CN214836983U

CN214836983U - Suction muffler, compressor and household appliance

Info

Publication number: CN214836983U
Application number: CN202120665204.2U
Authority: CN
Inventors: 黄刚; 李娟�
Original assignee: Anhui Meizhi Compressor Co Ltd
Current assignee: Anhui Meizhi Compressor Co Ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-23
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses a suction muffler, a compressor and a household appliance, wherein, the suction muffler comprises a shell and a coiled pipe component, and the shell is provided with a silencing cavity; the coiled pipe assembly is arranged in the silencing cavity and divides the silencing cavity into a first cavity and a second cavity, the coiled pipe assembly comprises a coiled pipe, a part of the coiled pipe, which is positioned in the first cavity, is provided with a first expanding hole, and a part of the coiled pipe, which is positioned in the second cavity, is provided with a second expanding hole; the serpentine pipe is provided with a main flow channel and an auxiliary flow channel positioned on the outer side of the main flow channel, and the main flow channel and the auxiliary flow channel are communicated with the first cavity through a first expansion hole and communicated with the second cavity through a second expansion hole. The air suction silencer can give consideration to both noise and energy consumption, and can achieve the effect of higher energy efficiency ratio while reducing noise.

Description

Suction muffler, compressor and household appliance

Technical Field

The utility model relates to a muffler technical field, in particular to muffler of breathing in, compressor and domestic 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 aims at providing a muffler of breathing in aims at compromising noise and energy consumption.

In order to achieve the above object, the utility model provides a muffler of breathing in, include:

a housing having a sound-deadening chamber; and

the coil pipe assembly is arranged in the silencing cavity and divides the silencing cavity into a first cavity and a second cavity, the coil pipe assembly comprises a coil pipe, a part of the coil pipe, which is positioned in the first cavity, is provided with a first expanding hole, and a part of the coil pipe, which is positioned in the second cavity, is provided with a second expanding hole;

the serpentine pipe is provided with a main flow passage and an auxiliary flow passage positioned on the outer side of the main flow passage, and the main flow passage and the auxiliary flow passage are communicated with the first cavity through the first expansion hole and communicated with the second cavity through the second expansion hole.

In one embodiment, the serpentine tube is spaced from the inner wall of the first lumen at the end of the first lumen to form the first flared opening.

In one embodiment, the portion of the serpentine tube located in the second lumen is broken to form the second dilated aperture.

In an embodiment, the number of the secondary flow channels is multiple, and the multiple secondary flow channels are arranged at intervals and surround the primary flow channel for a circle.

In an embodiment, the cross section of the secondary flow passage is circular, arc-shaped or irregular, 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 irregular arc part, and the second arc section corresponds to the fourth arc section and forms two irregular circular parts.

In an embodiment, the serpentine tube assembly further includes a partition plate disposed in the silencing chamber and dividing the silencing chamber into the first cavity and the second cavity, and the serpentine tube is disposed on the partition plate.

In one embodiment, the serpentine tube comprises a first serpentine portion and a second serpentine portion connected to each other, the first serpentine portion has a first main groove, the second serpentine portion has a second main groove, and the first main groove and the second main groove enclose the main flow channel.

In an embodiment, the first serpentine portion further has a first secondary groove, and the second serpentine portion further has a second secondary groove, and the first secondary groove and the second secondary groove form the secondary flow passage in an enclosing manner.

In one embodiment, the first serpentine has one of a slot and a plug, and the second serpentine has the other of a slot and a plug, the slot being plugged with the plug.

In an embodiment, the serpentine tube assembly further includes a first partition disposed on the first serpentine portion and a second partition disposed on the second serpentine portion, the first partition being connected to the second partition and constituting a partition plate that divides the sound-deadening chamber into the first chamber and the second chamber.

In one embodiment, the first serpentine is integrally formed with the first partition and the second serpentine is integrally formed with the second partition.

In one embodiment, the suction muffler further comprises an inlet pipe communicating with the first cavity and an outlet pipe abutting and communicating with an end of the serpentine pipe remote from the inlet pipe;

the inlet pipe is provided with a first flow passage and a second flow passage positioned on the outer side of the first flow passage, and the first flow passage and the second flow passage are both communicated with one end of the coiled pipe positioned in the first cavity; and/or

The outlet pipe is provided with a third flow channel and a fourth flow channel positioned outside the third flow channel, and the third flow channel and the fourth flow channel are communicated with at least one of the main flow channel and the auxiliary flow channel.

The utility model discloses still provide a compressor, include as above-mentioned muffler of breathing in.

The utility model also provides a domestic appliance, including foretell compressor.

When the suction muffler is used, the refrigerant entering the muffling cavity can be transmitted through the flow channel of the coiled pipe and then discharged out of the muffling cavity. Wherein, the refrigerant can carry out the amortization for the first time via first cavity and first expansion hole, carries out the amortization for the second time via second cavity and second expansion hole to the above-mentioned muffler of breathing in has better noise cancelling effect, can reduce the noise of breathing in of compressor. Compared with a flow channel only comprising the main flow channel, the flow resistance of the fluid of the composite flow channel simultaneously comprising the main flow channel and the auxiliary flow channel is smaller, the cooling capacity 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.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 a schematic perspective exploded view of an air suction muffler according to an embodiment of the present invention;

FIG. 2 is an exploded perspective view of the serpentine tube assembly shown in FIG. 1;

FIG. 3 is an assembled schematic view of the serpentine tube assembly shown in FIG. 1;

FIG. 4 is a top view of the serpentine tube assembly shown in FIG. 3;

FIG. 5 is a schematic view of a portion of the structure of FIG. 4;

FIG. 6 is an exploded view of FIG. 5;

FIG. 7 is a top view of a serpentine tube assembly according to another embodiment of the present invention;

fig. 8 is a top view of a serpentine tube assembly according to another embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Air suction silencer	200	Outer casing
300	Coiled pipe assembly	202	Silencing cavity
				202a	The first cavity	202b	Second cavity
302	Coiled pipe	310	First expanding hole
				320	Second expansion hole	330	Main runner
340	Secondary flow passage	302a	A first pipe body
				302b	Second tube	3022	A first serpentine
3024	Second serpentine	3022a	First main groove
				3022b	First auxiliary groove	3024a	Second main groove
3024b	Second auxiliary groove	3022c	Inserting groove
				3024c	Plug block		304	Partition board
3042	First partition part	3044	Second partition part
				3022d	First stage	3022e	Second section
3024d	Third stage	3024e	Fourth stage
				3022f	First gap	3024f	Second gap
400	Inlet pipe	204	Air inlet
				500	Outlet pipe	206	Air outlet
210	First shell part	220	Second shell part

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to 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 position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments 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, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a muffler breathes in.

In an embodiment of the present invention, as shown in fig. 1-4, the suction muffler 10 includes a housing 200 and a serpentine tube assembly 300.

The housing 200 has a sound-deadening chamber 202.

The serpentine tube assembly 300 is disposed within the silencing chamber 202 and divides the silencing chamber 202 into a first chamber 202a and a second chamber 202 b.

The serpentine tube assembly 300 includes a serpentine tube 302. The portion of the serpentine tube 302 within the first lumen 202a has a first flared opening 310. The portion of the serpentine tube 302 within the second lumen 202b has a second flared opening 320. The serpentine tube 302 has a primary flow passage 330 and a secondary flow passage 340 located outside the primary flow passage 330. It should be noted that, in the present embodiment, the serpentine tube 302 has an S-shaped structure or an S-like structure. Accordingly, in the present embodiment, the primary flow passage 330 and the secondary flow passage 340 each have an S-shaped structure or S-like structure.

The main flow channel 330 and the sub flow channel 340 are communicated with the first cavity 202a through the first expansion hole 310, that is, the main flow channel 330 in the first cavity 202a is communicated with the first cavity 202a through the first expansion hole 310, and the sub flow channel 340 in the first cavity 202a is communicated with the first cavity 202a through the first expansion hole 310. The main flow channel 330 and the sub flow channel 340 are communicated with the second cavity 202b through the second expansion hole 320, that is, the main flow channel 330 in the second cavity 202b is communicated with the second cavity 202b through the second expansion hole 320, and the sub flow channel 340 in the second cavity 202b is communicated with the second cavity 202b through the second expansion hole 320.

When the suction muffler 10 is used, the refrigerant introduced into the muffling chamber 202 may be transferred through the flow path of the serpentine pipe 302 and then discharged out of the muffling chamber 202. The refrigerant can be silenced for the first time through the first cavity 202a and the first expanded hole 310, and can be silenced for the second time through the second cavity 202b and the second expanded hole 320, so that the suction muffler 10 has a good silencing effect, and can reduce the suction noise of the compressor. Compared with a flow passage only comprising the main flow passage 330, the flow resistance of the fluid of the composite flow passage simultaneously comprising the main flow passage 330 and the secondary flow passage 340 is smaller, the cooling capacity is higher, the input force is lower, and therefore the energy efficiency ratio of the compressor can be improved, and compared with a flow passage only comprising one large inner diameter (the flow area of the flow passage is approximately the same as the sum of the flow area of the main flow passage 330 and the flow area of the secondary flow passage 340), the acoustic impedance of the composite flow passage simultaneously comprising the main flow passage 330 and the secondary flow passage 340 is increased, and the noise elimination effect is better. 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 serpentine tube 302 is spaced from the inner wall of the first lumen 330 at the end of the first lumen 330 to form the first flared opening 310. Thus, not only the formation of the first expanded hole 310 is facilitated, but also the difficulty in assembling the end of the serpentine tube 302 in the first cavity 330 with the inner wall of the first cavity 330 can be reduced (the difficulty in sealing the end of the serpentine tube 302 in the first cavity 330 with the inner wall of the first cavity 330 is high).

In some embodiments, the first dilation holes 310 are provided in the serpentine tube 302 on the wall of the first lumen 330. At this time, the end of the coiled pipe 302 located in the first cavity 330 may be spaced apart from the inner wall of the first cavity 330 to form two first expansion holes 310, that is, at this time, two first expansion holes 310 are provided, one first expansion hole 310 is provided at the end of the coiled pipe 302 located in the first cavity 330, and one first expansion hole 310 is provided on the wall of the coiled pipe 302 located in the first cavity 330.

In this embodiment, the portion of the serpentine tube 302 within the second lumen 340 is broken to form the second expanded aperture 320. In this manner, not only is the second expanded aperture 320 accessible, but also the serpentine tube 302 is accessible. Because the serpentine tube 302 may be considered to include the first tube 302a and the second tube 302b when the portion of the serpentine tube 302 located in the second cavity 340 is broken to form the second expanded hole 320, the first tube 302a and the second tube 302b are spaced apart at one end of the second cavity 340. The process of forming the first and

second tubes

302a, 302b with shorter lengths is less difficult than directly forming the serpentine tube 302 with longer lengths, which facilitates the formation of the serpentine tube 302. It is understood that in other embodiments, the second expanding hole 320 may be formed on the wall of the serpentine tube 302 located in the second cavity 340, and the serpentine tube 302 is not disconnected from the second expanding hole 320.

Specifically, in the present embodiment, the first pipe 302a and the second pipe 302b each have an S-shaped structure or S-like structure.

In this embodiment, the secondary flow channel 340 is multiple, and the multiple secondary flow channels 340 are arranged at intervals and surround the primary flow channel 330 for a circle. Compared with the mode that only one auxiliary channel 340 is arranged on the outer side of the main channel 330, the mode that the plurality of auxiliary channels 340 are arranged at intervals and surround the main channel 330 for a circle can better give consideration to noise and energy consumption. Specifically, in the present embodiment, the plurality of sub channels 340 are arranged at equal intervals. Thus, the refrigerant can flow more uniformly around the main flow passage 330.

In some embodiments, as shown in fig. 1 to 6, the number of the main flow passages 330 is one, the cross-sectional shape of the main flow passage 330 is circular, the number of the sub flow passages 340 is two, and the cross-sectional shape of the sub flow passages 340 is arc-shaped (arc-shaped ring).

In some embodiments, as shown in fig. 7, the number of the main flow channels 330 is one, the cross-sectional shape of the main flow channel 330 is circular, the number of the sub flow channels 340 is ten, and the cross-sectional shape of the sub flow channels 340 is circular (circular ring). At this time, the cross section of the serpentine tube 302 may be considered to have a lotus-root-like pattern.

In some embodiments, as shown in fig. 8, the cross-sectional shape of the secondary flowpath 340 is profiled (a profiled ring). The special-shaped part comprises a first arc segment 340a, a second arc segment 340b, a third arc segment 340c and a fourth arc segment 340d which are sequentially connected end to end, the first arc segment 340a corresponds to the third arc segment 340c and forms a special-shaped arc part, and the second arc segment 340b corresponds to the fourth arc segment and forms two special-shaped circular parts 340 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 main flow channels 330 is one, the cross-sectional shape of the main flow channel 330 is circular, the number of the sub flow channels 340 is five, and the cross-sectional shape of the sub flow channels 340 is irregular.

In the above embodiment, the cross-sectional shape of the secondary flow channel 340 is circular, arc-shaped or irregular. It is understood that the cross-sectional shape of the secondary flowpath 340 is not limited to the above forms, but may be any other regular or irregular shape. In the above embodiment, the number of the main flow passages 330 is one, and the cross-sectional shapes of the main flow passages 330 are circular. It is understood that the number of the main flow channels 330 is not limited to one, and the number of the main flow channels 330 may be plural (greater than or equal to two), and when the number of the main flow channels 330 is plural, the plural main flow channels 330 are arranged at intervals. It will be appreciated that the cross-sectional shape of the primary flow passage 330 is not limited to a circular shape, but may be any other regular or irregular shape, such as the arc described above, the profile described above.

In the present embodiment, as shown in fig. 3-6, the serpentine tube 302 includes a first serpentine 3022 and a second serpentine 3024 connected. The first serpentine 3022 has a first main groove 3022 a. The second serpentine 3024 has a second main groove 3024a, and the first main groove 3022a and the second main groove 3024a enclose the main flow channel 330. Thus, when the serpentine tube 302 is manufactured, the first serpentine portion 3022 and the second serpentine portion 3024 can be manufactured, and then the first serpentine portion 3022 and the second serpentine portion 3024 can be connected together, so that the serpentine tube 302 with the above-described structure is more convenient to obtain than the whole serpentine tube 302 is directly manufactured.

In this embodiment, the first serpentine 3022 has at least a portion of the secondary flowpath 340 thereon, and the second serpentine 3024 also has at least a portion of the secondary flowpath 340 thereon. That is, the first serpentine 3022 may be used to form the secondary flowpath 340 and the second serpentine 3024 may also be used to form the secondary flowpath 340. For example, the first serpentine 3022 has at least one secondary flowpath 340 thereon, and the second serpentine 3024 has at least one secondary flowpath 340 thereon; also for example, a portion of one secondary flowpath 340 is located on a first serpentine 3022, while another portion of the secondary flowpath 340 is located on a second serpentine 3024.

In this embodiment, the first serpentine 3022 further has a first secondary groove 3022b located outside the first main groove 3022a, the second serpentine 3024 further has a second secondary groove 3024b located outside the second main groove 3024a, and the first secondary groove 3022b and the second secondary groove 3024b define a secondary flowpath 340. Thus, it is very convenient to fabricate the sub channel 340.

It is understood that in other embodiments, the first and second sub-grooves 3022b and 3024b may be omitted, and in such cases, the sub-flow passages 340 may be provided in at least one of the first and

second serpentines

3022 and 3024.

It is understood that in other embodiments, the serpentine tube 302 has both a secondary flow path 340 defined by the first and second

secondary slots

3022b and 3024b and a secondary flow path 340 in at least one of the first and second

serpentine portions

3022 and 3024.

In this embodiment, the first serpentine 3022 has a slot 3022c, and the second serpentine 3024 has a plug 3024c, and the slot 3022c is plugged with the plug 3024 c. In this manner, it is very convenient to connect the first serpentine 3022 and the second serpentine 3024 together. Specifically, in the present embodiment, after the insertion slot 3022c is inserted into the insertion block 3024c, the first serpentine 3022 and the second serpentine 3024 are connected together by welding. It is understood that in other embodiments, the first serpentine 3022 may have a plug 3024c and the second serpentine 3024 may have a slot 3022c, the slot 3022c being plugged with the plug 3024 c.

In this embodiment, the serpentine tube assembly 300 further includes a first partition 3042 provided on the first serpentine 3022 and a second partition 3044 provided on the second serpentine 3024. The first partition 3042 is connected to the second partition 3044, and constitutes a partition plate 304 that partitions the sound-deadening chamber 202 into the first chamber 202a and the second chamber 202 b. As such, it is not only very convenient for the serpentine tube assembly 300 to separate the muffler chamber 202 into the first and

second chambers

202a, 202b, but it is also very convenient for the serpentine tube 302 to be secured within the muffler chamber 202.

In the present embodiment, as shown in fig. 2, the first serpentine 3022 is integrally formed with the first partition 3042, and the second serpentine 3024 is integrally formed with the second partition 3044. In this manner, the serpentine tube assembly 300 is more readily obtained.

In this embodiment, the first serpentine 3022 includes a first segment 3022d and a second segment 3022e, one end of the first segment 3022d and one end of the second segment 3022e are both disposed on the first partition 3042, and the other end of the first segment 3022d and the other end of the second segment 3022e are disconnected to form a first notch 3022 f.

The second serpentine 3024 includes a third segment 3024d and a fourth segment 3024e, one end of the third segment 3024d and one end of the fourth segment 3024e are both disposed on the second partition 3044, and the other end of the third segment 3024d and the other end of the fourth segment 3024e are broken to form a second notch 3024 f. The second expansion hole 320 includes a first notch 3022f and a second notch 3024 f.

In this embodiment, the ends of the first and

second segments

3022d and 3022e provided on the first partition 3042 are arranged in the first direction, and the ends of the third and

fourth segments

3024d and 3024e provided on the second partition 3044 are arranged in the first direction. Wherein the first and

second partitions

3042 and 3044 are arranged in a second direction, the first direction intersecting the second direction. Specifically, in the present embodiment, the first direction is perpendicular to the second direction.

It will be appreciated that in other embodiments, the serpentine tube assembly 300 further comprises a divider plate 304. The partition plate 304 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 b. The serpentine tube 302 is disposed on a divider plate 304. At this time, the structure of the serpentine tube 302 is not limited to the structure of the embodiment shown in fig. 1 to 4, and the serpentine tube 302 may have any reasonable structure.

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 202 a. Specifically, in the present embodiment, the inlet pipe 400 has a first flow passage and a second flow passage located outside the first flow passage. The first and second flow passages are each in communication with an end of the serpentine tube 302 within the first cavity 202 a. The inlet pipe 400 is arranged to be very convenient for discharging the refrigerant into the suction muffler 10, and the inlet pipe 400 comprising the first flow channel and the second flow channel is beneficial to taking noise and energy consumption into consideration, so that the effect of higher energy efficiency ratio when noise is reduced can be realized.

Specifically, in this embodiment, the end of the inlet tube 400 located within the first cavity 202a is spaced from the end of the serpentine tube 302 located within the first cavity 202a and forms a first flared aperture 310. Thus, it is very convenient to form the first expansion hole 310.

In this embodiment, the housing 200 has an air inlet 204 in communication with the first cavity 202 a. The inlet pipe 400 is disposed through the inlet port 204, and one end of the inlet pipe 400 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 will be appreciated that in other embodiments, the end of the inlet tube 400 proximate the serpentine tube assembly 300 may not extend into the first cavity 202a, but rather may be received within the inlet port 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, the design of the first flow channel is substantially the same as that of the main flow channel 330, and the design of the second flow channel is substantially the same as that of the sub flow channel 340, and thus, detailed description thereof will not be provided. For example, the number of the second flow channels is multiple, and the multiple second flow channels are arranged at intervals and surround the first flow channel for a circle; for another example, the plurality of second flow channels are arranged at equal intervals, and the cross section of each second flow channel can be circular, arc or irregular; for another example, the number of the first flow channels is one, and the cross section of the first flow channel is circular.

When the suction muffler 10 is installed in the casing of the compressor, the suction mode of the compressor may be direct suction or semi-direct suction. In the direct air suction process, the end surface of the inlet pipe 400 located outside the sound-deadening chamber 202 is attached to the inner wall of the shell of the compressor, so that the refrigerant can directly enter the sound-deadening chamber 202 through the inlet pipe 400 via the air suction port on the shell of the compressor. In the semi-direct air suction process, the end surface of the inlet pipe 400 located outside the sound-deadening cavity 202 is spaced from the inner wall of the shell of the compressor by a certain distance, so that the refrigerant can enter the shell through the air suction port on the shell of the compressor and then indirectly enter the sound-deadening cavity 202 through the inlet pipe 400.

In the present embodiment, the compressor including the suction muffler 10 may adopt a direct suction type or a semi-direct suction type. Specifically, in the present embodiment, the inlet pipe 400 is a straight pipe. In other embodiments, the inlet tube 400 includes a tube body portion and a flared portion. The first flow passage and the second flow passage are located on the body portion. One end of the body portion is disposed through the air inlet 204. The horn part is arranged at the other end of the tube body part. The presence of the flared portion makes it very convenient for the inlet pipe 400 to be applied to the inner wall of the shell of the compressor through the flared portion, thus making it even more convenient for the compressor comprising the suction muffler 10 to adopt a suction mode of direct suction.

In the present embodiment, as shown in fig. 1, the suction muffler 10 further includes an outlet pipe 500. The outlet tube 500 interfaces with and communicates with the end of the serpentine tube 302 remote from the inlet tube 400.

In the present embodiment, the outlet pipe 500 has a third flow passage and a fourth flow passage located outside the third flow passage, and both the third flow passage and the fourth flow passage communicate with at least one of the main flow passage 330 and the sub flow passage 340. 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 favorable for both noise and energy consumption, so that the effect of high energy efficiency ratio while reducing noise can be realized.

In this embodiment, the housing 200 has an air outlet 206, the air outlet 206 communicating with an end of the serpentine tube 302 remote from the inlet tube 400. The outlet pipe 500 is arranged on the outlet 206. In this manner, it is greatly facilitated that the outlet tube 500 communicates with the end of the serpentine tube 302 remote from the inlet tube 400 through the outlet port 206.

In the present embodiment, the design of the third flow channel is substantially the same as that of the main flow channel 330, and the design of the fourth flow channel is substantially the same as that of the sub flow channel 340, and thus, detailed description thereof will be omitted. For example, the number of the fourth flow channels is multiple, and the multiple fourth flow channels are arranged at intervals and surround the third flow channels for a circle; for another example, the plurality of fourth flow channels are arranged at equal intervals, and the cross section of each fourth flow channel can be circular, arc-shaped or irregular; for another example, the number of the third flow channels is one, and the cross section of the third flow channel is circular.

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, the first cavity 202a and the second cavity 202b are arranged along the third 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 third direction. Specifically, in the present embodiment, the second direction is perpendicular to the third direction. More specifically, in the present embodiment, the first direction is a front-rear direction, the second direction is an up-down direction, and the third direction is a left-right direction. The casing 200 includes a first casing portion 210 and a second casing portion 220 disposed up and down, that is, the above-described suction muffler 10 is a divided suction muffler. The housing 200 includes the first and

second housing parts

210 and 220 disposed one above the other, which greatly facilitates not only the fabrication of the housing 200 but also the disposition of the serpentine tube assembly 300 within the housing 200.

In the present embodiment, the air inlet 204 is located on the first casing portion 210, and the air outlet 206 is located on the second casing portion 220.

The utility model also provides a compressor, this compressor include foretell muffler 10 of breathing in, and foretell muffler 10 of breathing in locates in the casing of compressor.

The utility model also provides a domestic appliance, this domestic appliance includes foretell 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 is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A suction muffler, comprising:

a housing having a sound-deadening chamber; and

the serpentine pipe is provided with a main flow passage and an auxiliary flow passage, and the main flow passage and the auxiliary flow passage are communicated with the first cavity through the first expansion hole and communicated with the second cavity through the second expansion hole.

2. The suction muffler of claim 1, wherein the serpentine tube is spaced from an inner wall of the first cavity at an end of the first cavity to form the first flared opening.

3. The suction muffler of claim 1, wherein a portion of the serpentine tube located in the second cavity is broken to form the second expanded aperture.

4. The suction muffler of claim 1, wherein the serpentine tube assembly further comprises a divider plate dividing the muffler chamber into the first and second chambers, the serpentine tube being disposed on the divider plate.

5. The suction muffler of claim 1, wherein the serpentine tube comprises a first serpentine portion and a second serpentine portion connected, the first serpentine portion having a first main channel, the second serpentine portion having a second main channel, and the first main channel and the second main channel enclosing to form the main channel.

6. The suction muffler of claim 5, wherein the first serpentine further has a first secondary groove and the second serpentine further has a second secondary groove, the first secondary groove and the second secondary groove enclosing the secondary flow passage.

7. The suction muffler of claim 5, wherein the first serpentine and the second serpentine mate with an insert via a slot.

8. The suction muffler of claim 5, wherein the serpentine tube assembly further comprises a first partition disposed on the first serpentine portion and a second partition disposed on the second serpentine portion, the first partition being connected to the second partition and forming a divider plate that divides the muffler chamber into the first chamber and the second chamber.

9. The suction muffler of any one of claims 1 to 8, further comprising an inlet pipe communicating with the first chamber and an outlet pipe abutting and communicating with an end of the serpentine pipe remote from the inlet pipe;

the inlet pipe is provided with a first flow passage and a second flow passage, and the first flow passage and the second flow passage are both communicated with one end of the coiled pipe positioned in the first cavity; and/or

The outlet pipe has a third flow passage and a fourth flow passage, both of which communicate with at least one of the primary flow passage and the secondary flow passage.

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.