity 2. In this way, by providing the drainage channel 5 to guide the air flow in the muffler, the suction pressure pulsation of the compressor is reduced, the suction noise of the compressor is reduced, and the gas is prevented from passing through the muffler in a disorderly manner, so that it can enter the cylinder from the muffler in an orderly manner.

[0043] Muffler such as Figure 1 and Figure 2 As shown, the drainage channel 5 includes a first channel portion 51 and a second channel portion 52, the first channel portion 51 extends horizontally, and the second channel portion 52 is located below the first channel portion 51 and extends vertically; wherein, the first end of the first channel portion 51 is connected to a first opening arranged on a side of the third cavity 13 away from the first cavity 11, the second end of the first channel portion 51 is connected to the first end of the second channel portion 52, and the second end of the second channel portion 52 is connected to a second opening arranged on a side of the third cavity 13 close to the air outlet cavity 2.

[0044] Specifically, the center line of the second channel portion 52 of the drainage channel 5 and the center line of the first tube body 131 of the air outlet pipe 130 both extend vertically and are spaced apart from each other, that is, the second opening of the third cavity 13 on the side close to the air outlet cavity 2 and the projections of the air outlet of the air outlet cavity 2 on the same horizontal plane are staggered with each other to form a third-level silencer structure, which further reduces the noise of the airflow entering the silencer.

[0045] like Figures 1 to 3 as well as Figure 4 As shown, the air inlet pipe 120 is located below the first cavity 11 ; the muffler further includes an air outlet pipe 130 , which is communicated with the air outlet cavity 2 and is located on a side of the air outlet cavity 2 away from the air inlet cavity 1 .

[0046] Specifically, the air inlet pipe 120 is a straight pipe and extends in a direction away from the first cavity 11; and / or the air outlet pipe 130 includes a first tube body 131 and a second tube body 132 that are interconnected, the first tube body 131 extends in a direction away from the air outlet cavity 2, and the extension direction of the first tube body 131 and the extension direction of the second tube body 132 are set at a predetermined angle.

[0047] Among them, the air inlet pipe 120 is a straight pipe extending vertically, the first tube body 131 of the air outlet pipe 130 is also a straight tube extending vertically, the second tube body 132 of the air outlet pipe 130 extends horizontally and the cross-sectional area of ​​the second tube body 132 gradually increases in the direction away from the first tube body 131, so as to be connected to the cylinder of the compressor.

[0048] like Figure 1 and Figure 2 As shown, the silencer body 110 of the present invention includes a main shell 111 and a cover plate 112 provided on one side of the main shell 111 close to the pump body assembly to jointly enclose an air inlet cavity 1 and an air outlet cavity 2. A first protrusion 113 is provided on the outer side of the cover plate 112 to connect with the connector 700 through the first protrusion 113, wherein the air inlet cavity 1 and the air outlet cavity 2 are separated by an intermediate plate, and the second opening is provided on the intermediate plate; a plurality of partitions 3 are provided in the silencer body 110, and the plurality of partitions 3 include a first transverse plate 3 2 and a first vertical plate 33 and a second vertical plate 34 spaced apart below the first horizontal plate 32; wherein, the first horizontal plate 32, the first vertical plate 33 and the main shell 111 together form the first cavity 11, and the vent 31 is provided on the first horizontal plate 32; the first horizontal plate 32, the second vertical plate 34 and the main shell 111 together form the second cavity 12; the first horizontal plate 32, the first vertical plate 33, the second vertical plate 34 and the main shell 111 together form the third cavity 13, and the first opening is provided on the second vertical plate 34.

[0049] Specifically, the third cavity 13 is located directly above the air outlet cavity 2 and the width of the third cavity 13 is equal to the width of the air outlet cavity 2; the second cavity portion of the first sub-cavity 121 and the third cavity portion of the second sub-cavity 122 are located directly above the third cavity 13 and the total width of the second cavity portion of the first sub-cavity 121 and the third cavity portion of the second sub-cavity 122 is equal to the width of the third cavity 13; the fourth cavity portions of the first cavity 11 and the second sub-cavity 122 are respectively located on opposite sides of the third cavity 13, so that the air inlet pipe 120 can be arranged below the first cavity 11; the first cavity portion of the first sub-cavity 121 is located directly above the first cavity 11 and the width of the first cavity portion of the first sub-cavity 121 is equal to the width of the first cavity 11.

[0050] like Figures 3 to 7As shown, the present invention provides a compressor, which includes a compressor housing 200 and an intake muffler 100 arranged in the compressor housing 200, and the intake muffler 100 is the above-mentioned muffler; the compressor housing 200 is also provided with a pump body assembly, the pump body assembly includes a motor 300 and an upper flange 400, a cylinder 500 and a lower flange 600 sequentially arranged on the rotating shaft 310 of the motor 300 in a vertical downward direction; wherein, the intake muffler 100 is arranged on one side of the pump body assembly, the silencer body 110 of the intake muffler 100 is connected to the keel frame 330 of the stator 320 of the motor 300, the air inlet of the intake muffler 100 is connected to the air intake pipe 210 on the compressor housing 200, and the air outlet of the intake muffler 100 is connected to the air intake channel 510 of the cylinder 500.

[0051] like Figures 3 to 6 As shown, the muffler body 110 is connected to the keel frame 330 via a connector 700. The first end of the connector 700 is plugged into the muffler body 110, and / or the second end of the connector 700 is plugged into the keel frame 330. This allows for easy assembly and disassembly of the muffler body 110 and the keel frame 330 without requiring any components other than the connector 700.

[0052] Among them, a first slot 710 is provided on the side of the connecting member 700 close to the silencer body 110, and a first protrusion 113 is provided on the silencer body 110 for plug-in fit and interference fit with the first slot 710, so that the connecting member 700 is connected to the silencer body 110 through the plug-in fit and interference fit of the first slot 710 and the first protrusion 113; a second protrusion 720 is provided on the side of the connecting member 700 close to the keel frame 330, and a second slot is provided on the keel frame 330 for plug-in fit and interference fit with the second protrusion 720, so that the connecting member 700 is connected to the keel frame 330 through the plug-in fit and interference fit of the second protrusion 720.

[0053] Specifically, the air inlet of the suction muffler 100 is connected to the air intake pipe 210 on the compressor housing 200 through a hose to better reduce the suction pressure pulsation of the compressor, reduce the suction noise and vibration of the compressor, and effectively improve the overall noise level and vibration level of the compressor.

[0054] Specifically, a portion of the outlet pipe 130 of the suction muffler 100 is inserted into the intake passage 510 of the cylinder 500. This prevents the high-pressure gas discharged from the cylinder 500 from directly entering the compressor housing 200 and exchanging heat, thereby ensuring good cooling capacity of the compressor. Furthermore, the outlet pipe 130 is directly welded to the intake passage 510 to ensure a tight and reliable connection.

[0055] like Figure 3 and Figure 7 As shown, the pump body assembly is connected to the bottom of the compressor housing 200 through multiple buffer support assemblies 800, and each buffer support assembly 800 includes: a first guide column 810, which is arranged at the bottom of the compressor housing 200; a second guide column 820, which is arranged below the pump body assembly (specifically below the upper flange 400); and an elastic buffer member 830, one end of the elastic buffer member 830 is sleeved on the first guide column 810, and the other end of the elastic buffer member 830 is sleeved on the second guide column 820.

[0056] Specifically, the elastic buffer 830 includes a rubber pad 831 and a compression spring 832 .

[0057] In this way, the present invention can buffer the movement of the pump body assembly in the direction close to or away from the bottom of the compressor housing 200 by setting multiple buffer support assemblies 800, so as to avoid the transmission of vibration between the pump body assembly and the compressor housing 200, and reduce the noise generated by the pump body assembly during vibration.

[0058] like Figure 3 As shown, the pump body assembly also includes an exhaust muffler 900, which is arranged on the side of the upper flange 400 away from the cylinder 500 and is connected to the exhaust port of the cylinder 500. The gas compressed by the cylinder 500 is discharged into the compressor housing 200 after the exhaust noise is reduced by the exhaust muffler 900. After passing through the inner cavity of the compressor housing 200, it reaches the outlet pipe 220 on the compressor housing 200 to be discharged to the outside of the compressor housing 200 through the outlet pipe 220.

[0059] The present invention also provides a refrigerator comprising the above-mentioned compressor.

[0060] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0061] The silencer of the present invention includes a silencer body 110 and an air intake pipe 120 arranged on the silencer body 110. The silencer body 110 includes: an air intake chamber 1 and an air outlet chamber 2 located below the air intake chamber 1 and connected to the air intake chamber 1. A plurality of partitions 3 are arranged in the air intake chamber 1 to divide the air intake chamber 1 into a plurality of cavities connected in sequence along the gas flow direction; wherein, at least one cavity is connected to the outside through the air intake pipe 120, a part of the air intake pipe 120 is inserted in the corresponding cavity, and the other part of the air intake pipe 120 is located outside the silencer body 110; a perforated plate 4 including a plurality of through holes 41 is arranged in at least one cavity to separate the corresponding cavity into a plurality of sub-cavities. In this way, in the silencer of the present invention, the air intake pipe 120 and the cavity in which the air intake pipe 120 is inserted together form a first-stage silencer structure for preliminarily reducing the noise of the airflow entering the silencer. Then the cavity in which the perforated plate 4 is provided forms a second-stage silencer structure for secondary reduction of the noise of the airflow entering the silencer, thereby reducing the noise of the airflow passing through the silencer of the present invention. When the silencer of the present invention is applied to a rotary compressor, it can reduce the suction noise of the rotary compressor to reduce the overall noise of the rotary compressor, so that the noise of the rotary compressor can meet the noise requirements of the refrigerator, thereby solving the problem in the prior art that the noise of the rotary compressor is too loud and is not suitable for being set in a refrigerator.

[0062] 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, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0063] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0064] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0065] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. 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 figures. For example, if the device in the 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.

[0066] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0067] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A muffler, characterized in that: It comprises a muffler body (110) and an air intake pipe (120) arranged on the muffler body (110), wherein the muffler body (110) comprises: An air inlet cavity (1) and an air outlet cavity (2) located below the air inlet cavity (1) and connected to the air inlet cavity (1), wherein a plurality of partitions (3) are provided in the air inlet cavity (1) to divide the air inlet cavity (1) into a plurality of cavities connected in sequence along a gas flow direction; At least one cavity is connected to the outside through the air intake pipe (120), a portion of the air intake pipe (120) is inserted into the corresponding cavity, and another portion of the air intake pipe (120) is located outside the muffler body (110); a perforated plate (4) including a plurality of through holes (41) is provided in at least one of the cavities to separate the corresponding cavity into a plurality of sub-cavities; The multiple cavities include a first cavity (11), a second cavity (12), and a third cavity (13) that are sequentially connected along the gas flow direction, the first cavity (11) being connected to the outside via the gas inlet pipe (120), and the third cavity (13) being connected to the gas outlet cavity (2); The first cavity (11) and the third cavity (13) are arranged in a transversely spaced relationship, a portion of the second cavity (12) is located above the first cavity (11) and the third cavity (13) and is in communication with the first cavity (11), and another portion of the second cavity (12) is located on a side of the third cavity (13) away from the first cavity (11) and is in communication with the third cavity (13); The perforated plate (4) is provided in the second cavity (12) to divide the second cavity (12) into a first sub-cavity (121) and a second sub-cavity (122) which are connected to each other, wherein the first sub-cavity (121) is located on a side of the perforated plate (4) close to the first cavity (11) and is connected to the first cavity (11), and the second sub-cavity (122) is located on a side of the perforated plate (4) away from the first cavity (11) and is connected to the third cavity (13); The perforated plate (4) is vertically arranged above the third cavity (13); the first sub-cavity (121) includes a first cavity portion located above the first cavity (11) and a second cavity portion located above the third cavity (13); the second sub-cavity (122) includes a third cavity portion located above the third cavity (13) and a fourth cavity portion located on a side of the third cavity (13) away from the first cavity (11).

2. The muffler according to claim 1, characterized in that The first cavity portion is in communication with the first cavity (11) via a vent hole (31) provided on a partition (3) above the first cavity (11), and the second cavity portion is in communication with the second sub-cavity (122) via a through hole (41) on the perforated plate (4); The third cavity portion is in communication with the first sub-cavity (121) via a through hole (41) on the perforated plate (4), and the fourth cavity portion is in communication with the third cavity (13) via a first opening provided on a side of the third cavity (13) away from the first cavity (11).

3. The muffler according to claim 1, wherein: The volume of the first sub-cavity (121) is greater than the volume of the first cavity (11), and the volume of the second sub-cavity (122) is greater than the volume of the first sub-cavity (121).

4. The muffler according to claim 1, wherein: A drainage channel (5) is provided in the third cavity (13); the inlet of the drainage channel (5) is communicated with the second cavity (12); and the outlet of the drainage channel (5) is communicated with the air outlet cavity (2).

5. The muffler according to claim 4, characterized in that The drainage channel (5) comprises a first channel portion (51) and a second channel portion (52), wherein the first channel portion (51) extends in a transverse direction, and the second channel portion (52) is located below the first channel portion (51) and extends in a vertical direction; The first end of the first channel portion (51) is connected to a first opening of the third cavity (13) on a side away from the first cavity (11), the second end of the first channel portion (51) is connected to a first end of the second channel portion (52), and the second end of the second channel portion (52) is connected to a second opening of the third cavity (13) on a side close to the air outlet cavity (2).

6. The muffler according to claim 1, characterized in that The air inlet pipe (120) is located below the first cavity (11); the muffler further comprises an air outlet pipe (130), the air outlet pipe (130) is communicated with the air outlet cavity (2) and is located on a side of the air outlet cavity (2) away from the air inlet cavity (1).

7. The muffler according to claim 6, characterized in that The air inlet pipe (120) is a straight pipe and the air inlet pipe (120) extends in a direction away from the first cavity (11); and / or The air outlet pipe (130) comprises a first tube body (131) and a second tube body (132) which are connected to each other, the first tube body (131) extending in a direction away from the air outlet cavity (2), and the extending direction of the first tube body (131) and the extending direction of the second tube body (132) forming a predetermined angle.

8. A compressor, characterized in that: The compressor comprises a compressor housing (200) and an air suction muffler (100) arranged in the compressor housing (200), wherein the air suction muffler (100) is the muffler according to any one of claims 1 to 7; the compressor housing (200) is further provided with a pump body assembly, wherein the pump body assembly comprises a motor (300) and an upper flange (400), a cylinder (500) and a lower flange (400) which are sequentially sleeved on the rotating shaft (310) of the motor (300) in a vertical downward direction. Flange (600); wherein the suction muffler (100) is arranged on one side of the pump body assembly, the muffler body (110) of the suction muffler (100) is connected to the keel frame (330) of the stator (320) of the motor (300), the air inlet of the suction muffler (100) is connected to the air inlet pipeline on the compressor housing (200), and the air outlet of the suction muffler (100) is connected to the air inlet channel (510) of the cylinder (500).

9. The compressor according to claim 8, characterized in that The muffler body (110) is connected to the keel frame (330) via a connecting piece (700); wherein, The first end of the connecting member (700) is plug-connected to the muffler body (110); and / or The second end of the connecting piece (700) is plug-connected to the keel frame (330).

10. The compressor according to claim 8, characterized in that The air inlet of the suction muffler (100) is connected to the air inlet pipeline on the compressor housing (200) via a hose; and / or A portion of the air outlet pipe (130) of the air intake muffler (100) is inserted into the air intake passage (510) of the cylinder (500).

11. The compressor according to claim 8, characterized in that The pump body assembly and the bottom of the compressor housing (200) are connected via a plurality of buffer support assemblies (800), each of the buffer support assemblies (800) comprising: A first guide column (810) is provided at the bottom of the compressor housing (200); A second guide column (820) is arranged below the pump body assembly; An elastic buffer (830), one end of the elastic buffer (830) is sleeved on the first guide column (810), and the other end of the elastic buffer (830) is sleeved on the second guide column (820).

12. A refrigerator, characterized in that: The refrigerator includes the compressor according to any one of claims 8 to 11.

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