Silencer, compressor and refrigeration device

Abstract

A silencer, a compressor and a refrigeration device. The silencer (10) comprises a housing (100) and an air suction member (200). A silencing cavity (110) is provided in the housing (100), the housing (100) being provided with an inlet (120) leading to the silencing cavity (110); the air suction member (200) is connected to the housing (100); one end of the air suction member (200) is provided with a plurality of air inlets (211), while the other end thereof is provided with an air outlet (214), air inlet channels (212) being formed in the directions from each air inlet (211) to the air outlet (214); the multiple air inlet channels (212) each lead to the air outlet (214), the air outlet (214) leading to the inlet (120).

Description

Mufflers, compressors and refrigeration equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202410274262.0 filed on March 11, 2024, entitled “Silencer, compressor and refrigeration equipment”. The entire contents of the above patent application are incorporated into this application by reference. Technical Field

[0003] The present application relates to the technical field of compressors, and in particular to a muffler, a compressor and a refrigeration device. Background Art

[0004] Refrigerators are essential household appliances in daily life, and consumers are increasingly demanding higher performance from them. Besides their crucial freezing capacity, refrigerator comfort is also a key performance indicator. Noise, as a key comfort parameter, has attracted considerable attention. Compressor noise is the primary target for noise reduction in refrigerators, particularly the aerodynamic noise generated by compressor operation. Related technologies employ a suction muffler on the suction side of the compressor. This horn-shaped air inlet structure serves only as a guide and does not effectively reduce the aerodynamic noise of the refrigerant flowing on the suction side. Summary of the Invention

[0005] The present application aims to at least partially solve one of the technical problems existing in the prior art. To this end, the present application proposes a muffler, and a compressor and a refrigeration device including the muffler.

[0006] The silencer according to the first aspect of the present application is applied to a compressor and includes: a shell and an air suction piece, a silencer cavity is provided inside the shell, and the shell is provided with an inlet connected to the silencer cavity; the air suction piece is connected to the shell, and one end of the air suction piece is provided with multiple air inlets, and the other end is provided with an air outlet, each of the air inlets forms an air inlet channel toward the air outlet, and the multiple air inlet channels are respectively connected to the air outlet, and the air outlet is connected to the inlet.

[0007] According to some embodiments of the present application, an air intake portion is provided at one end of the air suction member, and an air outlet portion is provided at the other end. The cross-sectional area of ​​the air intake portion is larger than the cross-sectional area of ​​the air outlet portion. The air intake portion is provided with a mating surface adapted to the inner wall of the outer shell of the compressor. Multiple air inlets are distributed on the mating surface, and multiple air intake channels are formed in the air intake portion.

[0008] According to some embodiments of the present application, the cross-sectional area of ​​each of the air inlet channels is 1 mm 2 Up to 10mm 2 .

[0009] According to some embodiments of the present application, the cross-sectional shape of at least a portion of the air intake passage is a regular polygon.

[0010] According to some embodiments of the present application, the air intake portion is cylindrical, the mating surface is inclined relative to the axial direction of the air intake portion, the axial direction of the air intake channel is the same as the axial direction of the air intake portion, and along the inclined direction of the mating surface, the length distribution of multiple air intake channels shows a gradual decrease or increase.

[0011] According to some embodiments of the present application, the length of each of the air inlet channels is greater than or equal to 3 mm.

[0012] According to some embodiments of the present application, the air suction member is made of a soft rubber material, and the air inlet, the air inlet channel, the air outlet and the air suction member are an integrally formed structure.

[0013] According to some embodiments of the present application, the silencer further includes a clamp, a sleeve is provided at one end of the air suction piece away from the air inlet, the shell is provided with an air intake pipe connected to the inlet, the sleeve is sleeved on the air intake pipe, and the clamp is sleeved on the outer peripheral wall of the sleeve to fix the air suction piece.

[0014] According to some embodiments of the present application, an annular groove is provided on the outer peripheral wall of the sleeve, and the clamp is clamped in the annular groove.

[0015] According to some embodiments of the present application, the inner peripheral wall of the sleeve is provided with a protrusion, and the outer peripheral wall of the air inlet pipe is provided with a groove, and the protrusion is positioned and matched with the groove.

[0016] According to the second aspect embodiment of the present application, the compressor includes: a shell, a compression mechanism and the muffler described in the first aspect embodiment, the shell is provided with a through hole; the compression mechanism is installed in the shell; the muffler is arranged in the shell, the air inlet is connected to the through hole, and the shell is provided with an outlet connected to the compression mechanism.

[0017] The refrigeration equipment according to the third embodiment of the present application includes the compressor described in the second embodiment.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] FIG1 is an overall schematic diagram of a muffler according to an embodiment of the present application;

[0021] FIG2 is a schematic cross-sectional view taken along the AA direction in FIG1 ;

[0022] FIG3 is a schematic diagram of the exploded structure of the air-intake member and the housing according to an embodiment of the present application;

[0023] FIG4 is a schematic structural diagram of an air-intake member according to an embodiment of the present application;

[0024] FIG5 is an enlarged schematic diagram of point B in FIG2 ;

[0025] FIG6 is a schematic cross-sectional view of an air getter according to an embodiment of the present application.

[0026] Figure Number:

[0027] Muffler 10;

[0028] Housing 100; muffler chamber 110; inlet 120; connecting portion 130; air inlet pipe 140; groove 141;

[0029] Air suction member 200; air inlet portion 210; air inlet port 211; air inlet channel 212; mating surface 213; air outlet port 214; air outlet portion 220; sleeve 230; annular groove 231; protrusion 232;

[0030] Clamp 300; operating portion 310. Modes for Carrying Out the Invention

[0031] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0032] In the description of this application, it should be understood that descriptions involving orientation, such as up, down, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0033] In the description of this application, if there is a description of first or second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0035] 1 to 6 , a silencer 10 according to an embodiment of the present application will be described in detail below in conjunction with the accompanying drawings. The silencer 10 is applicable to compressors, especially reciprocating compressors. The reciprocating compressor is used as an example to illustrate the silencer 10.

[0036] 1 and 2 , the silencer 10 of the embodiment of the present application includes a shell 100 and an air suction member 200. A silencer chamber 110 is provided inside the shell 100. The shell 100 is provided with an inlet 120 and an outlet (not shown in the drawings). The inlet 120 and the outlet are respectively connected to the silencer chamber 110. The air suction member 200 is provided with an air inlet 211 and an air outlet 214. The air inlet 211 and the air outlet 214 are connected, wherein the air outlet 214 of the air suction member 200 is connected to the inlet 120 of the shell 100, and the outlet of the shell 100 is used to connect to the compression mechanism inside the compressor. When the silencer 10 is applied to the compressor, the gaseous refrigerant enters the air suction member 200 through the air inlet 211, flows through the air suction member 200 and enters the silencer chamber 110 through the inlet 120. The silencer chamber 110 has the function of silencing and reducing noise. After passing through the silencer 10, the gas enters the compression mechanism from the outlet for compression.

[0037] As shown in Figure 1, the inlet 120 is provided on the left side of the housing 100. A connection portion 130 is provided at the top of the housing 100. The outlet is provided on the connection portion 130. The connection portion 130 is used to connect to the cylinder head of the compression mechanism. After passing through the muffler 10, the refrigerant is discharged from the outlet and enters the cylinder head. The air intake member 200 is connected to the inlet 120 and is located on the left side of the housing 100. The muffler 10 is assembled in the compressor. The air inlet 211 is connected to the through hole of the compressor housing. The housing is provided with a pipeline connected to the through hole. The refrigerant is transported to the muffler 10 through the pipeline.

[0038] As shown in Figure 2, in the embodiment, a plurality of air inlets 211 are provided at one end of the air suction member 200, and an air outlet 214 is provided at the other end. The plurality of air inlets 211 are spaced apart and distributed on the end surface of the air suction member 200. Each air inlet 211 is formed with an air inlet channel 212 toward the air outlet 214. All the air inlet channels 212 are extended toward the air outlet 214. One end of each air inlet channel 212 away from the air inlet 211 is connected to the air outlet 214. The refrigerant enters the air inlet channel from the air inlet 211. 212, and flows along the air inlet channel 212 to the air outlet 214, which plays a guiding role on the refrigerant airflow. The refrigerant is guided through multiple air inlet channels 212, and the flow rate of the airflow is slowed down, which is beneficial to reducing the turbulence of the airflow, making the flow rate more stable, and helping to improve the air intake efficiency; the aerodynamic noise generated during the air intake process, since each air inlet channel 212 has a certain length, the sound waves propagate along the air inlet channel 212, which can weaken the propagation energy of the sound waves, reduce the noise, and thus reduce the aerodynamic noise generated by the refrigerant flow.

[0039] It should be pointed out that in the related art, there are usually two types of air inlet structures of the muffler 10: one is a trumpet-type structure that is directly integrally formed with the muffler 10; the other is a split trumpet-type structure, which needs to be assembled with the muffler 10. The above-mentioned air inlet structure is a single-channel structure, and the channel is trumpet-shaped. Although it has a certain flow-guiding effect, it has no noise reduction effect and cannot improve the aerodynamic noise of the refrigerant flow on the suction side.

[0040] The silencer 10 of the embodiment of the present application is provided with an air suction member 200 at the inlet 120. Compared with the horn-type structure in the related art, the air suction member 200 guides the refrigerant through multiple independent air inlet channels 212. Without affecting the flow rate, the turbulence of the air flow can be reduced, and the sound waves propagate in the air inlet channels 212, which can consume the energy of the sound waves and reduce the noise, thereby improving the aerodynamic noise of the refrigerant flow on the suction side. Moreover, after the refrigerant airflow comes out of the air suction member 200, it will enter the silencer chamber 110. The silencer chamber 110 can further reduce the noise, thereby greatly reducing the aerodynamic noise of the compressor, and can achieve noise reduction from the source, meet the compressor's demand for quiet operation, and ensure the overall performance of the compressor.

[0041] It is understood that the number of air inlets 211 is consistent with the number of air inlet channels 212. The number of air inlet channels 212 can be specifically set according to the size of the air intake member 200. For example, in the embodiment shown in FIG1 , one end of the air intake member 200 is roughly cylindrical, and the number of air inlet channels 212 exceeds 30, meeting the air intake requirements of the compressor. All air inlet channels 212 extend axially along the air intake member 200, each air inlet channel 212 has a consistent air intake direction, and adjacent air inlet channels 212 are spaced apart. Of course, if the cross-sectional dimensions of the air inlet channels 212 remain unchanged, the larger the diameter of the air intake member 200, the more air inlet channels 212 can be arranged therein, and the higher the air intake efficiency.

[0042] In some embodiments, the air inlet channel 212 is not limited to a straight channel and can also be configured as a curved channel. For example, the air inlet channel 212 can have one or more curved sections. The bending angle can be adaptively adjusted according to the shape of the air intake member 200, allowing for the arrangement of more curved air inlet channels 212 within the air intake member 200. Specifically, the air inlet channel 212 can be bent to form an L-shaped, wavy, or other channel structure. It will be appreciated that, compared to a straight air inlet channel 212, a curved air inlet channel 212 has a longer air intake path, which is more conducive to consuming sound wave energy and achieving a better noise reduction effect.

[0043] As shown in Figures 1, 2, and 3, the air intake member 200 is provided with an air inlet 210 at one end and an air outlet 220 at the other end. The air inlet 210 and the air outlet 220 are generally cylindrical. The cross-sectional area of ​​the air inlet 210 is larger than that of the air outlet 220, which provides sufficient space within the air inlet 210 for arranging the air inlet channel 212, making the structural design more reasonable. It can be understood that the larger the diameter of the air inlet 210, the more air inlet channels 212 can be arranged therein, and the higher the air intake efficiency. The air inlet 210 and the air outlet 220 are connected by a gradually converging structure. Multiple air inlets 211 are distributed on the end surface of the air inlet 210, multiple air inlet channels 212 are formed within the air inlet 210, and an air outlet 214 is formed in the air outlet 220. The air outlet 220 is used to connect to the inlet 120 of the housing 100.

[0044] It should be noted that in this embodiment, the cross-sectional area of ​​the air inlet portion 210 is evenly distributed, enabling a uniform radial dimension of the air inlet passage 212 and ensuring a stable intake flow rate. In some embodiments, the cross-sectional area of ​​the air inlet portion 210 can also be configured to gradually decrease from the air inlet 211 toward the air outlet 214. Furthermore, the shape of the air inlet portion 210 is not limited to a cylindrical shape; it can also be a square, a regular hexagon, or another regular polygon.

[0045] 3 and 4 , the embodiment of the present application has a split structure for the air suction member 200 and the shell 100. The air suction member 200 is a separate component, so that the air suction member 200 can be processed and formed separately, and can be made of a material different from that of the shell 100. Specifically, the air suction member 200 of the embodiment is made of a soft rubber material, such as rubber, silicone, etc. The air suction member 200 can also be understood as an air suction rubber sleeve structure. The air inlet 211, the air inlet channel 212, the air outlet 214 and the air suction member 200 are an integrally formed structure. The air suction member 200 can be processed and formed by injection molding or other manufacturing processes. The processing is easy to achieve, which reduces the components of the muffler 10 and simplifies the assembly process of the muffler 10, thereby improving the assembly efficiency of the product and reducing the production cost of the product.

[0046] It should be noted that the air intake rubber sleeve structure is made of soft rubber material and has a certain elasticity. It will deform when subjected to external force. Therefore, when the compressor is running, the air intake rubber sleeve structure can maintain a position close to the inner wall of the compressor, ensuring the air tightness between the air intake component 200 and the outer shell, and reducing the occurrence of refrigerant leakage.

[0047] 4 and 5 , the air inlet portion 210 is provided with a mating surface 213 that mates with the inner wall surface of the compressor housing. After the muffler 10 is fully assembled in the compressor, the mating surface 213 of the air inlet portion 210 abuts against the inner wall surface of the housing and fits tightly. This mating surface 213 ensures airtightness at the assembly between the air intake member 200 and the housing, effectively preventing leakage of gaseous refrigerant from the mating surface 213. In this embodiment, the mating surface 213 is arranged at an angle relative to the axial direction of the air inlet portion 210. That is, the mating surface 213 is not perpendicular to the axial direction of the air inlet portion 210, and can mate tightly with the inner wall surface of the housing.

[0048] It can be understood that the specific inclination angle of the mating surface 213 is adjusted according to the actual shell shape of the compressor. In addition, the mating surface 213 is not limited to a plane. According to the contour curvature of the inner wall surface of the shell, the mating surface 213 can also be a curved surface with a certain curvature, so that the mating surface 213 fits more tightly with the shell.

[0049] 2 and 5 , it can be understood that since the air intake portion 210 has a mating surface 213 that is tilted relative to the axial direction, the overall length of the air intake portion 210 is not evenly distributed, so that the lengths of all the air intake channels 212 are not exactly the same. Along the tilt direction of the mating surface 213, the length distribution of the multiple air intake channels 212 may show a gradually decreasing change, or the length distribution of the multiple air intake channels 212 may show a gradually increasing change.

[0050] Taking Figure 5 as a specific example, the mating surface 213 is arranged obliquely from top to bottom, and the length distribution of the air inlet channel 212 shows a gradually increasing trend. Along the vertical direction shown in Figure 5, the length of the lower air inlet channel 212 is greater than that of the upper air inlet channel 212. This structure allows the simultaneous placement of air inlet channels 212 of varying lengths within the air inlet portion 210. As can be appreciated, the air inlet channels 212 can dissipate acoustic energy, reducing noise. Intake channels 212 of varying lengths dissipate varying amounts of acoustic energy. For example, the higher the frequency of a noise wave, the shorter its wavelength. This acoustic wave is reflected in the shorter air inlet channel 212, weakening its energy. In other words, the shorter air inlet channel 212 can reduce high-frequency noise. This allows the air intake element 200 to process noise waves of varying frequency bands, effectively silencing low- and mid-frequency noise within the compressor and reducing high-frequency aerodynamic noise. This broadens the noise reduction frequency band and effectively improves the aerodynamic noise of the refrigerant flow on the suction side.

[0051] It can be understood that the axial direction of the air inlet channel 212 is the same as the axial direction of the air inlet part 210, and the inclination angle of the mating surface 213 is different, and the length distribution of the air inlet channel 212 will also change. The length of the air inlet channel 212 can be changed by adjusting the inclination angle of the mating surface 213, thereby changing the sound absorption band range of the air suction component 200 and achieving broadband sound absorption.

[0052] Referring to FIG. 5 , it should be noted that in the embodiment of the present application, the length L of each air inlet channel 212 is greater than or equal to 3 mm. The length distribution of the air inlet channels 212 in FIG. 5 shows a gradually increasing trend from top to bottom. Specifically, the length of the air inlet channels 212 near the upper side can be set to 3 mm, 5 mm, 6 mm, etc., while the length of the air inlet channels 212 near the lower side can be set to 8 mm, 10 mm, 12 mm, etc., depending on the noise frequency band of the compressor. It will be understood that when the length L of the air channel is less than 3 mm, its length is too short, which will reduce the noise reduction effect and the noise reduction effect is not ideal.

[0053] As shown in FIG6 , the cross-sectional shape of some of the air inlet passages 212 in the embodiment is a regular hexagon. Multiple air inlet passages 212 are evenly distributed to form a honeycomb structure. Therefore, the air inlet member of the embodiment can also be understood as a honeycomb-type air intake rubber sleeve structure. Furthermore, the air inlet member is manufactured by injection molding, making it easy to process and form a honeycomb structure. The honeycomb-like design layout of the air inlet passages 212 allows for a tighter arrangement of the air inlet passages 212 and more rational utilization of the space within the air inlet portion 210. This not only silences the low- and medium-frequency intake noise within the compressor, but also more efficiently guides the refrigerant, effectively improving intake efficiency and reducing the high-frequency aerodynamic noise of the refrigerant flow on the intake side.

[0054] Of course, the cross-sectional shape of the air intake channel 212 is not limited to a regular hexagon, and may also be a triangle, a square, a prism or other regular polygons. Adjacent air intake channels 212 can be fitted adjacent to each other to better utilize space and facilitate processing and manufacturing.

[0055] It is understandable that the larger the cross-sectional area of ​​the air inlet channel 212, the higher the air flow rate and flow velocity, which is likely to cause air flow to move, which is not conducive to the stable flow guidance effect and the noise reduction effect will be reduced; while if the cross-sectional area of ​​the air inlet channel 212 is too small, it will hinder the circulation of the refrigerant, affect the performance of the compressor, and reduce the cooling effect. Therefore, in the embodiment of the present application, the cross-sectional area of ​​each air inlet channel 212 is within the range of 1mm 2 Up to 10mm 2 Under the condition of meeting the above value range, it can ensure that the air inlet channel 212 has enough space to pass the refrigerant and play an effective role in guiding the flow, ensuring a better noise reduction effect. In a specific embodiment, the cross-sectional area of ​​the air inlet channel 212 can be set to 1mm 2, 2mm 2 , 5mm 2 , 10mm 2 Etc., can be selected according to the actual displacement, refrigerant and speed of the compressor.

[0056] As shown in Figures 1 and 3, the air outlet portion 220 is constructed as a sleeve 230, and the shell 100 is provided with an air inlet pipe 140, which is connected to the inlet 120. A clamp 300 is provided on the outside of the sleeve 230, and the clamp 300 is an elastic clamp. When the air suction piece 200 is assembled with the shell 100, the sleeve 230 is sleeved on the air inlet pipe 140. The elastic clamp is elastic and has operating parts 310 at both ends. By pressing the operating parts 310 at both ends of the elastic clamp, the ring diameter of the elastic clamp is increased, and then the elastic clamp is moved to the overlapping position of the sleeve 230 and the air inlet pipe 140, the two ends of the elastic clamp are loosened. Under the action of the elastic force, the elastic clamp will be deformed, and its ring diameter becomes smaller, so that the sleeve 230 can be tightened. The operation is simple, and the air suction piece 200 can be quickly assembled, and the assembly structure is reliable.

[0057] It should be noted that because the air intake member 200 is made of a soft rubber material, the sleeve 230 will deform slightly when squeezed by the elastic clamp, tightening the sleeve 230 more tightly around the air intake pipe 140 and improving the strength of the assembly structure. Furthermore, the form of the clamp 300 is not limited to the elastic clamp shown in Figures 1 and 3 ; a clamp 300 structure secured by bolts, buckles, or other means may also be employed.

[0058] 4 and 5 , an annular groove 231 is provided on the outer peripheral wall of the sleeve 230, and the elastic clamp is clamped in the annular groove 231. Since vibration occurs during the operation of the compressor, the elastic clamp is limited by the annular groove 231 to prevent the elastic clamp from falling off, thereby causing the sleeve 230 and the intake pipe 140 to loosen.

[0059] As shown in Figure 5, the inner wall of the sleeve 230 is provided with a protrusion 232, and the outer wall of the intake pipe 140 is provided with a groove 141. When the sleeve 230 is sleeved on the intake pipe 140, the protrusion 232 can be snapped into the groove 141 for positioning and fitting, thereby achieving a limiting effect, making the assembly of the sleeve 230 and the intake pipe 140 more secure, and the sleeve 230 is not easily separated from the intake pipe 140.

[0060] Specifically, the protrusion 232 extends along the inner circumferential wall of the sleeve 230. The cross-section of the protrusion 232 is roughly triangular. The groove 141 is an annular groove, and the cross-section of the groove 141 is roughly triangular. This allows the protrusion 232 to fit more tightly with the groove 141. When the protrusion 232 is inserted into the groove 141, the sidewalls of the groove 141 abut against the sidewalls of the protrusion 232, restricting the protrusion 232 from moving away from the housing 100. This provides a better positioning effect and a more secure structure.

[0061] According to a second aspect of the present application, an embodiment further provides a compressor comprising a housing, a compression mechanism, and the muffler 10 of the above embodiment, wherein the housing is provided with a through hole; the compression mechanism and muffler 10 are mounted within the housing, wherein an air intake member 200 is in contact with the inner wall surface of the housing via a mating surface 213, an air inlet 211 of the air intake member 200 is in communication with the through hole, and an outlet of the housing 100 is in communication with the compression mechanism. Refrigerant enters the air intake member 200 through the air inlet 211, flows through the air intake member 200, enters the muffler chamber 110 through the inlet 120, and then enters the compression mechanism through the outlet after passing through the muffler 10 for compression.

[0062] 1 and 2, in a specific embodiment, the air inlet portion 210 of the air suction member 200 is provided with a plurality of air inlets 211, and the air outlet portion 220 is provided with an air outlet 214. The plurality of air inlets 211 are spaced apart and distributed on the end surface of the air suction member 200. Each air inlet 211 is formed with an air inlet channel 212 toward the air outlet 214. Each air inlet channel 212 is connected to the air outlet 214. The refrigerant enters the air inlet channel 212 from the air inlet 211 and flows along the air inlet channel 214. 12 flows to the air outlet 214, plays a guiding role for the refrigerant airflow, guides the refrigerant through multiple air inlet channels 212, slows down the flow rate of the airflow, helps to reduce the turbulence of the airflow, makes the flow rate more stable, and helps to improve the air intake efficiency; the aerodynamic noise generated during the air intake process, because each air inlet channel 212 has a certain length, the sound wave propagates along the air inlet channel 212, can weaken the propagation energy of the sound wave, reduce the noise, and thus reduce the aerodynamic noise generated by the refrigerant flow. Moreover, after the refrigerant airflow comes out of the air suction part 200, it will enter the silencer chamber 110, and the silencer chamber 110 can further reduce the noise, thereby greatly reducing the aerodynamic noise of the compressor, which can achieve noise reduction from the source, meet the compressor's demand for quiet operation, and ensure the overall performance of the compressor.

[0063] It should be noted that the air intake element 200 is made of a soft rubber material and has an integrated structure. This reduces the number of components in the muffler 10 and simplifies the assembly process, thereby improving product assembly efficiency and reducing production costs. Since it deforms when subjected to external forces, the air intake rubber sleeve structure can maintain a close position against the inner wall of the compressor during operation, ensuring airtightness between the air intake element 200 and the outer casing and reducing the risk of refrigerant leakage.

[0064] According to the third aspect of the present application, an embodiment further provides a refrigeration device, which is specifically a refrigerator, a freezer, a freezer and the like, including the compressor of the above embodiment.

[0065] Since the refrigeration equipment adopts the above-mentioned compressor, an air suction part 200 is added to the shell 100 of the silencer 10. During operation, air is sucked in through the air suction part 200, and the refrigerant enters the silencer chamber 110 after passing through the air suction part 200. The air flow is guided through multiple air inlet channels 212 to improve the air suction efficiency, which is beneficial to reduce the turbulence of the air flow and weaken the sound wave energy entering the silencer chamber 110, thereby playing a noise reduction role, thereby improving the aerodynamic noise of the refrigerant flow on the suction side and reducing the operating noise of the refrigeration equipment.

[0066] Of course, the present application is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A muffler, applied to a compressor, comprising: A shell body having a silencer cavity therein, and the shell body having an inlet communicating with the silencer cavity; as well as An air suction member is connected to the shell, and one end of the air suction member is provided with multiple air inlets and the other end is provided with an air outlet. Each of the air inlets forms an air inlet channel toward the air outlet, and the multiple air inlet channels are respectively connected to the air outlet, and the air outlet is connected to the inlet.

2. The muffler according to claim 1, wherein: An air inlet is provided at one end of the air suction part, and an air outlet is provided at the other end. The cross-sectional area of ​​the air inlet is larger than the cross-sectional area of ​​the air outlet. The air inlet is provided with a mating surface adapted to the inner wall of the outer shell of the compressor. Multiple air inlets are distributed on the mating surface, and multiple air inlet channels are formed in the air inlet.

3. The muffler according to claim 1 or 2, wherein: The cross-sectional area of ​​each of the air inlet channels is 1 mm 2 Up to 10mm 2 .

4. The muffler according to claim 3, wherein: The cross-section of at least a portion of the air inlet passage is a regular polygon.

5. The muffler according to any one of claims 2 to 4, wherein: The air intake portion is cylindrical, the mating surface is inclined relative to the axial direction of the air intake portion, the axial direction of the air intake channel is the same as the axial direction of the air intake portion, and along the inclined direction of the mating surface, the length distribution of the multiple air intake channels shows a gradual decrease or increase.

6. The muffler according to claim 5, wherein: The length of each of the air inlet channels is greater than or equal to 3 mm.

7. The muffler according to any one of claims 1 to 6, wherein: The air suction member is made of soft rubber material, and the air inlet, the air inlet channel, the air outlet and the air suction member are an integrally formed structure.

8. The silencer according to any one of claims 1 to 7 further includes a clamp, wherein a sleeve is provided at one end of the air suction member away from the air inlet, the shell is provided with an air intake pipe connected to the inlet, the sleeve is sleeved on the air intake pipe, and the clamp is sleeved on the outer peripheral wall of the sleeve to fix the air suction member.

9. The muffler according to claim 8, wherein: An annular groove is provided on the outer peripheral wall of the sleeve, and the clamp is clamped in the annular groove.

10. The silencer according to claim 8 or 9, wherein: The inner peripheral wall of the sleeve is provided with a protrusion, and the outer peripheral wall of the air inlet pipe is provided with a groove, and the protrusion is positioned and matched with the groove.

11. A compressor comprising: a housing having a through hole; a compression mechanism, mounted in the housing; as well as The silencer according to any one of claims 1 to 10, wherein the silencer is arranged in the outer shell, the air inlet is connected to the through hole, and the shell is provided with an outlet connected to the compression mechanism.

12. A refrigeration device comprising the compressor according to claim 11.

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