Exhaust silencing assembly, compressor and refrigeration appliance

Abstract

This invention discloses an exhaust muffler assembly, a compressor, and a refrigeration appliance, relating to the field of compressor technology. It solves the problem of poor noise reduction effect of existing exhaust mufflers and improves the ability and effect of reducing exhaust noise and pulsation. The specific solution is as follows: the axis of the air inlet is perpendicular to that of the exhaust outlet. A first inner tube is fixedly installed at one end of the first exhaust pipe and passes through the air inlet and is inserted into the muffler mechanism. The end connection between the first inner tube and the first exhaust pipe is a constricted section with a size smaller than the diameter of the first exhaust pipe. The outlet end of the first inner tube faces away from the exhaust outlet. A buffer platform for buffering airflow is fixedly provided on the side wall of the muffler mechanism adjacent to the outlet end of the first inner tube.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to an exhaust silencing component, a compressor, and a refrigeration appliance. Background Technology

[0002] To reduce compressor exhaust noise, exhaust pulsation, and vibration, an exhaust pipe is added to the high-pressure side of the compressor. The exhaust pipe reduces the vibration of the compressor core through different shapes. Some exhaust pipes also have a muffler added to reduce exhaust noise and airflow pulsation. The compressor's exhaust pipe is installed on the compressor's cylinder seat. The discharged high-pressure gas enters the exhaust system through the muffler cover. The muffler cover and the cylinder seat form a high-pressure sealed cavity.

[0003] Existing exhaust muffler assemblies containing mufflers have the following problems: 1. Adding a muffler to the exhaust pipe increases the weight, and if the structural strength of the connecting section is insufficient, breakage is likely to occur at the connection between the muffler and the muffler cover; 2. The pipe diameter in the exhaust path is uniform, which is not conducive to reducing exhaust pulsation; 3. When the size of the muffler on the exhaust pipe is fixed, simply expanding the muffler cavity cannot meet the noise reduction requirements, and the exhaust column is prone to exciting resonance in the muffler shell; 4. The muffler cover is not structurally reinforced, which can easily cause high-pressure gas leakage. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide an exhaust muffler assembly, a compressor, and a refrigeration appliance. A first inner tube is provided within the muffler assembly and connected to a first exhaust pipe. A constricted section is provided between the first inner tube and the first exhaust pipe, with the outlet end of the first inner tube facing a buffer platform. Through the pressure reduction of the constricted section and the buffering effect of the buffer platform, airflow pulsation is effectively reduced, solving the problem of poor noise reduction performance in existing exhaust mufflers.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] In a first aspect, the present invention provides an exhaust muffler assembly, including a muffler cover and a muffler housing mechanism. The muffler cover is connected to the air inlet of the muffler housing mechanism via a first exhaust pipe. The exhaust port of the muffler housing mechanism is connected to a second exhaust pipe. The air inlet and the exhaust port are perpendicular to each other. A first inner tube is fixedly installed at one end of the first exhaust pipe and passes through the air inlet and is inserted into the muffler housing mechanism. The end connection between the first inner tube and the first exhaust pipe is a constricted section with a size smaller than the diameter of the first exhaust pipe. The exhaust end of the first inner tube faces away from the exhaust port. A buffer platform for buffering airflow is fixedly provided on the side wall of the muffler housing mechanism adjacent to the exhaust end of the first inner tube.

[0007] As a further implementation, the silencing cover is uniformly fixed with several reinforcing ribs.

[0008] As a further implementation, the first exhaust pipe has a Z-shaped pipe structure.

[0009] As a further implementation, the first inner tube is an L-shaped tube, and the air outlet end of the first inner tube is coaxially arranged with the buffer platform.

[0010] As a further implementation, the buffer platform has a conical structure.

[0011] As a further implementation, the inner wall of the sound-absorbing package mechanism is provided with several circular protrusions and the outer wall is provided with several circular concave points to form a wave pattern.

[0012] As a further implementation, a second inner tube is fixedly installed inside the muffler mechanism. The second inner tube is coaxially arranged and connected to the exhaust port. One end of the second inner tube is connected to the second exhaust pipe, and the other end is closed. Several through holes are evenly provided on the tube body of the second inner tube.

[0013] As a further implementation, the second exhaust pipe is a bent pipe structure.

[0014] Secondly, the present invention provides a compressor that includes the exhaust muffler assembly described in the first aspect.

[0015] Thirdly, the present invention provides a refrigeration appliance that utilizes the compressor described in the second aspect.

[0016] The beneficial effects of the present invention are as follows:

[0017] (1) The present invention provides a first inner tube in the silencing package mechanism, so that the first inner tube is connected to the first exhaust pipe. A constriction section is provided between the first inner tube and the first exhaust pipe, and the air outlet of the first inner tube is facing away from the exhaust port, so that the airflow will not be discharged directly from the first inner tube to the exhaust port, but will blow towards the buffer platform. With the pressure reduction of the constriction section and the buffering effect of the buffer platform, the pulsation of the airflow is effectively reduced.

[0018] (2) The silencer cover of the present invention is uniformly fixed with several reinforcing ribs to enhance the strength of the silencer cover, thereby ensuring the overall strength of the sealing structure and thus ensuring the airtightness of the exhaust chamber.

[0019] (3) The first exhaust pipe of the present invention is a Z-shaped pipe structure, which is used to strengthen the structural strength of the first exhaust pipe and can be used to buffer the impact of the muffler mechanism on the pipeline.

[0020] (4) The inner and outer walls of the silencing package mechanism of the present invention are provided with corrugated patterns, which can reduce the resonance sound excited by the air column. At the same time, the through holes evenly arranged on the body of the second inner tube can form a resonance cavity to reduce a specific frequency. Thus, the ability and effect of reducing exhaust noise and pulsation of gas can be greatly improved by using the second inner tube in conjunction with the corrugated patterns. Attached Figure Description

[0021] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0022] Figure 1 This is a top view of an exhaust muffler assembly according to one or more embodiments of the present invention;

[0023] Figure 2 This is a front view structural schematic diagram of an exhaust muffler assembly according to one or more embodiments of the present invention;

[0024] Figure 3 This is a side view structural schematic diagram of an exhaust muffler assembly according to one or more embodiments of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of the sound-absorbing bag according to one or more embodiments of the present invention;

[0026] In the diagram: the spacing or dimensions between parts have been exaggerated to show their positions; the diagram is for illustrative purposes only.

[0027] Among them, 1. muffler cover; 2. first exhaust pipe; 3. first muffler package; 4. second muffler package; 5. second exhaust pipe; 6. first inner tube; 7. buffer platform; 8. second inner tube; 9. reinforcing rib; 10. corrugated pattern. Detailed Implementation

[0028] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0029] As described in the background section, existing exhaust muffler assemblies containing mufflers have the following drawbacks: the weight increases after adding the muffler to the exhaust pipe, and if the structural strength of the connection section is insufficient, breakage is likely to occur at the connection section between the muffler and the muffler cover; the pipe diameter in the exhaust pipe is uniform, which is not conducive to reducing exhaust pulsation; when the size of the muffler on the exhaust pipe is fixed, simply expanding the muffler cavity cannot meet the noise reduction requirements, and the exhaust column is likely to excite resonance in the muffler shell; the lack of structural reinforcement of the muffler cover can easily cause high-pressure gas leakage. In order to solve the above technical problems, this invention proposes an exhaust muffler assembly, a compressor, and a refrigeration appliance.

[0030] Example 1

[0031] In a typical embodiment of the present invention, such as Figures 1-4 As shown, an exhaust muffler assembly is proposed, including a muffler cover 1 and a muffler housing mechanism. The muffler cover 1 is connected to the air inlet of the muffler housing mechanism through a first exhaust pipe 2, and the exhaust port of the muffler housing mechanism is connected to a second exhaust pipe 5.

[0032] The muffler cover 1 is installed on the exhaust chamber of the compressor cylinder seat. The muffler cover 1 and the cylinder seat form a sealed structure. When the compressor is running, high-pressure gas will enter the first exhaust pipe 2 through this sealed structure.

[0033] Several wedge-shaped reinforcing ribs 9 are evenly fixed on the muffler cover 1 to enhance the strength of the muffler cover 1, thereby ensuring the overall strength of the sealing structure and the airtightness of the exhaust chamber.

[0034] The first exhaust pipe 2 has a Z-shaped pipe structure to strengthen the structural strength of the first exhaust pipe and to buffer the impact of the muffler mechanism on the pipeline.

[0035] The axis of the air inlet of the muffler mechanism is perpendicular to the axis of the exhaust port. Specifically, the muffler mechanism consists of a first muffler 3 and a second muffler 4 arranged coaxially. The first muffler 3 and the second muffler 4 are fixedly connected together, and the inner cavity of the first muffler 3 is connected to the inner cavity of the second muffler 4.

[0036] The air inlet is located on the side wall of the first muffler 3, and the exhaust outlet is located on the side wall of the second muffler 4. The first exhaust pipe 2 is connected to the air inlet on the first muffler 3, and the second exhaust pipe 5 is connected to the exhaust outlet on the second muffler 4.

[0037] The first exhaust pipe 2 has a first inner tube 6 fixedly installed at one end for connecting to the air inlet on the first muffler 3. The first inner tube 6 is inserted into the first muffler 3 to reduce airflow pressure.

[0038] Specifically, such as Figure 4As shown, the end connection between the first inner tube 6 and the first exhaust pipe 2 is narrowed to form a narrowed section. The size of the narrowed section is smaller than the diameter of the first exhaust pipe 2. When the airflow enters the first muffler 3 after passing through the narrowed section, the flow velocity increases and the pressure decreases.

[0039] It is understood that in other embodiments, the first inner tube 6 may also be configured with an inner diameter smaller than that of the first exhaust pipe 2. The specific inner diameter of the first inner tube 6 shall be determined according to actual needs, and no further restrictions are imposed here.

[0040] The first inner tube 6 is an L-shaped tube. One end of the first inner tube 6 is fixedly connected to the first exhaust pipe 2, and the other end of the first inner tube 6 is inserted into the first muffler 3 in the opposite direction. That is, the air outlet of the first inner tube 6 faces away from the exhaust port on the second muffler 4, so that the airflow will not be discharged directly from the first inner tube 6 to the exhaust port.

[0041] It is understandable that the first inner tube 6 and the first exhaust tube 2 can be a single integral structure.

[0042] A buffer platform 7 is fixedly provided on the side wall of the first silencer 3 near the air outlet end of the first inner tube 6. The buffer platform 7 is a conical structure formed by stamping. The buffer platform 7 is coaxially arranged with the air outlet end of the first inner tube 6. The gas discharged from the first inner tube 6 first flows to the buffer platform 7 so as to use the buffer platform 7 to buffer the airflow. With the pressure reduction of the constriction section and the buffering effect of the buffer platform 7, the pulsation of the airflow is effectively reduced.

[0043] The inner and outer walls of the muffler are provided with corrugations 10 to reduce the resonance noise generated by the air column. Specifically, the inner and outer walls of the first muffler 3 and the inner and outer walls of the second muffler 4 are provided with a number of circular concave and convex points, wherein the concave points are located on the outer wall and the convex points are located on the inner wall, and the circular concave and convex points form corrugations.

[0044] The second muffler 4 is fixedly provided with a second inner tube 8 inside. The second inner tube 8 is fixedly installed inside the second muffler 4 by welding. The second inner tube 8 is coaxially arranged and connected with the exhaust port of the second muffler 4.

[0045] One end of the second exhaust pipe 5 is inserted into the exhaust port and connected to the second inner tube 8. The airflow in the second muffler 4 enters the second exhaust pipe 5 through the second inner tube 8 and is discharged outward through the second exhaust pipe 5.

[0046] One end of the second inner tube 8 is connected to the second exhaust pipe 5, and the other end of the second inner tube 8 is closed. Several through holes are evenly arranged along the circumferential and axial directions on the tube body of the second inner tube 8. The airflow in the second muffler 4 passes through the through holes and enters the second inner tube 8. The evenly arranged through holes can form a resonant cavity to reduce specific frequencies. With the use of the wave pattern, the ability and effect of reducing exhaust noise and pulsation of the gas can be greatly improved by utilizing the combination of the second inner tube 8 and the wave pattern.

[0047] The second exhaust pipe 5 has a curved pipe structure. After the gas enters the second exhaust pipe 5 through the second inner pipe 8, the vibration is reduced by the curved shape of the second exhaust pipe 5, and the gas finally flows out of the compressor from the second exhaust pipe 5.

[0048] Example 2

[0049] In a typical embodiment of the present invention, a compressor is provided that utilizes the exhaust silencing assembly described in Example 1.

[0050] The muffler cover 1 is installed on the exhaust chamber of the compressor cylinder seat. The muffler cover 1 and the cylinder seat form a sealed structure. When the compressor is running, the high-pressure gas enters the first exhaust pipe 2 from the sealed structure and exits the compressor through the first inner tube 6, the muffler mechanism, the second inner tube 8, and the second exhaust pipe 5 in sequence.

[0051] Example 3

[0052] In a typical embodiment of the present invention, a refrigeration appliance is provided that utilizes the compressor described in Example 2.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An exhaust sound deadening assembly comprising a sound deadening cover and a sound deadening pack mechanism, the sound deadening cover being connected to an inlet of the sound deadening pack mechanism by a first exhaust pipe, an outlet of the sound deadening pack mechanism being connected to a second exhaust pipe, characterized in that, The air inlet and the exhaust outlet are perpendicular to each other. One end of the first exhaust pipe is fixedly installed with a first inner tube and inserted into the muffler mechanism through the air inlet. The connection between the end of the first inner tube and the first exhaust pipe is a constricted section with a size smaller than the diameter of the first exhaust pipe. The air outlet of the first inner tube faces away from the exhaust outlet. A buffer platform for buffering airflow is fixedly provided on the side wall of the muffler mechanism near the air outlet of the first inner tube. The first inner tube is an L-shaped tube, and the air outlet end of the first inner tube is coaxially arranged with the buffer platform. The muffler mechanism has a second inner tube fixedly installed inside. The second inner tube is coaxially arranged and connected to the exhaust port. One end of the second inner tube is connected to the second exhaust pipe and the other end is closed. Several through holes are evenly provided on the tube body of the second inner tube. The buffer platform is a conical structure formed by stamping. The muffler mechanism consists of a first muffler and a second muffler arranged coaxially, with the first and second mufflers fixedly connected together and the inner cavities of the first and second mufflers communicating with each other. The air inlet is located on the side wall of the first muffler, and the exhaust outlet is located on the side wall of the second muffler. The first inner tube is inserted into the first muffler, and the second inner tube is fixedly installed in the second muffler. The inner and outer walls of the first and second sound-absorbing bags are provided with a number of circular concave and convex points, wherein the concave points are located on the outer wall and the convex points are located on the inner wall, and the circular concave and convex points form a wave pattern.

2. An exhaust silencing assembly according to claim 1, wherein, The silencing cover is uniformly fixed with several reinforcing ribs.

3. An exhaust silencing assembly according to claim 1, wherein, The first exhaust pipe has a Z-shaped structure.

4. The exhaust muffler assembly according to claim 1, characterized in that, The second exhaust pipe has a bent pipe structure.

5. A compressor, characterized in that, It includes the exhaust muffler assembly as described in any one of claims 1-4.

6. A refrigeration appliance, characterized in that, The compressor described in claim 5 is used.

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