Compressor silencer, compressor and refrigeration equipment

Abstract

The invention provides a compressor silencer, a compressor and refrigeration equipment. The compressor silencer comprises a first silencing cavity and a second silencing cavity, the air inlet channel is communicated with the first silencing cavity; a second silencing cavity; the air outlet channel is communicated with the second silencing cavity; and one end of the communicating pipe communicates with the interior of the first silencing cavity, the other end of the communicating pipe communicates with the interior of the second silencing cavity, and a plurality of first flow guide ribs are arranged on the inner wall of the communicating pipe and arranged in the circumferential direction of the communicating pipe at intervals.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and in particular to a compressor muffler, a compressor, and a refrigeration device. Background Art

[0002] In the related art, the wall surface of the internal flow channel of the compressor suction muffler is usually a smooth structure. After the air flow enters the flow channel through the irregular structure, it is easy to generate large vortices at the air outlet, thereby generating large aerodynamic noise.

[0003] Therefore, how to improve the noise reduction effect of the compressor muffler has become an urgent problem to be solved. Summary of the Invention

[0004] This application aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, a first aspect of the present application is to provide a compressor silencer.

[0006] A second aspect of the present application is to provide a compressor.

[0007] A third aspect of the present application is to provide a refrigeration device.

[0008] The technical solution of the first aspect of the present application proposes a compressor muffler, comprising: a first muffler chamber; an air inlet channel connected to the first muffler chamber; a second muffler chamber; an air outlet channel connected to the second muffler chamber; a connecting pipe, one end of the connecting pipe being connected to the first muffler chamber, and the other end of the connecting pipe being connected to the second muffler chamber, a plurality of first guide ribs being provided on the inner wall of the connecting pipe, and the plurality of first guide ribs being arranged at intervals along the circumference of the connecting pipe.

[0009] The compressor silencer proposed in the present application includes two silencer chambers and a connecting pipe connecting the two silencer chambers. When the compressor is working, the airflow to be compressed (such as refrigerant, air, etc.) can enter the first silencer chamber through the air inlet channel, and enter the connecting pipe after being silenced in the first silencer chamber, and then enter the second silencer chamber through the connecting pipe, and be discharged from the air outlet channel after being silenced in the second silencer chamber. This type of compressor silencer can silence the airflow, thereby reducing the noise generated when the compressor is working. At the same time, this structure, since a plurality of first guide ribs are provided on the inner wall of the connecting pipe, the airflow can flow along the first guide ribs when passing through the connecting pipe, that is, the airflow can be guided by the first guide ribs, thereby guiding the airflow to flow smoothly along a preset trajectory, thereby avoiding the formation of vortices in the noise airflow at the outlet, thereby improving the silencer effect of the silencer on the airflow, thereby reducing the noise of the compressor.

[0010] Optionally, there are multiple first guide ribs, each evenly spaced along the circumference of the air outlet channel, to provide a smoother exhaust flow. The shapes of the first guide ribs include triangular, arc-shaped, trapezoidal, etc. The number of first guide ribs is generally 10 or more.

[0011] Optionally, the first guide rib is serrated.

[0012] Optionally, a chamfer is provided at the outlet of the air outlet channel so that the airflow can be discharged more smoothly.

[0013] Optionally, the connecting pipe includes: a first pipe, located in the first silencing chamber; a second pipe, located in the second silencing chamber, connected to the first pipe; the inlet of the first pipe is arranged toward the air inlet channel, and a first distance is set between the inlet and the air inlet channel; and / or the outlet of the second pipe is arranged toward the air outlet channel, and a second distance is set between the outlet and the air outlet channel.

[0014] In this technical solution, the connecting pipe includes two pipelines, each extending into the two muffler chambers. The inlet of the first pipeline is arranged toward the air inlet channel, allowing some airflow to enter the first pipeline directly from the air inlet channel without passing through the first muffler chamber. The outlet of the second pipeline is arranged toward the air outlet channel, allowing some airflow to enter the air inlet channel directly from the second pipeline without passing through the second muffler chamber. This improves the continuity of the airflow and reduces the resistance of the airflow, thereby improving the suction efficiency of the entire compressor.

[0015] In addition, the first distance between the inlet of the first pipeline and the air inlet channel can ensure that part of the airflow can enter the first silencer chamber, thereby ensuring that the airflow will not all directly enter the first pipeline from the air inlet channel. The second distance between the outlet of the second pipeline and the air outlet channel can ensure that part of the airflow can enter the second silencer chamber, thereby ensuring that the airflow will not all be directly discharged directly through the second pipeline and the air outlet channel. With this arrangement, part of the airflow can be fully silenced by the first silencer chamber and the second silencer chamber, thereby ensuring the silencer effect of the compressor and reducing the noise of the compressor. In short, in this solution, part of the airflow is silenced without passing through the silencer chamber, while part of the airflow is silenced by passing through the silencer chamber, thereby ensuring the continuity of the airflow, ensuring the suction efficiency, and improving the energy efficiency of the compressor, while also improving the silencer effect of the compressor and reducing the noise of the compressor.

[0016] Optionally, the connecting pipe also includes a partition, which is arranged at the connection between the first pipeline and the second pipeline, and the compressor muffler also includes: a first shell, which is arranged on one side of the partition and forms a first muffler chamber with the partition, and the air inlet channel is arranged on the first shell; a second shell, which is arranged on the other side of the partition and forms a second muffler chamber with the partition, and the air outlet channel is arranged on the second shell.

[0017] In this technical solution, the compressor muffler comprises two shells: a first shell and a second shell. A partition is provided on the connecting pipe. The partition and the two shells enclose two muffler chambers. This structure, since both muffler chambers are enclosed by the partition, simplifies the muffler's structure. Furthermore, this structure allows the two muffler chambers to be closer together, shortening the airflow path and reducing airflow resistance. This increases airflow velocity and ensures the compressor's suction efficiency.

[0018] Furthermore, the first shell and the second shell are arranged up and down along the height direction of the compressor, wherein the first shell is located above the second shell.

[0019] Optionally, the central axis of the air outlet channel is parallel to the central axis of the second pipeline.

[0020] This setting can make the airflow path as short as possible, thereby reducing the resistance of the airflow, increasing the speed of the airflow, and ensuring the suction efficiency of the compressor.

[0021] Optionally, the first pipeline includes a first pipe section arranged close to the air intake channel, and a central axis of the first pipe section is parallel to a central axis of the air intake channel.

[0022] This setting can make the airflow path as short as possible, thereby reducing the resistance of the airflow, increasing the speed of the airflow, and ensuring the suction efficiency of the compressor.

[0023] Optionally, the first pipeline includes a second pipe section disposed adjacent to the second muffler chamber, and the second pipe section and the second pipeline are disposed in the same direction. That is, the second pipe section and the second pipeline are disposed in a straight line, thereby minimizing the airflow path, thereby reducing airflow resistance, increasing airflow velocity, and ensuring suction efficiency of the compressor.

[0024] Optionally, the first pipe is arranged in an L-shape, with one end of the first pipe facing the air inlet channel and the other end of the first pipe aligned with and connected to the second pipe. This arrangement allows the airflow to reverse direction within the connecting pipe, thereby appropriately reducing the airflow velocity within the connecting pipe and preventing excessive airflow. This improves the muffler effect of the connecting pipe on the airflow, thereby reducing the overall noise of the compressor.

[0025] Optionally, a silencer hole is provided on the second pipeline. By providing the silencer hole, the airflow in the second pipeline can be silenced, thereby improving the silencer effect on the airflow.

[0026] Optionally, there are one, two, or more silencer holes. When there are two silencer holes, the two silencer holes are arranged oppositely on the two side walls of the second pipeline.

[0027] Optionally, a second guide rib is provided in the air outlet channel. The second guide rib guides the air flow to flow out smoothly and orderly, thereby preventing the air flow from eddying at the outlet and causing a loud noise.

[0028] Optionally, there are multiple second guide ribs, each evenly spaced along the circumference of the air outlet channel, to provide a smoother exhaust flow. The second guide ribs may have a triangular, arc-shaped, trapezoidal, or other shape. The number of second guide ribs is generally 10 or more.

[0029] Optionally, the second guide rib is serrated.

[0030] Optionally, the opening area of ​​the air intake passage gradually increases from the inlet to the outlet of the air intake passage, so that the air flow can enter the muffler more conveniently and quickly, thereby ensuring the suction capacity of the muffler and thus ensuring the suction efficiency of the compressor.

[0031] Optionally, the air inlet channel is arranged along the first direction, the air outlet channel is arranged along the second direction, the first direction and the second direction are arranged at a preset angle, and the preset angle is greater than 60° and less than 120°.

[0032] In this technical solution, the air inlet and outlet directions of the entire silencer are set at an angle, with the optimal angle being around 90°. This can change the flow direction of the airflow, allowing the airflow to stay in the silencer for a longer period of time for silencing, thereby ensuring the silencer effect of the silencer and achieving compatibility between noise reduction and air intake.

[0033] Exemplarily, the air inlet channel and the air outlet channel are disposed on different sides of the muffler and are not disposed opposite each other. For example, the air inlet channel is disposed on a first side of the muffler and the air outlet channel is disposed on a second side of the muffler, and the first and second sides of the muffler are not disposed opposite each other.

[0034] Optionally, a first oil leakage hole is provided on the partition. The diameter of the first oil leakage hole is generally 0.5 mm to 2 mm. Optionally, two second oil leakage holes are provided in the lower portion of the first shell, and the diameter is generally 0.5 mm to 2 mm. The oil leakage holes can be provided to drain lubricating oil that enters the silencer chamber with the airflow.

[0035] The technical solution of the second aspect of the present application proposes a compressor, including the compressor muffler proposed by the technical solution of the first aspect.

[0036] The compressor proposed according to the technical solution of the present application includes the compressor silencer proposed in the technical solution of the first aspect. Therefore, the compressor has all the beneficial effects of the compressor silencer proposed in the technical solution of the first aspect, which will not be repeated here.

[0037] Among them, the compressor is a reciprocating compressor.

[0038] The technical solution of the third aspect of the present application proposes a refrigeration device, including the compressor proposed by the technical solution of the second aspect or the compressor muffler proposed by the technical solution of the first aspect.

[0039] The refrigeration device proposed according to the technical solution of this application includes the compressor proposed in the technical solution of the second aspect or the compressor muffler proposed in the technical solution of the first aspect. Therefore, the refrigeration device has all the beneficial effects of the above compressor or the above compressor muffler, which will not be described in detail here.

[0040] Among them, refrigeration equipment includes refrigerators, air conditioners, freezers and other products.

[0041] Additional aspects and advantages of the present application will become apparent in the following description or may be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0043] Figure 1 One of the structural schematic diagrams of the compressor muffler in the embodiment of the present application is shown;

[0044] Figure 2 The second structural diagram of the compressor muffler in the embodiment of the present application is shown;

[0045] Figure 3 The third structural diagram of the compressor muffler in the embodiment of the present application is shown;

[0046] Figure 4 FIG4 shows a fourth structural diagram of a compressor muffler in an embodiment of the present application;

[0047] Figure 5 FIG5 shows a fifth structural diagram of a compressor muffler in an embodiment of the present application;

[0048] Figure 6 FIG6 shows a sixth structural diagram of a compressor muffler in an embodiment of the present application;

[0049] Figure 7 FIG7 shows a seventh structural diagram of a compressor muffler in an embodiment of the present application;

[0050] Figure 8 A schematic diagram showing the internal structure of the connecting pipe and the air outlet passage of the compressor muffler in an embodiment of the present application is shown;

[0051] Figure 9 One of the cross-sectional schematic diagrams of the guide ribs of the compressor muffler in the embodiment of the present application is shown;

[0052] Figure 10 FIG2 shows a second cross-sectional schematic diagram of the guide rib of the compressor muffler in an embodiment of the present application;

[0053] Figure 11 The third cross-sectional schematic diagram of the guide rib of the compressor muffler in the embodiment of the present application is shown.

[0054] Reference numerals:

[0055] 1 first muffler chamber, 2 air inlet channel, 3 second muffler chamber, 4 air outlet channel, 40 second guide rib, 5 connecting pipe, 50 first guide rib, 52 first pipeline, 522 first pipe section, 524 second pipe section, 54 second pipeline, 542 muffler hole, 56 partition, 562 first oil leakage hole, 6 first shell, 62 second oil leakage hole, 7 second shell. DETAILED DESCRIPTION

[0056] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0057] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0058] Refer to the following Figures 1 to 11 A compressor muffler provided according to some embodiments of the present application is described.

[0059] like Figures 1 to 7 As shown, an embodiment of the first aspect of the present application proposes a compressor muffler, including a first muffler chamber 1, an air inlet channel 2, a second muffler chamber 3, an air outlet channel 4 and a connecting pipe 5.

[0060] The first silencing chamber 1 is connected to the first silencing chamber 1. The air outlet channel 4 is connected to the second silencing chamber 3. A communication passage is provided within the communication pipe 5. One end of the communication pipe 5 is connected to the first silencing chamber 1, and the other end of the communication pipe 5 is connected to the second silencing chamber 3. A plurality of first flow guiding ribs 50 are provided on the inner wall of the communication pipe 5. The plurality of first flow guiding ribs 50 are spaced apart along the circumference of the communication pipe 5.

[0061] The compressor silencer proposed in the present application includes two silencer chambers and a connecting pipe 5 connecting the two silencer chambers. When the compressor is working, the airflow to be compressed (such as refrigerant, air, etc.) can enter the first silencer chamber 1 through the air inlet channel 2, and enter the connecting pipe 5 after being silenced in the first silencer chamber 1, and then enter the second silencer chamber 3 through the connecting pipe 5, and be discharged from the air outlet channel 4 after being silenced in the second silencer chamber 3. This type of compressor silencer can silence the airflow, thereby reducing the noise generated when the compressor is working. At the same time, this structure, since a plurality of first guide ribs 50 are provided on the inner wall of the connecting pipe 5, when the airflow passes through the connecting pipe 5, it can flow along the first guide ribs 50, that is, the airflow can be guided by the first guide ribs 50, thereby guiding the airflow to flow smoothly along the preset trajectory, thereby avoiding the formation of vortices in the noise airflow at the outlet, thereby improving the silencer effect on the airflow, thereby reducing the noise of the compressor.

[0062] in, Figure 4 、 Figure 5 and Figure 6 These are perspective structural diagrams of a compressor muffler according to an embodiment of the present application. In order to see the internal structure of the compressor muffler, these three structural diagrams are processed for perspective display.

[0063] Furthermore, by providing the first guide rib 50 on the inner wall of the connecting pipe, the internal space of the connecting pipe is not excessively occupied, thereby ensuring a normal flow area of ​​the connecting pipe 5 and the suction efficiency of the compressor. Of course, for the sole purpose of forming a guide channel, a partition plate 56 or a guide plate can also be provided within the connecting pipe 5. However, this approach would complicate the structure of the connecting pipe and significantly reduce the internal conduction area of ​​the connecting pipe 5, thereby lowering the suction efficiency of the compressor.

[0064] Alternatively, as Figure 8 As shown, there are multiple first guide ribs 50. These multiple first guide ribs 50 are evenly spaced along the circumference of the air outlet channel 4 to provide a smoother exhaust flow. The shapes of the first guide ribs 50 include triangles, arcs, trapezoids, and the like. The number of first guide ribs 50 is generally 10 or more.

[0065] Optionally, the first guide rib 50 is serrated.

[0066] Optionally, a chamfer is provided at the outlet of the air outlet channel so that the airflow can be discharged more smoothly.

[0067] Alternatively, as Figure 3 and Figure 5As shown, the connecting pipe 5 includes a first pipe 52 and a second pipe 54. The first pipe 52 is located in the first muffler chamber 1. The second pipe 54 is located in the second muffler chamber 3 and is connected to the first pipe 52. The inlet of the first pipe 52 is arranged toward the air inlet channel 2 and is provided with a first distance from the air inlet channel 2. The outlet of the second pipe 54 is arranged toward the air outlet channel 4 and is provided with a second distance from the air outlet channel 4.

[0068] In this embodiment, the connecting pipe 5 includes two pipes, each extending into the two muffler chambers. The inlet of the first pipe 52 is arranged toward the air inlet passage 2, allowing some airflow to enter the first pipe 52 directly from the air inlet passage 2 without passing through the first muffler chamber 1. The outlet of the second pipe 54 is arranged toward the air outlet passage 4, allowing some airflow to enter the air inlet passage 2 directly from the second pipe 54 without passing through the second muffler chamber 3. This improves the continuity of the airflow and reduces the resistance of the airflow, thereby improving the suction efficiency of the entire compressor.

[0069] In addition, if Figure 1 As shown, the first distance between the inlet of the first pipe 52 and the air inlet channel 2 can ensure that part of the airflow can enter the first silencer chamber 1, thereby ensuring that the airflow will not all directly enter the first pipe 52 from the air inlet channel 2. The second distance between the outlet of the second pipe 54 and the air outlet channel 4 can ensure that part of the airflow can enter the second silencer chamber 3, thereby ensuring that the airflow will not all be directly discharged through the second pipe 54 and the air outlet channel 4. With this arrangement, part of the airflow can be fully silenced by the first silencer chamber 1 and the second silencer chamber 3, thereby ensuring the silencer effect of the compressor and reducing the noise of the compressor. In short, in this solution, part of the airflow is silenced without passing through the silencer chamber, while part of the airflow is silenced by passing through the silencer chamber, thereby ensuring the continuity of the airflow, ensuring the suction efficiency, improving the energy efficiency of the compressor, and improving the silencer effect of the compressor and reducing the noise of the compressor.

[0070] Alternatively, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the connecting pipe 5 also includes a partition 56, which is arranged at the connection between the first pipeline 52 and the second pipeline 54. The compressor muffler also includes a first shell 6 and a second shell 7. The first shell 6 is arranged on one side of the partition 56 and encloses a first muffler chamber 1 with the partition 56. The air inlet channel 2 is arranged on the first shell 6. The second shell 7 is arranged on the other side of the partition 56 and encloses a second muffler chamber 3 with the partition 56. The air outlet channel 4 is arranged on the second shell 7.

[0071] In this embodiment, the compressor muffler comprises two housings, namely a first housing 6 and a second housing 7. A partition 56 is provided on the connecting pipe 5. The partition 56 and the two housings form two muffler chambers. This structure, since both muffler chambers are enclosed by the partition 56, simplifies the structure of the muffler. Furthermore, this structure allows the two muffler chambers to be closer together, shortening the airflow path and reducing airflow resistance, thereby increasing airflow velocity and ensuring the compressor's suction efficiency.

[0072] Furthermore, the first shell 6 and the second shell 7 are arranged up and down along the height direction of the compressor, wherein the first shell 6 is located above the second shell 7 .

[0073] Alternatively, as Figure 1 、 Figure 2 and Figure 4 As shown, the central axis of the air outlet channel 4 is parallel to the central axis of the second pipeline 54 .

[0074] This setting can make the airflow path as short as possible, thereby reducing the resistance of the airflow, increasing the speed of the airflow, and ensuring the suction efficiency of the compressor.

[0075] Alternatively, as Figure 1 、 Figure 2 and Figure 4 As shown, the first pipeline 52 includes a first pipe section 522 disposed near the air intake passage 2. The central axis of the first pipe section 522 is parallel to the central axis of the air intake passage 2.

[0076] This setting can make the airflow path as short as possible, thereby reducing the resistance of the airflow, increasing the speed of the airflow, and ensuring the suction efficiency of the compressor.

[0077] Alternatively, as Figure 1 、 Figure 2 and Figure 4 As shown, the first pipe 52 includes a second pipe section 524 disposed near the second muffler chamber 3. The second pipe section 524 and the second pipe 54 are disposed in the same direction. That is, the second pipe section 524 and the second pipe 54 are disposed along a straight line, thereby minimizing the airflow path, thereby reducing airflow resistance, increasing airflow speed, and ensuring the suction efficiency of the compressor.

[0078] Alternatively, as Figure 4 、 Figure 5 and Figure 6As shown, the first pipe 52 is arranged in an L-shape. One end of the first pipe 52 is arranged toward the air intake passage 2, and the other end of the first pipe 52 is aligned with and connected to the second pipe 54. This arrangement allows the airflow to reverse direction within the connecting pipe 5, thereby appropriately reducing the airflow velocity within the connecting pipe 5 and preventing excessive airflow. This improves the silencing effect of the connecting pipe 5 on the airflow, thereby reducing the overall noise of the compressor.

[0079] Alternatively, as Figure 3 and Figure 5 As shown, a silencer hole 542 is provided on the second pipe 54. By providing the silencer hole 542, the airflow in the second pipe 54 can be silenced, thereby improving the silencer effect on the airflow.

[0080] Optionally, there are one, two, or more silencer holes 542 . When there are two silencer holes 542 , the two silencer holes 542 are disposed on two side walls of the second pipe 54 opposite to each other.

[0081] Alternatively, as Figure 1 、 Figure 2 and Figure 4 As shown, a second guide rib 40 is provided in the air outlet channel 4. Through the guidance of the second guide rib 40, the air flow can be made to flow out smoothly and orderly, thereby avoiding the occurrence of vortex flow at the outlet and causing a large noise.

[0082] Optionally, there are multiple second guide ribs 40 , and the multiple second guide ribs 40 are evenly spaced along the circumference of the air outlet channel 4 , so that the exhaust air flow can be more stable.

[0083] The shape of the second guide rib 40 includes a triangle (such as Figure 9 As shown), arc shape (as shown), Figure 10 As shown), trapezoidal (as Figure 11 The number of the second guide ribs 40 is generally more than 10.

[0084] Optionally, the second guide rib 40 is serrated.

[0085] Optionally, the first guide rib 50 or the second guide rib 40 is triangular or trapezoidal. Figure 8 As shown, the two side surfaces of the first guide rib 50 and / or the second guide rib 40 are arranged at an angle γ. Optionally, the angle γ is about 10°.

[0086] Alternatively, as Figure 1 、 Figure 3 and Figure 4As shown, the opening area of ​​the intake channel 2 gradually increases from the inlet of the intake channel 2 to the outlet of the intake channel 2. This allows the airflow to enter the muffler more conveniently and quickly, thereby ensuring the suction capacity of the muffler and thus ensuring the suction efficiency of the compressor.

[0087] Alternatively, as Figure 1 、 Figure 3 and Figure 4 As shown, the air inlet channel 2 is arranged along the first direction, and the air outlet channel 4 is arranged along the second direction. The first direction and the second direction are arranged at a preset angle, and the preset angle is greater than 60° and less than 120°.

[0088] In this embodiment, the air inlet direction and the air outlet direction of the entire silencer are set at an angle, and the optimal angle is about 90°, so as to change the flow direction of the airflow, so that the airflow can stay in the silencer for a longer time for silencing, thereby ensuring the silencer effect of the silencer and achieving compatibility between noise reduction and air intake.

[0089] Exemplarily, the air inlet passage 2 and the air outlet passage 4 are disposed on different sides of the muffler, and are not disposed opposite each other. For example, the air inlet passage 2 is disposed on a first side of the muffler. The air outlet passage 4 is disposed on a second side of the muffler, and the first and second sides of the muffler are not disposed opposite each other.

[0090] Alternatively, as Figure 6 As shown, a first oil leakage hole 562 is provided on the partition plate 56. The diameter of the first oil leakage hole 562 is generally 0.5 mm to 2 mm.

[0091] Alternatively, as Figure 1 、 Figure 3 and Figure 4 As shown, two second oil leakage holes 62 are provided at the lower part of the first housing 6, with a diameter of generally 0.5 mm to 2 mm. The oil leakage holes can be provided to discharge the lubricating oil that enters the muffler cavity along with the air flow.

[0092] An embodiment of the second aspect of the present application proposes a compressor (not shown in the figures), including the compressor muffler proposed in the embodiment of the first aspect.

[0093] According to the compressor proposed in the embodiment of the present application, since it includes the compressor silencer proposed in the embodiment of the first aspect, the compressor has all the beneficial effects of the compressor silencer proposed in the embodiment of the first aspect, which will not be repeated here.

[0094] Among them, the compressor is a reciprocating compressor.

[0095] An embodiment of the third aspect of the present application proposes a refrigeration device (not shown in the figure), including the compressor proposed in the embodiment of the second aspect or the compressor muffler proposed in the embodiment of the first aspect.

[0096] The refrigeration device according to the embodiment of the present application includes the compressor according to the embodiment of the second aspect or the compressor muffler according to the embodiment of the first aspect. Therefore, the refrigeration device has all the beneficial effects of the above compressor or the above compressor muffler, which will not be described in detail here.

[0097] Among them, refrigeration equipment includes refrigerators, air conditioners, freezers and other products.

[0098] The following takes the refrigerator compressor as an example to further introduce the compressor muffler in this application.

[0099] As an essential household appliance in daily life, people have increasingly higher requirements for the performance of refrigerators. In addition to the important freezing capacity, the comfort of refrigerators is also one of the key indicators of refrigerators. The noise value, as an important measurement parameter of comfort, has also attracted much attention.

[0100] In the related art, the wall surface of the internal flow channel of the compressor suction muffler is usually a smooth structure. After the air flow enters the flow channel through the irregular structure, it is easy to generate large vortices at the air outlet, thereby generating large aerodynamic noise.

[0101] In the related art, there are generally two types of flow channel arrangements: the first is that the air intake and outlet ports between the internal pipe structures are not connected to each other. This structure has poor airflow continuity and large airflow resistance, which will lead to reduced air intake efficiency and thus reduced compressor efficiency; the second is that the air intake and outlet ports between the internal pipe structures are connected to each other. This structure has good airflow continuity and small airflow resistance, but poor noise reduction performance, resulting in larger compressor noise.

[0102] This application proposes a suction muffler for a reciprocating compressor. A bionic sharkskin-like zigzag structure is incorporated into the muffler's flow channel to effectively reduce aerodynamic noise. Furthermore, the L-shaped intubation structure combines the advantages of both flow channel types in the aforementioned related technologies, resulting in good airflow continuity, high compressor efficiency, and excellent noise reduction performance.

[0103] like Figures 1 to 11 As shown, its specific structure is: the silencer consists of an upper shell, namely the first shell 6, a pipe structure (connecting pipe 5), and a lower shell (second shell 7). The upper shell includes an air outlet (air outlet channel 4), wherein a cylindrical flow channel structure is provided from the air outlet to the shell, and a serrated structure is evenly distributed on the inner surface of the flow channel. The number of serrations is generally more than 10, and the height and width are generally determined according to the actual effect, without specific requirements; the serration shapes include triangle, arc, and trapezoid.

[0104] The intubation assembly comprises an upper intubation (first conduit 52), a baffle 56, and a lower intubation (second conduit 54). The upper intubation is located above the baffle 56, with two muffler holes 542 located horizontally on either side. The lower intubation is not located below the baffle 56, but rather has an L-shaped structure. The upper and lower intubations are internally interconnected cylindrical flow channels, each with a uniformly distributed serration pattern on its inner surface, creating a sharkskin-like serration-like flow path. The upper outlet of the channel must be aligned with the flow channel in the upper housing. The baffle 56 also features an oil leak hole, typically 0.5 to 2 mm in diameter.

[0105] The muffler also includes a lower housing. The left side of the lower housing houses an intake pipe, whose internal flow channel aligns with the L-shaped lower inlet pipe opening. A chamfered structure is also provided at the pipe opening to better guide airflow into the flow channel. Two oil leak holes are located at the bottom of the lower housing, typically with a diameter of 0.5mm to 2mm.

[0106] In this application, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integrally connected; and "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0107] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0108] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A compressor muffler, characterized in that: include: a first muffler cavity; an air intake passage, communicating with the first muffler chamber; a second muffler chamber; an air outlet channel, communicating with the second muffler cavity; A connecting pipe, one end of which is connected to the first silencing chamber, and the other end of which is connected to the second silencing chamber, a plurality of first guide ribs are provided on the inner wall of the connecting pipe, and the plurality of first guide ribs are arranged at intervals along the circumference of the connecting pipe.

2. The compressor muffler according to claim 1, characterized in that The connecting pipe comprises: a first pipeline, located in the first muffler cavity; a second pipeline, located in the second muffler cavity and connected to the first pipeline; The inlet of the first pipeline is arranged toward the air inlet passage, and a first distance is set between the inlet of the first pipeline and the air inlet passage; and / or The outlet of the second pipeline is arranged toward the air outlet channel, and a second distance is set between the outlet of the second pipeline and the air outlet channel.

3. The compressor muffler according to claim 2, characterized in that: The connecting pipe further includes a partition plate provided at the connection between the first pipeline and the second pipeline, and the compressor muffler further includes: a first shell, disposed on one side of the partition, and forming the first muffler cavity together with the partition, and the air inlet channel is disposed on the first shell; The second shell is arranged on the other side of the partition and forms the second silencing cavity with the partition. The air outlet channel is arranged on the second shell.

4. The compressor muffler according to claim 2, characterized in that: The central axis of the air outlet channel is parallel to the central axis of the second pipeline; and / or The first pipeline includes a first pipe section arranged close to the air intake passage, and a central axis of the first pipe section is parallel to a central axis of the air intake passage.

5. The compressor muffler according to claim 2, characterized in that: The first pipeline includes a second pipe section arranged close to the second muffler chamber, and the second pipe section and the second pipeline are arranged in the same direction.

6. The compressor muffler according to claim 2, characterized in that: The first pipeline is arranged in an L shape.

7. The compressor muffler according to claim 2, characterized in that: A sound-absorbing hole is provided on the side wall of the second pipeline.

8. The compressor silencer according to any one of claims 1 to 7, characterized in that: A second guide rib is provided in the air outlet channel.

9. The compressor silencer according to any one of claims 1 to 7, characterized in that: The opening area of ​​the air intake passage gradually increases from the inlet of the air intake passage to the outlet of the air intake passage; and / or The air inlet channel is arranged along a first direction, and the air outlet channel is arranged along a second direction. The first direction and the second direction are arranged at a preset angle, and the preset angle is greater than 60° and less than 120°.

10. A compressor, characterized in that: Comprising the compressor silencer according to any one of claims 1 to 9.

11. A refrigeration device, characterized in that: include: The compressor according to claim 10; or The compressor silencer according to any one of claims 1 to 9.

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