Muffler, compressor and refrigeration apparatus

Abstract

This invention discloses a muffler, a compressor, and refrigeration equipment, relating to the field of compressor technology. The muffler includes a housing, a flow channel, and a flow divider. The flow channel is installed within the housing cavity, with its two ends connected to an inlet and an outlet connector, respectively. At least one flow divider is located between sections of the flow channel, dividing the channel into a first flow channel and a second flow channel, both ends of which are connected. Therefore, when refrigerant enters the flow channel through the inlet connector, it is diverted by the flow divider and enters the first and second flow channels, eventually merging again. The flow area in the first and second flow channels is smaller than that in a channel without a flow divider, increasing the refrigerant's operating resistance and consuming its energy. Furthermore, the merging of the flow channels further consumes refrigerant energy, effectively reducing aerodynamic noise and improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to a muffler, compressor and refrigeration equipment. Background Technology

[0002] Refrigerators are equipped with compressors to achieve cooling. During compressor operation, the refrigerant flows at a relatively high speed, resulting in significant noise. Therefore, a silencer is needed at the intake end of the compressor assembly. Related technologies use silencers with a serpentine pipe connecting to the intake manifold. The serpentine pipe's reciprocating bends dissipate the refrigerant's energy, thus reducing aerodynamic noise. However, the noise reduction effect is limited and cannot achieve truly effective noise reduction. Summary of the Invention

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

[0004] The present invention also proposes a compressor and refrigeration equipment having the above-mentioned silencer.

[0005] According to a first aspect of the present invention, a muffler includes: a housing having an internal cavity, the housing having an air inlet and an air outlet; a flow channel pipe installed in the cavity, the flow channel pipe having a channel formed therein, one end of the channel communicating with the air inlet and the other end of the channel communicating with the air outlet; and at least one diverter column disposed within a portion of the flow channel pipe, the diverter column dividing the channel within the portion into a first flow channel and a second flow channel, the first flow channel and the second flow channel being isolated in the extending direction of the diverter column.

[0006] The silencer according to embodiments of the present invention has at least the following beneficial effects: By installing a flow channel tube within the housing's receiving cavity, with both ends of the flow channel tube connected to an inlet and an outlet connector respectively, and at least one diverter column positioned between sections of the flow channel tube, the diverter column separates the flow channel into a first flow channel and a second flow channel, both ends of which are connected. Therefore, when refrigerant enters the flow channel tube through the inlet connector, it is diverted by the diverter column into the first and second flow channels, and then re-merges. The flow area in the first and second flow channels is smaller than that in channels without diverter columns, increasing the refrigerant's operating resistance and consuming more refrigerant energy. Furthermore, the merging of the flow channels further consumes more refrigerant energy, effectively reducing aerodynamic noise and improving the user experience.

[0007] 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, and the minimum flow area of ​​the first flow channel is greater than the minimum flow area of ​​the second flow channel.

[0008] According to some embodiments of the present invention, the flow channel includes a variable diameter section, the cross-sectional area of ​​the variable diameter section being larger than the cross-sectional area of ​​the flow channel at the inlet of the variable diameter section, and the flow divider is located within the variable diameter section.

[0009] According to some embodiments of the present invention, the variable diameter section includes a body portion and a protrusion extending outward toward the body portion, wherein the second flow channel is formed in the protrusion.

[0010] According to some embodiments of the present invention, a plurality of diversion columns are provided, and the plurality of diversion columns are spaced apart along the extension direction of the channel.

[0011] According to some embodiments of the present invention, the flow channel includes a plurality of bends, the plurality of bends are spaced apart, and each bend contains a flow divider column.

[0012] According to some embodiments of the present invention, the flow channel includes a first connector section, a first bend section, a horizontal section, a second bend section, a vertical section, a third bend section, an inclined section, a fourth bend section, and a second connector section connected in sequence. The first connector section is connected to the air inlet connector. The first bend section is bent downwards. The horizontal section extends horizontally. The second bend section is bent upwards. The vertical section extends vertically. The third bend section is bent toward the first connector. The inclined section is inclined upwards toward the first connector. The fourth bend section is bent upwards. The second connector section is connected to the air outlet connector.

[0013] According to some embodiments of the present invention, each of the first bend segment, the second bend segment, the third bend segment and the fourth bend segment is provided with a diversion column.

[0014] According to some embodiments of the present invention, a partition is provided on the outer side of the flow channel, the partition is connected to the inner wall of the receiving cavity, and the receiving cavity has a first cavity and a second cavity formed on both sides of the partition; the first connector 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.

[0015] According to some embodiments of the present invention, the inner wall of the receiving cavity is provided with a mounting groove, and the partition is inserted into the mounting groove.

[0016] According to some embodiments of the present invention, one end of the diverter column facing the air intake direction of the channel is an arc-shaped surface, and the thickness of the diverter column first increases and then decreases along the air intake direction.

[0017] According to some embodiments of the present invention, the diversion column protrudes from the flow channel and abuts against the wall of the receiving cavity.

[0018] According to some embodiments of the present invention, the housing includes a first housing portion and a second housing portion, the upper end of the first housing portion is provided with one of an annular groove or a convex edge, and the lower end of the second housing portion is provided with the other of the annular groove or the convex edge, the convex edge being inserted into the annular groove.

[0019] According to a second aspect of the present invention, a compressor includes a housing, a compression assembly, an intake pipe, and a muffler as described in the above embodiments. The compression assembly and the muffler are both disposed inside the housing. The intake pipe passes through the housing and is connected to the intake connector of the muffler. The outlet connector is connected to the intake end of the compression assembly.

[0020] The compressor according to embodiments of the present invention has at least the following beneficial effects: By employing the muffler of the first embodiment, the muffler is installed within the housing cavity of the casing via a flow channel, with both ends of the flow channel connected to an inlet connector and an outlet connector, respectively. At least one diverter column is disposed between a portion of the flow channel, dividing the channel into a first flow channel and a second flow channel, both ends of which are connected. Therefore, when refrigerant enters the flow channel through the inlet connector, it is diverted by the diverter column into the first and second flow channels, and then re-merges. The flow area in the first and second flow channels is smaller than that in channels without diverter columns, increasing the refrigerant's operating resistance and consuming its energy. Furthermore, the merging of the flow channels further consumes refrigerant energy, effectively reducing aerodynamic noise and improving the user experience.

[0021] A refrigeration device according to a third aspect of the present invention includes the compressor described in the above embodiments.

[0022] The refrigeration device according to embodiments of the present invention has at least the following beneficial effects: In the compressor of the second embodiment, the compressor's silencer is installed within the housing cavity via a flow channel, with both ends of the flow channel connected to an inlet connector and an outlet connector, respectively. At least one diverter column is disposed between a portion of the flow channel, dividing the channel into a first flow channel and a second flow channel, both ends of which are connected. Therefore, when refrigerant enters the flow channel through the inlet connector, it is diverted by the diverter column into the first and second flow channels, and then re-merges. The flow area in the first and second flow channels is smaller than that in channels without diverter columns, increasing the refrigerant's operating resistance and consuming its energy. Furthermore, the merging of the flow channels further consumes refrigerant energy, effectively reducing aerodynamic noise and improving the user experience.

[0023] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of a silencer according to an embodiment of the present invention; Figure 2 This is an exploded view of a silencer according to an embodiment of the present invention; Figure 3 This is a top view of a muffler according to an embodiment of the present invention; Figure 4 yes Figure 3 Sectional view at point AA; Figure 5 This is a schematic diagram of the structure of a muffler concealing a second housing according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the flow channel tube according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the first shell portion according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the second shell portion according to an embodiment of the present invention; Figure 9 This is an exploded view of a flow channel tube according to an embodiment of the present invention.

[0025] Figure label: Silencer 1000; Housing 100; Receiving cavity 110; First cavity 111; Second cavity 112; Mounting groove 113; First drain hole 114; Second drain hole 115; First shell portion 120; Air inlet connector 121; Protruding edge 122; Second shell portion 130; Air outlet connector 131; Annular groove 132; Flow channel 200; First pipe section 201; Second pipe section 202; Variable diameter section 203; Body section 204; Protrusion 205; Channel 210; First flow channel 211; Second flow channel 212; First connector section 220; First through hole 221; First bend section 230; Horizontal section 240; Second bend section 250; Vertical section 260; Second through hole 261; Third bend section 270; Inclined section 271; Fourth bend section 272; Second connector section 280; Partition plate 290; Diverter column 300; curved surface 310. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0028] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0029] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0030] Reference Figure 1 and Figure 2As shown, a silencer 1000 according to an embodiment of the present invention can be used in a compressor, particularly a reciprocating compressor. The compressor has a compression assembly, and the silencer 1000 is connected to the inlet end of the compression assembly. The silencer 1000 of this embodiment includes a housing 100, a flow channel 200, and a flow divider 300. A receiving cavity 110 is formed inside the housing 100, and the housing 100 is provided with an inlet connector 121 and an outlet connector 131. For example, the inlet connector 121 is located at a lower position on the side wall of the housing 100, and the outlet connector 131 is located at the upper end of the housing 100. The inlet connector 121 is used to connect to the suction pipe of the compressor, and the outlet connector 131 is connected to the inlet end of the compression assembly. The flow channel 200 is installed in the receiving cavity 110, one end of the flow channel 200 is connected to the inlet connector 121, and the other end is connected to the outlet connector 131, and a channel 210 is formed inside the flow channel 200. Therefore, the refrigerant will pass through the suction pipe, inlet connector 121, channel 210, outlet connector 131 in sequence, and finally enter the compression assembly.

[0031] Reference Figure 3 and Figure 4 As shown, the diverter column 300 is disposed within a portion of the flow channel 200, and the diverter column 300 divides the channel 210 within the pipe section into a first flow channel 211 and a second flow channel 212. The first flow channel 211 and the second flow channel 212 are isolated in the extending direction of the diverter column 300, which is also the flow direction of the refrigerant within the channel 210. The diverter column 300 and the flow channel 200 can be connected by bonding, integral molding, etc. The inlet end of the first flow channel 211 is connected to the inlet end of the second flow channel 212, and the outlet end of the first flow channel 211 is connected to the outlet end of the second flow channel 212. It should be noted that the first flow channel 211 is a structure formed between one side wall of the diverter column 300 and a portion of the inner wall of the opposite channel 210, and the second flow channel 212 is a structure formed between the other side wall of the diverter column 300 and a portion of the inner wall of the opposite channel 210.

[0032] Understandably, by adopting the above scheme, when the refrigerant enters the channel 210 of the flow channel pipe 200 through the inlet connector 121, it is diverted by the flow divider 300 and enters the first flow channel 211 and the second flow channel 212 respectively, and finally merges again. The flow area in the second flow channel 212 is smaller than that in the channel 210 without the flow divider 300, increasing the refrigerant's operating resistance and consuming refrigerant energy. At the same time, the merging process further consumes refrigerant energy, effectively reducing refrigerant aerodynamic noise and improving the user experience.

[0033] It's important to note that reducing noise often significantly impacts the compressor's cooling capacity and COP, leading to decreased compressor performance. Compressor cooling capacity refers to the amount of heat absorbed by the compressor from a low-temperature heat source per unit time; it's a crucial indicator of a compressor's cooling ability. Compressor COP is the ratio of cooling capacity to electrical power, representing the ratio of the system's output cooling or heating capacity to the electrical power consumed. A higher COP indicates higher system efficiency and lower energy consumption.

[0034] To reduce noise while minimizing the impact on compressor cooling capacity and COP, 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 the area on the cross-section within the first flow channel 211 perpendicular to the line S1, on a projection plane perpendicular to the length direction of the diverter column 300. The length direction of the diverter column 300 is... Figure 2 The front and back directions are shown.

[0035] With 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 some refrigerants, rather than increase the flow resistance of all refrigerants. This reduces the kinetic energy of the refrigerant while reducing the impact on the compressor's cooling capacity and COP.

[0036] Table 1: Comparison of Noise, Cooling Capacity, and COP of Different Solutions

[0037] The compressor has a displacement of 7.5cc and a constant speed of 50Hz. According to the experimental data in Table 1, compared to the scheme without the splitter column 300, the noise level in this embodiment decreased from 37.99dB to 34.53dB after adding the splitter column, a difference of 3.46dB, representing a decrease of approximately 9.11%. The cooling capacity decreased from 110.2w to 110.1w, a difference of 0.1w, representing a decrease of 0.091%. The COP decreased from 1.789 to 1.713, a difference of 0.076, representing a decrease of 0.425%. The above experimental data shows that the scheme with the splitter column 300 has a relatively small impact on the compressor's cooling capacity and COP, while also effectively reducing the compressor's aerodynamic noise.

[0038] Reference Figure 4 and Figure 6As shown, in an embodiment of the present invention, the flow channel 200 includes a variable diameter section 203, the cross-sectional area of ​​which is larger than the cross-sectional area of ​​the flow channel 200 at the inlet of the variable diameter section 203, and the flow divider 300 is located within the variable diameter section 203. It should be noted that the cross-sectional area of ​​the variable diameter section 203 refers to the flow area of ​​the channel 210 after ignoring the flow divider 300. The cross-sectional area of ​​the flow channel 200 at the inlet of the variable diameter section 203 refers to the flow area of ​​the channel 210 at that location. It is understood that setting the flow divider 300 reduces the flow area of ​​the channel 210 at the flow divider 300, affecting the compressor's intake volume. Therefore, by placing the flow divider 300 within the variable diameter section 203, the flow area of ​​the channel 210 at the flow divider 300 can be appropriately increased to ensure that the compressor's intake volume meets the requirements.

[0039] Continue to refer to Figure 4 and Figure 6 As shown, in an embodiment of the present invention, the variable diameter section 203 includes a body portion 204 and a protrusion 205 protruding outward toward the body portion 204, and a second flow channel 212 is formed in the protrusion 205. The body portion 204 is the pipe section of the flow channel pipe 200 without the flow divider column 300, and the protrusion 205 is a structure formed by increasing the flow area of ​​the channel 210. By providing the protrusion 205 protruding outward along the body portion 204, it can cooperate with the flow divider column 300 to form the second flow channel 212, ensuring that the intake volume of the compressor meets the requirements.

[0040] Reference Figure 4 As shown, in an embodiment of the present invention, multiple diversion columns 300 are provided, and the multiple diversion columns 300 are spaced apart along the extension direction of the flow channel 200. For example, four diversion columns 300 are provided, and the four diversion columns 300 are arranged sequentially at intervals along the extension direction of the flow channel 200. Of course, the number of diversion columns 300 can also be other, such as two, three, five, etc., and the appropriate number is selected according to the actual situation. It can be understood that each diversion column 300 can divide the channel 210 into a first flow channel 211 and a second flow channel 212 at the corresponding position. That is, at every certain distance, the refrigerant in the channel 210 will be divided into two airflows at the position of the diversion column 300, and then converge back into a complete airflow until it is finally discharged from the silencer 1000. With the above scheme, the kinetic energy of the refrigerant will be reduced by a portion each time it passes through a diversion column 300. Therefore, the method of setting multiple diversion columns 300 can further reduce the aerodynamic noise of the refrigerant.

[0041] Continue to refer to Figure 4As shown in the embodiment of the present invention, the flow channel 200 includes multiple bends, which are arranged sequentially along the extension direction of the flow channel 200, and each bend contains a flow divider 300. The bends can be variable diameter sections 203. Therefore, the flow channel 200 is in a reciprocating bend shape, which can consume the energy of the refrigerant, thereby reducing aerodynamic noise. The noise generated by the compressor mainly originates from medium-frequency and high-frequency noise. Because the bends contain flow dividers 300, vortices are formed when the refrigerant in the first flow channel 211 and the second flow channel 212 converge, further reducing the kinetic energy of the refrigerant and effectively weakening high-frequency noise from 3000Hz to 8000Hz, thus reducing the aerodynamic noise of the refrigerant.

[0042] Among them, the multiple bending segments are the first bending segment 230, the second bending segment 250, the third bending segment 270, and the fourth bending segment 272, which are referred to further. Figure 4 As shown, in an embodiment of the present invention, the flow channel 200 includes a first connector section 220, a first bend section 230, a horizontal section 240, a second bend section 250, a vertical section 260, a third bend section 270, an inclined section 271, a fourth bend section 272, and a second connector section 280 connected in sequence. The first connector section 220 is connected to the air inlet connector 121. The central axis of the first connector section 220 and the central axis of the air inlet connector 121 can be coplanar or coincident, which is beneficial for the refrigerant to directly enter the first connector section 220 after passing through the air inlet connector 121, thereby improving the air intake efficiency. The first bend section 230 is bent downwards, and the horizontal section 240 extends in a horizontal direction, which can be... Figure 4 The flow channel 200 is designed with a reciprocating bending structure, which can extend the flow path of the refrigerant while further consuming the energy of the refrigerant by utilizing the bending of the first bending section 230, the second bending section 250, and the third bending section 270 towards the first connector, for example, the third bending section 270 bending upwards in a right-to-left direction. The inclined section 271 is inclined upwards towards the first connector, for example, the inclined section 271 inclined upwards in a right-to-left direction. The fourth bending section 272 bends upwards, and the second connector section 280 is connected to the air outlet connector 131. Therefore, the flow channel 200 is designed with a reciprocating bending structure, which can extend the flow path of the refrigerant while using the bending of the first bending section 230, the second bending section 250, and the third bending section 270 to effectively reduce the aerodynamic noise of the refrigerant.

[0043] Continue to refer to Figure 4As shown in the embodiment of the present invention, a flow divider 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 flow divider 300 with the serpentine flow channel 200, the first flow channel 211 and the second flow channel 212 are formed at the bend sections. Therefore, the refrigerant passing through the first flow channel 211 and the second flow channel 212 converges to form a vortex, 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.

[0044] Continue to refer to Figure 4 As shown in the embodiment of the present invention, the end of the diversion column 300 facing the air intake direction of the channel 210 is an arc-shaped surface 310. Along the air intake direction of the channel 210, the thickness of the diversion column 300 first increases and then decreases. It should be noted that the thickness of the diversion column 300 refers to: on a projection plane perpendicular to the length direction of the diversion column 300, the longest line connecting the two ends of the diversion column 300 along the refrigerant flow direction is S1, and the direction perpendicular to the line S1 is the thickness direction of the diversion column 300. The length direction of the diversion column 300 is... Figure 2 The front-to-back direction is shown in the diagram. For example, the cross-section of the diverter column 300 can be teardrop-shaped. Therefore, designing the end of the diverter column 300 facing the air intake direction of the channel 210 as an arc-shaped surface 310 can effectively guide the refrigerant to flow in the direction of the first flow channel 211 and the second flow channel 212, improving the smoothness of the refrigerant intake at the air intake ends of the first flow channel 211 and the second flow channel 212. Furthermore, the thickness of the diverter column 300 first increases and then decreases, which can better guide the direction of the refrigerant, thereby improving 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 200, with the appropriate shape selected according to the actual situation.

[0045] Reference Figure 5 and Figure 6As shown, in an embodiment of the present invention, a partition 290 is provided on the outer side of the flow channel 200. The partition 290 can be integrally injection molded with the flow channel 200, or the partition 290 can be connected to the flow channel 200 by adhesive bonding or hot-melt connection. The partition 290 is connected to the inner wall of the receiving cavity 110, and the receiving 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 and right directions of the housing 100. The first cavity 111 and the first connector section 220 are both located on the left side of the housing 100, and the second cavity 112 is located on the right side of the housing 100. A part of the structure of the flow channel 200 is located in the first cavity 111, and another part of the structure of the flow channel 200 is located in the second cavity 112. The first connector 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.

[0046] It is understandable that the first through-hole 221 and the second through-hole 261 are respectively located at the first joint section 220 and the vertical section 260, instead of a bend. This is because the refrigerant at the first intake pipe and the vertical section 260 is in laminar or near-laminar flow, so the impact of setting the first through-hole 221 and the second through-hole 261 on the refrigerant flow is minimal. If the first through-hole 221 and the second through-hole 261 were located at the bend, the refrigerant would need to turn at the bend, easily leading to a large amount of refrigerant leakage through the first through-hole 221 and the second through-hole 261, resulting in a decrease in the compressor's cooling capacity and COP.

[0047] By configuring a first cavity 111, a second cavity 112, a first through-hole 221, and a second through-hole 261, the first cavity 111 constitutes an expansion cavity, and the second cavity 112 constitutes a resonant cavity. The expansion cavity can achieve a certain noise reduction effect across the entire frequency band. The principle of the expansion cavity is to utilize the discontinuous structure along the sound propagation path to generate a change in sound impedance, thereby causing sound reflection and achieving the purpose of noise reduction. The resonant cavity has a better noise reduction effect on specific frequency bands. The different ratios of the volume of the second through-hole 261 to the volume of the resonant cavity can determine the targeted attenuation of noise at specific frequencies. The principle of the resonant chamber is that when the frequency of the incoming sound wave resonates with the silencer 1000, the frictional loss is large, absorbing more energy, thereby achieving the purpose of noise reduction.

[0048] Reference Figure 4As shown in the embodiment of the present invention, both the first through hole 221 and the second through hole 261 are square holes. Setting them as square holes allows for convenient adjustment of the size of the first through hole 221 and the second through hole 261, and effectively increases 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 specific frequency bands can be silencing, meeting the usage requirements under different conditions. 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 a suitable solution can be selected according to the actual situation.

[0049] In order to form the first cavity 111 and the second cavity 112 within the receiving cavity 110, and to simultaneously determine the relative positions of the flow channel 200 and the housing 100, refer to Figure 7 As shown, in an embodiment of the present invention, the inner wall of the receiving cavity 110 is provided with a mounting groove 113, and the partition 290 is inserted into the mounting groove 113. The mounting groove 113 can be formed by providing two protruding ribs on the wall surface of the receiving cavity 110, spaced apart in the left-right direction, with the mounting groove 113 formed between the two ribs. Alternatively, the mounting groove 113 can also be a structure formed by a recess in the inner wall of the receiving cavity 110, depending on the actual situation. The mounting groove 113 surrounds the wall surface of the receiving cavity, and when the partition 290 is inserted into the mounting groove 113, it can divide the receiving cavity 110 into a first cavity 111 and a second cavity 112 arranged in the left-right direction. The combination of the partition 290 and the mounting groove 113 makes the assembly process simple and convenient, and the assembly efficiency high. At the same time, by utilizing the cooperation between the partition 290 and the mounting groove 113, the leakage of refrigerant from the gap between the partition 290 and the mounting groove 113 into another cavity can be effectively reduced, thereby improving the sealing effect.

[0050] To further restrict the position of the flow channel 200, refer to... Figure 5 and Figure 6 As shown, in an embodiment of the present invention, the diversion column 300 protrudes from the flow channel tube 200 and abuts against the inner wall of the receiving cavity 110. When multiple diversion columns 300 are provided, all multiple diversion columns 300 abut against the wall of the receiving cavity 110. It can be understood that the abutment fit between the diversion column 300 and the wall of the receiving cavity 110 can effectively prevent the flow channel tube 200 from shaking within the receiving cavity 110, thereby improving the stability and reliability of the installation of the flow channel tube 200.

[0051] Reference Figure 7As shown, in an embodiment of the present invention, the bottom wall of the first cavity 111 is provided with a first drain hole 114, and the bottom wall of the second cavity 112 is provided with a second drain hole 115. It should be noted that during the refrigerant flow, it mixes with lubricating oil. The lubricating oil is in a gaseous state and follows the refrigerant to complete the refrigeration cycle. The lubricating oil lubricates related components, delaying friction and wear, and improving the service life of related components. The lubricating oil may change from gas to liquid within the flow channel 200. Liquid lubricating oil cannot enter the compression assembly to avoid the adverse effects of liquid slugging. Therefore, the bottom walls of the first cavity 111 and the second cavity 112 are respectively provided with a first drain hole 114 and a second drain hole 115 to discharge the lubricating oil accumulated in the first cavity 111 and the second cavity 112 into the compressor housing, whereby the lubricating oil can finally re-enter the refrigerant loop circulation.

[0052] Reference Figure 7 and Figure 8 As shown, in an 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 can be understood that dividing the housing 100 into the form of the first housing portion 120 and the second housing portion 130 allows for assembly in which, after the flow channel pipe 200 is installed into the receiving groove, 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 has high assembly efficiency.

[0053] To ensure the sealing at the connection between the first shell portion 120 and the second shell portion 130, refer to Figure 7 and Figure 8 As shown, in an embodiment of the present invention, the upper end of the first shell portion 120 is provided with one of an annular groove 132 or a protruding edge 122, and the lower end of the second shell portion 130 is provided with the other of an annular groove 132 or a protruding edge 122, with the protruding edge 122 inserted into the annular groove 132. For example, as... Figure 7 As shown, the upper end of the first housing 100 has an opening, and a protruding edge 122 surrounds the upper end of the first housing 100, with the protruding edge 122 surrounding the opening. The lower end of the second housing 100 has an annular groove 132, and the protruding edge 122 is inserted into the annular groove 132. Subsequently, the protruding edge 122 is fixedly inserted into the annular groove 132 by heat fusion, and the first housing 100 and the second housing 100 are non-removable after heat fusion. Alternatively, the first housing 100 and the second housing 100 can be fixedly connected by applying adhesive in the annular groove 132.

[0054] It is understandable that, through the cooperation of the convex edge 122 and the annular groove 132, a reciprocating labyrinth structure is formed between the convex edge 122 and the annular groove 132, thereby effectively preventing the refrigerant from leaking out through the gap between the convex edge 122 and the annular groove 132, and improving the sealing performance between the first housing 100 and the second housing 100.

[0055] Reference Figure 9 As shown in the embodiment of the present invention, the flow channel 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 heat fusion connection, bonding, etc., to ensure the sealing of the first tube portion 201 and the second tube portion 202 at the connection point and avoid air leakage. It can be understood that dividing the flow channel 200 into a first tube portion 201 and a second tube portion 202 is beneficial to the injection molding of the flow channel 200, simplifies the production steps, and improves production efficiency.

[0056] Since the inside of the compressor is typically at a high temperature, to prevent the muffler 1000 from deforming and malfunctioning at high temperatures, in this embodiment of the invention, the housing 100 and the flow channel 200 are made of thermosetting materials. Thermosetting materials are materials that can be cured after heat treatment or chemical reaction, and their cured form is irreversible at high temperatures. After heating or radiation, the thermosetting molecules of a thermosetting material cross-link to form a stable network structure, which cannot be reformed once cured, thus exhibiting excellent stability and durability. Thermosetting materials can be epoxy resins, phenolic resins, silicone resins, etc. Epoxy resins have excellent mechanical and insulating properties and good chemical corrosion resistance. Phenolic resins have high strength, high hardness, and wear resistance. Silicone resins have high temperature resistance, corrosion resistance, and excellent electrical insulation properties, and are often used to manufacture high-temperature sealing materials. Therefore, a suitable thermosetting material should be selected based on the specific circumstances.

[0057] One embodiment of the compressor of the present invention includes a housing, a compression assembly, an intake pipe, and a silencer 1000 as described in the previous embodiment. Both the compression assembly and the silencer 1000 are located inside the housing. The intake pipe passes through the housing and connects to the intake connector 121 of the silencer. The exhaust connector 131 communicates with the intake end of the compression assembly. The compressor can be a reciprocating compressor, installed inside 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 total mass of the compressor. The compression assembly is suspended in the compressor housing 100 by 3 to 4 springs, effectively reducing the transmission of vibration from the compression assembly to the compressor housing 100. The compressor in this embodiment of the invention uses the silencer 1000 described in the previous embodiment. The silencer 1000 is installed in the receiving cavity 110 of the housing 100 via a flow channel 200, and the two ends of the flow channel 200 are respectively connected to an inlet connector 121 and an outlet connector 131. A flow divider 300 also passes through the channel 210 of the flow channel 200. The channel 210 forms a first flow channel 211 and a second flow channel 212 at the flow divider 300, and the two 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 200 through the inlet connector 121, it enters the first flow channel 211 and the second flow channel 212 respectively under the diversion of the flow divider 300, and finally rejoins. The flow area in the second flow channel 212 is smaller than that in the channel 210 without the design of the diversion column 300. This increases the running resistance of the refrigerant and consumes the energy of the refrigerant. At the same time, the energy of the refrigerant can be further consumed after the flow converges. This effectively reduces the aerodynamic noise of the refrigerant and improves the user experience.

[0058] Since the compressor adopts all the technical solutions of the silencer 1000 in the above embodiments, it has at least all the beneficial effects brought about by the technical solutions in the above embodiments, which will not be repeated here.

[0059] A refrigeration device according to one embodiment of the present invention can be a refrigerator, an air conditioner, etc. The refrigeration device includes the compressor of the above embodiments. The refrigeration device of this embodiment uses the compressor of the above embodiments. The compressor's silencer 1000 is installed in the receiving cavity 110 of the housing 100 via a flow channel 200. The two ends of the flow channel 200 are respectively connected to an inlet connector 121 and an outlet connector 131. A flow divider 300 also passes through the channel 210 of the flow channel 200. The channel 210 forms a first flow channel 211 and a second flow channel 212 at the flow divider 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 200 through the inlet connector 121, it is diverted by the flow divider 300 and enters the first flow channel 211 and the second flow channel 212 respectively, and finally re-merges. The flow area in the second flow channel 212 is smaller than that in the channel 210 without the design of the diversion column 300. This increases the running resistance of the refrigerant and consumes the energy of the refrigerant. At the same time, the energy of the refrigerant can be further consumed after the flow converges. This effectively reduces the aerodynamic noise of the refrigerant and improves the user experience.

[0060] Since the refrigeration equipment adopts all the technical solutions of the compressor in the above embodiments, it has at least all the beneficial effects brought about by the technical solutions in the above embodiments, which will not be repeated here.

[0061] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A silencer, characterized in that, include: The housing has an internal cavity and is equipped with an air inlet and an air outlet. A flow channel is installed inside the receiving cavity. A channel is formed inside the flow channel. 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 disposed within a portion of the flow channel pipe, the diverter column dividing the channel within the pipe section into a first flow channel and a second flow channel, the first flow channel and the second flow channel being isolated from each other in the direction of extension of the diverter column.

2. The silencer 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, and the minimum flow area of ​​the first flow channel is greater than the minimum flow area of ​​the second flow channel.

3. The silencer according to claim 1 or 2, characterized in that: The flow channel includes a variable diameter section, the cross-sectional area of ​​which is larger than the cross-sectional area of ​​the flow channel at the inlet of the variable diameter section, and the flow divider is located within the variable diameter section.

4. The silencer according to claim 3, characterized in that: The variable diameter section includes a body portion and a protrusion that protrudes outward toward the outside of the body portion, and the second flow channel is formed in the protrusion.

5. The silencer according to claim 1, characterized in that: The diversion columns are provided in multiple manner, and the multiple diversion columns are spaced apart along the extension direction of the channel.

6. The silencer according to claim 5, characterized in that: The flow channel includes multiple bends, which are spaced apart, and each bend contains a flow divider column.

7. The silencer according to claim 1, characterized in that: The flow channel includes a first connector section, a first bend section, a horizontal section, a second bend section, a vertical section, a third bend section, an inclined section, a fourth bend section, and a second connector section connected in sequence. The first connector section is connected to the air inlet connector. The first bend section is bent downwards. The horizontal section extends horizontally. The second bend section is bent upwards. The vertical section extends vertically. The third bend section is bent toward the first connector. The inclined section is inclined upwards toward the first connector. The fourth bend section is bent upwards. The second connector section is connected to the air outlet connector.

8. The silencer according to claim 7, characterized in that: Each of the first bend, the second bend, the third bend, and the fourth bend is provided with a diversion column.

9. The silencer according to claim 7, characterized in that: The outer side of the flow channel is provided with a partition, which is connected to the inner wall of the receiving cavity. The receiving cavity has a first cavity and a second cavity formed on both sides of the partition. The first connector 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 silencer according to claim 9, characterized in that: The inner wall of the receiving cavity is provided with an installation groove, and the partition is inserted into the installation groove.

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

12. The silencer according to claim 1, characterized in that: The diversion column protrudes from the flow channel and abuts against the wall of the receiving cavity.

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

14. A compressor, characterized in that: The device includes a housing, a compression assembly, an intake pipe, and a muffler according to any one of claims 1 to 13, wherein the compression assembly and the muffler are both disposed inside the housing, the intake pipe passes through the housing and is connected to the intake connector of the muffler, and the exhaust connector is connected to the intake end of the compression assembly.

15. A refrigeration device, characterized in that, Includes the compressor as described in claim 14.

Images