Integrated exhaust silencer and piston refrigeration compressor

Abstract

The invention relates to an integrated exhaust silencer and a piston refrigeration compressor, the silencer comprises a connecting seat, a first silencing cavity is arranged in the connecting seat, and an air inlet communicated with the first silencing cavity and the outside is formed in the connecting seat; second silencing cavities are formed in the silencing seats, the silencing seats are connected with the connecting seat, the two silencing seats are distributed on the two sides of the connecting seat in the radial direction of the air inlet opening, the first silencing cavity is communicated with the second silencing cavity in one silencing seat through a first connecting pipe, and an exhaust hole communicated with the second silencing cavity and the outside is formed in the other silencing seat; and the two second silencing cavities are communicated through a second connecting pipe. Through the synergistic effect of the three stages of silencing cavities, exhaust noise is reduced, the two silencing bases are distributed on the two sides of the connecting base in the radial direction of the air inlet, the occupied space in the axial direction of the air inlet is small, flat integrated design can be achieved, and the integrated design requirement of a small compressor can be met.

Description

Technical Field

[0001] This invention relates to the technical field of compressors, and specifically to an integrated exhaust muffler and a piston refrigeration compressor. Background Technology

[0002] Currently, the refrigerator market has an increasingly strong demand for quiet products, and the compressor, as the core component of the refrigerator, is one of the main sources of refrigerator noise. Therefore, noise reduction is very important for piston compressors.

[0003] Reducing exhaust noise during compressor operation is crucial to the overall comfort of the refrigerator compressor, and the design of an integrated exhaust muffler is a key issue that needs to be addressed. Summary of the Invention

[0004] Based on the above description, the present invention provides an integrated exhaust muffler and a piston refrigeration compressor to reduce exhaust noise during compressor operation.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: In a first aspect, this application provides an integrated exhaust muffler, comprising: A connecting seat, wherein a first silencing chamber is provided inside the connecting seat, and an air inlet is provided on the connecting seat to connect the first silencing chamber to the outside; Two mufflers are provided, each containing a second muffler chamber. The mufflers are connected to the connecting seat. The two mufflers are radially distributed on both sides of the connecting seat at the air inlet. The first muffler chamber and the second muffler chamber in one of the mufflers are connected by a first connecting pipe. The other muffler is provided with an exhaust port connecting the second muffler chamber to the outside. The two second mufflers are connected by a second connecting pipe.

[0006] The two silencers are connected by a connecting plate, which has a through mounting hole. The connecting seat passes through the mounting hole and is connected to the connecting plate.

[0007] Preferably, the two silencers are connected by a connecting plate, the connecting plate having a through mounting hole, and the connecting seat passing through the mounting hole and connected to the connecting plate.

[0008] Preferably, the connecting seat includes a main body and a limiting ring. The limiting ring surrounds the main body and is coaxially arranged with the air inlet. The outer diameter of the limiting ring is larger than the diameter of the mounting hole. The connecting seat passes through the mounting hole from one side of the connecting plate. The limiting ring abuts against the connecting plate and is fixed to the connecting plate. The axis of the air inlet is perpendicular to the surface of the connecting plate.

[0009] Preferably, the muffler includes a cavity and a cavity cover. The cavity has an opening on one side of the air inlet in the axial direction, and the opening faces the same direction as the air inlet. The cavity cover is connected to the cavity and closes the opening.

[0010] Preferably, the connecting plate includes a first plate and a second plate, the first plate connects the two cavities, the second plate connects the two cavity covers, the first plate and the second plate are parallel to each other and fit together, and the mounting hole passes through the first plate and the second plate.

[0011] Preferably, the opening edges of the first plate and the cavity are connected, the connecting seat passes through the first plate and the second plate in sequence, and the limiting ring abuts against the first plate and is fixed to the first plate.

[0012] Preferably, the connecting seat is integrally formed, the first plate and the two cavities are integrally formed, and the second plate and the two cavity covers are integrally formed.

[0013] Preferably, the vent is located on the cavity cover.

[0014] Secondly, this application provides a piston refrigeration compressor, including the integrated exhaust muffler as described above.

[0015] Compared with the prior art, the technical solution of this application has at least the following beneficial technical effects: This application incorporates a connecting seat and two silencer seats. The connecting seat connects to the compressor exhaust port. High-pressure gas generated by the compressor enters the first silencer chamber through the inlet, then flows sequentially through the second and third silencer chambers before being discharged from the exhaust port. The sudden increase in the volume of the first, second, and third silencer chambers significantly reduces the airflow velocity, allowing the high-pressure gas to diffuse and buffer effectively, thus weakening gas turbulence and impact noise. Through the synergistic effect of the three-stage silencer chambers, efficient attenuation of exhaust noise is achieved, significantly reducing the interference of exhaust noise on the surrounding environment. The multi-stage buffering design makes the airflow discharge smoother, avoiding the generation of secondary turbulence noise. Under the premise of efficient silencing, the airflow pressure loss is small and will not affect the normal exhaust efficiency of the compressor. Furthermore, the two silencer seats are radially distributed on both sides of the connecting seat at the inlet, occupying little space in the axial direction of the inlet, enabling a flat integrated design that meets the integrated design requirements of miniaturized compressors. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the integrated exhaust muffler provided in an embodiment of the present invention; Figure 2 An exploded schematic diagram of an integrated exhaust muffler provided in an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Connecting seat; 11. First silencing chamber; 12. Air inlet; 13. Main body; 14. Limiting ring; 2. Silencing seat; 21. Second silencing chamber; 22. Chamber body; 23. Chamber cover; 24. Exhaust port; 3. First connecting pipe; 4. Second connecting pipe; 5. Connecting plate; 51. Mounting hole; 52. First plate body; 53. Second plate body. Detailed Implementation

[0018] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0020] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0021] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0022] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0023] Reference Figure 1 and Figure 2 As shown, this application provides an integrated exhaust muffler, which includes a connecting seat 1 and two muffler seats 2. The connecting seat 1 has a first muffler cavity 11 and an air inlet 12 that connects the first muffler cavity 11 to the outside. The two muffler seats 2 each have a second muffler cavity 21. The muffler seats 2 are connected to the connecting seat 1 and are radially distributed on both sides of the connecting seat 1 at the air inlet 12. The first muffler cavity 11 and the second muffler cavity 21 in one of the muffler seats 2 are connected by a first connecting pipe 3. The other muffler seat 2 has an exhaust port 24 that connects the second muffler cavity 21 to the outside. The two second muffler cavities 21 are connected by a second connecting pipe 4.

[0024] The connecting seat 1 is connected to the compressor exhaust port. The high-pressure gas generated by the compressor enters the first silencer chamber 11 through the air inlet 12, and then flows through the second silencer chamber 21 and the third silencer chamber in sequence before being discharged from the exhaust port. The sudden increase in the volume of the first silencer chamber 11, the second silencer chamber 21 and the third silencer chamber significantly reduces the airflow velocity, allowing the high-pressure gas to diffuse and buffer effectively, thus reducing gas turbulence and impact noise.

[0025] Through the synergistic effect of the three-stage silencing chamber, exhaust noise can be efficiently attenuated, significantly reducing the interference of exhaust noise on the surrounding environment; the multi-stage buffer design makes the airflow discharge more stable, avoiding the generation of secondary turbulence noise; under the premise of efficient silencing, the airflow pressure loss is small and will not affect the normal exhaust efficiency of the compressor.

[0026] Furthermore, the two silencer seats 2 are radially distributed on both sides of the connecting seat 1 at the air inlet 12, occupying little space in the axial direction of the air inlet 12, which can realize a flat integrated design and meet the integrated design requirements of miniaturized compressors.

[0027] The connecting seat 1, which connects to the compressor cylinder seat, can be designed according to the specific exhaust port of the compressor. When a connection to the compressor via a pipe is required, a connector or pipe can be provided on the connecting seat 1 to connect to the air inlet 12 for connection to the compressor.

[0028] Reference Figure 1 and Figure 2As shown, in this embodiment, the connecting seat 1 includes a main body 13, which includes a coaxial cylindrical section and a frustum section. The air inlet 12 is located on the end face of the frustum section. During installation, the connecting seat 1 passes through the exhaust port of the compressor's upper exhaust chamber and is welded and fixed to the cylindrical section and the exhaust chamber to form a sealed connection, so that the high-pressure gas in the exhaust chamber is directly input into the first silencer chamber 11 from the air inlet 12, thereby reducing unnecessary pipelines and realizing integrated design.

[0029] Reference Figure 1 and Figure 2 As shown, the muffler base 2 includes a cavity 22 and a cavity cover 23. The cavity 22 has an opening on one side axially above the air inlet, with the opening facing the same direction as the air inlet 12. The cavity cover 23 is connected to the cavity 22 and closes the opening. The split design of the muffler base 2 facilitates the fabrication of the second muffler cavity 21. During installation, the cavity cover 23 and the cavity 22 are connected and welded together to form a closed second muffler cavity 21.

[0030] Reference Figure 1 and Figure 2 As shown, in order to connect the connecting seat 1 and the muffler seat 2, the two mufflers 2 are connected by a connecting plate 5. The connecting plate 5 has a through mounting hole 51, and the connecting seat 1 passes through the mounting hole 51 and is connected to the connecting plate 5.

[0031] Reference Figure 1 and Figure 2 As shown, the connecting seat 1 also includes a limiting ring 14, which surrounds the main body 13 and is coaxially arranged with the air inlet 12. The outer diameter of the limiting ring 14 is larger than the diameter of the mounting hole 51. The connecting seat 1 passes through the mounting hole 51 from one side of the connecting plate 5. The limiting ring 14 abuts against the connecting plate 5 and is fixed to the connecting plate 5. The axis of the air inlet 12 is perpendicular to the surface of the connecting plate 5.

[0032] When assembling the muffler, after the main body 13 of the connecting seat 1 passes through the connecting plate 5 and the limiting ring 14 abuts against the connecting plate 5, the two ends of the first connecting pipe 3 can be connected to the connecting seat 1 and the corresponding muffler seat 2 respectively, so that the first muffler cavity 11 and the corresponding second muffler cavity 21 are connected. Then, the connecting seat 1 and the connecting plate 5 are fixed by welding. The connection operation of the connecting seat 1 and the two muffler seats 2 is relatively convenient.

[0033] Reference Figure 1 and Figure 2 As shown, the limiting ring 14 surrounds the cylindrical section of the main body 13, and the entire connecting seat 1 is integrally molded. Furthermore, the connecting plate 5 is configured to include a first plate 52 and a second plate 53. The first plate 52 connects two cavities 22, and the second plate 53 connects two cavity covers 23. The first plate 52 and the second plate 53 are parallel to each other and fit together. The mounting hole 51 penetrates through the first plate 52 and the second plate 53.

[0034] Reference Figure 1 and Figure 2 As shown, the two cavities 22 are connected by the first plate 52 to form a whole, and the two cavity covers 23 are connected by the second plate 53 to form a whole. In this embodiment, the first plate 52 and the two cavities 22 are integrally formed, and the second plate 53 and the two cavity covers 23 are integrally formed. The two cavities 22 and the two cavity covers 23 are integrally machined, so the assembly and sealing of the two mufflers 2 can be completed in one step during assembly, which can ensure the structural strength of the mufflers 2 and improve the assembly efficiency.

[0035] Reference Figure 1 and Figure 2 As shown, the opening edges of the first plate 52 and the cavity 22 are connected. The connecting seat 1 passes through the first plate 52 and the second plate 53 in sequence. The limiting ring 14 abuts against the first plate 52 and is fixed to the first plate 52. After the two muffler seats 2 are assembled into one piece, the connecting seat 1 passes through the first plate 52 and the second plate 53 in sequence, so that the limiting ring 14 abuts against the first plate 52 and is welded and fixed to the first plate 52, thus completing the assembly of the muffler.

[0036] Reference Figure 1 and Figure 2 As shown, in this embodiment, the exhaust port 24 and the hole connecting to the first connecting pipe 3 are both provided on the cavity cover 23, and connecting holes communicating with the corresponding second silencing cavities 21 are respectively provided on the two cavity covers 23. The two ends of the second connecting pipe 4 are respectively connected to the two connecting holes. After the cavity cover 23 is processed, the second connecting pipe 4 can be directly welded to the two cavity covers 23, so that after the cavity cover 23 and the cavity body 22 are assembled, the two ends of the second connecting pipe 4 are respectively connected to the two second silencing cavities 21.

[0037] In further design, a sound-absorbing coating can be applied to the inner wall of each silencing cavity to improve the sound absorption and silencing effect.

[0038] The integrated exhaust muffler described in this embodiment achieves multi-stage silencing, realizing a large silencing cavity 22 volume and good silencing effect within the effective compressor space. This effectively reduces noise and achieves an integrated design, meeting the requirements of compressor miniaturization. The muffler consists of an integrally molded connecting seat 1, two integrally molded cavities 22 and a first plate 52, as well as two integrally molded end caps and a second plate 53. It is assembled using common brazing and other sealing assembly processes, allowing for faster and more efficient production and assembly.

[0039] This embodiment also provides a piston refrigeration compressor, which includes the integrated exhaust muffler described above. The specific compressor structure is a conventional technique and will not be elaborated here.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated exhaust muffler, characterized in that, include: Connecting seat (1), the connecting seat (1) is provided with a first silencing cavity (11), and the connecting seat (1) is provided with an air inlet (12) that connects the first silencing cavity (11) and the outside. Two mufflers (2) are provided, each muffler (2) having a second muffler cavity (21). The mufflers (2) are connected to the connecting seat (1). The two mufflers (2) are radially distributed on both sides of the connecting seat (1) at the air inlet (12). The first muffler cavity (11) and the second muffler cavity (21) in one of the mufflers (2) are connected by a first connecting pipe (3). The other muffler (2) has an exhaust hole (24) that connects the second muffler cavity (21) to the outside. The two second mufflers (21) are connected by a second connecting pipe (4).

2. The integrated exhaust muffler according to claim 1, characterized in that: The two silencers (2) are connected by a connecting plate (5), and the connecting plate (5) has a through mounting hole (51). The connecting seat (1) passes through the mounting hole (51) and is connected to the connecting plate (5).

3. The integrated exhaust muffler according to claim 2, characterized in that: The connecting seat (1) includes a main body (13) and a limiting ring (14). The limiting ring (14) surrounds the main body (13) and is coaxially arranged with the air inlet (12). The outer diameter of the limiting ring (14) is larger than the diameter of the mounting hole (51). The connecting seat (1) passes through the mounting hole (51) from one side of the connecting plate (5). The limiting ring (14) abuts against the connecting plate (5) and is fixed to the connecting plate (5). The axis of the air inlet (12) is perpendicular to the surface of the connecting plate (5).

4. The integrated exhaust muffler according to claim 3, characterized in that: The muffler seat (2) includes a cavity (22) and a cavity cover (23). The cavity (22) has an opening on one side of the air inlet in the axial direction, and the opening faces the same direction as the air inlet (12). The cavity cover (23) is connected to the cavity (22) and closes the opening.

5. The integrated exhaust muffler according to claim 4, characterized in that: The connecting plate (5) includes a first plate (52) and a second plate (53). The first plate (52) connects the two cavities (22), and the second plate (53) connects the two cavity covers (23). The first plate (52) and the second plate (53) are parallel to each other and fit together. The mounting hole (51) passes through the first plate (52) and the second plate (53).

6. The integrated exhaust muffler according to claim 5, characterized in that: The opening edges of the first plate (52) and the cavity (22) are connected, the connecting seat (1) passes through the first plate (52) and the second plate (53) in sequence, and the limiting ring (14) abuts against the first plate (52) and is fixed to the first plate (52).

7. The integrated exhaust muffler according to claim 5, characterized in that: The connecting seat (1) is integrally formed, the first plate (52) and the two cavities (22) are integrally formed, and the second plate (53) and the two cavity covers (23) are integrally formed.

8. The integrated exhaust muffler according to claim 4, characterized in that: The exhaust port (24) is located on the cavity cover (23).

9. A piston refrigeration compressor, characterized in that: Includes the integrated exhaust muffler as described in any one of claims 1-8.

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