Silencing cover, compressor and refrigeration equipment

Abstract

The invention provides a noise reduction cover, a compressor and refrigeration equipment, the noise reduction cover comprises a cover body, and the cover body is provided with a noise reduction cavity and a rotational flow channel; the air outlet is formed in the cover body, and the silencing cavity communicates with the air outlet through the rotational flow channel; at least one part of the rotational flow channel extends in the clockwise direction or the anticlockwise direction.

Description

Technical Field

[0001] The invention relates to the technical field of muffler covers, and in particular to a muffler cover, a compressor and a refrigeration device. Background Art

[0002] At present, the scroll compressors in the relevant technology are generally divided into two forms: high-pressure chamber and low-pressure chamber. In the compressor with a high-pressure chamber structure, most of the space inside the compressor is the high-pressure area, and the pump body is placed on the upper part of the compressor. After compression, the fluid is discharged from the exhaust port of the stator and directly impacts the upper cover, resulting in greater noise and vibration on the top of the compressor. Summary of the invention

[0003] The embodiments of the present invention are intended to solve at least one of the technical problems existing in the prior art.

[0004] To this end, a first aspect of an embodiment of the present invention provides a soundproof cover.

[0005] A second aspect of an embodiment of the present invention provides a compressor.

[0006] A third aspect of the embodiments of the present invention provides a refrigeration device.

[0007] In view of this, according to a first aspect of an embodiment of the present invention, a silencer hood is provided, comprising: a hood body, the hood body being provided with a silencer chamber and a swirl channel; an air outlet, arranged on the hood body, the silencer chamber being connected to the air outlet through the swirl channel; wherein at least a portion of the swirl channel extends in a clockwise direction or a counterclockwise direction.

[0008] The silencer hood provided in an embodiment of the present invention includes a hood body and an air outlet. Specifically, the hood body is provided with a silencer chamber, a swirl channel and an air outlet. Specifically, the silencer chamber is connected with the air outlet through the swirl channel, that is, after the fluid enters the silencer chamber, it flows through the swirl channel and finally is discharged from the silencer hood through the air outlet.

[0009] It can be understood that the compressor includes a stator and a rotor, the stator and the rotor cooperate to form a compression chamber, the stator is provided with an exhaust port, and the silencer cover is provided outside the exhaust port. Specifically, when the compressor is running, the compressed high-pressure fluid is discharged from the compression chamber through the exhaust port, enters the silencer chamber, flows through the swirl channel, and finally discharged through the outlet.

[0010] The compressor also includes a shell, which is provided with an exhaust chamber, and the air outlet is connected to the exhaust chamber, that is, the high-pressure fluid discharged through the air outlet enters the exhaust chamber, and is finally discharged to the outside of the shell through the exhaust pipeline on the shell.

[0011] At least a portion of the swirl channel extends in a clockwise direction, or at least a portion of the swirl channel extends in a counterclockwise direction. Thus, when the high-pressure fluid flows through the swirl channel and is discharged into the exhaust chamber through the air outlet, it can flow in the exhaust chamber in a clockwise or counterclockwise direction for a certain distance before flowing downward. In other words, the flow path of the high-pressure fluid is extended, the flow velocity of the high-pressure fluid is reduced, energy is consumed in the process, and exhaust pulsation is effectively weakened, thereby achieving the purpose of silencing and noise reduction.

[0012] In addition, since the high-pressure fluid flows through the swirl channel and is discharged into the exhaust chamber through the outlet, it can flow in the exhaust chamber in a clockwise or counterclockwise direction for a certain distance and then flow downward, it can also improve the oil separation effect, reduce the oil discharge volume, and improve the oil separation efficiency, thereby improving the energy efficiency of the compressor with the silencer cover.

[0013] It is worth noting that the number of swirl channels can be multiple, the number of air outlets can also be multiple, and each swirl channel is connected to at least one air outlet, that is, the high-pressure fluid enters the silencer cavity after being discharged from the exhaust port of the static disk, flows through multiple swirl channels respectively, and finally is discharged through multiple air outlets. Thus, while extending the flow path of the high-pressure fluid, reducing the flow rate of the fluid and thus achieving the noise reduction effect, the high-pressure fluid discharged from multiple air outlets can form a diversion and hedging in the exhaust cavity, further improving the noise reduction effect and oil separation effect of the compressor, and improving the energy efficiency of the compressor.

[0014] In addition, the high-pressure fluid enters the multiple swirl channels through the silencer chamber, that is, the high-pressure fluid is diverted, the flow direction of the airflow is changed, and the flow path of the airflow is extended, thereby achieving the purpose of silencer.

[0015] It can be understood that the extension directions of multiple swirl channels are the same, so that the high-pressure fluid discharged from multiple outlets can form a diversion and impact in the exhaust chamber, reducing the exhaust noise and exhaust pulsation during the operation of the compressor, and can also improve the oil separation effect and improve the energy efficiency of the compressor.

[0016] In addition, the soundproofing cover provided by the above technical solution of the present invention also has the following additional technical features:

[0017] In some embodiments, optionally, the number of swirl channels is at least two, and each swirl channel is connected to at least one air outlet; wherein at least two swirl channels extend in the same direction.

[0018] In this embodiment, the number of swirl channels is limited to at least two, and each swirl channel is connected to at least one air outlet, that is, the high-pressure fluid enters the silencer cavity after being discharged from the exhaust port of the static disk, flows through at least two swirl channels respectively, and finally is discharged through multiple air outlets respectively. Thus, while the flow path of the high-pressure fluid is extended, the flow rate of the fluid is reduced to achieve the noise reduction effect, the high-pressure fluid discharged from multiple air outlets can form a diversion and hedging in the exhaust cavity, further improving the noise reduction effect and oil separation effect of the compressor, and improving the energy efficiency of the compressor.

[0019] In addition, the high-pressure fluid enters at least two swirl channels through the muffler chamber, which diverts the high-pressure fluid, changes the flow direction of the airflow, and extends the flow path of the airflow, thereby achieving the purpose of muffler.

[0020] At least two swirl channels extend in the same direction, so that the high-pressure fluids discharged from multiple outlets can form diversion and impact in the exhaust chamber, reducing the exhaust noise and exhaust pulsation during the operation of the compressor, and can also improve the oil separation effect and enhance the energy efficiency of the compressor.

[0021] In some embodiments, optionally, after at least one swirl channel is rotated by a preset angle around the central axis of the cover body, it can overlap with one of the remaining swirl channels.

[0022] In this embodiment, after at least one swirl channel rotates around the central axis of the cover body by a preset angle, it can overlap with one of the remaining swirl channels, that is, at least two swirl channels not only have the same extension direction, but also have the same structure. This allows the high-pressure fluids discharged from multiple outlets to rotate along the same path in the exhaust chamber, thereby forming a split flow counter-attack, thereby reducing the exhaust noise and exhaust pulsation during the operation of the compressor, and can also improve the oil separation effect and the energy efficiency of the compressor.

[0023] Optionally, when there are two swirl channels, the preset angle may be 180°, that is, one swirl channel can overlap with another swirl channel after rotating 180°, that is, the two swirl channels are centrally symmetrically arranged about the central axis of the cover body.

[0024] Optionally, when the number of swirl channels is three, the preset angle can be 120°, that is, after a swirl channel rotates 120°, it can overlap with one of the remaining swirl channels, and then continue to rotate 120° to overlap with another swirl channel of the remaining swirl channels.

[0025] It can be understood that when the silencer cover is applied to the compressor, the central axis of the cover body is parallel to or coincides with the axis of the compressor crankshaft.

[0026] In some embodiments, optionally, the cover body includes a first cover body and a second cover body, wherein the second cover body is connected to the first cover body and is arranged with the first cover body along the height direction of the cover body, the swirl channel and the air outlet are arranged on the first cover body, the silencer chamber is arranged on the second cover body, and the second cover body is used for fixed installation.

[0027] In this embodiment, it is defined that the cover includes a first cover and a second cover. Specifically, the first cover is connected to the second cover, and the first cover and the second cover are exhausted in the height direction, and the second cover is used for fixed installation. In other words, the cover is connected to the stator of the compressor through the second cover to achieve fixed installation of the silencer cover. In other words, the first cover is arranged farther away from the stator than the second cover.

[0028] The swirl channel and the air outlet are arranged on the first cover body, and the silencer chamber is arranged on the second cover body. That is to say, the silencer chamber and the swirl channel are arranged in the height direction of the cover body, thereby extending the flow path of the high-pressure fluid and reducing the flow speed of the high-pressure fluid. Energy is consumed in the process, and the exhaust pulsation is effectively weakened, thereby achieving the purpose of silencing and noise reduction.

[0029] In some embodiments, optionally, the first cover body includes a top cover body and a side cover body connected to each other, the top cover body and the side cover body are combined to form a swirl channel, the top cover body and the second cover body are arranged opposite to each other, and the air outlet is arranged on the side cover body.

[0030] In this embodiment, it is defined that the first cover body includes a top cover body and a side cover body. Specifically, the top cover body is connected to the side cover body, and the top cover body is opposite to the second cover body. The top cover body and the side cover body enclose a swirl channel, and the air outlet is arranged on the side cover body.

[0031] That is to say, the high-pressure airflow is discharged from the exhaust port into the silencer chamber, and enters the swirl channel through the swirl channel, and finally is discharged into the exhaust chamber through the air outlet located on the side cover body, which can further extend the flow path of the high-pressure fluid, increase the number of reflections of the fluid in the swirl channel, and improve the sound insulation and oil separation effects.

[0032] In some embodiments, optionally, the side cover body includes a first cavity wall and a second cavity wall, the first cavity wall is arranged opposite to the second cavity wall; at least a portion of the first cavity wall is constructed as a first arc-shaped wall; and / or at least a portion of the second cavity wall is constructed as a second arc-shaped wall.

[0033] In this embodiment, it is defined that the side cover body includes a first cavity wall and a second cavity wall. Specifically, the first cavity wall and the second cavity wall are arranged opposite to each other. It can be understood that the first cavity wall and the second cavity wall are both inner walls of the side cover body.

[0034] Optionally, at least a portion of the first cavity wall is configured as a first arc-shaped wall.

[0035] Alternatively, at least a portion of the second cavity wall is configured as a second arc-shaped wall.

[0036] Alternatively, at least a portion of the first cavity wall is configured as a first arc-shaped wall, and at least a portion of the second cavity wall is configured as a second arc-shaped wall.

[0037] By setting at least a portion of the first cavity wall and / or at least a portion of the second cavity wall as an arc-shaped wall, the side cover body and the top cover body form a swirl channel that can extend in a clockwise or counterclockwise direction. When the high-pressure fluid flows through the swirl channel and is discharged into the exhaust cavity through the air outlet, it can flow in the exhaust cavity in a clockwise or counterclockwise direction for a certain distance and then flow downward. In other words, the flow path of the high-pressure fluid is extended, the flow speed of the high-pressure fluid is reduced, energy is consumed in the process, and exhaust pulsation is effectively weakened, thereby achieving the purpose of silencing and noise reduction.

[0038] In addition, since the high-pressure fluid flows through the swirl channel and is discharged into the exhaust chamber through the outlet, it can flow in the exhaust chamber in a clockwise or counterclockwise direction for a certain distance and then flow downward, it can also improve the oil separation effect, reduce the oil discharge volume, and improve the oil separation efficiency, thereby improving the energy efficiency of the compressor with the silencer cover.

[0039] In some embodiments, optionally, the first arc-shaped wall includes a first arc-shaped segment and a second arc-shaped segment connected to each other, and the centers of the first arc-shaped segment and the second arc-shaped segment are respectively located on both sides of the first arc-shaped wall; wherein, after the second arc-shaped wall rotates 180° around the central axis of the cover body, it can coincide with the first arc-shaped wall.

[0040] In this embodiment, the first arcuate wall includes a first arcuate segment and a second arcuate segment. Specifically, the first arcuate segment and the second arcuate segment are connected, and the center of the first arcuate segment and the center of the second arcuate segment are respectively located on both sides of the first arcuate wall.

[0041] Moreover, after the second arc-shaped wall rotates 180° around the central axis of the cover body, it can overlap with the first arc-shaped wall. In other words, the second arc-shaped wall and the first arc-shaped wall are centrally symmetrically arranged about the central axis of the cover body.

[0042] Thereby, the first curved wall, the second curved wall and the top cover body form two swirl channels extending in the same direction, so that the high-pressure fluid discharged from the two outlets can form a diversion and impact in the exhaust chamber, thereby reducing the exhaust noise and exhaust pulsation during the operation of the compressor, and can also improve the oil separation effect and enhance the energy efficiency of the compressor.

[0043] In some embodiments, optionally, the second arc segment is tangent to the first arc segment.

[0044] In this embodiment, the first arc segment is limited to be tangent to the second arc segment, so that the two swirl channels with the same extension direction formed by the first arc wall and the second arc wall have a smooth transition at the connection, promoting the separation of the high-pressure fluid flowing out of the silencer chamber to the swirl channels on both sides, thereby improving the diversion effect.

[0045] Moreover, the high-pressure fluids discharged from the two outlets can form a diversion and counteraction in the exhaust chamber, thereby reducing the exhaust noise and exhaust pulsation during the operation of the compressor, and can also improve the oil separation effect and enhance the energy efficiency of the compressor.

[0046] In some embodiments, optionally, the second cover body is provided with a flow opening, and the muffler chamber is connected with the swirl channel through the flow opening; wherein the cross-sectional area of ​​the flow opening is smaller than the cross-sectional area of ​​the swirl channel.

[0047] In this embodiment, it is defined that the second cover body is provided with a flow port. Specifically, the silencer chamber and the swirl channel are connected through the flow port. That is to say, after the high-pressure fluid discharged from the exhaust port of the compressor stator enters the silencer chamber, it enters the swirl channel through the flow port, flows through the swirl channel, and is discharged through the outlet.

[0048] The cross-sectional area of ​​the flow port is smaller than the cross-sectional area of ​​the swirl channel, so that the high-pressure fluid entering the silencer chamber can undergo a cross-sectional mutation when entering the swirl channel through the flow port, thereby changing the fluid flow path, reducing the fluid flow velocity, thereby reducing exhaust pulsation, weakening exhaust vibration, and further improving the noise reduction and oil separation effects of the compressor with the silencer cover.

[0049] In addition, since at least a portion of the swirl channel extends in a clockwise direction, or at least a portion of the swirl channel extends in a counterclockwise direction, when the high-pressure fluid flows through the swirl channel and is discharged into the exhaust chamber through the air outlet, it can flow in the exhaust chamber in a clockwise or counterclockwise direction for a certain distance and then flow downward, that is, the flow path of the high-pressure fluid is extended, the flow speed of the high-pressure fluid is reduced, energy is consumed in the process, and exhaust pulsation is effectively weakened, thereby achieving the purpose of silencing and noise reduction.

[0050] Moreover, since the high-pressure fluid flows through the swirl channel and is discharged into the exhaust chamber through the outlet, it can flow in the exhaust chamber in a clockwise or counterclockwise direction for a certain distance and then flow downward, it can also improve the oil separation effect, reduce the oil discharge volume, and improve the oil separation efficiency, thereby improving the energy efficiency of the compressor with the silencer cover.

[0051] In some embodiments, optionally, the cover body is further provided with at least one notch, and the at least one notch is connected to the silencing chamber.

[0052] In this embodiment, it is defined that the cover body is further provided with at least one notch, and specifically, at least one notch is connected to the muffler chamber. It is understandable that when the high-pressure fluid flows in the muffler chamber and the swirl channel, partial oil-gas separation will also occur, so the separated lubricating oil can flow out of the muffler chamber through at least one notch, avoiding the accumulation of too much lubricating oil in the muffler chamber and affecting the exhaust of the compressor, and further improving the stability and reliability of the compressor during operation.

[0053] It can be understood that a guide port connected to the exhaust chamber is provided on the stator disk, and the lubricating oil discharged from at least one notch can flow to the oil pool at the bottom of the compressor through the guide port.

[0054] In some embodiments, optionally, a portion of the cover body is bent toward a side away from the silencer chamber to form at least one flange, and the at least one flange is used for fixed installation.

[0055] In this embodiment, a portion of the cover is bent toward a side away from the muffler chamber to form at least one flange, that is, a portion of the cover is bent outward to form a flange. The flange is used for fixed installation, and specifically, the muffler cover is connected to the static disk through at least one flange.

[0056] By forming a flange on a part of the cover body, that is, at least one flange is an integral structure with the cover body, the connection strength between at least one flange and the cover body can be improved, and the installation stability of the silencer cover can be improved, thereby ensuring that the silencer cover can effectively reduce the noise of the high-pressure fluid discharged from the exhaust port, thereby improving the noise reduction effect and oil separation effect, and improving the energy efficiency of the compressor.

[0057] In some embodiments, optionally, at least one mounting hole is provided on at least one flange; a portion of the cover body is recessed toward one side of the silencer cavity to form at least one escape space, and each escape space is connected to a mounting hole.

[0058] In this embodiment, at least one mounting hole is provided on at least one flange. It is understandable that the compressor further includes at least one fastener, each fastener passing through a mounting hole and connected to the stator disk to achieve installation and fixation of the silencer cover.

[0059] It is understandable that there may be multiple mounting holes to improve the mounting stability between the silencer cover and the stator disc.

[0060] A portion of the cover body is recessed toward one side of the silencing cavity to form at least one escape space, and each escape space is connected to a mounting hole, that is, the escape space corresponds to the mounting hole one by one. Since at least one mounting hole is used for fixed installation, by providing at least one escape space, the difficulty of installing the silencing cover can be reduced and the installation efficiency can be improved.

[0061] According to a second aspect of the present invention, a compressor is provided, comprising a silencer cover as provided by any of the above technical solutions, thereby having all the beneficial technical effects of the silencer cover, which will not be repeated here.

[0062] Furthermore, the compressor also includes a shell, the shell is provided with an exhaust chamber, and the exhaust chamber is connected to the air outlet; a static plate is arranged in the shell, the static plate is provided with an exhaust port, a silencer cover is arranged on the outside of the exhaust port and is connected to the static plate, and the exhaust port is connected to the silencer chamber; a moving plate is enclosed with the static plate to form a compression chamber, and the compression chamber is connected to the exhaust port.

[0063] The compressor provided by the embodiment of the present invention includes a shell, a stator, a moving disk and a muffler cover. Specifically, the shell is provided with an exhaust cavity, the stator and the moving disk cooperate to form a compression cavity, the stator is provided with an exhaust port, the muffler cover is provided on the outside of the exhaust port and is located in the exhaust cavity, and the air outlet of the muffler cover is connected with the exhaust cavity. Specifically, when the compressor is running, the compressed high-pressure fluid is discharged from the compression cavity through the exhaust port, enters the muffler cavity, flows through the swirl channel, and finally discharged through the air outlet, enters the exhaust cavity, and finally discharged to the outside of the shell through the exhaust pipeline on the shell.

[0064] At least a portion of the swirl channel extends in a clockwise direction, or at least a portion of the swirl channel extends in a counterclockwise direction. Thus, when the high-pressure fluid flows through the swirl channel and is discharged into the exhaust chamber through the air outlet, it can flow in the exhaust chamber in a clockwise or counterclockwise direction for a certain distance before flowing downward. In other words, the flow path of the high-pressure fluid is extended, the flow velocity of the high-pressure fluid is reduced, energy is consumed in the process, and exhaust pulsation is effectively weakened, thereby achieving the purpose of silencing and noise reduction.

[0065] In addition, since the high-pressure fluid flows through the swirl channel and is discharged into the exhaust chamber through the outlet, it can flow in the exhaust chamber in a clockwise or counterclockwise direction for a certain distance and then flow downward, it can also improve the oil separation effect, reduce the oil discharge volume, and improve the oil separation efficiency, thereby improving the energy efficiency of the compressor with the silencer cover.

[0066] In addition, the compressor provided by the above technical solution of the present invention also has the following additional technical features:

[0067] In some embodiments, optionally, the distance between the inner wall of the shell in the exhaust cavity and the air outlet is smaller than a preset distance.

[0068] In this embodiment, the distance between the air outlet and the inner wall of the shell located in the exhaust chamber is smaller than the preset distance, that is, the distance between the air outlet and the inner wall of the shell is small, that is, the air outlet and the inner wall of the shell are as close as possible, so that the high-pressure fluid discharged from the air outlet can quickly reach the inner wall of the shell for oil and gas separation, thereby improving the oil and gas separation effect, and then improving the energy efficiency of the compressor.

[0069] In addition, the high-pressure airflow that quickly reaches the inner wall of the shell can flow in the exhaust chamber in a clockwise or counterclockwise direction for a certain distance and then flow downward. In other words, the flow path of the high-pressure fluid is extended and the flow speed of the high-pressure fluid is reduced. Energy is consumed in the process, effectively weakening the exhaust pulsation, thereby achieving the purpose of silencing and noise reduction.

[0070] Moreover, since the high-pressure fluid flows through the swirl channel and is discharged into the exhaust chamber through the outlet, it can flow in the exhaust chamber in a clockwise or counterclockwise direction for a certain distance and then flow downward, it can also improve the oil separation effect, reduce the oil discharge volume, and improve the oil separation efficiency, thereby improving the energy efficiency of the compressor with the silencer cover.

[0071] In some embodiments, optionally, the stator disk is provided with at least one guide port, and the at least one guide port is connected to the exhaust chamber; along the axial direction of the stator disk, the at least one guide port is staggered with the air outlet.

[0072] In this embodiment, it is defined that at least one guide port is provided on the stator disk, and at least one guide port is communicated with the exhaust chamber, that is, along the axial direction of the stator disk, at least one guide port passes through the stator disk.

[0073] Specifically, the high-pressure fluid discharged from the air outlet to the exhaust chamber flows in the exhaust chamber in a clockwise or counterclockwise direction for a certain distance, flows downward, passes through at least one guide port, and is discharged to the outside of the shell through the exhaust pipe on the shell.

[0074] Along the axial direction of the stator disk, at least one guide port is staggered with the air outlet, that is, the line connecting at least one guide port and the central axis of the stator disk forms a preset angle with the line connecting the air outlet and the central axis, so that the high-pressure fluid discharged from the air outlet can rotate a certain distance in the exhaust chamber before flowing downward, further improving the noise reduction and oil separation effects of the compressor.

[0075] Optionally, the preset angle between the line connecting at least one guide port and the central axis of the stator disk and the line connecting the air outlet and the central axis is 90°, so as to further extend the rotational diversion time of the high-pressure fluid discharged from the air outlet in the exhaust chamber, improve the sound insulation effect and oil separation effect, and thereby improve the energy efficiency of the compressor.

[0076] According to a third aspect of the present invention, a refrigeration device is provided, comprising a silencer hood as provided in the first aspect or a compressor as provided in the second aspect, and thus having all the beneficial technical effects of the silencer hood or the compressor, which will not be described in detail herein.

[0077] Additional aspects and advantages according to the present invention will be given in part in the following description, and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0079] Figure 1 A schematic structural diagram of a soundproof cover according to an embodiment of the present invention is shown;

[0080] Figure 2 A schematic structural diagram of a first cover body according to an embodiment of the present invention is shown;

[0081] Figure 3 A schematic structural diagram of a second cover body according to an embodiment of the present invention is shown;

[0082] Figure 4 One of the partial structural schematic diagrams of a compressor according to an embodiment of the present invention is shown;

[0083] Figure 5 A second schematic diagram of a partial structure of a compressor according to an embodiment of the present invention is shown;

[0084] Figure 6 A third schematic diagram of the partial structure of a compressor according to an embodiment of the present invention is shown;

[0085] Figure 7 A fourth schematic diagram of the partial structure of a compressor according to an embodiment of the present invention is shown.

[0086] in, Figures 1 to 7 The corresponding relationship between the reference numerals and the component names is as follows:

[0087] 100 silencer hood, 110 hood body, 111 first hood body, 1111 top hood body, 1112 side hood body, 112 second hood body, 120 silencer chamber, 130 swirl channel, 140 air outlet, 150 first chamber wall, 160 second chamber wall, 170 flow opening, 180 notch, 190 flange, 191 mounting hole, 210 avoidance space, 220 first arc segment, 230 second arc segment, 300 compressor, 310 shell, 311 exhaust chamber, 320 static disk, 321 exhaust port, 330 dynamic disk, 340 compression chamber, 350 guide port. DETAILED DESCRIPTION

[0088] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention 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 in the embodiments can be combined with each other without conflict.

[0089] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0090] Refer to the following Figures 1 to 7 The soundproof cover 100, the compressor 300 and the refrigeration equipment provided according to some embodiments of the present invention are described.

[0091] In one embodiment according to the present application, Figure 1 , Figure 2 and Figure 3 As shown, a silencer cover 100 is proposed, which includes: a cover body 110, the cover body 110 is provided with a silencer chamber 120 and a swirl channel 130; an air outlet 140 is provided in the cover body 110, and the silencer chamber 120 is connected to the air outlet 140 through the swirl channel 130; wherein, at least a portion of the swirl channel 130 extends in a clockwise direction or a counterclockwise direction.

[0092] The silencer hood 100 provided in the embodiment of the present invention includes a hood body 110 and an air outlet 140. Specifically, the hood body 110 is provided with a silencer chamber 120, a swirl channel 130 and an air outlet 140. Specifically, the silencer chamber 120 is connected with the air outlet 140 through the swirl channel 130, that is, after the fluid enters the silencer chamber 120, it flows through the swirl channel 130 and is finally discharged from the silencer hood 100 through the air outlet 140.

[0093] It can be understood that the compressor 300 includes a stator plate 320 and a moving plate 330, the stator plate 320 and the moving plate 330 cooperate to form a compression chamber 340, the stator plate 320 is provided with an exhaust port 321, and the muffler cover 100 is provided on the outside of the exhaust port 321. Specifically, when the compressor 300 is running, the compressed high-pressure fluid is discharged from the compression chamber 340 through the exhaust port 321, enters the muffler chamber 120, flows through the swirl channel 130, and finally discharged through the outlet 140.

[0094] The compressor 300 also includes a shell 310 , which is provided with an exhaust chamber 311 , and the air outlet 140 is connected to the exhaust chamber 311 , that is, the high-pressure fluid discharged through the air outlet 140 enters the exhaust chamber 311 , and is finally discharged to the outside of the shell 310 through the exhaust pipeline on the shell 310 .

[0095] At least a portion of the swirl channel 130 extends in the clockwise direction, or at least a portion of the swirl channel 130 extends in the counterclockwise direction. Thus, when the high-pressure fluid flows through the swirl channel 130 and is discharged into the exhaust chamber 311 through the air outlet 140, it can flow in the exhaust chamber 311 in the clockwise direction or the counterclockwise direction for a certain distance and then flow downward. In other words, the flow path of the high-pressure fluid is extended, the flow speed of the high-pressure fluid is reduced, energy is consumed in the process, and the exhaust pulsation is effectively weakened, thereby achieving the purpose of silencing and noise reduction.

[0096] In addition, since the high-pressure fluid flows through the swirl channel 130 and is discharged into the exhaust chamber 311 through the outlet 140, it can flow in the exhaust chamber 311 in a clockwise or counterclockwise direction for a certain distance and then flow downward, it can also improve the oil separation effect, reduce the oil discharge volume, and improve the oil separation efficiency, thereby improving the energy efficiency of the compressor 300 with the silencer 100.

[0097] It is worth noting that the number of the swirl channels 130 can be multiple, and the number of the air outlets 140 can also be multiple, and each swirl channel 130 is connected to at least one air outlet 140, that is, the high-pressure fluid enters the muffler chamber 120 after being discharged from the air outlet 321 of the static plate 320, flows through multiple swirl channels 130 respectively, and finally is discharged through multiple air outlets 140. Thus, while the flow path of the high-pressure fluid can be extended, the flow velocity of the fluid can be reduced, and the noise reduction effect can be achieved, the high-pressure fluid discharged from the multiple air outlets 140 can form a split flow in the exhaust chamber 311, further improving the noise reduction effect and oil separation effect of the compressor 300, and improving the energy efficiency of the compressor 300.

[0098] In addition, the high-pressure fluid enters the plurality of swirl channels 130 through the muffler chamber 120, which diverts the high-pressure fluid, changes the flow direction of the airflow, and extends the flow path of the airflow, thereby achieving the purpose of muffler.

[0099] It can be understood that the extension direction of the multiple swirl channels 130 is the same, so that the high-pressure fluid discharged from the multiple outlets 140 can form a diversion and impact in the exhaust chamber 311, thereby reducing the exhaust noise and exhaust pulsation during the operation of the compressor 300, and can also improve the oil separation effect and enhance the energy efficiency of the compressor 300.

[0100] like Figure 1 and Figure 2 As shown, in some embodiments, optionally, the number of the swirl channels 130 is at least two, and each swirl channel 130 is connected to at least one air outlet 140; wherein, the extension direction of at least two swirl channels 130 is the same.

[0101] In this embodiment, the number of swirl channels 130 is limited to at least two, and each swirl channel 130 is connected to at least one air outlet 140, that is, the high-pressure fluid is discharged from the exhaust port 321 of the static plate 320 and enters the muffler chamber 120, flows through at least two swirl channels 130 respectively, and finally is discharged through multiple air outlets 140 respectively. Thus, while the flow path of the high-pressure fluid is extended, the flow velocity of the fluid is reduced, and the noise reduction effect is achieved, the high-pressure fluid discharged from the multiple air outlets 140 can form a split flow in the exhaust chamber 311, further improving the noise reduction effect and oil separation effect of the compressor 300, and improving the energy efficiency of the compressor 300.

[0102] In addition, the high-pressure fluid enters at least two swirl channels 130 through the muffler chamber 120, which diverts the high-pressure fluid, changes the flow direction of the airflow, and extends the flow path of the airflow, thereby achieving the purpose of muffler.

[0103] At least two swirl channels 130 extend in the same direction, so that the high-pressure fluid discharged from the multiple outlets 140 can form a diversion and impact in the exhaust chamber 311, thereby reducing the exhaust noise and exhaust pulsation during the operation of the compressor 300, and can also improve the oil separation effect and enhance the energy efficiency of the compressor 300.

[0104] like Figure 1 and Figure 2 As shown, in some embodiments, optionally, after at least one swirl channel 130 is rotated by a preset angle around the central axis of the cover body 110 , it can overlap with one of the remaining swirl channels 130 .

[0105] In this embodiment, after at least one swirl channel 130 rotates around the central axis of the housing 110 by a preset angle, it can overlap with one of the remaining swirl channels 130, that is, at least two swirl channels 130 not only have the same extension direction, but also have the same structure. This allows the high-pressure fluids discharged from the multiple air outlets 140 to rotate along the same path in the exhaust chamber 311, thereby forming a split flow counterattack, thereby reducing the exhaust noise and exhaust pulsation during the operation of the compressor 300, and can also improve the oil separation effect and the energy efficiency of the compressor 300.

[0106] Optionally, when there are two swirl channels 130 , the preset angle may be 180°, that is, one swirl channel 130 can overlap with another swirl channel 130 after rotating 180°, that is, the two swirl channels 130 are symmetrically arranged about the central axis of the cover body 110 .

[0107] Optionally, when the number of swirl channels 130 is three, the preset angle can be 120°, that is, after a swirl channel 130 rotates 120°, it can overlap with one of the remaining swirl channels 130, and then continue to rotate 120° to overlap with another swirl channel 130 of the remaining swirl channels 130.

[0108] It can be understood that when the silencer cover 100 is applied to the compressor 300 , the central axis of the cover body 110 is parallel to or coincides with the axis of the crankshaft of the compressor 300 .

[0109] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, optionally, the cover body 110 includes a first cover body 111 and a second cover body 112, wherein the second cover body 112 is connected to the first cover body 111 and is arranged with the first cover body 111 along the height direction of the cover body 110, the swirl channel 130 and the air outlet 140 are provided in the first cover body 111, the silencer chamber 120 is provided in the second cover body 112, and the second cover body 112 is used for fixed installation.

[0110] In this embodiment, the cover 110 is defined to include a first cover 111 and a second cover 112. Specifically, the first cover 111 is connected to the second cover 112, and the first cover 111 and the second cover 112 are exhausted in the height direction, and the second cover 112 is used for fixed installation. In other words, the cover 110 is connected to the stator 320 of the compressor 300 through the second cover 112 to achieve fixed installation of the silencer cover 100. In other words, the first cover 111 is arranged away from the stator 320 compared to the second cover 112.

[0111] The swirl channel 130 and the air outlet 140 are arranged on the first cover body 111, and the silencing chamber 120 is arranged on the second cover body 112. That is to say, the silencing chamber 120 and the swirl channel 130 are arranged in the height direction of the cover body 110, thereby extending the flow path of the high-pressure fluid and reducing the flow speed of the high-pressure fluid. In this process, energy is consumed and the exhaust pulsation is effectively weakened, thereby achieving the purpose of silencing and noise reduction.

[0112] Optionally, the first cover body 111 and the second cover body 112 can be fixed by welding to improve the connection strength between the first cover body 111 and the second cover body 112. And by fixing by welding, the connection between the first cover body 111 and the second cover body 112 can be sealed to prevent the high-pressure airflow from leaking at the connection between the first cover body 111 and the second cover body 112, thereby ensuring the effective sound-absorbing effect of the sound-absorbing cover 100.

[0113] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, optionally, the first cover body 111 includes a connected top cover body 1111 and a side cover body 1112, the top cover body 1111 and the side cover body 1112 are enclosed to form a swirl channel 130, the top cover body 1111 and the second cover body 112 are arranged opposite to each other, and the air outlet 140 is arranged on the side cover body 1112.

[0114] In this embodiment, it is defined that the first cover body 111 includes a top cover body 1111 and a side cover body 1112. Specifically, the top cover body 1111 is connected to the side cover body 1112, and the top cover body 1111 is opposite to the second cover body 112. The top cover body 1111 and the side cover body 1112 are enclosed to form a swirl channel 130, and the air outlet 140 is arranged on the side cover body 1112.

[0115] That is to say, the high-pressure airflow is discharged from the exhaust port 321 into the silencer chamber 120, and enters the swirl channel 130 through the swirl channel 130, and is finally discharged into the exhaust chamber 311 through the air outlet 140 located on the side cover 1112, which can further extend the flow path of the high-pressure fluid, increase the number of reflections of the fluid in the swirl channel 130, and improve the sound insulation and oil separation effects.

[0116] like Figure 1 and Figure 2 As shown, in some embodiments, optionally, the side cover body 1112 includes a first cavity wall 150 and a second cavity wall 160, and the first cavity wall 150 is arranged opposite to the second cavity wall 160; at least a portion of the first cavity wall 150 is constructed as a first arc-shaped wall; and / or at least a portion of the second cavity wall 160 is constructed as a second arc-shaped wall.

[0117] In this embodiment, the side cover body 1112 is defined to include a first cavity wall 150 and a second cavity wall 160. Specifically, the first cavity wall 150 and the second cavity wall 160 are arranged opposite to each other. It can be understood that the first cavity wall 150 and the second cavity wall 160 are both inner walls of the side cover body 1112.

[0118] Optionally, at least a portion of the first cavity wall 150 is configured as a first arc-shaped wall.

[0119] Alternatively, at least a portion of the second cavity wall 160 is configured as a second arc-shaped wall.

[0120] Alternatively, at least a portion of the first cavity wall 150 is configured as a first arc-shaped wall, and at least a portion of the second cavity wall 160 is configured as a second arc-shaped wall. The configuration may be based on actual needs.

[0121] By setting at least a portion of the first cavity wall 150 and / or at least a portion of the second cavity wall 160 as an arc-shaped wall, the side cover body 1112 and the top cover body 1111 form a swirl channel 130 that can extend in a clockwise direction or a counterclockwise direction. When the high-pressure fluid flows through the swirl channel 130 and is discharged into the exhaust cavity 311 through the air outlet 140, it can flow in the exhaust cavity 311 in a clockwise direction or a counterclockwise direction for a certain distance and then flow downward. In other words, the flow path of the high-pressure fluid is extended, the flow speed of the high-pressure fluid is reduced, energy is consumed in the process, and the exhaust pulsation is effectively weakened, thereby achieving the purpose of silencing and noise reduction.

[0122] In addition, since the high-pressure fluid flows through the swirl channel 130 and is discharged into the exhaust chamber 311 through the outlet 140, it can flow in the exhaust chamber 311 in a clockwise or counterclockwise direction for a certain distance and then flow downward, it can also improve the oil separation effect, reduce the oil discharge volume, and improve the oil separation efficiency, thereby improving the energy efficiency of the compressor 300 with the silencer 100.

[0123] like Figure 2 As shown, in some embodiments, optionally, the first arcuate wall includes a connected first arcuate segment 220 and a second arcuate segment 230, and the centers of the first arcuate segment 220 and the second arcuate segment 230 are respectively located on both sides of the first arcuate wall; wherein, after the second arcuate wall rotates 180° around the central axis of the cover body 110, it can coincide with the first arcuate wall.

[0124] In this embodiment, the first arcuate wall includes a first arcuate segment 220 and a second arcuate segment 230. Specifically, the first arcuate segment 220 and the second arcuate segment 230 are connected, and the center of the first arcuate segment 220 and the center of the second arcuate segment 230 are respectively located on both sides of the first arcuate wall.

[0125] Moreover, the second arc-shaped wall can overlap with the first arc-shaped wall after rotating 180° around the central axis of the cover body 110. In other words, the second arc-shaped wall and the first arc-shaped wall are centrally symmetrically arranged about the central axis of the cover body 110.

[0126] Thereby, the first curved wall, the second curved wall and the top cover body 1111 form two swirl channels 130 with the same extension direction, so that the high-pressure fluid discharged from the two air outlets 140 can form a diversion and impact in the exhaust chamber 311, thereby reducing the exhaust noise and exhaust pulsation during the operation of the compressor 300, and can also improve the oil separation effect and enhance the energy efficiency of the compressor 300.

[0127] like Figure 2 As shown, in some embodiments, optionally, the second arc segment 230 is tangent to the first arc segment 220 .

[0128] In this embodiment, the first arc segment 220 is limited to be tangent to the second arc segment 230, so that the two swirl channels 130 with the same extension direction formed by the first arc wall and the second arc wall have a smooth transition at the connection, which promotes the separation of the high-pressure fluid flowing out of the silencer chamber 120 to the swirl channels 130 on both sides and improves the diversion effect.

[0129] Moreover, the high-pressure fluids discharged from the two air outlets 140 can form a diversion counteraction in the exhaust chamber 311, thereby reducing the exhaust noise and exhaust pulsation during the operation of the compressor 300, and can also improve the oil separation effect and enhance the energy efficiency of the compressor 300.

[0130] like Figure 3 As shown, in some embodiments, optionally, the second cover body 112 is provided with a flow port 170 , and the muffler chamber 120 is connected to the swirl channel 130 through the flow port 170 ; wherein the cross-sectional area of ​​the flow port 170 is smaller than the cross-sectional area of ​​the swirl channel 130 .

[0131] In this embodiment, it is defined that the second cover body 112 is provided with a flow port 170. Specifically, the silencer chamber 120 is connected to the swirl channel 130 through the flow port 170. That is to say, the high-pressure fluid discharged from the exhaust port 321 of the stator 320 of the compressor 300 enters the silencer chamber 120, enters the swirl channel 130 through the flow port 170, and is discharged through the outlet 140 after flowing through the swirl channel 130.

[0132] The cross-sectional area of ​​the flow port 170 is smaller than the cross-sectional area of ​​the swirl channel 130, so that the high-pressure fluid entering the silencer chamber 120 can undergo a sudden change in cross-section when entering the swirl channel 130 through the flow port 170, thereby changing the fluid flow path and reducing the fluid flow velocity, thereby reducing exhaust pulsation and weakening exhaust vibration, further improving the noise reduction effect and oil separation effect of the compressor 300 having the silencer cover 100.

[0133] In addition, since at least a portion of the swirl channel 130 extends in the clockwise direction, or at least a portion of the swirl channel 130 extends in the counterclockwise direction, when the high-pressure fluid flows through the swirl channel 130 and is discharged into the exhaust chamber 311 through the air outlet 140, it can flow in the exhaust chamber 311 in the clockwise direction or the counterclockwise direction for a certain distance and then flow downward, that is, the flow path of the high-pressure fluid is extended, the flow speed of the high-pressure fluid is reduced, energy is consumed in the process, and the exhaust pulsation is effectively weakened, thereby achieving the purpose of silencing and noise reduction.

[0134] Moreover, since the high-pressure fluid flows through the swirl channel 130 and is discharged into the exhaust chamber 311 through the outlet 140, it can flow in the exhaust chamber 311 in a clockwise or counterclockwise direction for a certain distance and then flow downward, it can also improve the oil separation effect, reduce the oil discharge volume, and improve the oil separation efficiency, thereby improving the energy efficiency of the compressor 300 with the silencer 100.

[0135] like Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, optionally, the cover body 110 is further provided with at least one notch 180 , and the at least one notch 180 is communicated with the muffler chamber 120 .

[0136] In this embodiment, it is defined that the cover body 110 is further provided with at least one notch 180, and specifically, at least one notch 180 is communicated with the muffler chamber 120. It can be understood that when the high-pressure fluid flows in the muffler chamber 120 and the swirl channel 130, partial oil-gas separation will also occur, so the separated lubricating oil can flow out of the muffler chamber 120 through at least one notch 180, avoiding the accumulation of a large amount of lubricating oil in the muffler chamber 120 and affecting the exhaust of the compressor 300, and further improving the stability and reliability of the compressor 300 during operation.

[0137] It is understandable that the stator 320 is provided with a guide port 350 communicating with the exhaust chamber 311 , and the lubricating oil discharged from at least one notch 180 can flow to the oil pool at the bottom of the compressor 300 through the guide port 350 .

[0138] Optionally, along the height direction of the cover body 110, the height of at least one notch 180 may be between 0.5 mm and 1.5 mm, thereby ensuring the soundproofing effect of the silencer 100 while ensuring that the separated lubricating oil can be discharged in time through at least one notch 180, thereby ensuring the exhaust effect.

[0139] Specifically, the height of at least one notch 180 is 1 mm, which can be set according to actual needs.

[0140] like Figure 1 and Figure 3 As shown, in some embodiments, optionally, a portion of the cover body 110 is bent toward a side away from the muffler chamber 120 to form at least one flange 190, and the at least one flange 190 is used for fixed installation.

[0141] In this embodiment, a portion of the cover body 110 is bent toward a side away from the muffler chamber 120 to form at least one flange 190, that is, a portion of the cover body 110 is bent outward to form the flange 190. The flange 190 is used for fixed installation, and specifically, the muffler cover 100 is connected to the static disk 320 through at least one flange 190.

[0142] By forming a flange 190 on a portion of the cover body 110, that is, at least one flange 190 and the cover body 110 are an integral structure, the connection strength between at least one flange 190 and the cover body 110 can be improved, and the installation stability of the silencer cover 100 can be improved, thereby ensuring that the silencer cover 100 can effectively reduce the noise of the high-pressure fluid discharged from the exhaust port 321, improve the noise reduction effect and oil separation effect, and improve the energy efficiency of the compressor 300.

[0143] In addition, at least a portion of the swirl channel 130 extends in the clockwise direction, or at least a portion of the swirl channel 130 extends in the counterclockwise direction. Therefore, when the high-pressure fluid flows through the swirl channel 130 and is discharged into the exhaust chamber 311 through the air outlet 140, it can flow in the exhaust chamber 311 in the clockwise direction or the counterclockwise direction for a certain distance and then flow downward, that is, the flow path of the high-pressure fluid is extended, the flow speed of the high-pressure fluid is reduced, energy is consumed in the process, and the exhaust pulsation is effectively weakened, thereby achieving the purpose of silencing and noise reduction.

[0144] Moreover, since the high-pressure fluid flows through the swirl channel 130 and is discharged into the exhaust chamber 311 through the outlet 140, it can flow in the exhaust chamber 311 in a clockwise or counterclockwise direction for a certain distance and then flow downward, it can also improve the oil separation effect, reduce the oil discharge volume, and improve the oil separation efficiency, thereby improving the energy efficiency of the compressor 300 with the silencer 100.

[0145] It is understandable that when there are multiple flanges 190, the notch 180 is formed between two adjacent flanges 190. The notch 180 can be specifically configured according to actual needs.

[0146] like Figure 1 and Figure 3 As shown, in some embodiments, optionally, at least one mounting hole 191 is provided on at least one flange 190 ; a portion of the cover body 110 is recessed toward one side of the silencer chamber 120 to form at least one avoidance space 210 , and each avoidance space 210 is connected to a mounting hole 191 .

[0147] In this embodiment, at least one mounting hole 191 is provided on at least one flange 190 . It is understandable that the compressor 300 also includes at least one fastener, each fastener passing through a mounting hole 191 and connected to the stator plate 320 , so as to achieve installation and fixation of the silencer cover 100 .

[0148] It is understandable that there may be a plurality of mounting holes 191 to improve the mounting stability between the muffler cover 100 and the stator plate 320 .

[0149] A portion of the cover body 110 is recessed toward one side of the muffler cavity 120 to form at least one escape space 210, and each escape space 210 is connected to a mounting hole 191, that is, the escape space 210 corresponds to the mounting hole 191 one by one. Since at least one mounting hole 191 is used for fixed installation, by providing at least one escape space 210, the installation difficulty of the muffler cover 100 can be reduced and the installation efficiency can be improved.

[0150] According to a second aspect of the present invention, a compressor 300 is provided, comprising a silencer cover 100 as provided in any of the above embodiments, and thus having all the beneficial technical effects of the silencer cover 100, which will not be described in detail herein.

[0151] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, further, the compressor 300 also includes a shell 310, the shell 310 is provided with an exhaust chamber 311, and the exhaust chamber 311 is connected to the air outlet 140; a static plate 320 is arranged in the shell 310, and the static plate 320 is provided with an exhaust port 321, and the silencer cover 100 is arranged on the outside of the exhaust port 321 and is connected to the static plate 320, and the exhaust port 321 is connected to the silencer chamber 120; a moving plate 330, and the static plate 320 are enclosed to form a compression chamber 340, and the compression chamber 340 is connected to the exhaust port 321.

[0152] The compressor 300 provided in the embodiment of the present invention includes a shell 310, a static plate 320, a dynamic plate 330 and a muffler cover 100. Specifically, the shell 310 is provided with an exhaust chamber 311, the static plate 320 cooperates with the dynamic plate 330 to form a compression chamber 340, the static plate 320 is provided with an exhaust port 321, the muffler cover 100 is provided on the outside of the exhaust port 321 and is located in the exhaust chamber 311, and the air outlet 140 of the muffler cover 100 is connected with the exhaust chamber 311. Specifically, when the compressor 300 is running, the compressed high-pressure fluid is discharged from the compression chamber 340 through the exhaust port 321, enters the muffler chamber 120, flows through the swirl channel 130, and finally discharged through the air outlet 140, enters the exhaust chamber 311, and finally discharged to the outside of the shell 310 through the exhaust pipeline on the shell 310.

[0153] At least a portion of the swirl channel 130 extends in the clockwise direction, or at least a portion of the swirl channel 130 extends in the counterclockwise direction. Thus, when the high-pressure fluid flows through the swirl channel 130 and is discharged into the exhaust chamber 311 through the air outlet 140, it can flow in the exhaust chamber 311 in the clockwise direction or the counterclockwise direction for a certain distance and then flow downward. In other words, the flow path of the high-pressure fluid is extended, the flow speed of the high-pressure fluid is reduced, energy is consumed in the process, and the exhaust pulsation is effectively weakened, thereby achieving the purpose of silencing and noise reduction.

[0154] In addition, since the high-pressure fluid flows through the swirl channel 130 and is discharged into the exhaust chamber 311 through the outlet 140, it can flow in the exhaust chamber 311 in a clockwise or counterclockwise direction for a certain distance and then flow downward, it can also improve the oil separation effect, reduce the oil discharge volume, and improve the oil separation efficiency, thereby improving the energy efficiency of the compressor 300 with the silencer 100.

[0155] It is worth noting that the number of the swirl channels 130 can be multiple, and the number of the air outlets 140 can also be multiple, and each swirl channel 130 is connected to at least one air outlet 140, that is, the high-pressure fluid enters the muffler chamber 120 after being discharged from the air outlet 321 of the static plate 320, flows through multiple swirl channels 130 respectively, and finally is discharged through multiple air outlets 140. Thus, while the flow path of the high-pressure fluid can be extended, the flow velocity of the fluid can be reduced, and the noise reduction effect can be achieved, the high-pressure fluid discharged from the multiple air outlets 140 can form a split flow in the exhaust chamber 311, further improving the noise reduction effect and oil separation effect of the compressor 300, and improving the energy efficiency of the compressor 300.

[0156] In addition, the high-pressure fluid enters the plurality of swirl channels 130 through the muffler chamber 120, which diverts the high-pressure fluid, changes the flow direction of the airflow, and extends the flow path of the airflow, thereby achieving the purpose of muffler.

[0157] It can be understood that the extension direction of the multiple swirl channels 130 is the same, so that the high-pressure fluid discharged from the multiple outlets 140 can form a diversion and impact in the exhaust chamber 311, thereby reducing the exhaust noise and exhaust pulsation during the operation of the compressor 300, and can also improve the oil separation effect and enhance the energy efficiency of the compressor 300.

[0158] The compressor 300 includes but is not limited to a scroll compressor and a rotary compressor. Optionally, the scroll compressor may be a high-pressure chamber scroll compressor or a low-pressure chamber scroll compressor.

[0159] Optionally, the compressor 300 further includes an air intake pipe, which is connected to the compression chamber 340. Specifically, the refrigerant enters the compression chamber 340 from the air intake pipe for compression.

[0160] Optionally, the shell 310 includes a shell body and an upper cover, the upper cover is connected to the shell body to form an exhaust chamber 311, and the silencer cover 100 is located between the static disk 320 and the upper cover.

[0161] Optionally, the compressor 300 further includes an exhaust check valve, which is disposed at the exhaust port 321 and can open or close the exhaust port 321. Specifically, when the compressor 300 is running, the compressed high-pressure fluid impacts the exhaust check valve through the exhaust port 321, so that the exhaust check valve opens the exhaust port 321, and the high-pressure fluid enters the muffler chamber 120 through the exhaust port 321, and is discharged through the swirl channel 130 and the air outlet 140 to perform exhaust silencing.

[0162] When the compressor 300 stops, the exhaust check valve quickly falls back to the exhaust port 321 to cover the exhaust port 321 to prevent the high-pressure fluid that has not been discharged from the shell 310 from flowing back into the compression chamber 340 through the exhaust port 321, thereby causing the compressor 300 to reverse.

[0163] In some embodiments, optionally, the distance between the inner wall of the shell 310 located in the exhaust cavity 311 and the air outlet 140 is smaller than a preset distance.

[0164] In this embodiment, the distance between the air outlet 140 and the inner wall of the shell 310 located in the exhaust chamber 311 is smaller than the preset distance, that is, the distance between the air outlet 140 and the inner wall of the shell 310 is small, that is, the air outlet 140 and the inner wall of the shell 310 are as close as possible, so that the high-pressure fluid discharged from the air outlet 140 can quickly reach the inner wall of the shell 310 for oil and gas separation, thereby improving the oil and gas separation effect, and further improving the energy efficiency of the compressor 300.

[0165] In addition, the high-pressure airflow that quickly reaches the inner wall of the shell 310 can flow in the exhaust chamber 311 in a clockwise or counterclockwise direction for a certain distance and then flow downward. In other words, the flow path of the high-pressure fluid is extended and the flow speed of the high-pressure fluid is reduced. Energy is consumed in the process, which effectively weakens the exhaust pulsation, thereby achieving the purpose of silencing and noise reduction.

[0166] Moreover, since the high-pressure fluid flows through the swirl channel 130 and is discharged into the exhaust chamber 311 through the outlet 140, it can flow in the exhaust chamber 311 in a clockwise or counterclockwise direction for a certain distance and then flow downward, it can also improve the oil separation effect, reduce the oil discharge volume, and improve the oil separation efficiency, thereby improving the energy efficiency of the compressor 300 with the silencer 100.

[0167] like Figure 4 As shown, in some embodiments, optionally, the stator disk 320 is provided with at least one guide port 350 , and at least one guide port 350 is connected to the exhaust chamber 311 ; along the axial direction of the stator disk 320 , at least one guide port 350 is staggered with the air outlet 140 .

[0168] In this embodiment, it is defined that at least one guide port 350 is provided on the stator disk 320 , and at least one guide port 350 is communicated with the exhaust chamber 311 , that is, along the axial direction of the stator disk 320 , at least one guide port 350 passes through the stator disk 320 .

[0169] Specifically, the high-pressure fluid discharged from the air outlet 140 to the exhaust chamber 311 flows in the exhaust chamber 311 in a clockwise or counterclockwise direction for a certain distance, flows downward, passes through at least one guide port 350, and is discharged to the outside of the shell 310 through the exhaust pipe on the shell 310.

[0170] Along the axial direction of the stator 320, at least one guide port 350 is staggered with the air outlet 140, that is, a line connecting at least one guide port 350 and the central axis of the stator 320 and a line connecting the air outlet 140 and the central axis form a preset angle, so that the high-pressure fluid discharged from the air outlet 140 can rotate a certain distance in the exhaust chamber 311 and then flow downward, further improving the sound insulation effect and oil separation effect of the compressor 300.

[0171] Optionally, the preset angle between the line connecting at least one guide port 350 and the central axis of the stator disk 320 and the line connecting the air outlet 140 and the central axis is 90°, so as to further extend the rotational diversion time of the high-pressure fluid discharged from the air outlet 140 in the exhaust chamber 311, improve the noise reduction effect and oil separation effect, and thereby improve the energy efficiency of the compressor 300.

[0172] According to a third aspect of the present invention, a refrigeration device is provided, including the silencer hood 100 provided in the first aspect or the compressor 300 provided in the second aspect, thereby having all the beneficial technical effects of the silencer hood 100 or the compressor 300, which will not be repeated here.

[0173] Among them, refrigeration equipment includes but is not limited to air conditioners.

[0174] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0175] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0176] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A soundproof cover, characterized in that: include: A cover body, wherein the cover body is provided with a silencer cavity and a swirl channel; An air outlet is provided on the cover body, and the muffler cavity is connected with the air outlet through the swirl channel; Wherein, at least a portion of the swirl channel extends in a clockwise direction or a counterclockwise direction.

2. The soundproof cover according to claim 1, characterized in that: The number of the swirl channels is at least two, and each of the swirl channels is connected to at least one of the air outlets; Wherein, at least two of the swirl channels extend in the same direction.

3. The soundproof cover according to claim 2, characterized in that: After at least one of the swirl channels is rotated by a preset angle around the central axis of the cover body, it can overlap with one of the remaining swirl channels.

4. The soundproof cover according to claim 1, characterized in that: The cover body comprises: a first housing; The second cover body is connected to the first cover body and arranged with the first cover body along the height direction of the cover body. The swirl channel and the air outlet are arranged in the first cover body, and the silencer chamber is arranged in the second cover body. The second cover body is used for fixed installation.

5. The soundproof cover according to claim 4, characterized in that: The first cover body includes a top cover body and a side cover body connected to each other. The top cover body and the side cover body are combined to form the swirl channel. The top cover body is arranged opposite to the second cover body, and the air outlet is arranged on the side cover body.

6. The soundproof cover according to claim 5, characterized in that: The side cover body comprises a first cavity wall and a second cavity wall, wherein the first cavity wall is arranged opposite to the second cavity wall; At least a portion of the first cavity wall is configured as a first arc-shaped wall; and / or at least a portion of the second cavity wall is configured as a second arc-shaped wall.

7. The soundproof cover according to claim 6, characterized in that: The first arc-shaped wall comprises a first arc-shaped segment and a second arc-shaped segment which are connected, and the centers of the first arc-shaped segment and the second arc-shaped segment are respectively located on two sides of the first arc-shaped wall; Wherein, after the second arc-shaped wall rotates 180° around the central axis of the cover body, it can overlap with the first arc-shaped wall.

8. The soundproof cover according to claim 7, characterized in that: The second arc segment is tangent to the first arc segment.

9. The soundproof cover according to claim 4, characterized in that: The second cover body is provided with a flow opening, and the muffler cavity is connected with the swirl channel through the flow opening; Wherein, the cross-sectional area of ​​the flow opening is smaller than the cross-sectional area of ​​the swirl channel.

10. The soundproof cover according to any one of claims 1 to 9, characterized in that: The cover body is further provided with at least one notch, and the at least one notch is communicated with the silencing chamber.

11. The soundproof cover according to any one of claims 1 to 9, characterized in that: A portion of the cover body is bent toward a side away from the muffler cavity to form at least one flange, and the at least one flange is used for fixed installation.

12. The soundproof cover according to claim 11, characterized in that: At least one of the flanges is provided with at least one mounting hole; A portion of the cover body is recessed toward one side of the silencing cavity to form at least one escape space, and each of the escape spaces is communicated with one of the mounting holes.

13. A compressor, characterized in that: include: A soundproofing cover as claimed in any one of claims 1 to 12; A shell, wherein the shell is provided with an exhaust cavity, and the exhaust cavity is communicated with the air outlet; A static plate is arranged in the shell, the static plate is provided with an exhaust port, the muffler cover is arranged outside the exhaust port and connected to the static plate, and the exhaust port is communicated with the muffler chamber; The moving disk and the stationary disk are combined to form a compression chamber, and the compression chamber is communicated with the exhaust port.

14. The compressor according to claim 13, characterized in that The distance between the inner wall of the shell body located in the exhaust cavity and the air outlet is smaller than a preset distance.

15. The compressor according to claim 13 or 14, characterized in that The static disk is provided with at least one guide port, and at least one of the guide ports is communicated with the exhaust cavity; Along the axial direction of the stator disk, at least one of the guide ports is staggered with the air outlet.

16. A refrigeration device, characterized in that: include: A soundproofing cover as claimed in any one of claims 1 to 12; or A compressor as claimed in any one of claims 13 to 15.

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