A transverse three-chamber air intake muffler and compressor

Abstract

The utility model discloses a kind of transverse three-cavity suction muffler, belong to refrigerator compressor technical field, including first shell and second shell, first shell connects first, second baffle, and the closed structure is spaced into first, second, third chamber along horizontal direction arrangement;Third chamber is between first chamber and second chamber;First shell is equipped with first, second, third flow guide pipe, first flow guide pipe is communicated with air inlet and first chamber, second flow guide pipe is communicated with first chamber and second chamber, and third flow guide pipe is communicated with second chamber and third chamber;Second chamber is connected with arc flow guide plate, and arc flow guide plate is towards second flow guide pipe and third flow guide pipe;Fourth flow guide pipe is equipped in third chamber and tightly first baffle, fourth flow guide pipe is communicated with third chamber and discharge port, and third flow guide pipe end top surface extension line is flush with fourth flow guide pipe bottom end. Solve the angle formed between different flow guide pipes in prior art, there is the problem of large local pressure loss.

Description

Technical Field

[0001] This utility model belongs to the field of refrigerator compressor technology, specifically relating to a horizontally mounted three-chamber intake muffler and compressor. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] The intake noise of the refrigerator compressor is a significant source of overall noise. The compressor noise mainly comes from the vibration and radiation noise of the casing and the noise inside the casing. Current technology primarily uses intake silencers to reduce noise.

[0004] There are two main types of intake mufflers. One type is a serpentine guide tube, which is coaxially connected to the inlet and outlet of the muffler housing. This results in low pressure loss and low flow resistance. However, the serpentine guide tube needs to be divided into two parts, which are then fastened together. This leads to problems such as large gaps, easy loosening, poor sealing, and large leakage, resulting in noise levels not meeting design requirements and inconsistent performance. The other type is a straight-insertion tube, which is not a two-part fastening method. This results in low leakage and the actual noise reduction effect is more consistent with the design. However, the angles between different guide tubes cause large local pressure losses, and the flow resistance is high, leading to low efficiency.

[0005] For example, the prior art discloses a three-chamber parallel arrangement compressor intake silencer, including a housing and a side cover. A vertically arranged vent pipe is provided in the middle of the housing. The housing is provided with left and right partitions that divide the inner cavity of the housing into a left intake chamber, a middle silencer chamber, and a right silencer chamber. A long air pipe is the intake pipe that passes through the middle silencer chamber, and the two ends of the intake pipe are connected to the left intake chamber and the right silencer chamber, respectively. A short air pipe is a transition pipe that connects the middle silencer chamber and the right silencer chamber. The left and right partitions are sealed to the side cover. An air inlet is opened on the housing or the side cover corresponding to the intake chamber.

[0006] The above solution uses a non-locking air tube to address the poor sealing problem, but it still has the following drawbacks: The above scheme creates an angle between the transition tube and the intake tube in the right silencer cavity, and also between the transition tube and the venting tube in the middle silencer cavity, resulting in a problem of large local pressure loss. Utility Model Content

[0007] In view of this, the purpose of this utility model is to provide a horizontal three-chamber intake muffler and compressor, which can solve the problem of large local pressure loss caused by the angle formed between different guide pipes in the prior art.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, a horizontally positioned three-chamber intake muffler is provided, comprising a first housing and a second housing that are inserted together to form a closed structure; the first housing is connected to an air inlet, and the second housing is connected to an outlet. A first partition and a second partition are connected to the first shell, dividing the closed structure into a first chamber, a second chamber, and a third chamber arranged in a horizontal direction; the third chamber is located between the first chamber and the second chamber. The first housing is provided with a horizontal first guide pipe, a second guide pipe, and a third guide pipe. The first guide pipe connects the air inlet and the first chamber, the second guide pipe connects the first chamber and the second chamber, and the third guide pipe connects the second chamber and the third chamber. An arc-shaped guide plate is connected inside the second chamber, and the arc-shaped guide plate faces the second guide pipe and the third guide pipe. The third chamber is equipped with a vertical fourth guide pipe that is closely attached to the first partition. The fourth guide pipe connects the third chamber to the outlet, and the extension line of the top surface of the third guide pipe is flush with the bottom end of the fourth guide pipe.

[0009] Preferably, the second housing is connected to the first slot and the second slot at positions corresponding to the first partition and the second partition, with the first insert plate inserted into the first slot and the second insert plate inserted into the second slot.

[0010] Preferably, a vertical fourth guide tube is integrally connected to the second housing. The fourth guide tube is located between the first slot and the second slot, and is set close to the first slot.

[0011] Preferably, the top end of the fourth guide tube extends out of the second housing and connects to the outlet, and the extension line of the bottom end is aligned with the outlet end of the third guide tube.

[0012] Preferably, the four edges of the first housing are connected to sealing protrusions, and the four edges of the second housing are connected to protrusion grooves, with the sealing protrusions engaging and sealing within the protrusion grooves.

[0013] Preferably, the first guide tube is connected to the side wall of the first chamber, one end of the first guide tube extends out of the first housing and connects to the air inlet, and a filter screen is installed at the air inlet; the other end of the first guide tube extends into the first chamber and does not contact the first partition, and the first partition has a resonance hole at the position corresponding to the first guide tube.

[0014] Preferably, a first through hole is formed on the second partition, one end of the second guide tube is connected to the first chamber through a resonance hole, and the other end is connected to the second chamber through the first through hole; the second guide tube and the first guide tube are arranged coaxially.

[0015] Preferably, a second through hole is also provided on the second partition plate, and the second through hole is located on the side of the first through hole facing the second housing.

[0016] Preferably, the third guide tube is located in the third chamber, one end of the third guide tube is connected to the second through hole of the second partition, and the other end is not in contact with the first partition. The third guide tube and the second guide tube are arranged in parallel on the same horizontal plane.

[0017] Secondly, a compressor is provided, including the aforementioned horizontally mounted three-chamber intake muffler.

[0018] Compared with the prior art, the advantages and positive effects of this utility model are: This invention incorporates an arc-shaped guide plate within the second chamber. While ensuring sound transmission loss within the second chamber, it reduces the flow path and guides the refrigerant flow direction. The refrigerant flows in from the inlet of the second chamber, quickly turns back, and flows out from the outlet, reducing pressure loss and improving efficiency. Furthermore, the fourth guide pipe is positioned close to the first baffle, and the extended line of the top surface of the third guide pipe is flush with the bottom of the fourth guide pipe. The refrigerant flowing out from the third guide pipe is blocked and guided by the first baffle, then drawn into the fourth guide pipe, reducing the refrigerant flow distance and further decreasing pressure loss, thus improving efficiency. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0020] Figure 1 This is a three-dimensional schematic diagram of the horizontally placed three-chamber intake silencer of Embodiment 1 or 2 of this utility model; Figure 2 This is a frontal three-dimensional schematic diagram of the first housing of Embodiment 1 or 2 of this utility model; Figure 3 This is a three-dimensional schematic diagram of the right side of the first housing in Embodiment 1 or 2 of this utility model; Figure 4 This is a three-dimensional schematic diagram of the second shell of Embodiment 1 or 2 of this utility model; Figure 5 This is a cross-sectional view of the horizontally placed three-chamber intake silencer of Embodiment 1 or 2 of this utility model; In the picture: 1. First housing; 11. First partition; 12. Second partition; 13. Air inlet; 14. First guide pipe; 15. Second guide pipe; 16. Third guide pipe; 17. Resonance hole; 2. Second housing; 21. First slot; 22. Second slot; 23. Arc-shaped guide plate; 24. Fourth guide pipe; 25. Outlet; 26. First through hole; 27. Second through hole; 3. Filter screen; 4. First chamber; 5. Second chamber; 6. Third chamber. Detailed Implementation

[0021] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, 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 invention pertains.

[0022] The present invention will now be described in detail with reference to the accompanying drawings.

[0023] Example 1 This embodiment discloses a horizontally positioned three-chamber intake silencer, such as... Figure 1 , Figure 5 As shown, it includes a first housing 1 and a second housing 2, which are inserted together to form a closed structure. The closed structure has an air inlet 13 and an air outlet 25, wherein the air inlet 13 is connected to the first housing 1 and the air outlet 25 is connected to the second housing 2. Figure 2 , Figure 3 , Figure 4 As shown, a vertical first partition 11 and a second partition 12 (the first housing 1, the first partition 11, and the second partition 12 are made of the same material and can be integrally formed) are fixedly connected to the first housing 1, dividing the closed structure into a first chamber 4, a second chamber 5, and a third chamber 6; the three chambers are arranged in a horizontal direction, wherein the third chamber 6 is located between the first chamber 4 and the second chamber 5.

[0024] like Figure 2 , Figure 3 As shown, the first housing 1 is provided with a horizontal first guide pipe 14, a second guide pipe 15, and a third guide pipe 16. The first guide pipe 14 connects the air inlet 13 and the first chamber 4, the second guide pipe 15 connects the first chamber 4 and the second chamber 5, and the third guide pipe 16 connects the second chamber 5 and the third chamber 6.

[0025] like Figure 2 , Figure 3 As shown, an arc-shaped guide plate 23 is installed in the second chamber 5. The center of the arc-shaped guide plate 23 faces the second guide pipe 15 and the third guide pipe 16. When the refrigerant enters the second chamber 5 from the second guide pipe 15, it is guided into the third guide pipe 16 by the arc-shaped guide plate 23. The arc-shaped guide plate 23 can reduce the flow path of the refrigerant and guide the flow direction of the refrigerant. The refrigerant flows into the second chamber 5 from the outlet of the second guide pipe 15 and can quickly turn back 180° and flow out of the second chamber 5 from the inlet of the third guide pipe 16, which plays a role in diverting the flow and reducing pressure loss.

[0026] like Figures 1 to 4As shown, a vertical fourth guide pipe 24 is installed in the third chamber 6. The fourth guide pipe 24 is set close to the first partition 11. The fourth guide pipe 24 connects the third chamber 6 and the outlet 25. The third guide pipe 16 is perpendicular to the fourth guide pipe 24. The extension line of the top surface of the third guide pipe 16 is flush with the bottom end of the fourth guide pipe 24. When refrigerant is discharged from the outlet of the third guide pipe 16, the refrigerant is blocked and guided by the first partition 11 and then discharged upward from the fourth guide pipe 24. The fourth guide pipe 24 is close to the first partition, and the outlet of the third guide pipe 16 is close to the extension line of the inlet of the fourth guide pipe 24, which can reduce the flow distance of the refrigerant and further reduce the pressure loss.

[0027] In this embodiment, by setting an arc-shaped guide plate 23 in the second chamber 5 and setting a fourth guide pipe 24 closely attached to the first partition 11 in the third chamber 6, and making the outlet of the third guide pipe 16 close to the extension line of the inlet of the fourth guide pipe 24, the pressure loss of refrigerant flowing through the second guide pipe, the third guide pipe and between the third guide pipe and the fourth guide pipe can be reduced, thereby improving efficiency.

[0028] like Figure 4 As shown, the second housing 2 is connected to the first slot 21 and the second slot 22 at positions corresponding to the first partition 11 and the second partition 12. When the first housing 1 and the second housing 2 are inserted and connected, the first partition 11 is inserted into the first slot 21 and the second partition 12 is inserted into the second slot 22, thereby dividing the interior of the muffler into three independent chambers, which are arranged horizontally. Since the first housing 1 and the second housing 2 form a closed structure by insertion and connection, the first slot 21 and the second slot 22 also serve a sealing function.

[0029] like Figures 2 to 5 As shown, the four edges of the first housing 1 are connected to sealing protrusions, and the four edges of the second housing 2 are connected to protrusion grooves. When the first housing 1 and the second housing 2 are fastened together, the sealing protrusion of the first housing 1 is inserted into the protrusion groove of the second housing 2 to achieve fastening and sealing. After the first housing 1 and the second housing 2 are fastened together, sealing welding is performed on the four edges to improve the sealing effect.

[0030] like Figure 2 , Figure 3 , Figure 5 As shown, the first guide pipe 14, the second guide pipe 15, and the third guide pipe 16 are installed and connected to the first housing 1. Specifically, the first guide pipe 14 is connected to the side wall of the first chamber 4. One end of the first guide pipe 14 extends out of the first housing 1 and connects to the air inlet 13, while the other end extends into the first chamber 4. The first guide pipe 14 does not contact the first partition 11. The first partition 11 has resonance holes 17 at positions corresponding to the first guide pipe 14, so that the first chamber 4 forms a resonant silencing cavity.

[0031] In this embodiment, the refrigerant enters the muffler through the inlet 13, first passes through the first guide pipe 14 into the first chamber 4 for muffler operation, and then passes through the resonance hole 17 into the second chamber 5.

[0032] like Figure 2 , Figure 3 , Figure 5 As shown, the second guide tube 15 connects the first chamber 4 and the second chamber 5. Specifically, both ends of the second guide tube 15 are connected to the first partition 11 and the second partition 12, respectively, and the second guide tube 15 and the first guide tube 14 are arranged coaxially. A first through hole 26 is opened on the second partition 12. One end of the second guide tube 15 is connected to the first chamber 4 through a resonance hole 17, and the other end of the second guide tube 15 is connected to the second chamber 5 through the first through hole 26. It should be noted that neither end of the second guide tube 15 is inserted into the first chamber 4 or the second chamber 5. In this embodiment, the second chamber 5 is an expansion-type silencing cavity.

[0033] In this embodiment, as Figure 3 As shown, a second through hole 27 is opened on the second partition 12. The second through hole 27 is adjacent to the first through hole 26. The second through hole 27 is located on the side of the first through hole 26 facing the second housing 2. The third guide pipe 16 is connected to the second through hole 27 and does not extend into the second chamber 5.

[0034] like Figure 2 , Figure 3 , Figure 5 As shown, the third guide tube 16 connects the second chamber 5 and the third chamber 6. Specifically, the third guide tube 16 and the second guide tube 15 are arranged in parallel on the same horizontal plane. The third guide tube 16 is located in the third chamber 6. One end of the third guide tube 16 is connected to the second partition 12, and the other end of the third guide tube 16 is not in contact with the first partition 11.

[0035] In this embodiment, the inlet (i.e., the first through hole 26 on the second partition 12 connecting the second guide pipe 15) and outlet (i.e., the second through hole 27 on the second partition 12 connecting the third guide pipe 16) of the second chamber 5 are designed on the same side, which can improve the sound attenuation of the second chamber 5, which is an expansion-type silencing cavity. At the same time, an arc-shaped guide plate 23 is set in the second chamber 5. Under the premise of ensuring the sound transmission loss of the expansion-type silencing cavity, the flow path is reduced and the flow direction of the refrigerant is guided, so that the refrigerant flows in from the inlet of the second chamber 5 and quickly turns back 180° to flow out from the outlet of the second chamber 5, thereby reducing pressure loss and improving efficiency.

[0036] like Figures 2 to 5As shown, a vertical fourth guide tube 24 is integrally connected to the second housing 2. The fourth guide tube 24 is located between the first slot 21 and the second slot 22, and the fourth guide tube 24 is set close to the first slot 21. After the first housing 1 and the second housing 2 are assembled, the fourth guide tube 24 can be installed in the third chamber 6, and the fourth guide tube 24 is close to the first partition 11.

[0037] In this embodiment, as Figure 2 , Figure 3 , Figure 4 As shown, the bottom end of the fourth guide pipe 24 is aligned with the extension line of the top surface of the outlet end of the third guide pipe 16 (i.e., the end away from the second partition 12). In this embodiment, the third chamber 6 is also an expansion-type silencing chamber. This embodiment forms a three-stage silencing effect of resonance, expansion, and expansion by connecting the resonant silencing chamber in series with two expansion-type silencers, thereby improving broadband sound transmission loss.

[0038] like Figure 5 As shown, the second housing 2 is an arc-shaped plate, and the side wall near the air inlet 13 is longer than the side wall that connects to the first housing 1 to form the second chamber 5.

[0039] like Figures 1 to 3 As shown, a filter screen 3 is welded at the air inlet 13. The filter screen 3 is used to filter impurities and prevent impurities from entering the cylinder of the compressor.

[0040] Example 2 This embodiment discloses a compressor, including the horizontal three-chamber intake muffler disclosed in Embodiment 1.

[0041] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A horizontally positioned three-chamber intake silencer, characterized in that, It includes a first housing and a second housing that are inserted together to form a closed structure; the first housing is connected to the air inlet and the second housing is connected to the exhaust outlet. The first housing is connected to a first partition and a second partition, which divide the closed structure into a first chamber, a second chamber, and a third chamber arranged in a horizontal direction; the third chamber is located between the first chamber and the second chamber. The first housing is provided with a horizontal first guide pipe, a second guide pipe, and a third guide pipe. The first guide pipe connects the air inlet and the first chamber, the second guide pipe connects the first chamber and the second chamber, and the third guide pipe connects the second chamber and the third chamber. An arc-shaped guide plate is connected inside the second chamber, and the arc-shaped guide plate faces the second guide pipe and the third guide pipe. The third chamber is provided with a vertical fourth guide pipe that is closely attached to the first partition. The fourth guide pipe connects the third chamber to the outlet. The extension line of the top surface of the third guide pipe is flush with the bottom end of the fourth guide pipe.

2. The horizontally positioned three-chamber intake silencer as described in claim 1, characterized in that, The second housing is connected to the first slot and the second slot at positions corresponding to the first partition and the second partition, with the first insert plate inserted into the first slot and the second insert plate inserted into the second slot.

3. A horizontally positioned three-chamber intake silencer as described in claim 2, characterized in that, A vertical fourth guide tube is integrally connected to the second housing. The fourth guide tube is located between the first slot and the second slot, and is set close to the first slot.

4. A horizontally positioned three-chamber intake silencer as described in claim 3, characterized in that, The top end of the fourth guide tube extends out of the second housing and connects to the outlet, and the extension line of the bottom end is aligned with the outlet end of the third guide tube.

5. A horizontally positioned three-chamber intake silencer as described in claim 1, characterized in that, The first housing has a sealing protrusion connected to its four edges, and the second housing has a protrusion groove connected to its four edges. The sealing protrusion is engaged with the protrusion groove to form a seal.

6. A horizontally positioned three-chamber intake silencer as described in claim 1, characterized in that, The first guide tube is connected to the side wall of the first chamber. One end of the first guide tube extends out of the first housing and connects to the air inlet. A filter screen is installed at the air inlet. The other end extends into the first chamber without contacting the first partition. The first partition has a resonance hole at the position corresponding to the first guide tube.

7. A horizontally positioned three-chamber intake silencer as described in claim 1, characterized in that, The second partition has a first through hole, one end of the second guide tube is connected to the first chamber through a resonance hole, and the other end is connected to the second chamber through the first through hole; the second guide tube and the first guide tube are arranged coaxially.

8. A horizontally positioned three-chamber intake silencer as described in claim 7, characterized in that, The second partition also has a second through hole, which is located on the side of the first through hole facing the second housing.

9. A horizontally positioned three-chamber intake silencer as described in claim 8, characterized in that, The third guide tube is located in the third chamber. One end of the third guide tube is connected to the second through hole of the second partition, and the other end is not in contact with the first partition. The third guide tube and the second guide tube are arranged in parallel on the same horizontal plane.

10. A compressor, characterized in that, Including a horizontally positioned three-chamber intake silencer as described in any one of claims 1-9.

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