AIR INTAKE SILENCER, COMPRESSOR AND HOUSEHOLD APPLIANCE

Description

[0001] The present application claims a priority to Chinese Patent Application No. 202110354132.4, filed with China National Intellectual Property Administration on March 31, 2021.FIELD

[0002] The present disclosure relates to the field of silencer technologies, and more particularly, to a suction silencer, a compressor, and a household appliance.BACKGROUND

[0003] A refrigerator is one of household appliances commonly used in modern resident life. With the improvement of the living standard of people, people have increasingly higher requirements for noise and energy consumption of the refrigerator. A compressor is an essential component of the refrigerator, and a suction structure is an important suction flow channel of a compressor. A design of the suction structure in the compressor not only considers the noise, but also considers cooling capacity and coefficient of performance (COP). How to take into account both the noise and the energy consumption becomes an important research point for designing the suction structure of the compressor. KR 2003 / 83727 Y1 relates to a pumping apparatus for a suction muffler for a hermetic compressor, wherein a channel communicates with both a first cavity and a second cavity of the muffler. GB 771 106 A discloses an engine exhaust silencer, while CN 1 216 345 A describes a suction muffler for a compressor.SUMMARY Technical Problems

[0004] A main object of the present disclosure is to provide a suction silencer, which aims to take into account both noise and energy consumption.Technical Solutions

[0005] To this end, the present disclosure provides a suction silencer according to claim 1. The suction silencer includes a housing having a silencing cavity, and a dividing assembly disposed in the silencing cavity and dividing the silencing cavity into a first cavity and a second cavity. The dividing assembly has a first flow channel and a second flow channel. Both the first flow channel and the second flow channel are in communication with the first cavity and the second cavity. A level difference is present between an end surface of the first flow channel away from the second cavity and an end surface of the second flow channel away from the second cavity, and / or a level difference is present between an end surface of the first flow channel away from the first cavity and an end surface of the second flow channel away from the first cavity. The second flow channel is located outside the first flow channel.

[0006] In an embodiment, a flow path length of the first flow channel is different from a flow path length of the second flow channel.

[0007] In an embodiment, the end surface of the first flow channel away from the first cavity is flush with the end surface of the second flow channel away from the first cavity. The level difference is present between the end surface of the first flow channel away from the second cavity and the end surface of the second flow channel away from the second cavity.

[0008] In an embodiment, a flow path length of the second flow channel is 0.4 to 0.8 times of a flow path length of the first flow channel.

[0009] In an embodiment, the dividing assembly includes a communication pipe. Both the first flow channel and the second flow channel are located in the communication pipe.

[0010] In an embodiment, the communication pipe includes a first pipe portion and a second pipe portion that are connected to each other. The first pipe portion has a greater outer diameter than the second pipe portion. In an extending direction of the communication pipe, the first flow channel penetrates the first pipe portion and the second pipe portion, and the second flow channel penetrates the first pipe portion.

[0011] In an embodiment, the dividing assembly further includes a dividing plate disposed in the silencing cavity and dividing the silencing cavity into the first cavity and the second cavity. A mounting hole is provided in the dividing plate. The communication pipe is inserted into the mounting hole. An outer wall of the communication pipe is sealingly connected to an inner wall of the mounting hole, or a gap flow channel is provided between the outer wall of the communication pipe and the inner wall of the mounting hole.

[0012] In an embodiment, the dividing assembly includes a dividing plate disposed in the silencing cavity and dividing the silencing cavity into the first cavity and the second cavity, and a communication pipe penetrating the dividing plate. The first flow channel is located in the communication pipe. The second flow channel is located in the dividing plate.

[0013] In an embodiment, a mounting hole is provided in the dividing plate and located in a region enclosed by a plurality of second flow channels, and the communication pipe passes through the mounting hole. Or, the mounting hole is provided in the dividing plate, the communication pipe passes through the mounting hole, an outer wall of the communication pipe is connected to an inner wall of the mounting hole by a plurality of connection ribs, and the plurality of connection ribs are spaced apart from each other and surround the communication pipe for one circle to define the plurality of second flow channels.

[0014] In an embodiment, a plurality of second flow channels is provided. The plurality of second flow channels are spaced apart from each other and surround the first flow channel.

[0015] In an embodiment, the suction silencer further includes an outlet pipe in communication with the second cavity. The first cavity, the dividing assembly, and the second cavity are arranged in a first direction. The housing includes a first housing portion and a second housing portion. The first housing portion and the second housing portion are jointed with each other in a second direction and enclose to form the silencing cavity, and a center line of the outlet pipe is aligned with a center line of the first flow channel in the first direction, or the first housing portion and the second housing portion are jointed with each other in the first direction and enclose to define the silencing cavity, and a center line of the outlet pipe is misaligned with a center line of the first flow channel in the first direction.

[0016] The present disclosure also provides a compressor including the suction silencer as described above.

[0017] The present disclosure also provides a household appliance including the compressor as described above.Beneficial Effects

[0018] When using the suction silencer as described above, a refrigerant enters the first cavity, and then enters the second cavity through the first flow channel and the second flow channel of the dividing assembly, and is finally discharged. With the cooperation of the first cavity, the dividing assembly and the second cavity, suction noise generated by a compressor is reduced. In addition, compared with a case in which only the first flow channel is included, fluid flow resistance of a composite flow channel including both the first flow channel and the second flow channel is relatively smaller, and has higher cooling capacity and a lower inflow force. Thus, coefficient of performance of the compressor can be improved. In addition, compared with a case in which only one flow channel with a larger inner diameter (a flow area of the one flow channel is substantially same as a total area of a flow area of the first flow channel and a flow area of the second flow channel) is included, acoustic impedance of the composite flow channel including both the first flow channel and the second flow channel is increased, and has good silencing effect. Therefore, the above-mentioned suction silencer can take into account both the noise and the energy consumption, and thus has relatively high COP while the noise is reduced.

[0019] In addition, the level difference is present between the end surface of the first flow channel away from the second cavity and the end surface of the second flow channel away from the second cavity, and / or the level difference is present between the end surface of the first flow channel away from the first cavity and the end surface of the second flow channel away from the first cavity. In this way, the suction silencer also has a wider silencing frequency.BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to clearly explain technical solutions of embodiments of the present disclosure or the related art, accompanying drawings used in description of embodiments or the related art are briefly described below. Obviously, the accompanying drawings as described below are merely some embodiments of the present disclosure. Based on structures illustrated in these accompanying drawings, other accompanying drawings may be obtained by those of ordinary skill in the art without creative effort. FIG. 1 is a schematic perspective exploded view of a suction silencer according to an embodiment of the present disclosure; FIG. 2 is a schematic top view of a top of a first housing portion shown in FIG. 1; FIG. 3 is a schematic cross-sectional view of the suction silencer shown in FIG. 1; FIG. 4 is a schematic structural view of an inner side of a second housing portion in FIG. 1; FIG. 5 is a schematic cross-sectional view of a dividing assembly according to another embodiment of the present disclosure; FIG. 6 is a schematic top view of a dividing assembly according to another embodiment of the present disclosure; FIG. 7 is a schematic top view of a dividing assembly according to another embodiment of the present disclosure; FIG. 8 is a schematic top view of a dividing assembly according to another embodiment of the present disclosure; FIG. 9 is a schematic top view of a dividing assembly according to another embodiment of the present disclosure; FIG. 10 is a schematic perspective exploded view of a suction silencer according to another embodiment of the present disclosure; FIG. 11 is a top view of a top of a first housing portion shown in FIG. 10; FIG. 12 is a schematic cross-sectional view of the suction silencer shown in FIG. 10; FIG. 13 is a top view of a top of a first housing portion according to another embodiment of the present disclosure; FIG. 14 is a schematic top view of a communication pipe in FIG. 13; FIG. 15 is a schematic perspective exploded view of a suction silencer according to yet another embodiment of the present disclosure; and FIG. 16 is a cross-sectional view of the suction silencer shown in FIG. 15.

[0021] Description of reference numerals: NumeralsNameNumeralsName10suction silencer200housing300dividing assembly202silencing cavity204air inlet206air outlet202afirst cavity202bsecond cavity302first flow channel304second flow channel310communication pipe320dividing plate312first pipe portion314second pipe portion310afirst communication pipe310bsecond communication pipe322mounting hole306gap flow channel304afirst arc section304bsecond arc section304cthird arc section304dfourth arc section400inlet pipe402third flow channel404fourth flow channel410pipe body portion420horn portion500outlet pipe210first housing portion220second housing portion

[0022] The implementation, functional characteristics, and advantages of the present disclosure will be further described in combination with embodiments and with reference to the accompanying drawings.DETAILED DESCRIPTION

[0023] Technical solutions according to embodiments of the present disclosure will be described below in combination with accompanying drawings of the embodiments of the present disclosure. Obviously, the embodiments described below are only a part, rather than all, of the embodiments of the present disclosure. On a basis of the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor shall fall within the scope of the present disclosure.

[0024] It should be noted that, when the embodiments of the present disclosure relate to directional indication (such as up, down, left, right, front, and back, etc.), the directional indication is only configured to explain a relative position relationship, a motion situation, etc. between components in a certain specific posture. When the specific posture changes, the directional indication also changes accordingly.

[0025] In addition, when the embodiments of the present disclosure relate to terms such as "first" and "second", the terms such as "first" and "second" are used herein for purposes of description and are not intended to indicate or imply relative importance or significance, or implicitly indicate the number of indicated technical features. Furthermore, the feature associated with "first" and "second" may include one or more this feature distinctly or implicitly. In addition, when the meaning of "and / or" appearing through the disclosure is, including three parallel solutions. Taking "A and / or B" as an example, including solution A, or solution B, or solutions A and B satisfied at the same time. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on those of ordinary skill in the art. Further, when the combination of the technical solutions is contradictory or cannot be implemented, it should be regarded that the combination of the technical solutions does not exist, nor is within the scope of the present disclosure.

[0026] The present disclosure provides a suction silencer.

[0027] According to embodiments of the present disclosure, as illustrated in FIG. 1 to FIG. 4, the suction silencer 10 includes a housing 200 and a dividing assembly 300.

[0028] The housing 200 has a silencing cavity 202, an inlet 204, and an outlet 206. The inlet 204 and the outlet 206 are both in communication with the silencing cavity 202.

[0029] The dividing assembly 300 is disposed in the silencing cavity 202, and divides the silencing cavity 202 into a first cavity 202a in communication with the inlet 204 and a second cavity 202b in communication with the outlet 206. The dividing assembly 300 has a first flow channel 302 and a second flow channel 304 located outside the first flow channel 302. The first flow channel 302 and the second flow channel 304 are both in communication with the first cavity 202a and the second cavity 202b.

[0030] When using the suction silencer 10 as described above, a refrigerant enters the first cavity 202a through the inlet 204, and then enters the second cavity 202b through the first flow channel 302 and the second flow channel 304 of the dividing assembly 300, and is finally discharged through the outlet 206. With the cooperation of the inlet 204, the first cavity 202a, the dividing assembly 300 and the second cavity 202b with the outlet 206, suction noise generated by a compressor is reduced. In addition, compared with a case in which only the first flow channel 302 is included, fluid flow resistance of a composite flow channel including both the first flow channel 302 and the second flow channel 304 is relatively smaller, and has higher cooling capacity and a lower inflow force. Thus, coefficient of performance of the compressor can be improved. In addition, compared with a case in which only one flow channel with a larger inner diameter (a flow area of the one flow channel is substantially same as a total area of a flow area of the first flow channel 302 and a flow area of the second flow channel 304) is included, acoustic impedance of the composite flow channel including both the first flow channel 302 and the second flow channel 304 is increased, and has good silencing effect. Therefore, the above-mentioned suction silencer can take into account both noise and energy consumption, and thus has relatively high COP while the noise is reduced.

[0031] In the embodiment, a plurality of second flow channels 304 is provided, and spaced apart from each other and surround the first flow channel 302. Compared with an arrangement in which only one second flow channel 304 is arranged on an outer side of the first flow channel 302, the arrangement in which the plurality of second flow channels 304 is spaced apart from each other and surround the first flow channel 302 can better take into account both the noise and the energy consumption.

[0032] In the embodiment, the plurality of second flow channels 304 is spaced apart from each other and surround the first flow channel 302 for one circle. Specifically, in the embodiment, the plurality of second flow channels 304 is equally spaced apart from each other. In this way, the refrigerant can flow more evenly around a periphery of the first flow channel 302. It should be understood that, in other embodiments, the plurality of second flow channels 304 may arranged around the first flow channel 302 for more than one circles, and the present disclosure is not limited to the arrangement in which the plurality of second flow channels 304 is arranged around the first flow channel 302 for one circle.

[0033] In the embodiment, there is a level difference between an end surface of the first flow channel 302 away from the second cavity 202b and an end surface of the second flow channel 304 away from the second cavity 202b, and / or there is a level difference between an end surface of the first flow channel 302 away from the first cavity 202a and an end surface of the second flow channel 304 away from the first cavity 202a. The first flow channel 302 and the second flow channel 304 with the level difference between the end surfaces thereof can better perform wider-frequency silencing on disorder refrigerant flow with a relatively fast flow rate.

[0034] In the embodiment, the first flow channel 302 has a different flow path length from the second flow channel 304. Therefore, the above suction silencer has a wider silencing frequency.

[0035] Specifically, in the embodiment, the end surface of the first flow channel 302 away from the first cavity 202a is substantially flush with the end surface of the second flow channel 304 away from the second cavity 202a, and there is the level difference between the end surface of the first flow channel 302 away from the second cavity 202b and the end surface of the second flow channel 304 away from the second cavity 202b. In this way, the first flow channel 302 and the second flow channel 304 with the level difference between the end surfaces thereof can better perform the wider-frequency silencing on disorder refrigerant flow with the relatively fast flow rate entering the first cavity 202a. The first flow channel 302 and the second flow channel 304 that have the substantially flush end surface can deliver a relatively even refrigerant flow with a relatively slow flow rate to the second cavity 202b to further silencing. It should be understood that, in other embodiments, there may be a level difference between the end surface of the first flow channel 302 away from the first cavity 202a and the end surface of the second flow channel 304 away from the first cavity 202a, and the end surface of the first flow channel 302 away from the second cavity 202b is substantially flush with the end surface of the second flow channel 304 away from the second cavity 202b.

[0036] In the embodiment, the end surface of the first flow channel 302 away from the first cavity 202a being substantially flush with the end surface of the second flow channel 304 away from the first cavity 202a means that the level difference between the end surface of the first flow channel 302 away from the first cavity 202a and the end surface of the second flow channel 304 away from the first cavity 202a is within a tolerance. For example, the level difference between the end surface of the first flow channel 302 away from the first cavity 202a and the end surface of the second flow channel 304 away from the first cavity 20 is smaller than or equal to 1 cm.

[0037] In the embodiment, the flow path length of the first flow channel 302 is greater than the flow path length of the second flow channel 304. That is, the first flow channel 302 located at the center has a longer flow path length, and the second flow channel 304 located on a periphery has a shorter flow path length. In this way, the above suction silencer 10 can better take into account both the noise and the energy consumption. Further, the suction silencer 10 also has a wider silencing frequency. It should be understood that, in other embodiments, the flow path length of the second flow channel 304 may be greater than the flow path length of the first flow channel 302.

[0038] In the embodiment, the flow path length of the second flow channel 304 is 0.4 to 0.8 times of the flow path length of the first flow channel 302. The second flow channel 304 of too short flow path length is not beneficial to the silence. However, the first flow channel 302 of too long flow path length is not beneficial to generating the level difference between the end surface of the second flow channel 304 and the end surface of the first flow channel 302, which is not beneficial to widen the silencing frequency of the suction silencer 10. In order to take into account both the silencing and the widening of the silencing frequency, the flow path length of the second flow channel 304 is set to be 0.4 to 0.8 times of the flow path length of the first flow channel 302.

[0039] In the embodiment, the dividing assembly 300 includes a communication pipe 310. Both the first flow channel 302 and the second flow channel 304 are located in the communication pipe 310. That is, in the embodiment, the first flow channel 302 and the second flow channel 304 are integrated in a same communication pipe 310. Compared with a case where two communication pipes are provided, one communication pipe has the first flow channel 302, and another communication pipe has the second flow channel 304, the arrangement in which the first flow channel 302 and the second flow channel 304 are integrated in the same communication pipe 310 can simplify the dividing assembly 300 in structure. Thus, it is more beneficial to design the first flow channel 302 as a main flow channel and the second flow channel 304 as an auxiliary flow channel. With the cooperation between the large flow channel area of the main flow channel and a plurality of small flow channel areas of the auxiliary flow channel, it is possible to take into account both the noise and the energy consumption.

[0040] In the embodiment, the communication pipe 310 includes a first pipe portion 312 and a second pipe portion 314 that are connected to each other. The first pipe portion 312 has a greater outer diameter than the second pipe portion 314. In an extending direction of the communication pipe 310, the first flow channel 302 extends from one end of the first pipe portion 312 to one end of the second pipe portion 314 away from the first pipe portion 312, and the second flow channel 304 extends from one end of the first pipe portion 312 to another end of the first pipe portion 312. That is, in the extending direction of the communication pipe 310, the first flow channel 302 penetrates the first pipe portion 312 and the second pipe portion 314, and the second flow channel 304 penetrates the first pipe portion 312. In this way, the communication pipe 310 can be easily manufactured. Specifically, in the embodiment, the first pipe portion 312 and the second pipe portion 314 are integrally formed.

[0041] In some embodiments, as illustrated in FIG. 5, the dividing assembly 300 includes a first communication pipe 310a and a second communication pipe 310b that are spaced apart from each other. The first flow channel 302 is located in the first communication pipe 310a. The second communication pipe 304 is located in the second communication pipe 310b. Compared with the arrangement in which the first flow channel 302 and the second flow channel 304 are integrated in the same communication pipe 310, for the arrangement in which the first communication pipe 310a has the first flow channel 302 and the second communication pipe 310b has the second flow channel 304, the existing pipe can be used as the first communication pipe 310a and the second communication pipe 310b. Therefore, it is not necessary to additionally design and / or manufacture the communication pipe 310. Thus, design and / or manufacturing difficulty of the dividing assembly 300 can be reduced to lower cost of the dividing assembly 300.

[0042] In the embodiment, as illustrated in FIG. 1 to FIG. 4, the dividing assembly 300 further includes a dividing plate 320. The dividing plate 320 is disposed in the silencing cavity 202, and divides the silencing cavity 202 into the first cavity 202a and the second cavity 202b. The communication pipe 310 penetrates the dividing plate 320. The arrangement of the dividing plate 320 is significantly convenient to divide the silencing cavity 202 into the first cavity 202a and the second cavity 202b by the dividing assembly 300. It should be understood that, in other embodiments, when the communication pipe 310 has an enough large cross-sectional area, the silencing cavity 202 can be divided into the first cavity 202a and the second cavity 202b by the communication pipe 310. That is, when functions of both communicating and dividing the first cavity 202a and the second cavity 202b are integrated on the communication pipe, the dividing plate 320 may be omitted, which can simplify the structure of the dividing assembly 300.

[0043] In the embodiment, the dividing plate 320 has a mounting hole 322. The communication pipe 310 passes through the mounting hole 322. An outer wall of the communication pipe 310 may be sealingly or un-sealingly connected to an inner wall of the mounting hole 322.

[0044] In the embodiment, the outer wall of the communication pipe 310 is sealingly connected to the inner wall of the mounting hole 322. For example, in some embodiments, the communication pipe 310 and the dividing plate 320 are integrally formed. In this case, the outer wall of the communication pipe 310 may be regarded to be sealingly connected to 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. In this case, the outer wall of the communication pipe 310 may also be regarded to be sealingly connected to the inner wall of the mounting hole 322. The outer wall of the communication pipe 310 is sealingly connected to the inner wall of the mounting hole 322, which is significantly convenient to fixedly connect the communication pipe 310 to the dividing plate 320.

[0045] In other embodiments, as illustrated in FIG. 6, the outer wall of the communication pipe 310 may be un-sealingly connected to the inner wall of the mounting hole 322. That is, there may be a gap between the outer wall of the communication pipe 310 and the inner wall of the mounting hole 322. In this case, it may be regarded that a gap flow channel 306 is formed between the outer wall of the communication pipe 310 and the inner wall of the mounting hole 322. Therefore, it is more beneficial for the suction silencer 10 to take into account both the noise and the energy consumption, and the suction silencer 10 also has relatively high COP while the noise is reduced.

[0046] In some embodiments, as illustrated in FIG. 6, when the communication pipe 310 is in clearance fit with the mounting hole 322, in this case, it may be regarded that there is an annular gap flow channel 306 outside the communication pipe 310. The annular gap flow channel 306 is formed around the communication pipe 310. In some embodiments, as illustrated in FIG. 7, 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. The plurality of connection ribs 330 are spaced apart from each other and surround the communication pipe 310 for one circle to define the plurality of gap flow channels 306.

[0047] In some embodiments, as illustrated in FIG. 8, the dividing assembly 300 includes the communication pipe 310 and the dividing plate 320. The dividing plate 320 is disposed in the silencing cavity 202, and divides the silencing cavity 202 into the first cavity 202a and the second cavity 202b. The communication pipe 310 penetrates the dividing plate 320. Here, the first flow channel 302 is located in the communication pipe 310. The second flow channel 304 is located in the dividing plate 320. The second flow channel 304 is formed in the dividing plate 320 with relatively low difficulty. Thus, when the second flow channel 304 is formed in the dividing plate 320, the existing pipe can be used as the communication pipe 310. Therefore, it is not necessary to additionally design and / or manufacture the communication pipe 310. Thus, the design and / or manufacturing difficulty of the dividing assembly 300 can be reduced, and thus the cost of the dividing assembly 300 is lowered.

[0048] In some embodiments, as illustrated in FIG. 8, the plurality of second flow channels 304 is formed in the dividing plate 320. The plurality of second flow channels 304 is spaced apart from each other and surround the communication pipe 310 for one circle. The mounting hole 322 is formed in the dividing plate 320. The mounting hole 322 is located in a region enclosed by the plurality of second flow channels 304. The communication pipe 310 having the first flow channel 302 passes through the mounting hole 322. It should be noted that, in this case, the outer wall of the communication pipe 310 may be sealingly or un-sealingly connected to the inner wall of the mounting hole 322. When the outer wall of the communication pipe 310 is un-sealingly connected to the inner wall of the mounting hole 322, the gap flow channel 306 illustrated in FIG. 6 or FIG. 7 is formed between the outer wall of the communication pipe 310 and the inner wall of the mounting hole 322, and this gap flow channel 306 is located between the first flow channel 302 and the second flow channels 304.

[0049] In some embodiments, as illustrated in FIG. 9, the mounting hole 322 is formed in the dividing plate 320. The communication pipe 310 having the first flow channel 302 passes through the mounting hole 322. Further, the outer wall of the communication pipe 310 is connected to the inner wall of the mounting hole 322 by the plurality of connection ribs 330. The plurality of connection ribs 330 is spaced apart from each other and surround the communication pipe 310 for one circle to define the plurality of connection ribs 330. In this case, the second flow channels 304 illustrated in FIG. 9 are substantially same as the gap flow channels 306 illustrated in FIG. 7

[0050] In the embodiment, as illustrated in FIG. 1 to FIG. 4, the communication pipe 310 penetrates the mounting hole 322. Further, both one end of the first communication pipe 302 and one end of the second communication pipe 304 extend into the first cavity 202a. Both another end of the first communication pipe 302 and another end of the second communication pipe 304 extend into the second cavity 202b. In this way, when the dividing plate 3 is not changed in thickness, each of the first communication pipe 302 and the second communication pipe 304 has a longer flow path length, which is more beneficial for the noise reduction. It should be understood that, in other embodiments, both the one end of the first communication pipe 302 and the one end of the second communication pipe 304 extend into the first cavity 202a or the second cavity 202b, and both the other end of the first communication pipe 302 and the other end of the second communication pipe 304 are received in the mounting hole 322 of the dividing plate 320.

[0051] In some embodiments, as illustrated in FIG. 1 to FIG. 4, the communication pipe 310 is a straight pipe. In some embodiments, the communication pipe 310 may also be a bent pipe. In an arrangement direction of the first cavity 202a and the second cavity 202b, a bent pipe with a same projection length as a straight pipe has a longer flow path length than the straight pipe.

[0052] Thus, it is more beneficial to take into account both the noise and the energy consumption.

[0053] In some embodiments, as illustrated in FIG. 1 to FIG. 4, one first flow channel 302 is provided, and has a circular cross-section. In addition, ten second flow channels 304 are provided, and each of the second flow channels 304 has a circular cross-section (a ring-shaped cross-section). In this case, it may be regarded that the cross-section of the communication pipe 310 has a lotus root-shaped pattern.

[0054] In some embodiments, as illustrated in FIG. 10 to FIG. 12, one first flow channel 302 is provided, and has a circular cross-section. In addition, three second flow channels 304 are provided, and each of these three second flow channels 304 has an arcuate cross-section (an arcuate ring).

[0055] In some embodiments, as illustrated in FIG. 13 and FIG. 14, each of the second flow channels 304 has a special-shaped cross-section (a special-shaped ring). Each of the second flow channels 304 of the special-shaped cross-section includes a first arc section 304a, a second arc section 304b, a third arc section 304c, and a fourth arc section 304d that are sequentially connected end to end. The first arc section 304a and the third arc section 304c are opposite to each other and formed as arc portions of the second flow channel 304 of the special-shaped cross-section. The second arc section 304b and the fourth arc section 304d are opposite to each other and formed as two circular arc portions of the second flow channel 304 of the special-shaped cross-section. In this case, it may be regarded that a middle part of the second flow channel 304 of the special-shaped cross-section has an arc form, and each of two ends of the second flow channel 304 of the special-shaped cross-section has a circular arc form. Specifically, in the embodiment, one first flow channel 302 is provided, and has a circular cross-section. Five second flow channels 304 are provided, and each of these five second flow channels 304 has a special-shaped cross-section.

[0056] In the above embodiments, the second flow channel 304 has a circular, arcuate, or special-shaped cross-section. It should be understood that the cross-sectional shape of the second flow channel 304 is not limited to the above several forms, and may also be any other regular or irregular shapes. In the above embodiments, one first flow channels 302 is provided, and has a circular cross-section. It should be understood that a number of the first flow channels 302 is not limited to one, and a plurality of first flow channels 302, for example, two or more first flow channels 302, may also be provided. When the plurality of first flow channels 302 is provided, the plurality of first flow channels 302 is spaced apart from each other. It should be understood that the cross-sectional shape of the first flow channel 302 is not limited to the circular shape, and may also be any other regular or irregular shapes such as the arcuate shape and the special shape as described above.

[0057] In the embodiments, as illustrated in FIG. 1 to FIG. 4, the suction silencer 10 further includes an inlet pipe 400. The inlet pipe 400 has a third flow channel 402 and a fourth flow channel 404 located outside the third flow channel 402. Both the third flow channel 402 and the fourth flow channel 404 are in communication with the first cavity 202a through the inlet 204. The arrangement of the inlet pipe 400 is significantly convenient to discharge the refrigerant into the suction silencer 10. Meanwhile, the inlet pipe 400 including both the third flow channel 402 and the fourth flow channel 404 is more beneficial to taking into account both the noise and energy consumption. Thus, it is possible to for the suction silencer 10 to have relatively high COP while the noise is reduced.

[0058] In the embodiment, the inlet pipe 400 passes through the inlet 204. Further, one end of the inlet pipe 400 close to the dividing assembly 300 extends into the first cavity 202a. In this way, it is significantly convenient for the inlet pipe 400 to communicate with the first cavity 202a through the inlet 204. It should be understood that, in other embodiments, the end of the inlet pipe 400 close to the dividing assembly 300 may be received in the inlet 204, rather than extending into the first cavity 202a. It should be noted that, in the embodiment, an outer wall of the inlet pipe 400 is sealingly connected to an inner wall of the inlet 204. For example, the inlet pipe 400 is in interference fit with the inlet 204.

[0059] In the embodiment, a design of the third flow channel 402 is substantially same as a design of the first flow channel 302 as described above, and a design of the fourth flow channel 404 is substantially same as a design of the second flow channel 304 as described, and thus the description thereof in detail will be omitted herein. For example, the third flow channel 402 has a different flow path length from the fourth flow channel 404. For another example, an end of the third flow channel 402 away from the first cavity 202a is substantially flush with an end of the fourth flow channel 404 away from the first cavity 202a. There is a level difference between an end of the third flow channel 402 close to the second cavity 202b and an end of the fourth flow channel 404 close to the second cavity 202b. For another example, a plurality of fourth flow channels 404 may be provided, and the plurality of fourth flow channels 404 is spaced apart from each other and surround the third flow channel 402 for one circle. For another example, the flow path length of the third flow channel 402 is greater than the flow path length of the fourth flow channel 404. For another example, the plurality of fourth flow channels 404 is equally spaced apart from each other. The fourth flow channel 404 may have a circular, arcuate, or special-shaped cross-section. For another example, one third flow channels 402 is provided, and has a circular cross-section.

[0060] When the suction silencer 10 is disposed in a housing of the compressor, a suction of the compressor may be a direct suction or a semi-direct suction. Further, for the direct suction, an end surface of the inlet pipe 400 located outside the silencing cavity 202 is attached to an inner wall of the housing of the compressor. Therefore, the refrigerant can directly enter the silencing cavity 202 through the inlet pipe 400 via a suction port in the housing of the compressor. For the semi-direct suction, the end surface of the inlet pipe 400 located outside the silencing cavity 202 is spaced from the inner wall of the housing of the compressor by a predetermined distance. Therefore, the refrigerant can indirectly enter the silencing cavity 202 through the inlet pipe 400 after entering the housing through the suction port in the housing of the compressor.

[0061] In the embodiment, the inlet pipe 400 includes a body portion 410 and a horn portion 420. The third flow channel 402 and the fourth flow channel 404 are located on the body portion 410. One end of the body portion 410 passes through the inlet 204. The horn portion 420 is disposed on another end of the body portion 410. The arrangement of the horn portion 420 is significantly convenient for the inlet pipe 400 to be attached to the inner wall of the housing of the compressor by the horn portion 420. Thus, it is more convenient for the compressor including the suction silencer 10 as described above to operate in the direct suction.

[0062] In some embodiments, as illustrated in FIG. 14 and FIG. 15, the above horn portion 420 may be omitted. In this case, the body portion 410 may be spaced apart from the inner wall of the housing of the compressor by a predetermined distance. Therefore, the refrigerant can semidirectly enter the first cavity 202a through the body portion 410 via the suction port in the housing of the compressor. In this case, it may be regarded that the suction of the compressor is the semi-direct suction.

[0063] In the embodiment, as illustrated in FIG. 1 and FIG. 2, the suction silencer 10 further includes an outlet pipe 500. The outlet pipe 500 has a fifth flow channel and a sixth flow channel located outside the fifth flow channel. Both the fifth flow channel and the sixth flow channel are in communication with the second cavity 202b through the outlet 206. The arrangement of the outlet pipe 500 is significantly convenient to discharge the refrigerant out of the suction silencer 10. Meanwhile, the outlet pipe 500 including both the fifth flow channel and the sixth flow channel is more beneficial to taking into account both the noise and the energy consumption. Thus, it is possible for the suction silencer 10 to have relatively high COP while the noise is reduced.

[0064] In the embodiment, an outlet pipe 500 passes through the outlet 206. An end of the outlet pipe 500 close to the dividing assembly 300 extends into the second cavity 202b. In this way, it is significantly convenient for the outlet pipe 500 to communicate with the second cavity 202b through the outlet 206. It should be understood that, in other embodiments, the end of the outlet pipe 500 close to the dividing assembly 300 may be received in the outlet 206, rather than extending into the second cavity 20. It should be noted that, in the embodiment, an outer wall of the outlet pipe 500 is sealingly connected to an inner wall of the outlet 206. For example, the outlet pipe 500 is in interference fit with the outlet 206.

[0065] In the embodiment, a design of the fifth flow channel is substantially same as the design of the first flow channel 302, and a design of the sixth flow channel is substantially the same as the design of the second flow channel 304, and the description thereof in detail will be omitted herein. For example, the fifth flow channel has a different flow path length from the sixth flow channel. For another example, an end of the fifth flow channel away from the second cavity 202b is substantially flush with an end of the sixth flow channel away from the second cavity 202b. There is a level difference between an end of the fifth flow channel close to the first cavity 202a and an end of the sixth flow channel close to the first cavity 202a. For another example, a plurality of sixth flow channels is provided, and the plurality of sixth flow channels is spaced apart from each other and surround the fifth flow channel for one circle. For another example, the flow path length of the fifth flow channel is greater than the flow path length of sixth flow channel. For another example, the plurality of sixth flow channels is equally spaced apart from each other. The sixth flow channel may have a circular, arcuate, or special-shaped cross-section. For another example, one fifth flow channel is provided, and has a circular cross-section.

[0066] In the embodiment, the inlet pipe 400 (the body portion 410) is a straight pipe, and the outlet pipe 500 is also a straight pipe. It should be understood that, in other embodiments, at least one of the inlet pipe 400 and the outlet pipe 500 may also be a bent pipe.

[0067] In some embodiments, as illustrated in FIG. 1 to FIG. 4, the first cavity 202a, the dividing assembly 300, and the second cavity 202b are arranged in a 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 jointed with each other in a second direction and enclose to form the silencing cavity 202. The second direction intersects the first direction. Specifically, in the embodiment, the second direction is perpendicular to the first direction. More specifically, in the embodiment, the first direction is an up-down direction, and the second direction is a left-right direction. The housing 200 includes the first housing portion 210 and the second housing portion 220 that are arranged in the left-right direction. That is, the suction silencer 10 is a left-right split suction silencer. The housing 200 includes the first housing portion 210 and the second housing portion 220 that are arranged in the left-right direction, which is not only significantly beneficial to manufacturing the housing 200, but also significantly beneficial to arranging the dividing assembly 300 in the housing 200. For example, the dividing assembly 300 and the first housing portion 210 may be integrally formed, or the dividing assembly 300 and the second housing portion 220 may be integrally formed.

[0068] In the embodiment, both the inlet 204 and the outlet 206 are located in the second housing portion 220. The dividing assembly 300 and the first housing portion 210 are integrally formed.

[0069] In the embodiment, a center line of the outlet pipe 500 is aligned with a center line of the first flow channel 302 in the first direction. For the left-right split suction silencer, the center line of the outlet pipe 500 is aligned with the center line of the first flow channel 302 in the first direction. Thus, it is possible for the suction silencer 10 to take into account both the noise and the energy consumption. Further, the suction silencer 10 also has a wider silencing frequency. In some embodiments, as illustrated in FIG. 14 and FIG. 15, the first cavity 202a, the dividing assembly 300, and the second cavity 202b are arranged in the first direction. The housing 200 includes the first housing portion 210 and the second housing portion 220. The first housing portion 210 and the second housing portion 220 are jointed with each other in the first direction and enclose to form the silencing cavity 202. Specifically, in the embodiment, the first direction is the up-down direction. The housing 200 includes the first housing portion 210 and the second housing portion 220 that are arranged in the up-down direction. That is, the suction silencer 10 is an up-down split suction silencer. The housing 200 includes the first housing portion 210 and the second housing portion 220 that are arranged in the up-down direction, which is not only significantly beneficial to manufacturing the housing 200, but also significantly beneficial to arranging the independent dividing assembly 300 in the housing 200. For example, the dividing assembly 300 is detachably connected to the first housing portion 210.

[0070] In the embodiment, a center line of the outlet pipe 500 is misaligned with a center line of the first flow channel 304 in the first direction. For the up-down split suction silencer, a center line of the outlet pipe 500 is misaligned with a center line of the first flow channel 304 in the first direction. Thus, it is possible for the suction silencer 10 to take into account both the noise and the energy consumption. Further, the suction silencer 10 also has a wider silencing frequency.

[0071] The present disclosure further provides a compressor. The compressor includes the suction silencer 10 as described above. The suction silencer 10 is disposed in a housing of the compressor.

[0072] The present disclosure further provides a household appliance. The household appliance includes the compressor as described above. 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.

[0073] The embodiments as described above are merely preferred embodiments of the present disclosure, and is not therefore intended to limit the scope of the present disclosure, the invention being defined by the appended claims.

Claims

1. A suction silencer (10), comprising: a housing (200) having a silencing cavity (202); and a dividing assembly (300) disposed in the silencing cavity (202) and dividing the silencing cavity (202) into a first cavity (202a) and a second cavity (202b), the dividing assembly (300) having a first flow channel (302) and a second flow channel (304), both the first flow channel (302) and the second flow channel (304) being in communication with the first cavity (202a) and the second cavity (202b), wherein: the second flow channel (304) is located outside the first flow channel (302), wherein a level difference is present between an end surface of the first flow channel (302) away from the second cavity (202b) and an end surface of the second flow channel (304) away from the second cavity (202b), and / or a level difference is present between an end surface of the first flow channel (302) away from the first cavity (202a) and an end surface of the second flow channel (304) away from the first cavity (202a).

2. The suction silencer (10) according to claim 1, wherein a flow path length of the first flow channel (302) is different from a flow path length of the second flow channel (304).

3. The suction silencer (10) according to claim 1, wherein: the end surface of the first flow channel (302) away from the first cavity (202a) is flush with the end surface of the second flow channel (304) away from the first cavity (202a); and the level difference is present between the end surface of the first flow channel (302) away from the second cavity (202b) and the end surface of the second flow channel (304) away from the second cavity (202b).

4. The suction silencer (10) according to claim 1, wherein a flow path length of the second flow channel (304) is 0.4 to 0.8 times of a flow path length of the first flow channel (302).

5. The suction silencer (10) according to claim 1, wherein the dividing assembly (300) comprises a communication pipe (310), both the first flow channel (302) and the second flow channel (304) being located in the communication pipe (310).

6. The suction silencer (10) according to claim 5, wherein: the communication pipe (310) comprises a first pipe portion (312) and a second pipe portion (314) that are connected to each other, the first pipe portion (312) having a greater outer diameter than the second pipe portion (314); and in an extending direction of the communication pipe (310), the first flow channel (302) penetrates the first pipe portion (312) and the second pipe portion (314), and the second flow channel (304) penetrates the first pipe portion (312).

7. The suction silencer (10) according to claim 5, wherein the dividing assembly (300) further comprises a dividing plate (320) disposed in the silencing cavity (202) and dividing the silencing cavity (202) into the first cavity (202a) and the second cavity (202b), a mounting hole (322) being provided in the dividing plate (320), the communication pipe (310) being inserted into the mounting hole (322), wherein: an outer wall of the communication pipe (310) is sealingly connected to an inner wall of the mounting hole (322); or a gap flow channel (306) is provided between the outer wall of the communication pipe (310) and the inner wall of the mounting hole (322).

8. The suction silencer (10) according to claim 1, wherein: the dividing assembly (300) comprises: a dividing plate (320) disposed in the silencing cavity (202) and dividing the silencing cavity (202) into the first cavity (202a) and the second cavity (202b); and a communication pipe (310) penetrating the dividing plate (320), the first flow channel (302) is located in the communication pipe (310); and the second flow channel (304) is located in the dividing plate (320).

9. The suction silencer (10) according to claim 8, wherein: a mounting hole (322) is provided in the dividing plate (320) and located in a region enclosed by a plurality of second flow channels (304), the communication pipe (310) passing through the mounting hole (322); or the mounting hole (322) is provided in the dividing plate (320), the communication pipe (310) passing through the mounting hole (322), wherein an outer wall of the communication pipe (310) is connected to an inner wall of the mounting hole (322) by a plurality of connection ribs, and wherein the plurality of connection ribs are spaced apart from each other and surround the communication pipe (310) for one circle to define the plurality of second flow channels (304).

10. The suction silencer (10) according to claim 1, wherein a plurality of second flow channels (304) is provided, the plurality of second flow channels (304) being spaced apart from each other and surrounding the first flow channel (302).

11. The suction silencer (10) according to claim 10, further comprising an outlet pipe (500) in communication with the second cavity (202b), wherein: the first cavity (202a), the dividing assembly (300), and the second cavity (202b) are arranged in a first direction; the housing (200) comprises a first housing portion (210) and a second housing portion (220); the first housing portion (210) and the second housing portion (220) are jointed with each other in a second direction and enclose to form the silencing cavity (202), wherein a center line of the outlet pipe (500) is aligned with a center line of the first flow channel (302) in the first direction; or the first housing portion (210) and the second housing portion (220) are jointed with each other in the first direction and enclose to define the silencing cavity (202), wherein a center line of the outlet pipe (500) is misaligned with a center line of the first flow channel (302) in the first direction.

12. A compressor, comprising a suction silencer (10) according to any one of claims 1 to 11.

13. A household appliance, comprising a compressor according to claim 12.