Exhaust silencers, compressors and household appliances

Abstract

The present invention discloses an exhaust muffler, a compressor, and a household appliance, wherein the exhaust muffler includes a muffler body, a partition assembly, an air inlet pipe, and an air outlet pipe. The muffler body has a muffler cavity and an air inlet and an air outlet connected to the muffler cavity. The partition assembly is disposed within the muffler cavity and divides the muffler cavity into a first cavity connected to the air inlet and a second cavity connected to the air outlet. The partition assembly includes a connecting pipe connecting the first cavity and the second cavity. The air inlet pipe is connected to the first cavity through the air inlet. The air outlet pipe is connected to the second cavity through the air outlet. At least one of the connecting pipe, the air inlet pipe, and the air outlet pipe has a main flow channel and a secondary flow channel located outside the main flow channel. The above-mentioned exhaust muffler can strike a balance between noise reduction and energy consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of mufflers, and in particular to an exhaust muffler, a compressor and a household appliance. Background Art

[0002] Refrigerators are a common household appliance in modern life. As living standards improve, people's expectations for refrigerator noise and energy efficiency are also increasing. The compressor is the heart of the refrigerator, and the exhaust structure is a crucial exhaust flow path for the compressor. The design of the compressor exhaust structure must consider not only noise, but also cooling capacity and energy efficiency (COP). Balancing noise and energy efficiency has become a key research topic in compressor exhaust structure design. Summary of the Invention

[0003] The main purpose of the present invention is to provide an exhaust muffler that takes both noise and energy consumption into consideration.

[0004] To achieve the above-mentioned object, the present invention proposes an exhaust muffler comprising:

[0005] A silencer body having a silencer cavity and an air inlet and an air outlet communicated with the silencer cavity;

[0006] a partition assembly disposed in the muffler cavity and dividing the muffler cavity into a first cavity communicating with the air inlet and a second cavity communicating with the air outlet, the partition assembly comprising a connecting pipe connecting the first cavity and the second cavity;

[0007] an air inlet pipe, connected to the first cavity through the air inlet; and

[0008] an air outlet pipe, connected to the second cavity through the air outlet;

[0009] Wherein, at least one of the connecting pipe, the air inlet pipe and the air outlet pipe has a main flow channel and a secondary flow channel located outside the main flow channel.

[0010] In one embodiment, the partition assembly further includes a partition plate disposed in the silencing cavity and separating the first cavity and the second cavity. The connecting pipe is passed through the partition plate and is spaced apart from the air inlet pipe and the air outlet pipe, respectively.

[0011] In one embodiment, the partition plate is provided with a mounting hole for the connecting pipe to pass through;

[0012] The outer wall of the connecting pipe is sealedly connected to the inner wall of the mounting hole;

[0013] Alternatively, a gap flow channel is formed between the outer wall of the connecting pipe and the inner wall of the mounting hole.

[0014] In one embodiment, the partition assembly further includes a partition plate, which is disposed in the silencing cavity and separates the first cavity and the second cavity. A mounting hole is provided on the partition plate, and the connecting pipe is passed through the mounting hole to define a gap flow channel between the outer wall of the connecting pipe and the inner wall of the mounting hole. The connecting pipe is docked with and connected to the exhaust pipe, and at least one of the connecting pipe and the exhaust pipe has the main flow channel and the secondary flow channel.

[0015] In one embodiment, the connecting pipe is a straight pipe or a curved pipe.

[0016] In one embodiment, there are a plurality of secondary flow channels, and the plurality of secondary flow channels are arranged at intervals and surround the primary flow channel.

[0017] In one embodiment, the cross-section of the secondary flow channel is circular, arc-shaped or irregularly shaped, and the irregular shape includes a first arc segment, a second arc segment, a third arc segment and a fourth arc segment connected end to end in sequence, the first arc segment corresponds to the third arc segment and constitutes the arc-shaped portion of the irregular shape, and the second arc segment and the fourth arc segment correspond to and constitute two circular portions of the irregular shape.

[0018] In one embodiment, the air inlet pipe is a curved pipe and / or the air outlet pipe is a curved pipe.

[0019] The present invention also provides a compressor comprising the above-mentioned exhaust muffler.

[0020] The present invention also provides a household appliance comprising the above-mentioned compressor.

[0021] When using the above-mentioned exhaust silencer, the above-mentioned exhaust silencer is assembled at the exhaust hole of the compressor, and the compressed refrigerant enters the first cavity through the air inlet pipe, then enters the second cavity through the connecting pipe, and finally is discharged through the air outlet pipe. Due to the coordination of the air inlet pipe, the first cavity, the connecting pipe, the air inlet pipe, the second cavity and the air outlet pipe, the exhaust pulsation of the compressor is reduced, thereby reducing the exhaust noise of the compressor. Moreover, compared with a flow channel that only includes a main flow channel, the composite flow channel that includes both the main flow channel and the secondary flow channel has a smaller fluid flow resistance, a higher cooling capacity and a lower input force, thereby improving the energy efficiency ratio of the compressor. Compared with a flow channel that only includes a large inner diameter (whose inner diameter is roughly the same as the inner diameter of the flow channel corresponding to the secondary flow channel), the composite flow channel that includes both the main flow channel and the secondary flow channel has an increased acoustic impedance and a better sound insulation effect. Therefore, the above-mentioned exhaust silencer can take into account both noise and energy consumption, and can achieve a higher energy efficiency ratio while reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a perspective exploded schematic diagram of an exhaust muffler according to an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the separation component in FIG.

[0025] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the intake pipe;

[0026] Figure 4 is a schematic top view of a partition assembly according to another embodiment of the present invention;

[0027] Figure 5 is a schematic top view of a partition assembly according to another embodiment of the present invention;

[0028] Figure 6 is a schematic top view of a partition assembly according to another embodiment of the present invention;

[0029] Figure 7 is a perspective exploded schematic diagram of an exhaust muffler according to another embodiment of the present invention;

[0030] Figure 8 for Figure 7 A partial enlarged view of point A in the middle;

[0031] Figure 9 This is a schematic diagram of the end structure of the connecting pipe of the partition assembly of the exhaust muffler according to another embodiment of the present invention.

[0032] Description of Figure Numbers:

[0033]

[0034]

[0035] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] The present invention provides an exhaust muffler.

[0040] In the embodiment of the present invention, Figure 1-Figure 3 As shown, the exhaust muffler 10 includes a muffler body 200 , a partition assembly 300 , an air inlet pipe 400 and an air outlet pipe 500 .

[0041] The muffler body 200 has a muffler chamber 202 and an air inlet 204 and an air outlet 206 communicating with the muffler chamber 202. A partition assembly 300 is disposed within the muffler chamber 202 and divides the muffler chamber 202 into a first chamber 210a communicating with the air inlet 204 and a second chamber 220a communicating with the air outlet 206. The partition assembly 300 includes a connecting pipe 310, connecting the first chamber 210a and the second chamber 220a. The connecting pipe 310 connects the first chamber 210a and the second chamber 220a. The air inlet pipe 400 communicates with the first chamber 210a through the air inlet 204. The air outlet pipe 500 communicates with the second chamber 220a through the air outlet 206.

[0042] In this embodiment, at least one of the connecting pipe 310, the intake pipe 400, and the outlet pipe 500 has a main channel and a secondary channel located outside the main channel. The main channel on the connecting pipe 310 is the first main channel 312, and the secondary channel on the partition assembly 300 is the first secondary channel 314. The main channel on the intake pipe 400 is the second main channel 410, and the secondary channel on the intake pipe 400 is the second secondary channel 420. The main channel on the outlet pipe 500 is the third main channel, and the secondary channel on the outlet pipe 500 is the third secondary channel.

[0043] When the exhaust muffler 10 is used, it is mounted on the exhaust port of the compressor. The compressed refrigerant enters the first cavity 210a through the intake pipe 400, then enters the second cavity 220a through the connecting pipe 310, and finally is discharged through the outlet pipe 500. Due to the coordination of the intake pipe 400, the first cavity 210a, the connecting pipe 310, the intake pipe 400, the second cavity 220a, and the outlet pipe 500, the exhaust pulsation of the compressor is reduced, thereby reducing the exhaust noise of the compressor. Moreover, compared with a flow channel including only a main flow channel, the composite flow channel including both the main flow channel and the secondary flow channel has a smaller fluid flow resistance, a higher cooling capacity, and a lower input force, thereby improving the energy efficiency ratio of the compressor. Compared with a flow channel including only a large inner diameter (whose flow area is approximately the same as the sum of the flow area of ​​the main flow channel and the flow area of ​​the secondary flow channel), the composite flow channel including both the main flow channel and the secondary flow channel has an increased acoustic impedance and a better noise reduction effect. Therefore, the exhaust muffler 10 can take both noise and energy consumption into consideration, and can achieve a high energy efficiency ratio while reducing noise.

[0044] In this embodiment, the exhaust muffler 10 is made of a material that is resistant to high temperatures, thereby preventing damage to the exhaust muffler 10 from the high-temperature, high-pressure refrigerant discharged into the exhaust muffler 10 by the compressor. Specifically, in this embodiment, the muffler body 200 and the partition assembly 300 are made of steel, and the inlet pipe 400 and the outlet pipe 500 are made of copper.

[0045] In this embodiment, the muffler body 200 includes a first muffler package 210 and a second muffler package 220, which together form the muffler cavity 202. The partition assembly 300 is located at the boundary between the first muffler package 210 and the second muffler package 220. It forms a first cavity 210a with the first muffler package 210 and a second cavity 220a with the second muffler package 220. This greatly facilitates the manufacture of the muffler body 200 and the installation of the partition assembly 300 within the muffler cavity 202.

[0046] In this embodiment, the air inlet 204, the partition assembly 300 and the air outlet 206 are arranged in sequence, which is more conducive to balancing noise and energy consumption.

[0047] Specifically, in the present embodiment, a sink 212 is provided in one end of the first silencer bag 210 away from the air inlet 204. The partition assembly 300 is provided on the sink 212. Specifically, in the present embodiment, after the first silencer bag 210, the second silencer bag 220 and the partition assembly 300 are manufactured, the partition assembly 300 is first assembled on the sink 212 of the first silencer bag 210, and then the edge of the first silencer bag 210 away from the air inlet 204 and the edge of the second silencer bag 220 away from the air outlet 206 are connected. More specifically, in the present embodiment, the partition assembly 300 is transferred to the first silencer bag 210 by welding, and the first silencer bag 210 and the second silencer bag 220 are also connected together by welding.

[0048] In this embodiment, if Figure 2 As shown, the connecting pipe 310 has a main channel and a secondary channel located outside the main channel, wherein the main channel located on the connecting pipe 310 is a first main channel 312, and the secondary channel located on the connecting pipe 310 is a first secondary channel 314. The first main channel 312 and the first secondary channel 314 both connect the first cavity 210a and the second cavity 220a.

[0049] In this embodiment, the first main channel 312 and the first secondary channel 314 are both located on the connecting tube 310. That is, in this embodiment, the first main channel 312 and the first secondary channel 314 are integrated into the same connecting tube 310. Compared to providing two connecting tubes, one with the first main channel 312 and the other with the first secondary channel 314, integrating the first main channel 312 and the first secondary channel 314 into the same connecting tube 310 can simplify the structure of the partition assembly 300.

[0050] In this embodiment, the partition assembly 300 further includes a partition plate 320. The partition plate 320 is disposed within the silencing chamber 202 and divides the silencing chamber 202 into a first cavity 210a communicating with the air inlet 204 and a second cavity 220a communicating with the air outlet 206. Specifically, in this embodiment, the partition plate 320 is disposed within the silencing chamber 202 at the boundary between the first silencing package 210 and the second silencing package 220. The partition plate 320 forms the first cavity 210a with the first silencing package 210 and the second cavity 220a with the second silencing package 220. This facilitates the partition assembly 300 to separate the silencing chamber 202 into the first cavity 210a and the second cavity 220a. It can be understood that in other embodiments, when the cross-sectional area of ​​the connecting tube 310 is large enough to satisfy the connecting tube 310 to separate the silencer chamber 202 into the first cavity 202a and the second cavity 202b, that is, when the connecting tube 310 integrates the two functions of conducting and separating the first cavity 202a and the second cavity 202b, the above-mentioned partition plate 320 can be omitted to achieve the effect of simplifying the structure of the partition component 300.

[0051] In this embodiment, a mounting hole 322 is formed on the partition plate 320, and the connecting pipe 310 is passed through the mounting hole 322. The outer wall of the connecting pipe 310 and the inner wall of the mounting hole 322 may be sealed or not.

[0052] In this embodiment, the outer wall of the connecting tube 310 is sealedly connected to the inner wall of the mounting hole 322. For example, in some embodiments, the connecting tube 310 and the partition plate 320 are integrally formed, in which case the outer wall of the connecting tube 310 can be considered to be sealedly connected to the inner wall of the mounting hole 322. For another example, in some embodiments, the connecting tube 310 and the mounting hole 322 have an interference fit, in which case the outer wall of the connecting tube 310 can also be considered to be sealedly connected to the inner wall of the mounting hole 322. The sealed connection between the outer wall of the connecting tube 310 and the inner wall of the mounting hole 322 greatly facilitates a secure connection between the connecting tube 310 and the partition plate 320.

[0053] In some embodiments, as Figure 4 As shown, the outer wall of the connecting pipe 310 is not sealed to the inner wall of the mounting hole 322, that is, a gap exists between the outer wall of the connecting pipe 310 and the inner wall of the mounting hole 322. In this case, it can be considered that a gap flow channel 316 is formed between the outer wall of the connecting pipe 310 and the inner wall of the mounting hole 322. In this way, the partition assembly 300 having the first main flow channel 312, the first secondary flow channel 314, and the gap flow channel 316 further facilitates the above-mentioned intake muffler 10 to achieve a balanced balance between noise and energy consumption, achieving both noise reduction and a high energy efficiency ratio.

[0054] In some embodiments, as Figure 4 As shown, the outer wall of the connecting pipe 310 is connected to the inner wall of the mounting hole 322 via a plurality of connecting ribs 330 . The plurality of connecting ribs 330 are arranged at intervals and surround the connecting pipe 310 , thereby defining a plurality of gap flow channels 316 .

[0055] In this embodiment, if Figure 1 and Figure 2As shown, the connecting tube 310 is disposed through the mounting hole 322, with one end of the connecting tube 310 extending into the first cavity 210a and the other end of the connecting tube 310 extending into the second cavity 220a. This allows the connecting tube 310 to be longer without changing the thickness of the partition plate 320, thereby further facilitating noise reduction. It is understood that in other embodiments, one end of the connecting tube 310 may extend into either the first cavity 210a or the second cavity 220a, while the other end of the connecting tube 310 is received within the mounting hole 322 of the partition plate 320. It is understood that in other embodiments, when the partition plate 320 is thicker and the connecting tube 310 is shorter, the ends of the connecting tube 310 may be substantially flush with the sides of the partition plate 320. In other words, neither end of the connecting tube 310 extends into the first cavity 210a or the second cavity 220a, but rather is received within the mounting hole 322.

[0056] In this embodiment, if Figure 1 and Figure 2 As shown, both ends of the connecting pipe 310 are spaced apart from the air inlet pipe 400 and the air outlet pipe 500, respectively. That is, the end of the connecting pipe 310 away from the air outlet pipe 500 is spaced apart from the air inlet pipe 400 by a certain distance, and the end of the connecting pipe 310 away from the air inlet pipe 400 is spaced apart from the air outlet pipe 500 by a certain distance. In this way, the refrigerant entering the first cavity 210a through the air inlet pipe 400 can be silenced in the first cavity 210a before entering the second cavity 220a through the connecting pipe 310. In addition, the refrigerant entering the second cavity 220a can be silenced in the second cavity 220a before being discharged through the air outlet pipe 500.

[0057] In some embodiments, as Figure 4As shown, when a gap flow channel 316 is formed between the outer wall of the connecting pipe 310 and the inner wall of the mounting hole 322, the first cavity 210a and the second cavity 220a can communicate with each other through the gap flow channel 316. In this case, the end of the connecting pipe 310 away from the air inlet pipe 400 can be connected to and communicate with the end of the air outlet pipe 500 close to the air inlet pipe 400. The distance between the end of the connecting pipe 310 away from the air inlet pipe 400 and the end of the air outlet pipe 500 close to the air inlet pipe 400 is zero. The connecting pipe 310 and the air outlet pipe 500 can be regarded as a continuous pipe, that is, the connecting pipe 310 and the air outlet pipe 500 can be combined into one. In this way, after the refrigerant entering the first cavity 210a through the inlet pipe 400 is silenced in the first cavity 210a, part of the refrigerant can be directly discharged through the connecting pipe 310 and the outlet pipe 500 in sequence. Part of the refrigerant enters the second cavity 220a through the gap flow channel 316. After being silenced in the second cavity 220a, it is then discharged through the gap flow channel 316, the connecting pipe 310, and the outlet pipe 500 in sequence. The connecting pipe 310 and the outlet pipe 500 are combined into one, which can simplify the structure of the exhaust muffler 10. It should be noted that when the connecting pipe 310 and the outlet pipe 500 are combined into one, at least one of the connecting pipe 310 and the outlet pipe 500 has a main flow channel and a secondary flow channel located outside the main flow channel.

[0058] In some embodiments, when the connecting pipe 310 and the air outlet pipe 500 are combined into one, it can be considered that the connecting pipe 310 is fixed to the muffler body 200 through the air outlet pipe 500. In this case, the connecting pipe 310 may not be fixed to the partition plate 320. When the connecting pipe 310 is not fixed to the partition plate 320, the connecting pipe 310 may be omitted. Figure 4 With reference to the connecting rib 330 , it can be considered that the connecting pipe 310 has an annular gap flow channel 316 outside, and the annular gap flow channel 316 surrounds the connecting pipe 310 .

[0059] In some embodiments, as Figure 5 and Figure 6 As shown, the first main flow channel 312 may be located on the connecting pipe 310, while the first secondary flow channel 314 may be located on the partition plate 320. Forming the first secondary flow channel 314 on the partition plate 320 is relatively easy, and by providing the first secondary flow channel 314 on the partition plate 320, existing pipes can be used as the connecting pipe 310, eliminating the need for additional design and / or manufacturing of the connecting pipe 310. This can reduce the difficulty in designing and / or manufacturing the partition assembly 300, thereby reducing the cost of the partition assembly 300.

[0060] like Figure 5As shown, a plurality of first secondary flow channels 314 are formed on the partition plate 320, and the plurality of first secondary flow channels 314 are arranged at intervals and surround the connecting pipe 310. A mounting hole 322 is formed on the partition plate 320. The mounting hole 322 is located in the area enclosed by the plurality of second channels 304. The connecting pipe 310 having the first main flow channel 312 is passed through the mounting hole 322. It should be noted that at this time, the outer wall of the connecting pipe 310 can be sealed and connected to the inner wall of the mounting hole 322, or it can be unsealed and connected to the inner wall of the mounting hole 322. When the outer wall of the connecting pipe 310 is unsealed and connected to the inner wall of the mounting hole 322, a gap is formed between the outer wall of the connecting pipe 310 and the inner wall of the mounting hole 322. Figure 4 The gap flow channel 316 is shown, and the gap flow channel 316 is located between the first main flow channel 312 and the first secondary flow channel 314 .

[0061] like Figure 6 As shown, the partition plate 320 is provided with a mounting hole 322. The connecting pipe 310 having the first main flow channel 312 is passed through the mounting hole 322, and the outer wall of the connecting pipe 310 is connected to the inner wall of the mounting hole 322 by a plurality of connecting ribs 330. The plurality of connecting ribs 330 are arranged at intervals and surround the connecting pipe 310, and define a plurality of first secondary flow channels 314. At this time, Figure 6 The first secondary flow channel 314 is shown with Figure 4 The interstitial flow passages 316 shown are substantially uniform.

[0062] In some embodiments, as Figure 2 As shown, the connecting pipe 310 is a straight pipe. Figure 7 As shown, the connecting pipe 310 is a curved pipe. In the arrangement direction of the first cavity 210a and the second cavity 220a, a curved pipe with the same length at both ends is longer than a straight pipe (similar to the case of the same displacement but different distances), which is more conducive to noise reduction.

[0063] In this embodiment, the air inlet pipe 400 is disposed on the air inlet 204, and the end of the air inlet pipe 400 near the air outlet pipe 500 extends into the first cavity 210a. This facilitates communication between the air inlet pipe 400 and the first cavity 210a through the air inlet 204. It is understood that in other embodiments, the end of the air inlet pipe 400 near the air outlet pipe 500 may not extend into the first cavity 210a, but may instead be housed within the air inlet 204. It should be noted that in this embodiment, the outer wall of the air inlet pipe 400 is sealed to the inner wall of the air inlet 204; for example, the air inlet pipe 400 and the air inlet 204 have an interference fit.

[0064] In this embodiment, the outlet pipe 500 is disposed on the air outlet 206, and the end of the outlet pipe 500 near the air inlet pipe 400 extends into the second cavity 220a. This facilitates communication between the outlet pipe 500 and the second cavity 220a through the air outlet 206. It is understood that in other embodiments, the end of the outlet pipe 500 near the air inlet pipe 400 may not extend into the second cavity 220a, but may instead be housed within the air outlet 206. It should be noted that in this embodiment, the outer wall of the outlet pipe 500 is sealed to the inner wall of the air outlet 206; for example, the outlet pipe 500 and the air outlet 206 have an interference fit.

[0065] In this embodiment, the air inlet pipe 400 is a curved pipe, and the air outlet pipe 500 is also a curved pipe. It is understood that in other embodiments, at least one of the air inlet pipe 400 and the air outlet pipe 500 can also be a straight pipe.

[0066] In this embodiment, there are multiple secondary flow channels, which are arranged at intervals and surround the primary flow channel. Figure 2 As shown, taking the connecting pipe 310 as an example, there are multiple first secondary flow channels 314, and the multiple first secondary flow channels 314 are arranged at intervals and surround the first main flow channel 312. Figure 3 As shown, taking the intake pipe 400 as an example, there are multiple second secondary flow channels 420, which are arranged at intervals and surround the second main flow channel 410. The multiple secondary flow channels arranged at intervals and surrounding the main flow channel not only facilitates the simultaneous formation of the main flow channel and the secondary flow channels on at least one of the connecting pipe 310, the intake pipe 400, and the outlet pipe 500, but also facilitates full utilization of the space outside the main flow channel. It is understood that in other embodiments, the main flow channel and the secondary flow channels on the connecting pipe 310 can also be arranged side by side.

[0067] In this embodiment, the plurality of secondary flow channels are arranged at intervals and surround the primary flow channel. Specifically, in this embodiment, the plurality of secondary flow channels are arranged at equal intervals. This allows for a more uniform flow of the refrigerant outside the primary flow channel. It will be appreciated that in other embodiments, the plurality of secondary flow channels may be arranged at intervals and surround the primary flow channel multiple times, and are not limited to being arranged at intervals and surround the primary flow channel once.

[0068] In some embodiments, as Figure 2 As shown, there is one main channel with a circular cross-section, and eight secondary channels with a circular (ring) cross-section. Taking connecting pipe 310 as an example, there is one first main channel 312 with a circular cross-section, and eight first secondary channels 314 with a circular cross-section. In this case, the cross-section of connecting pipe 310 can be considered to have a lotus root-like pattern.

[0069] In some embodiments, as Figure 3As shown, there is one main flow channel with a circular cross-section, and two secondary flow channels with an arcuate cross-section (arc ring). Taking the intake pipe 400 as an example, there is one second main flow channel 410 with a circular cross-section, and two second secondary flow channels 420 with an arcuate cross-section.

[0070] In some embodiments, as Figure 7 and Figure 8 As shown, there is one main flow channel, the cross-section of which is circular, and three secondary flow channels, the cross-section of which is arc-shaped (arc-shaped ring). Taking the connecting pipe 310 as an example, there is one first main flow channel 312, the cross-section of which is circular, and there are three first secondary flow channels 314, the cross-section of which is arc-shaped.

[0071] In some embodiments, as Figure 9 As shown, the cross-sectional shape of the secondary flow channel is irregular (irregular ring). Among them, the irregular shape includes a first arc segment 314a, a second arc segment 314b, a third arc segment 314c and a fourth arc segment 314d connected end to end, the first arc segment 314a and the third arc segment 314c correspond to and constitute an irregular arc portion, and the second arc segment 314b and the fourth arc segment correspond to and constitute two irregular circular portions 314d. At this time, it can be considered that the middle part of the irregular shape is arc-shaped and the two ends of the irregular shape are circular. Specifically, in this embodiment, the number of main channels is one, the cross-sectional shape of the main channel is circular, the number of secondary flow channels is five, and the cross-sectional shape of the secondary flow channels is irregular. Taking the connecting pipe 310 as an example, the cross-sectional shape of the first main channel 312 is circular, the number of the first main channel 312 is one, the cross-sectional shape of the first secondary flow channel 314 is irregular, and the number of the first secondary flow channel 314 is five.

[0072] In the above embodiments, the cross-sectional shape of the secondary flow channel is circular, arc-shaped or irregular. It is understood that the cross-sectional shape of the secondary flow channel is not limited to the above forms, but can also be any other regular or irregular shape. In the above embodiments, the number of main channels is one, and the cross-sectional shape of the main channels is circular. It is understood that the number of main channels is not limited to one, and the number of main channels can also be multiple (greater than or equal to two). When the number of main channels is multiple, the multiple main channels are arranged at intervals. It is understood that the cross-sectional shape of the main channel is not limited to a circle, but can also be any other regular or irregular shape, such as the above-mentioned arc shape and the above-mentioned irregular shape.

[0073] In the above Figure 1-Figure 3 In the embodiment shown, the partition assembly 300 and the air inlet pipe 400 both have a main flow channel and a secondary flow channel located outside the main flow channel. Figure 7 and Figure 8In the illustrated embodiment, the partition assembly 300 has a primary channel and a secondary channel located outside the primary channel. It is understood that in other embodiments, the outlet pipe 500 may also have a primary channel and a secondary channel located outside the primary channel. It is understood that in other embodiments, the outlet pipe 500, the partition assembly 300, and / or the inlet pipe 400 may all have a primary channel and a secondary channel located outside the primary channel.

[0074] The present invention further provides a compressor, which includes the above-mentioned exhaust muffler, wherein the above-mentioned exhaust muffler is arranged in a housing of the compressor, and the air inlet pipe 400 of the above-mentioned exhaust muffler is connected to the exhaust hole of the compressor.

[0075] The present invention also provides a household appliance comprising the above-mentioned compressor. In some embodiments, the household appliance may be a refrigerator. In some embodiments, the household appliance may be an air conditioner. In some embodiments, the household appliance may be a humidifier.

[0076] The above descriptions are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present description and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An exhaust muffler, characterized in that: include: A silencer body having a silencer cavity and an air inlet and an air outlet communicated with the silencer cavity; a partition assembly disposed in the muffler cavity and dividing the muffler cavity into a first cavity communicating with the air inlet and a second cavity communicating with the air outlet, the partition assembly comprising a connecting pipe connecting the first cavity and the second cavity; an air inlet pipe, connected to the first cavity through the air inlet; and an air outlet pipe, connected to the second cavity through the air outlet; Among them, at least one of the connecting pipe, the air inlet pipe and the air outlet pipe has a main flow channel and a secondary flow channel located outside the main flow channel, and its two ends are connected with the secondary flow channel through the main flow channel, so that the refrigerant in the main flow channel and the secondary flow channel can flow in the same direction, one main flow channel is provided, and multiple secondary flow channels are provided, and the multiple secondary flow channels are arranged at intervals and surround the main flow channel.

2. The exhaust muffler according to claim 1, characterized in that The partition assembly further includes a partition plate disposed in the muffler cavity and separating the first cavity and the second cavity. The connecting pipe is passed through the partition plate and is spaced apart from the air inlet pipe and the air outlet pipe, respectively.

3. The exhaust muffler according to claim 2, characterized in that The partition plate is provided with a mounting hole for the connecting pipe to pass through; The outer wall of the connecting pipe is sealedly connected to the inner wall of the mounting hole; Alternatively, a gap flow channel is formed between the outer wall of the connecting pipe and the inner wall of the mounting hole.

4. The exhaust muffler according to claim 1, wherein: The partition assembly also includes a partition plate, which is arranged in the silencing cavity and separates the first cavity and the second cavity. A mounting hole is opened on the partition plate, and the connecting pipe is passed through the mounting hole and defines a gap flow channel between the outer wall of the connecting pipe and the inner wall of the mounting hole. The connecting pipe is docked with and connected to the air outlet pipe, and at least one of the connecting pipe and the air outlet pipe has the main flow channel and the secondary flow channel.

5. The exhaust muffler according to any one of claims 2 to 4, characterized in that: The connecting pipe is a straight pipe or a curved pipe.

6. The exhaust muffler according to claim 1, wherein: There are multiple secondary flow channels, which are arranged at intervals and surround the primary flow channel.

7. The exhaust muffler according to claim 6, characterized in that The cross-section of the secondary flow channel is circular, arc-shaped or irregular, and the irregular shape includes a first arc segment, a second arc segment, a third arc segment and a fourth arc segment connected end to end in sequence, the first arc segment corresponds to the third arc segment and constitutes the arc-shaped portion of the irregular shape, and the second arc segment and the fourth arc segment correspond to and constitute two circular portions of the irregular shape.

8. The exhaust muffler according to claim 1, wherein: The air inlet pipe is a curved pipe and / or the air outlet pipe is a curved pipe.

9. A compressor, characterized in that: The invention comprises the exhaust muffler according to any one of claims 1 to 8.

10. A household appliance, characterized in that: Comprising the compressor of claim 9.

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