Silencer, compressor and refrigeration equipment

Abstract

The utility model discloses a silencer, a compressor and refrigeration equipment, and relates to the technical field of compressors. The silencer comprises a shell, a flow channel pipe and flow dividing columns, the flow channel pipe is installed in a containing cavity of the shell, the two ends of a channel of the flow channel pipe communicate with an air inlet connector and an air outlet connector correspondingly, at least one flow dividing column is arranged between part of pipe sections of the flow channel pipe, and the flow dividing columns divide the interior of the channel into a first flow channel and a second flow channel; the two ends of the first flow channel communicate with the two ends of the second flow channel. Therefore, when a refrigerant enters the channel of the flow channel pipe through the air inlet connector, the refrigerant enters the first flow channel and the second flow channel under flow division of the flow division column and finally converges again. The through-flow area in the first flow channel and the second flow channel is smaller than the through-flow area of a channel without the flow dividing column, the running resistance of the refrigerant is increased, the energy of the refrigerant is consumed, meanwhile, the energy of the refrigerant can be further consumed after confluence, the pneumatic noise of the refrigerant is effectively reduced, and the use experience of a user is improved.

Description

Technical Field

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

[0002] Refrigerators use compressors to achieve refrigeration. The high refrigerant flow rate during operation generates considerable noise, necessitating a muffler installed at the air intake of the compressor assembly. Conventional mufflers utilize a serpentine pipe connected to the air intake. The reciprocating serpentine pipe dissipates refrigerant energy, thereby reducing aerodynamic noise. However, this noise reduction effect is limited, making it difficult to achieve optimal noise reduction. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a muffler that can further reduce the aerodynamic noise of the refrigerant.

[0004] The utility model also provides a compressor and a refrigeration device having the above-mentioned muffler.

[0005] The silencer according to the embodiment of the first aspect of the present invention includes: a shell having an accommodating cavity inside, the shell being provided with an air inlet connector and an air outlet connector; a flow pipe installed in the accommodating cavity, a channel formed in the flow pipe, one end of the channel being connected to the air inlet connector, and the other end of the channel being connected to the air outlet connector; at least one diverter column provided in a partial pipe section of the flow pipe, the diverter column separating the channel in the pipe section into a first flow channel and a second flow channel, the first flow channel and the second flow channel being isolated in the extension direction of the diverter column.

[0006] The muffler according to the embodiment of the present utility model has at least the following beneficial effects:

[0007] The flow channel tube is installed in the accommodating cavity of the shell, and the two ends of the channel of the flow channel tube are respectively connected to the air inlet connector and the air outlet connector, at least one diverter column is provided between the partial pipe sections of the flow channel tube, and the diverter column separates the first flow channel and the second flow channel in the channel, and both ends of the first flow channel and the second flow channel are connected. Therefore, when the refrigerant enters the channel of the flow channel tube through the air inlet connector, it enters the first flow channel and the second flow channel respectively under the diversion of the diverter column, and finally re-converges. The flow area in the first flow channel and the second flow channel is smaller than the flow area of ​​the channel without the diverter column, the running resistance of the refrigerant is increased, and the energy of the refrigerant is consumed. At the same time, the energy of the refrigerant can be further consumed after the confluence, which effectively reduces the aerodynamic noise of the refrigerant and improves the user experience.

[0008] According to some embodiments of the present invention, the minimum flow area of ​​the first flow channel is greater than or equal to the maximum flow area of ​​the second flow channel.

[0009] According to some embodiments of the present invention, the flow conduit includes a diameter-reducing section, the cross-sectional area of ​​the diameter-reducing section is larger than the cross-sectional area of ​​the flow conduit at the inlet of the diameter-reducing section, and the diverter column is located in the diameter-reducing section.

[0010] According to some embodiments of the present invention, the diameter-changing section includes a main body and a protruding portion protruding toward the outside of the main body, and the second flow channel is formed in the protruding portion.

[0011] According to some embodiments of the present invention, a plurality of diverter columns are provided, and the plurality of diverter columns are spaced apart along the extension direction of the channel.

[0012] According to some embodiments of the present invention, the flow channel tube includes a plurality of bending segments, the plurality of bending segments are arranged at intervals, and each bending segment is provided with a diverter column.

[0013] According to some embodiments of the present invention, the flow channel pipe includes a first joint section, a first bending section, a horizontal section, a second bending section, a vertical section, a third bending section, an inclined section, a fourth bending section and a second joint section connected in sequence, the first joint section is connected to the air inlet joint, the first bending section is bent downward, the horizontal section is extended in the horizontal direction, the second bending section is bent upward, the vertical section is extended in the vertical direction, the third bending section is bent toward the direction of the first joint, the inclined section is inclined upward toward the direction of the first joint, the fourth bending section is bent upward, and the second joint section is connected to the air outlet joint.

[0014] According to some embodiments of the present invention, a diverter column is provided in each of the first bending section, the second bending section, the third bending section, and the fourth bending section.

[0015] According to some embodiments of the present invention, a partition is provided on the outside of the flow tube, the partition is connected to the inner wall of the accommodating cavity, and the accommodating cavity is respectively formed with a first cavity and a second cavity on both sides of the partition; the first joint section is provided with a first through hole for connecting the first cavity and the channel, and the vertical section is provided with a second through hole for connecting the second cavity and the channel.

[0016] According to some embodiments of the present invention, a mounting groove is provided around the inner wall of the accommodating cavity, and the partition is inserted into the mounting groove.

[0017] According to some embodiments of the present invention, one end of the diverter column facing the air inlet direction of the channel is an arc-shaped surface, and along the air inlet direction, the thickness of the diverter column first increases and then decreases.

[0018] According to some embodiments of the present invention, the diverter column protrudes from the flow channel tube and abuts against the wall of the accommodating cavity.

[0019] According to some embodiments of the present invention, the shell includes a first shell portion and a second shell portion, the upper end of the first shell portion is provided with one of an annular groove or a convex edge, the lower end of the second shell portion is provided with the other of the annular groove or the convex edge, and the convex edge is inserted into the annular groove.

[0020] According to the second aspect of the present invention, the compressor includes a shell, a compression assembly, an air intake pipe and the muffler described in the above embodiment. The compression assembly and the muffler are both arranged inside the shell, the air intake pipe is passed through the shell and connected to the air intake connector of the muffler, and the air outlet connector is connected to the air intake end of the compression assembly.

[0021] The compressor according to the embodiment of the present invention has at least the following beneficial effects:

[0022] By adopting the silencer of the first embodiment, the silencer is installed in the accommodating cavity of the shell by setting a flow channel pipe, and the two ends of the channel of the flow channel pipe are respectively connected to the air inlet connector and the air outlet connector, at least one diverter column is set between the partial pipe sections of the flow channel pipe, and the diverter column separates the first flow channel and the second flow channel in the channel, and the two ends of the first flow channel and the second flow channel are connected. Therefore, when the refrigerant enters the channel of the flow channel pipe through the air inlet connector, it enters the first flow channel and the second flow channel respectively under the diversion of the diverter column, and finally re-converges. The flow area in the first flow channel and the second flow channel is smaller than the flow area of ​​the channel without the diverter column design, the running resistance of the refrigerant is increased, and the energy of the refrigerant is consumed. At the same time, the energy of the refrigerant can be further consumed after the confluence, effectively reducing the aerodynamic noise of the refrigerant and improving the user experience.

[0023] The refrigeration equipment according to the embodiment of the third aspect of the present invention includes the compressor described in the above embodiment.

[0024] The refrigeration equipment according to the embodiment of the present invention has at least the following beneficial effects:

[0025] By adopting the compressor of the second embodiment, the muffler of the compressor is installed in the accommodating cavity of the shell by setting a flow channel pipe, and the two ends of the channel of the flow channel pipe are respectively connected to the air inlet joint and the air outlet joint, at least one diverter column is provided between the partial pipe sections of the flow channel pipe, and the diverter column separates the first flow channel and the second flow channel in the channel, and the two ends of the first flow channel and the second flow channel are both connected. Therefore, when the refrigerant enters the channel of the flow channel pipe through the air inlet joint, it enters the first flow channel and the second flow channel respectively under the diversion of the diverter column, and finally re-converges. The flow area in the first flow channel and the second flow channel is smaller than the flow area of ​​the channel without the diverter column design, the running resistance of the refrigerant is increased, and the energy of the refrigerant is consumed. At the same time, the energy of the refrigerant can be further consumed after the confluence, which effectively reduces the aerodynamic noise of the refrigerant and improves the user experience.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0028] Figure 1 This is a schematic structural diagram of a muffler according to an embodiment of the present invention;

[0029] Figure 2 This is an exploded view of a muffler according to an embodiment of the present invention;

[0030] Figure 3 This is a top view of a muffler according to an embodiment of the present invention;

[0031] Figure 4 yes Figure 3 Cross-sectional view at AA in the middle;

[0032] Figure 5 This is a structural diagram of a silencer hiding a second shell in one embodiment of the utility model;

[0033] Figure 6 This is a schematic structural diagram of a flow channel tube according to an embodiment of the present invention;

[0034] Figure 7 This is a structural diagram of the first shell portion of an embodiment of the utility model;

[0035] Figure 8 This is a structural diagram of the second shell portion of an embodiment of the present utility model;

[0036] Figure 9 It is an exploded view of a flow channel tube according to an embodiment of the present invention.

[0037] Reference numerals:

[0038] Muffler 1000;

[0039] Housing 100; accommodating chamber 110; first cavity 111; second cavity 112; mounting groove 113; first leakage hole 114; second leakage hole 115; first shell 120; air inlet connector 121; flange 122; second shell 130; air outlet connector 131; annular groove 132;

[0040] Flow channel tube 200; first tube portion 201; second tube portion 202; diameter reducing section 203; main body portion 204; protrusion 205; channel 210; first flow channel 211; second flow channel 212; first joint section 220; first through hole 221; first bent section 230; horizontal section 240; second bent section 250; vertical section 260; second through hole 261; third bent section 270; inclined section 271; fourth bent section 272; second joint section 280; partition 290;

[0041] Diverter column 300; arc-shaped surface 310. DETAILED DESCRIPTION

[0042] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0043] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0045] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0046] Reference Figure 1 and Figure 2 As shown, a silencer 1000 according to an embodiment of the present invention can be used in a compressor, in particular a reciprocating compressor. The compressor has a compression assembly, and the silencer 1000 is connected to the air inlet end of the compression assembly. The silencer 1000 according to an embodiment of the present invention includes a shell 100, a flow pipe 200, and a diverter column 300. A housing chamber 110 is formed inside the shell 100, and the shell 100 is provided with an air inlet connector 121 and an air outlet connector 131. For example, the air inlet connector 121 is provided at a lower position of the side wall of the shell 100, and the air outlet connector 131 is located at the upper end of the shell 100. The air inlet connector 121 is used to connect to the suction pipe of the compressor, and the air outlet connector 131 is connected to the air inlet end of the compression assembly. The flow pipe 200 is installed in the housing chamber 110, one end of the flow pipe 200 is connected to the air inlet connector 121, and the other end is connected to the air outlet connector 131, and a channel 210 is formed in the flow pipe 200. Therefore, the refrigerant will sequentially pass through the suction pipe, the air inlet connector 121, the channel 210, the air outlet connector 131, and finally enter the compression assembly.

[0047] Reference Figure 3 and Figure 4 As shown, the diverter column 300 is arranged in a partial pipe section of the flow channel tube 200, and the diverter column 300 separates the channel 210 in the pipe section into a first flow channel 211 and a second flow channel 212, and the first flow channel 211 and the second flow channel 212 are isolated in the extension direction of the diverter column 300, and the extension direction of the diverter column 300 is also the flow direction of the refrigerant in the channel 210. The connection method between the diverter column 300 and the flow channel tube 200 can be bonding, integral molding, etc. The air inlet end of the first flow channel 211 is connected to the air inlet end of the second flow channel 212, and the air outlet end of the first flow channel 211 is connected to the air outlet end of the second flow channel 212. It should be noted that the first flow channel 211 is a structure formed between the side wall on one side of the diverter column 300 and the partial inner wall of the opposite channel 210, and the second flow channel 212 is a structure formed between the side wall on the other side of the diverter column 300 and the partial inner wall of the opposite channel 210.

[0048] It is understood that by adopting the above solution, when the refrigerant enters the channel 210 of the flow tube 200 through the air inlet connector 121, it enters the first flow channel 211 and the second flow channel 212 respectively under the diversion of the diverter column 300, and finally re-converges. The flow area in the second flow channel 212 is smaller than the flow area of ​​the channel 210 without the diverter column 300, which increases the running resistance of the refrigerant and consumes the energy of the refrigerant. At the same time, the confluence can further consume the energy of the refrigerant, effectively reducing the aerodynamic noise of the refrigerant and improving the user experience.

[0049] It's important to note that reducing noise often significantly impacts the compressor's cooling capacity and COP, leading to reduced compressor performance. A compressor's cooling capacity refers to the amount of heat absorbed from a low-temperature heat source per unit time. It's a key indicator of a compressor's refrigeration capacity. A compressor's COP is the ratio of cooling capacity to electrical power, representing the ratio of the system's cooling or heating output to the electrical power consumed. A higher COP indicates a more efficient system and lower energy consumption.

[0050] In order to reduce the noise while reducing the impact on the cooling capacity and COP of the compressor, refer to Figure 4 As shown, in the embodiment of the present invention, the minimum flow area of ​​the first flow channel 211 is greater than or equal to the maximum flow area of ​​the second flow channel 212, and the minimum flow area of ​​the first flow channel 211 is greater than the minimum flow area of ​​the second flow channel 212. It should be noted that the flow area of ​​the first flow channel 211 refers to: on the projection plane perpendicular to the length direction of the diverter column 300, the longest line connecting the two ends of the diverter column 300 along the refrigerant flow direction is S1, and the area on the cross section in the first flow channel 211 and perpendicular to the line S1 is the flow area. The length direction of the diverter column 300 is Figure 2 The front-to-back direction shown in .

[0051] By adopting the above solution, the flow resistance of the refrigerant in the second flow channel 212 is greater than that in the first flow channel 211. Therefore, the solution of this embodiment can increase the flow resistance of part of the refrigerant instead of increasing the flow resistance of all the refrigerants, thereby reducing the kinetic energy of the refrigerant and reducing the impact on the cooling capacity and COP of the compressor.

[0052] Table 1: Comparison of noise, cooling capacity and COP of different solutions

[0053]

[0054] Among them, the displacement of the compressor is 7.5cc and the speed is fixed at 50Hz. According to the experimental data in Table 1, compared with the solution without the diverter column 300, the noise level of this embodiment is reduced from 37.99dB to 34.53dB after the diverter column is set, with a difference of 3.46dB and a decrease of about 9.11%. The cooling capacity is reduced from 110.2w to 110.1w, with a difference of 0.1w and a decrease of 0.091%. The COP is reduced from 1.789 to 1.713, with a difference of 0.076 and a decrease of 0.425%. It can be seen from the above experimental data that after the diverter column 300 is set, the impact on the cooling capacity and COP of the compressor is relatively small, and it can also effectively reduce the aerodynamic noise of the compressor.

[0055] Reference Figure 4 and Figure 6As shown, in an embodiment of the present invention, the flow conduit 200 includes a reducing section 203, the cross-sectional area at the reducing section 203 is larger than the cross-sectional area of ​​the flow conduit 200 at the inlet of the reducing section 203, and the diverter column 300 is located in the reducing section 203. It should be noted that the cross-sectional area of ​​the reducing section 203 refers to the flow area of ​​the channel 210 after ignoring the diverter column 300. The cross-sectional area of ​​the flow conduit 200 at the inlet of the reducing section 203 refers to the flow area of ​​the channel 210 at this location. It is understandable that the setting of the diverter column 300 will cause the flow area of ​​the channel 210 at the diverter column 300 to be reduced, affecting the air intake of the compressor. To this end, by setting the diverter column 300 in the reducing section 203, the flow area of ​​the channel 210 at the diverter column 300 can be appropriately increased to ensure that the air intake of the compressor meets the requirements.

[0056] Continue to refer to Figure 4 and Figure 6 As shown, in the embodiment of the present invention, the reducing section 203 includes a main body 204 and a protrusion 205 protruding outward from the main body 204. The second flow channel 212 is formed in the protrusion 205. The main body 204 is the section of the flow channel tube 200 that does not have the diverter post 300. The protrusion 205 is formed by increasing the flow area of ​​the channel 210. By providing the protrusion 205 protruding along the outside of the main body 204, it can cooperate with the diverter post 300 to form the second flow channel 212, ensuring that the compressor's air intake meets the requirements.

[0057] Reference Figure 4 As shown, in an embodiment of the present invention, a plurality of diverter posts 300 are provided, and the plurality of diverter posts 300 are spaced apart along the extension direction of the flow channel tube 200. For example, four diverter posts 300 are provided, and the four diverter posts 300 are spaced apart in sequence along the extension direction of the flow channel tube 200. Of course, the number of diverter posts 300 can also be other numbers, such as two, three, five, etc., and the appropriate number is selected according to actual circumstances. It is understood that each diverter post 300 can separate the channel 210 into a first flow channel 211 and a second flow channel 212 at a corresponding position. That is, at intervals, the refrigerant in the channel 210 is divided into two airflows at the location of the diverter post 300, and then re-converges into a complete airflow until it is finally discharged from the muffler 1000. With the above solution, the kinetic energy of the refrigerant is reduced by a portion each time it passes through a diverter post 300. Therefore, the arrangement of multiple diverter posts 300 can further reduce the aerodynamic noise of the refrigerant.

[0058] Continue to refer to Figure 4As shown, in an embodiment of the present invention, the flow channel tube 200 includes a plurality of bending sections, and the plurality of bending sections are arranged in sequence along the extension direction of the flow channel tube 200, and a diverter column 300 is provided in each bending section. The bending section may be a variable diameter section 203. Therefore, the flow channel tube 200 is in a reciprocating bending shape, which can consume the energy of the refrigerant, thereby playing a role in reducing aerodynamic noise. Among them, the noise generated by the compressor mainly comes from medium-frequency and high-frequency noise. Since the diverter column 300 is provided in the bending section, a vortex is formed when the refrigerants in the first flow channel 211 and the second flow channel 212 meet, which can further reduce the kinetic energy of the refrigerant, and has a good weakening effect on high-frequency noise from 3000Hz to 8000Hz, thereby reducing the aerodynamic noise of the refrigerant.

[0059] The plurality of bending sections are respectively a first bending section 230, a second bending section 250, a third bending section 270 and a fourth bending section 272. Figure 4 As shown, in an embodiment of the present invention, the flow channel tube 200 includes a first joint section 220, a first bending section 230, a horizontal section 240, a second bending section 250, a vertical section 260, a third bending section 270, an inclined section 271, a fourth bending section 272 and a second joint section 280 that are connected in sequence. The first joint section 220 is connected to the air inlet joint 121, and the central axis of the first joint section 220 and the central axis of the air inlet joint 121 can be coplanar or coincident, which is beneficial for the refrigerant to directly enter the first joint section 220 after passing through the air inlet joint 121, thereby improving the air intake efficiency. The first bending section 230 is bent downward, and the horizontal section 240 is extended in the horizontal direction. The horizontal direction can be Figure 4 The left and right directions in the diagram. The second bending section 250 is bent upward, the vertical section 260 is extended in the vertical direction, and the third bending section 270 is bent toward the direction of the first joint, for example, the third bending section 270 is bent upward in the direction from right to left. The inclined section 271 is inclined upward toward the direction of the first joint, for example, the inclined section 271 is inclined upward in the direction from right to left. The fourth bending section 272 is bent upward, and the second joint section 280 is connected to the air outlet joint 131. Therefore, the flow channel tube 200 is designed as a reciprocating bending structure, which can extend the flow path of the refrigerant while utilizing the bending of the first bending section 230, the second bending section 250 and the third bending section 270 to further consume the energy of the refrigerant, thereby effectively reducing the aerodynamic noise of the refrigerant.

[0060] Continue to refer to Figure 4As shown, in the embodiment of the present invention, a diverter column 300 is provided in each of the first bend section 230, the second bend section 250, the third bend section 270, and the fourth bend section 272. By combining the diverter column 300 with the serpentine-bent flow channel tube 200, the first flow channel 211 and the second flow channel 212 are formed at the bend section. Therefore, the refrigerant passing through the first flow channel 211 and the second flow channel 212 converge to form a vortex, which can further reduce the kinetic energy of the refrigerant and effectively weaken high-frequency noise from 3000 Hz to 8000 Hz, thereby reducing the aerodynamic noise of the refrigerant.

[0061] Continue to refer to Figure 4 As shown, in the embodiment of the present invention, one end of the diverter column 300 facing the air inlet direction of the channel 210 is an arcuate surface 310. Along the air inlet direction of the channel 210, the thickness of the diverter column 300 first increases and then decreases. It should be noted that the thickness of the diverter column 300 refers to: on the projection surface perpendicular to the length direction of the diverter column 300, the longest line connecting the two ends of the diverter column 300 along the refrigerant flow direction is S1, and the direction perpendicular to the line S1 is the thickness direction of the diverter column 300. The length direction of the diverter column 300 is Figure 2 . For example, the cross-section of the diverter column 300 can be in the shape of a water drop. Therefore, the design of the diverter column 300 facing the air inlet direction of the channel 210 at one end thereof is a curved surface 310, which can effectively guide the refrigerant to flow in the direction of the first flow channel 211 and the second flow channel 212, thereby improving the smoothness of the refrigerant when it enters the air inlet ends of the first flow channel 211 and the second flow channel 212. The thickness of the diverter column 300 first increases and then decreases, which can better guide the direction of the refrigerant to improve the noise reduction effect of the compressor. As an alternative embodiment, the shape of the diverter column 300 can also be a long strip, cylinder, prism, etc. extending along the extension direction of the flow channel tube 200, and the appropriate shape can be selected according to the actual situation.

[0062] Reference Figure 5 and Figure 6As shown, in an embodiment of the present invention, a partition 290 is provided on the outside of the flow tube 200. The partition 290 can be integrally injection-molded with the flow tube 200, or the partition 290 can be connected to the flow tube 200 by gluing or hot-melt connection. The partition 290 is connected to the inner wall of the accommodating cavity 110, and the accommodating cavity 110 forms a first cavity 111 and a second cavity 112 on both sides of the partition 290. The first cavity 111 and the second cavity 112 are spaced apart along the left-right direction of the shell 100, the first cavity 111 and the first joint section 220 are both located on the left side of the shell 100, and the second cavity 112 is located on the right side of the shell 100. A part of the structure of the flow tube 200 is located in the first cavity 111, and another part of the structure of the flow tube 200 is located in the second cavity 112. The first joint section 220 is provided with a first through hole 221 for connecting the first cavity 111 and the channel 210 , and the vertical section 260 is provided with a second through hole 261 for connecting the second cavity 112 and the channel 210 .

[0063] It is understandable that the first through hole 221 and the second through hole 261 are provided as the first joint section 220 and the vertical section 260, respectively, rather than as a bend section. This is because the refrigerant at the first air inlet pipe and the vertical section 260 is laminar or approximately laminar, and the provision of the first through hole 221 and the second through hole 261 has little effect on the flow of the refrigerant. Assuming that the first through hole 221 and the second through hole 261 are provided at the bend section, the refrigerant needs to turn at the bend section, which can easily lead to a large amount of refrigerant leaking through the first through hole 221 and the second through hole 261, resulting in a decrease in the cooling capacity and COP of the compressor.

[0064] By setting the first cavity 111, the second cavity 112, the first through hole 221 and the second through hole 261, the first cavity 111 constitutes an expansion cavity, and the second cavity 112 constitutes a resonance cavity. The expansion cavity can have a certain silencing effect on noise in the entire frequency band. The principle of the expansion cavity is to use the discontinuous structure in the sound propagation path to produce a change in sound impedance, thereby causing sound reflection to achieve the purpose of silencing. The resonance cavity has a better silencing effect on noise in a specific frequency band. The different ratios of the volume of the second through hole 261 and the volume of the resonance cavity can determine the targeted weakening of noise of a specific frequency. The principle of the resonance chamber is that when the frequency of the external sound wave resonates with the silencer 1000, the friction loss is large and more energy is absorbed, thereby achieving the purpose of noise reduction.

[0065] Reference Figure 4As shown, in the embodiment of the present invention, the first through hole 221 and the second through hole 261 are both square holes. Setting them as square holes can easily adjust the size of the first through hole 221 and the second through hole 261, and can effectively increase the flow area of ​​the first through hole 221 and the second through hole 261. By changing the size of the first through hole 221 and the second through hole 261, noise in a specific frequency band can be silenced to meet the needs of use in different situations. It should be noted that as an alternative embodiment, the shape of the first through hole 221 and the second through hole 261 can also be a circular hole, a triangular hole, an elliptical hole, etc., and the appropriate solution can be selected according to the actual situation.

[0066] In order to form the first cavity 111 and the second cavity 112 in the accommodating cavity 110, the relative positions of the flow channel tube 200 and the housing 100 are determined at the same time. Figure 7 As shown, in an embodiment of the present invention, a mounting groove 113 is provided around the inner wall of the accommodating cavity 110, and a partition 290 is inserted into the mounting groove 113. The mounting groove 113 can be formed by providing two ribs on the wall of the accommodating cavity 110, the two ribs being spaced apart in the left-right direction, and the mounting groove 113 being formed between the two ribs. As an alternative embodiment, the mounting groove 113 can also be a structure formed by a depression on the inner wall of the accommodating cavity 110, and a suitable solution can be selected according to actual conditions. The mounting groove 113 is provided around the wall of the accommodating cavity, and when the partition 290 is inserted into the mounting groove 113, the accommodating cavity 110 can be divided into a first cavity 111 and a second cavity 112 arranged in the left-right direction. The solution of combining the partition 290 and the mounting groove 113 makes the assembly process simple and convenient, and the assembly efficiency is high. At the same time, the cooperation between the partition 290 and the mounting groove 113 can effectively reduce the refrigerant from penetrating into another cavity through the gap between the partition 290 and the mounting groove 113, thereby improving the sealing effect.

[0067] In order to further limit the position of the flow channel tube 200, refer to Figure 5 and Figure 6 As shown, in the embodiment of the present invention, the diverter post 300 protrudes from the flow conduit 200 and abuts against the inner wall of the accommodating chamber 110. When multiple diverter posts 300 are provided, all of them abut against the wall of the accommodating chamber 110. It will be appreciated that the abutment between the diverter post 300 and the wall of the accommodating chamber 110 effectively prevents the flow conduit 200 from shaking within the accommodating chamber 110, thereby improving the stability and reliability of the installation of the flow conduit 200.

[0068] Reference Figure 7As shown, in an embodiment of the present invention, a first leakage hole 114 is provided on the bottom wall of the first cavity 111, and a second leakage hole 115 is provided on the bottom wall of the second cavity 112. It should be noted that during the flow of the refrigerant, lubricating oil will be mixed with the lubricating oil, which is in a gaseous state and follows the refrigerant to complete the refrigeration cycle. The lubricating oil plays the role of lubricating related components, which can delay friction and wear and increase the service life of related components. The lubricating oil may change from gas to liquid in the flow channel tube 200. The liquid lubricating oil cannot enter the compression assembly to avoid the adverse effects of liquid hammer. Therefore, the first leakage hole 114 and the second leakage hole 115 are respectively provided on the bottom walls of the first cavity 111 and the second cavity 112, so that the lubricating oil accumulated in the first cavity 111 and the second cavity 112 can be discharged into the casing of the compressor, and finally the lubricating oil can re-enter the refrigerant circuit.

[0069] Reference Figure 7 and Figure 8 As shown, in the embodiment of the present invention, the housing 100 includes a first housing portion 120 and a second housing portion 130, with the second housing portion 130 connected to the upper end of the first housing portion 120. It will be appreciated that by dividing the housing 100 into the first housing portion 120 and the second housing portion 130, during assembly, the flow conduit 200 is first installed in the receiving groove, and then the second housing portion 130 is connected to the upper end of the first housing portion 120, thereby completing the assembly of the muffler 1000. This method is simple and efficient.

[0070] In order to ensure the sealing of the connection between the first shell 120 and the second shell 130, refer to Figure 7 and Figure 8 As shown, in the embodiment of the present invention, the upper end of the first shell 120 is provided with an annular groove 132 or a convex edge 122, and the lower end of the second shell 130 is provided with the other of the annular groove 132 or the convex edge 122, and the convex edge 122 is inserted into the annular groove 132. For example, Figure 7 As shown, the upper end of the first shell 100 is provided with an opening, and the upper end of the first shell 100 is surrounded by a flange 122, and the flange 122 is arranged around the opening. The lower end of the second shell 100 is surrounded by an annular groove 132, and the flange 122 is inserted into the annular groove 132. Subsequently, the flange 122 can be fixedly inserted into the annular groove 132 through a hot melt connection, and the first shell 100 and the second shell 100 are non-detachable structures after the hot melt connection. Alternatively, the first shell 100 and the second shell 100 can also be fixedly connected by placing glue in the annular groove 132.

[0071] It can be understood that through the cooperation between the convex edge 122 and the annular groove 132, a reciprocatingly bent maze structure is formed between the convex edge 122 and the annular groove 132, thereby effectively preventing the refrigerant from leaking through the gap between the convex edge 122 and the annular groove 132, and improving the sealing between the first shell 100 and the second shell 100.

[0072] Reference Figure 9 As shown, in the embodiment of the present invention, the runner tube 200 includes a first tube portion 201 and a second tube portion 202. The first tube portion 201 and the second tube portion 202 are connected, and the connection method can be hot-melt connection, adhesive bonding, etc. to ensure the sealing of the connection between the first tube portion 201 and the second tube portion 202 to prevent air leakage. It can be understood that the solution of dividing the runner tube 200 into the first tube portion 201 and the second tube portion 202 facilitates the injection molding of the runner tube 200, simplifies the production steps, and improves production efficiency.

[0073] Since the interior of the compressor is usually in a high-temperature state, in order to prevent the silencer 1000 from deforming at high temperatures and causing functional failure, in an embodiment of the present invention, the shell 100 and the flow tube 200 are made of thermosetting materials. Thermosetting materials refer to materials that can be cured after heat treatment or chemical reaction, and their cured form is irreversible at high temperatures. After heating or irradiation, the thermosetting molecules of the thermosetting material will cross-link with each other to form a stable network structure. Once cured, it cannot be re-molded, so it has excellent stability and durability. Thermosetting materials can be epoxy resins, phenolic resins, silicone resins, etc. Epoxy resins have excellent mechanical properties and insulation properties, and good chemical corrosion resistance. Phenolic resins have the characteristics of high strength, high hardness, wear resistance, etc. Silicone resins are resistant to high temperatures, corrosion-resistant, and have excellent electrical insulation properties, and are often used to manufacture high-temperature sealing materials. Therefore, the appropriate thermosetting material is selected according to the actual situation.

[0074] A compressor according to an embodiment of the present invention includes a housing, a compression assembly, an air intake pipe and the muffler 1000 of the above embodiment. The compression assembly and the muffler 1000 are both arranged inside the housing. The air intake pipe is passed through the housing and connected to the air intake connector 121 of the muffler. The air outlet connector 131 is connected to the air intake end of the compression assembly. The compressor can be a reciprocating compressor, which is installed in a refrigerator. The main component of the compressor is the compression assembly, which includes a crank-connecting rod mechanism, a motor, an intake mechanism, and an exhaust mechanism. The mass of the compression assembly accounts for more than 70% of the overall mass of the compressor. The compression assembly is suspended in the housing 100 of the compressor by 3 to 4 springs. The vibration of the compression assembly is effectively reduced and transmitted to the housing 100 of the compressor. The compressor of the embodiment of the present invention adopts the muffler 1000 of the above embodiment. The muffler 1000 is installed in the accommodating cavity 110 of the housing 100 by providing a flow tube 200, and the two ends of the flow tube 200 are respectively connected to the air inlet connector 121 and the air outlet connector 131. The diverter column 300 is also provided through the channel 210 of the flow tube 200. The channel 210 is formed with a first flow channel 211 and a second flow channel 212 at the diverter column 300, and the two ends of the first flow channel 211 and the second flow channel 212 are both connected. Therefore, when the refrigerant enters the channel 210 of the flow tube 200 through the air inlet connector 121, it enters the first flow channel 211 and the second flow channel 212 respectively under the diversion of the diverter column 300, and finally re-merges. The flow area in the second flow channel 212 is smaller than the flow area of ​​the channel 210 without the diverter column 300. The running resistance of the refrigerant is increased, and the energy of the refrigerant is consumed. At the same time, the energy of the refrigerant can be further consumed after the confluence, which effectively reduces the aerodynamic noise of the refrigerant and improves the user experience.

[0075] Since the compressor adopts all the technical solutions of the muffler 1000 of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0076] The refrigeration equipment of one embodiment of the present invention may be a refrigerator, an air conditioner, etc. The refrigeration equipment includes the compressor of the above embodiment. The refrigeration equipment of the embodiment of the present invention adopts the compressor of the above embodiment, and the silencer 1000 of the compressor is installed in the accommodating cavity 110 of the shell 100 by setting a flow channel pipe 200, and the two ends of the flow channel pipe 200 are respectively connected to the air inlet joint 121 and the air outlet joint 131, and the diverter column 300 is also passed through the channel 210 of the flow channel pipe 200. The channel 210 is formed with a first flow channel 211 and a second flow channel 212 at the diverter column 300, and both ends of the first flow channel 211 and the second flow channel 212 are connected. Therefore, when the refrigerant enters the channel 210 of the flow channel pipe 200 through the air inlet joint 121, it enters the first flow channel 211 and the second flow channel 212 respectively under the diversion of the diverter column 300, and finally re-merges. The flow area in the second flow channel 212 is smaller than the flow area of ​​the channel 210 without the diverter column 300. The running resistance of the refrigerant is increased, and the energy of the refrigerant is consumed. At the same time, the energy of the refrigerant can be further consumed after the confluence, which effectively reduces the aerodynamic noise of the refrigerant and improves the user experience.

[0077] Since the refrigeration equipment adopts all the technical solutions of the compressor of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be described in detail here.

[0078] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A muffler, characterized in that: include: A housing is provided with an accommodating cavity inside, and the housing is provided with an air inlet connector and an air outlet connector; a flow channel tube installed in the accommodating cavity, wherein a channel is formed in the flow channel tube, one end of the channel is connected to the air inlet connector, and the other end of the channel is connected to the air outlet connector; At least one diverter column is provided in a partial pipe section of the flow channel tube, and the diverter column separates the channel in the pipe section into a first flow channel and a second flow channel, and the first flow channel and the second flow channel are isolated in the extension direction of the diverter column.

2. The muffler according to claim 1, characterized in that: The minimum flow area of ​​the first flow channel is greater than or equal to the maximum flow area of ​​the second flow channel.

3. The muffler according to claim 1 or 2, characterized in that: The flow conduit includes a diameter-reducing section, the cross-sectional area of ​​the diameter-reducing section is larger than the cross-sectional area of ​​the flow conduit at the inlet of the diameter-reducing section, and the diverter column is located in the diameter-reducing section.

4. The muffler according to claim 3, characterized in that: The diameter-changing section includes a main body and a protruding portion protruding toward the outside of the main body, and the second flow channel is formed in the protruding portion.

5. The muffler according to claim 1, characterized in that: There are a plurality of diverter columns, and the plurality of diverter columns are arranged at intervals along the extending direction of the channel.

6. The muffler according to claim 5, characterized in that: The flow channel tube includes a plurality of bending sections, which are arranged at intervals, and each bending section is provided with a diverter column.

7. The muffler according to claim 1, characterized in that: The flow channel pipe includes a first joint section, a first bending section, a horizontal section, a second bending section, a vertical section, a third bending section, an inclined section, a fourth bending section and a second joint section connected in sequence, the first joint section is connected to the air inlet joint, the first bending section is bent downward, the horizontal section is extended in the horizontal direction, the second bending section is bent upward, the vertical section is extended in the vertical direction, the third bending section is bent toward the direction of the first joint, the inclined section is inclined upward toward the direction of the first joint, the fourth bending section is bent upward, and the second joint section is connected to the air outlet joint.

8. The muffler according to claim 7, characterized in that: A diverter column is respectively provided in the first bending section, the second bending section, the third bending section and the fourth bending section.

9. The muffler according to claim 7, characterized in that: A partition is provided on the outside of the flow channel tube, and the partition is connected to the inner wall of the accommodating cavity, and the accommodating cavity is respectively formed with a first cavity and a second cavity on both sides of the partition; the first joint section is provided with a first through hole for connecting the first cavity and the channel, and the vertical section is provided with a second through hole for connecting the second cavity and the channel.

10. The muffler according to claim 9, characterized in that: An installation groove is provided around the inner wall of the accommodating cavity, and the partition is inserted into the installation groove.

11. The muffler according to claim 1, characterized in that: One end of the diverter column facing the air inlet direction of the channel is an arc-shaped surface, and along the air inlet direction, the thickness of the diverter column first increases and then decreases.

12. The muffler according to claim 1, characterized in that: The diverter column protrudes from the flow channel tube and abuts against the wall surface of the accommodating cavity.

13. The muffler according to claim 1, characterized in that: The shell includes a first shell part and a second shell part, the upper end of the first shell part is provided with one of an annular groove or a convex edge, the lower end of the second shell part is provided with the other of the annular groove or the convex edge, and the convex edge is inserted into the annular groove.

14. A compressor, characterized in that: It comprises a shell, a compression assembly, an air intake pipe and the silencer according to any one of claims 1 to 13, wherein the compression assembly and the silencer are both arranged inside the shell, the air intake pipe passes through the shell and is connected to the air intake connector of the silencer, and the air outlet connector is connected to the air intake end of the compression assembly.

15. Refrigeration equipment, characterized in that Including the compressor according to claim 14.

Images