CN215633609U - Suction muffler, compressor and household appliance - Google Patents

Abstract

The utility model discloses a suction muffler, a compressor and a household appliance, wherein the suction muffler comprises a shell and a separation assembly, and the shell is provided with a silencing cavity; the separation assembly is arranged in the silencing cavity and divides the silencing cavity into a first cavity and a second cavity, the separation assembly is provided with a first flow passage and a second flow passage, the first flow passage and the second flow passage are communicated with the first cavity and the second cavity, the second flow passages are multiple, and the second flow passages are distributed at intervals and surround the first flow passages. The air suction silencer can give consideration to noise and energy consumption, and can achieve the effect of high energy efficiency ratio while reducing noise.

Description

Suction muffler, compressor and household appliance

Technical Field

The utility model relates to the technical field of silencers, in particular to a suction silencer, a compressor and a household appliance.

Background

The refrigerator is one of the common household appliances used in modern residents. Along with the improvement of the living standard of people, the requirements of people on the noise and the energy consumption of the refrigerator are higher and higher. The compressor is the heart of the refrigerator, and the suction structure is an important suction flow passage of the compressor. The design of the suction structure in the compressor must take into account both the noise and the cooling capacity and the energy efficiency ratio (COP). How to consider both noise and energy consumption becomes an important research point for designing the suction structure of the compressor.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a suction muffler, aiming at considering both noise and energy consumption.

In order to achieve the above object, the present invention provides a suction muffler comprising:

a housing having a sound-deadening chamber; and

the separation component is arranged in the silencing cavity and separates the silencing cavity into a first cavity and a second cavity, the separation component is provided with a first flow passage and a second flow passage, the first flow passage and the second flow passage are communicated with the first cavity and the second cavity, the second flow passages are multiple and multiple, and the second flow passages are arranged at intervals and surround the first flow passages.

In an embodiment, the partition assembly includes a communication pipe, and the first flow passage and the second flow passage are both located on the communication pipe.

In an embodiment, the partition assembly further includes a partition plate, the partition plate is disposed at a boundary between the first cavity and the second cavity, the partition plate is provided with a mounting hole, and the communicating pipe is inserted into the mounting hole;

the communicating pipe is in interference insertion connection with the mounting hole;

or a gap flow passage is formed between the outer wall of the communicating pipe and the inner wall of the mounting hole.

In an embodiment, the partition component includes a partition plate and a communicating pipe, the partition plate is disposed at a boundary of the first cavity and the second cavity, the communicating pipe is disposed on the partition plate in a penetrating manner, the first flow channel is located on the communicating pipe, and the second flow channel is located on the partition plate.

In an embodiment, the partition plate is provided with a mounting hole, the mounting hole is located in an area defined by the second channels, and the communicating pipe is arranged on the mounting hole in a penetrating manner;

or, the mounting hole has been seted up to the division board, communicating pipe wears to locate on the mounting hole, just the outer wall of communicating pipe with the inner wall of mounting hole is connected through a plurality of splice bars, and is a plurality of the splice bar interval is arranged and is encircleed communicating pipe sets up, and inject a plurality ofly the second runner.

In one embodiment, the communicating pipe is a straight pipe or an elbow pipe.

In an embodiment, the cross section of the second flow channel is circular, arc-shaped or irregular, the irregular shape includes a first arc section, a second arc section, a third arc section and a fourth arc section which are sequentially connected end to end, the first arc section corresponds to the third arc section and forms an arc portion of the irregular shape, and the second arc section corresponds to the fourth arc section and forms two circular portions of the irregular shape.

In an embodiment, the suction muffler further comprises an outlet pipe having a third flow passage and a fourth flow passage, both of which communicate with the second cavity.

In one embodiment, the first chamber, the partition member and the second chamber are arranged along a first direction;

the shell comprises a first shell part and a second shell part, wherein the first shell part and the second shell part are butted in a second direction and enclose to form the sound attenuation cavity.

The utility model also provides a compressor, which comprises the suction muffler.

The utility model also provides a household appliance comprising the compressor.

When the air suction silencer is used, the refrigerant enters the first cavity, then enters the second cavity through the separation assembly and is finally discharged. Because first cavity, partition subassembly and the cooperation of second cavity, reduced the noise of breathing in of compressor. Compared with a flow passage only comprising the first flow passage, the flow resistance of the fluid of the composite flow passage simultaneously comprising the first flow passage and the auxiliary second flow passage is smaller, the cold quantity is higher, and the inlet force is lower, so that the energy efficiency ratio of the compressor can be improved. Therefore, the air suction silencer can give consideration to both noise and energy consumption, and can realize the effect of higher energy efficiency ratio while reducing noise. Compared with the mode that only one second flow channel is arranged on the outer side of the first flow channel, the mode that the plurality of second flow channels are arranged at intervals and surround the first flow channel can better give consideration to noise and energy consumption.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is an exploded perspective view of a suction muffler in accordance with an embodiment of the present invention;

FIG. 2 is a top view of the top portion of the first shell portion shown in FIG. 1;

FIG. 3 is a schematic top view of a partition assembly according to another embodiment of the present invention;

FIG. 4 is a schematic top view of a partition assembly according to another embodiment of the present invention;

FIG. 5 is a schematic top view of a partition assembly according to another embodiment of the present invention;

FIG. 6 is a schematic top view of a partition assembly according to another embodiment of the present invention;

FIG. 7 is an exploded perspective view of a suction muffler in accordance with another embodiment of the present invention;

FIG. 8 is an exploded perspective view of a suction muffler in accordance with another embodiment of the present invention;

FIG. 9 is a top view of the top portion of the first shell portion shown in FIG. 8;

FIG. 10 is an exploded perspective view of a suction muffler in accordance with another embodiment of the present invention;

FIG. 11 is a top view of the top portion of the first shell portion of FIG. 10;

fig. 12 is a schematic plan view of the communication pipe in fig. 11.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a suction muffler.

In an embodiment of the present invention, as shown in fig. 1 and 2, the suction muffler 10 includes a housing 200 and a partition assembly 300.

The housing 200 has a sound-deadening chamber 202 and an air inlet 204 and an air outlet 206 communicating with the sound-deadening chamber 202.

The partition member 300 is provided in the sound-deadening chamber 202, and partitions the sound-deadening chamber 202 into a first chamber 202a communicating with the air inlet 204 and a second chamber 202b communicating with the air outlet 206. The partition member 300 has a first flow passage 302 and a second flow passage 304 located outside the first flow passage 302, and the first flow passage 302 and the second flow passage 304 communicate with the first cavity 202a and the second cavity 202 b.

When the suction muffler 10 is used, the refrigerant enters the first cavity 202a through the inlet 204, then enters the second cavity 202b through the partition member 300, and finally exits through the outlet 206. Since the air inlet 204, the first cavity 202a, the partition member 300, and the second cavity 202b are engaged with the air outlet 206, the suction noise of the compressor is reduced. Moreover, compared with a flow passage only comprising the first flow passage 302, the composite flow passage simultaneously comprising the first flow passage 302 and the auxiliary second flow passage 304 has smaller fluid flow resistance, higher cold energy and lower inlet force, thereby improving the energy efficiency ratio of the compressor, and compared with a flow passage only comprising a large inner diameter (the flow area of which is approximately the same as the sum of the flow area of the first flow passage 302 and the flow area of the second flow passage 304), the composite flow passage simultaneously comprising the first flow passage 302 and the second flow passage 304 has higher acoustic impedance and better silencing effect. Therefore, the suction muffler 10 can achieve both noise and power consumption, and can reduce noise and achieve a high energy efficiency ratio.

In this embodiment, the second flow channel 304 is multiple, and the multiple second flow channels 304 are arranged at intervals and surround the first flow channel 302. Compared with the mode that only one second flow channel 304 is arranged on the outer side of the first flow channel 302, the mode that the plurality of second flow channels 304 are arranged at intervals and surround the first flow channel 302 can better take noise and energy consumption into consideration.

In this embodiment, the second flow channels 304 are arranged at intervals and surround the first flow channels 302 for a circle. Specifically, in the present embodiment, the plurality of second flow channels 304 are arranged at equal intervals. Thus, the refrigerant can flow more uniformly around the outer circumference of the first flow channel 302. It is understood that in other embodiments, the plurality of second flow channels 304 may surround the first flow channel 302 for a plurality of times, and is not limited to the plurality of second flow channels 304 surrounding the first flow channel 302 for one time.

In the present embodiment, the partition assembly 300 includes a communication pipe 310. The first flow passage 302 and the second flow passage 304 are both located on the communicating pipe 310. That is, in the present embodiment, the first flow channel 302 and the second flow channel 304 are integrated on the same communication pipe 310. For setting up two communicating pipes, a communicating pipe has first runner 302, another communicating pipe has the mode of second runner 304, first runner 302 and the mode that second runner 304 are integrated on same communicating pipe 310, can simplify the structure of separating subassembly 300, and more do benefit to and design first runner 302 as the mainstream way, and design second runner 304 as the secondary flow way, through the big runner area of mainstream way and the little and many little runner area synergy of secondary flow way, thereby can be better compromise noise and energy consumption.

In the present embodiment, the partition assembly 300 further includes a partition plate 320. The partition plate 320 is disposed in the sound-deadening chamber 202 and divides the sound-deadening chamber 202 into the first chamber 202a and the second chamber 202b, that is, the partition plate 320 is disposed at a boundary between the first chamber 202a and the second chamber 202 b. The communication pipe 310 is inserted through the partition plate 320. The provision of the partition plate 320 greatly facilitates the partition assembly 300 to partition the sound-deadening chamber 202 into the first chamber 202a and the second chamber 202 b. It is understood that, in other embodiments, when the area of the cross section of the communication pipe 310 is large enough to satisfy the requirement that the communication pipe 310 divides the sound-deadening chamber 202 into the first chamber 202a and the second chamber 202b, that is, when the communication pipe 310 integrates two functions of conducting and dividing the first chamber 202a and the second chamber 202b, the separation plate 320 may be omitted, and the effect of simplifying the structure of the partition assembly 300 is achieved.

In this embodiment, partition 320 has mounting hole 322 formed therein, and communication pipe 310 is inserted into mounting hole 322. The outer wall of the communication pipe 310 may or may not be hermetically connected to the inner wall of the mounting hole 322.

In the present embodiment, the outer wall of the communication pipe 310 is hermetically connected to the inner wall of the mounting hole 322. For example, in some embodiments, the communication pipe 310 is integrally formed with the separation plate 320, and at this time, the outer wall of the communication pipe 310 may be considered to be hermetically connected with the inner wall of the mounting hole 322; for another example, in some embodiments, the communication pipe 310 is in interference fit with the mounting hole 322, and at this time, the outer wall of the communication pipe 310 may be considered to be in sealed connection with the inner wall of the mounting hole 322. The outer wall of the communication pipe 310 is hermetically coupled to the inner wall of the mounting hole 322, which is very convenient for the communication pipe 310 to be firmly coupled to the partition plate 320.

In other embodiments, as shown in fig. 3, the outer wall of communication pipe 310 may not be hermetically connected to the inner wall of mounting hole 322, that is, there may also be a gap between the outer wall of communication pipe 310 and the inner wall of mounting hole 322, and in this case, it may be considered that gap flow channel 306 is formed between the outer wall of communication pipe 310 and the inner wall of mounting hole 322. Therefore, the air suction silencer 10 is more beneficial to both noise and energy consumption, and achieves the effect of higher energy efficiency ratio while reducing noise.

In some embodiments, as shown in fig. 3, when the communication pipe 310 is in clearance fit with the mounting hole 322, it may be considered that the communication pipe 310 has an annular clearance flow channel 306 outside, and the annular clearance flow channel 306 surrounds the communication pipe 310. In some embodiments, as shown in fig. 4, the outer wall of the communication pipe 310 is connected to the inner wall of the mounting hole 322 by a plurality of connection ribs 330, and the plurality of connection ribs 330 are arranged at intervals and around the communication pipe 310, so as to define a plurality of gap flow paths 306.

In other embodiments, as shown in fig. 5, the partition assembly 300 includes a communication pipe 310 and a partition plate 320. The partition plate 320 is provided in the sound-deadening chamber 202, and partitions the sound-deadening chamber 202 into the first chamber 202a and the second chamber 202 a. The communication pipe 310 is inserted through the partition plate 320. The first flow path 302 is located on the connection pipe 310, and the second flow path 304 is located on the separation plate 320. The difficulty of forming the second flow channel 304 on the partition plate 320 is low, and the second flow channel 304 is disposed on the partition plate 320, and the existing pipeline can be used as the communicating pipe 310, so that the communicating pipe 310 does not need to be additionally designed and/or manufactured, the difficulty of designing and/or manufacturing the partition assembly 300 can be reduced, and the effect of reducing the cost of the partition assembly 300 can be achieved.

In some embodiments, as shown in fig. 5, the partition plate 320 is formed with a plurality of second flow passages 304, and the plurality of second flow passages 304 are arranged at intervals and surround the communication pipe 310. The partition plate 320 is formed with a mounting hole 322. The mounting holes 322 are located in an area defined by the plurality of second channels 304. The connection pipe 310 having the first flow path 302 is inserted into the mounting hole 322. At this time, the outer wall of communication pipe 310 may be in sealed connection with the inner wall of mounting hole 322, or may not be in sealed connection with the inner wall of mounting hole 322, and when the outer wall of communication pipe 310 is not in sealed connection with the inner wall of mounting hole 322, gap flow channel 306 shown in fig. 3 or 4 is formed between the outer wall of communication pipe 310 and the inner wall of mounting hole 322, and gap flow channel 306 is located between first flow channel 302 and second flow channel 304.

In some embodiments, as shown in fig. 6, the divider plate 320 is perforated with mounting holes 322. The connection pipe 310 having the first flow path 302 is inserted into the mounting hole 322, and an outer wall of the connection pipe 310 is connected to an inner wall of the mounting hole 322 by a plurality of connection ribs 330. The plurality of connection ribs 330 are arranged at intervals and around the communication pipe 310, and define a plurality of second flow passages 304. At this point, the second flow channel 304 shown in FIG. 6 substantially coincides with the clearance flow channel 306 shown in FIG. 4.

In this embodiment, as shown in fig. 1 and 2, the communication pipe 310 is disposed through the mounting hole 322, one end of the communication pipe 310 extends into the first cavity 202a, and the other end of the communication pipe 310 extends into the second cavity 202 b. As such, the communication pipe 310 may have a longer length without changing the thickness of the partition plate 320, thereby facilitating noise reduction. It is understood that in other embodiments, one end of the communication pipe 310 may extend into the first cavity 202a or the second cavity 202b, and the other end of the communication pipe 310 may be received in the mounting hole 322 of the partition plate 320. It is understood that, in other embodiments, when the thickness of the partition plate 320 is larger and the length of the communication pipe 310 is shorter, two ends of the communication pipe 310 may also be substantially flush with two sides of the partition plate 320, respectively, that is, two ends of the communication pipe 310 do not extend into the first cavity 202a and the second cavity 202b, but are both received in the mounting hole 322.

In some embodiments, as shown in fig. 1 and 2, communication tube 310 is a straight tube. In some embodiments, as shown in fig. 7, the communication tube 310 is an elbow. In the arrangement direction of the first cavity 202a and the second cavity 202b, the bent pipe with the same projection length has a longer flow channel length than the straight pipe, so that noise and energy consumption are both considered.

In some embodiments, as shown in fig. 1 and 2, the number of first flow channels 302 is one, the cross-sectional shape of the first flow channels 302 is circular, the number of second flow channels 304 is ten, and the cross-sectional shape of the second flow channels 304 is circular (circular ring). At this time, the cross section of the communication pipe 310 may be considered to have a lotus-root-shaped pattern.

In some embodiments, as shown in fig. 8 and 9, the number of the first flow passages 302 is one, the cross-sectional shape of the first flow passages 302 is circular, the number of the second flow passages 304 is three, and the cross-sectional shape of the second flow passages 304 is arc-shaped (arc-shaped ring).

In some embodiments, as shown in fig. 10-12, the cross-sectional shape of the second flow channel 304 is a profiled (profiled ring). The special shape comprises a first arc section 304a, a second arc section 304b, a third arc section 304c and a fourth arc section 304d which are sequentially connected end to end, the first arc section 304a corresponds to the third arc section 304c and forms a special-shaped arc part, and the second arc section 304b corresponds to the fourth arc section and forms two special-shaped circular parts 304 d. At this time, the middle part of the special shape is arc-shaped, and the two ends of the special shape are round. Specifically, in the present embodiment, the number of the first flow channels 302 is one, the cross-sectional shape of the first flow channels 302 is circular, the number of the second flow channels 304 is five, and the cross-sectional shape of the second flow channels 304 is irregular.

In the above embodiment, the cross-sectional shape of the second flow passage 304 is circular, arc-shaped, or irregular. It is understood that the cross-sectional shape of the second flow channel 304 is not limited to the above forms, but may be any other regular or irregular shape. In the above embodiment, the number of the first flow channels 302 is one, and the cross-sectional shapes of the first flow channels 302 are circular. It is understood that the number of the first flow channels 302 is not limited to one, and the number of the first flow channels 302 may also be multiple (greater than or equal to two), and when the number of the first flow channels 302 is multiple, the multiple first flow channels 302 are arranged at intervals. It is understood that the cross-sectional shape of the first flow passage 302 is not limited to a circular shape, but may be any other regular or irregular shape, such as the arc shape described above, the irregular shape described above.

In the present embodiment, as shown in fig. 1, the suction muffler 10 further includes an inlet pipe 400. The inlet pipe 400 communicates with the first cavity 202a through the inlet port 204. The inlet pipe 400 is provided to greatly facilitate the discharge of the refrigerant into the suction muffler 10.

In the present embodiment, the inlet pipe 400 is disposed through the air inlet 204, and one end of the inlet pipe 400 near the partition assembly 300 extends into the first cavity 202 a. In this manner, it is very convenient for the inlet pipe 400 to communicate with the first cavity 202a through the inlet port 204. It is understood that in other embodiments, the end of the inlet tube 400 near the partition assembly 300 may not extend into the first cavity 202a, but rather may be received within the inlet 204. It should be noted that, in the present embodiment, the outer wall of the inlet pipe 400 is connected with the inner wall of the air inlet 204 in a sealing manner, for example, the inlet pipe 400 is in interference fit with the air inlet 204.

In the present embodiment, as shown in fig. 1, the suction muffler 10 further includes an outlet pipe 500. Outlet tube 500 has a third flow passage and a fourth flow passage located outside the third flow passage, both of which are in communication with second chamber 202b through outlet port 206. The outlet pipe 500 is arranged to facilitate the discharge of the refrigerant from the suction muffler 10, and the outlet pipe 500 including the third flow channel and the fourth flow channel is more favorable for considering noise and energy consumption, so that the effect of high energy efficiency ratio while reducing noise can be realized.

In this embodiment, the outlet pipe 500 is disposed through the outlet 206, and one end of the outlet pipe 500 near the separation assembly 300 extends into the second cavity 202 b. In this manner, it is very convenient for the outlet pipe 500 to communicate with the second cavity 202b through the outlet 206. It is understood that in other embodiments, the end of outlet tube 500 near separation element 300 may not extend into second cavity 202b, but rather may be received within outlet 206. It should be noted that, in this embodiment, the outer wall of the outlet tube 500 is connected to the inner wall of the outlet 206 in a sealing manner, for example, the outlet tube 500 is in interference fit with the outlet 206.

In this embodiment, the design of the third flow channel is substantially the same as the design of the first flow channel 302, and the design of the fourth flow channel is substantially the same as the design of the second flow channel 304, and will not be described in detail. For example, the number of the third flow passages is one, and the cross section of the third flow passage is circular; the number of the fourth flow channels is multiple, and the multiple fourth flow channels are distributed at intervals and arranged around the third flow channels; the fourth flow channels are arranged at equal intervals; the cross section of the fourth flow passage can be circular, arc-shaped or irregular.

In this embodiment, the inlet pipe 400 is a straight pipe, and the outlet pipe 500 is also a straight pipe. It is understood that in other embodiments, at least one of the inlet tube 400 and the outlet tube 500 may be an elbow.

In the present embodiment, as shown in fig. 1 and 2, the first chamber 202a, the partition member 300, and the second chamber 202b are arranged in the first direction. The housing 200 includes a first housing portion 210 and a second housing portion 220, the first housing portion 210 and the second housing portion 220 are butted in a second direction and enclose a sound-deadening chamber 202. The second direction intersects the first direction. Specifically, in the present embodiment, the second direction is perpendicular to the first direction. More specifically, in the present embodiment, the first direction is an up-down direction, and the second direction is a left-right direction. The casing 200 includes a first casing portion 210 and a second casing portion 220 disposed in left and right, that is, the above-described suction muffler 10 is a left and right divided suction muffler. The case 200 includes the first case portion 210 and the second case portion 220 disposed at left and right sides, which not only facilitates fabrication of the case 200, but also facilitates disposing the partition member 300 in the case 200, for example, the partition member 300 may be integrally formed with the first case portion 210 or the second case portion 220.

In the present embodiment, both the air inlet 204 and the air outlet 206 are located on the second shell portion 220. The partition member 300 is integrally formed with the first case portion 210. The utility model also provides a compressor, which comprises the suction muffler 10, wherein the suction muffler 10 is arranged in a shell of the compressor.

The utility model also provides a household appliance which comprises the 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.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (11)

1. A suction muffler, comprising:

a housing having a sound-deadening chamber; and

the separation component is arranged in the silencing cavity and separates the silencing cavity into a first cavity and a second cavity, the separation component is provided with a first flow passage and a second flow passage, the first flow passage and the second flow passage are communicated with the first cavity and the second cavity, the second flow passages are multiple and multiple, and the second flow passages are arranged at intervals and surround the first flow passages.

2. The suction muffler of claim 1, wherein the partition assembly includes a communication pipe, and the first flow passage and the second flow passage are both located on the communication pipe.

3. The suction muffler of claim 2, wherein the partition assembly further comprises a partition plate, the partition plate is disposed at a boundary between the first chamber and the second chamber, the partition plate is provided with a mounting hole, and the communication pipe is inserted into the mounting hole;

the communicating pipe is in interference insertion connection with the mounting hole;

or a gap flow passage is formed between the outer wall of the communicating pipe and the inner wall of the mounting hole.

4. The suction muffler of claim 1, wherein the partition assembly includes a partition plate and a communication pipe, the partition plate is disposed at a boundary between the first chamber and the second chamber, the communication pipe is inserted into the partition plate, the first flow passage is disposed on the communication pipe, and the second flow passage is disposed on the partition plate.

5. The suction muffler of claim 4, wherein the partition plate is provided with a mounting hole, the mounting hole is located in an area defined by the second flow passages, and the communication pipe is inserted into the mounting hole;

or, the mounting hole has been seted up to the division board, communicating pipe wears to locate on the mounting hole, just the outer wall of communicating pipe with the inner wall of mounting hole is connected through a plurality of splice bars, and is a plurality of the splice bar interval is arranged and is encircleed communicating pipe sets up, and inject a plurality ofly the second runner.

6. A suction muffler according to any one of claims 2 to 5, wherein the communicating pipe is a straight pipe or an elbow pipe.

7. The suction muffler of claim 1, wherein the second flow passage has a circular, arc or irregular cross-section, and the irregular shape comprises a first arc section, a second arc section, a third arc section and a fourth arc section which are sequentially connected end to end, the first arc section corresponds to the third arc section and forms an arc portion of the irregular shape, and the second arc section corresponds to the fourth arc section and forms two circular portions of the irregular shape.

8. The suction muffler of claim 1, further comprising an outlet pipe having a third flow passage and a fourth flow passage, the third flow passage and the fourth flow passage each communicating with the second cavity.

9. The suction muffler of claim 1, wherein the first chamber, the partition assembly, and the second chamber are arranged in a first direction;

the shell comprises a first shell part and a second shell part, wherein the first shell part and the second shell part are butted in a second direction and enclose to form the sound attenuation cavity.

10. A compressor, characterized in that it comprises a suction muffler according to any one of claims 1 to 9.

11. A household appliance comprising a compressor as claimed in claim 10.

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