CN110985341A

CN110985341A - Silencer, compressor and household appliance

Info

Publication number: CN110985341A
Application number: CN201911275727.XA
Authority: CN
Inventors: 申婷; 魏会军; 严耀宗; 徐敏; 熊克强; 张率华
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai; Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-04-10

Abstract

The invention provides a silencer, a compressor and a household appliance, wherein the silencer comprises: the casing has air inlet, gas outlet, a plurality of amortization cavity and a plurality of amortization passageway in the casing, and a plurality of amortization cavities and a plurality of amortization passageway are linked together. The technical scheme of the invention effectively solves the problem of high noise when the compressor in the prior art is used.

Description

Silencer, compressor and household appliance

Technical Field

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

Background

Along with economic development, the living standard of people is increasingly improved, and the user experience and quality pursuit of the refrigerator by the market are also gradually improved. In recent years, large-volume refrigerators develop rapidly, and common variable frequency compressors cannot meet the matching requirements of the high-end refrigerator market.

The broadband variable frequency compressor has excellent performance, and can meet the refrigerating capacity and the cooling speed of a refrigerator, but the requirement on the refrigerating capacity and the noise level of the compressor is higher. The suction muffler of the inverter compressor currently developed is generally only suitable for the noise requirements of a conventional rotational speed range. However, with the increase of the rotating speed of the compressor, the design of the air suction silencer is not suitable for high frequency, which can cause oil storage in the silencer and air suction and oil carrying, and influence the refrigerating capacity and volumetric efficiency of the compressor. The noise rises sharply at high frequencies, giving the user a poor experience.

Disclosure of Invention

The invention mainly aims to provide a silencer, a compressor and a household appliance, and aims to solve the problem that the compressor in the prior art is high in noise when in use.

In order to achieve the above object, according to one aspect of the present invention, there is provided a muffler comprising: the casing has air inlet, gas outlet, a plurality of amortization cavity and a plurality of amortization passageway in the casing, and a plurality of amortization cavities and a plurality of amortization passageway are linked together.

Further, the plurality of silencing chambers include a first silencing chamber, the air inlet is communicated with the first silencing chamber, and the first silencing chamber is communicated with the plurality of silencing channels.

Further, the muffler includes a first oil leak hole provided in the housing, the first oil leak hole being provided in a wall surface of the first muffling chamber.

Further, the plurality of muffling passages includes a first suction conduit having a first end in communication with the first muffling chamber.

Further, the silencer still includes first baffle, and first baffle sets up in the first end of first inspiratory line so that first baffle encloses into first amortization cavity with the casing.

Further, the plurality of sound-deadening chambers includes a second sound-deadening chamber in communication with the second end of the first suction duct.

Further, the volume ratio of the first sound-deadening chamber to the second sound-deadening chamber is between 1/7 and 1/4.

Further, the plurality of silencing passages further comprise a second air suction pipe, and a first end of the second air suction pipe is communicated with the second silencing chamber.

Further, the axis of the first suction duct and the axis of the second suction duct are parallel.

Further, the second end of the first air suction duct and the first end of the second air suction duct are on the same vertical plane.

Further, the length of the first air suction duct is L1, the length of the second air suction duct is L2, and L1 is greater than L2.

Further, 1.3< L1/L2> 1.6.

Further, the cross-sectional area of the first air suction duct is S1, and the cross-sectional area of the second air suction duct is S2, 1.05< S1/S2< 1.2.

Furthermore, the silencer also comprises a second partition plate, the second partition plate is fixed on the first air suction pipeline and the second air suction pipeline, and a second silencing chamber is formed by the second partition plate and the shell in an enclosing mode.

Further, the multiple sound-deadening chambers further comprise a third sound-deadening chamber, and the first partition plate, the second partition plate and the shell are arranged in an enclosing mode to form the third sound-deadening chamber.

Further, the plurality of silencing passages further comprise a third air suction pipe, a first end of the third air suction pipe is communicated with the third silencing chamber, and the third air suction pipe penetrates through the air outlet so that a second end of the third air suction pipe is located outside the shell.

Further, the first end of the third air suction pipeline is provided with a bell mouth.

Further, the volume ratio of the second sound-deadening chamber to the third sound-deadening chamber is between 1/5 and 1/2.

Furthermore, the silencer also comprises a second oil leakage hole which is positioned on the shell, and the second oil leakage hole is positioned on the wall surface of the third silencing cavity.

Further, the axis of the third suction duct is perpendicular to the axis of the first suction duct.

Further, the silencer still includes filtration, and filtration sets up in the third pipeline of breathing in.

Further, the filtering structure comprises an oil blocking cap and a filter screen, and the filter screen is located at the upstream of the oil blocking cap.

Further, the oil blocking cap has a convex surface protruding toward the first end of the third suction pipe.

Further, the muffler still includes the intake pipe, and the intake pipe passes the air inlet to make the first end setting of intake pipe in the casing, the second end of intake pipe is located outside the casing.

Further, the second end of the air inlet pipe is of a bell-mouth-shaped structure, and the cross-sectional area of one side, far away from the shell, of the bell-mouth-shaped structure is larger than that of one side, close to the shell, of the bell-mouth-shaped structure.

Further, the housing includes a first housing and a second housing that are sealingly connected together by a snap.

According to another aspect of the present invention, there is provided a compressor comprising a compressor main body and a muffler provided on the compressor main body, wherein the muffler is the above-mentioned muffler.

According to another aspect of the present invention, there is provided a household appliance comprising a compressor, the compressor being the above-mentioned compressor.

By applying the technical scheme of the invention, when the compressor works, gas passes through the silencer, the silencer is provided with the plurality of silencing chambers and the plurality of silencing channels, and the plurality of silencing chambers and the plurality of silencing channels can eliminate a plurality of noises with different frequencies, so that the noise is greatly reduced. The technical scheme of the invention effectively solves the problem of high noise when the compressor in the prior art is used.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic diagram of an explosive structure of an embodiment of a muffler according to the present invention;

FIG. 2 shows a schematic view of the overall structure of the muffler of FIG. 1;

FIG. 3 shows a schematic view of another angular overall configuration of the muffler of FIG. 2;

FIG. 4 is a schematic view showing an internal structure of a first housing of the muffler of FIG. 1;

FIG. 5 shows a schematic sectional view A-A of the first housing of FIG. 4;

FIG. 6 shows a schematic internal flow diagram of the muffler of FIG. 1;

FIG. 7 is a perspective view showing the internal structure of the first housing of the muffler of FIG. 1;

FIG. 8 shows a schematic structural view of a second housing of the muffler of FIG. 1;

FIG. 9 shows a schematic cross-sectional view of the second housing of FIG. 8 taken along line B-B;

FIG. 10 shows an enlarged schematic view of the filter structure of FIG. 1; and

fig. 11 shows a schematic view of an installation structure of the muffler of fig. 1.

Wherein the figures include the following reference numerals:

10. a housing; 11. a first sound-deadening chamber; 12. a first suction duct; 13. a second sound-deadening chamber; 14. a second suction duct; 15. a third sound-deadening chamber; 16. a third air intake duct; 17. a first housing; 18. a second housing; 20. a first separator; 30. a second separator; 40. a filter structure; 41. an oil blocking cap; 42. filtering with a screen; 50. an air inlet pipe; 100. a first oil leak hole; 200. and a second oil leak hole.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 11, the muffler of the present embodiment includes: a housing 10. The casing 10 has an air inlet, an air outlet, a plurality of silencing chambers and a plurality of silencing passages therein, and the plurality of silencing chambers and the plurality of silencing passages are communicated.

By using the technical scheme of the embodiment, when the compressor works, gas passes through the silencer, the silencer is provided with the plurality of silencing chambers and the plurality of silencing channels, and the plurality of silencing chambers and the plurality of silencing channels can eliminate noises with different frequencies, so that the noise is greatly reduced. The technical scheme of this embodiment has solved the great problem of noise when the compressor among the prior art uses effectively.

As shown in fig. 1 and fig. 4 to fig. 7, in the technical solution of the present embodiment, the multiple sound-deadening chambers include a first sound-deadening chamber 11, the inlet communicates with the first sound-deadening chamber 11, and the first sound-deadening chamber 11 communicates with the multiple sound-deadening passages. The first sound-deadening chamber 11 is provided to eliminate noise in a part of the frequency band. After the gas enters the first sound-deadening chamber 11, the noise of the gas is reduced as the space is enlarged.

As shown in fig. 3 and 6, in the present embodiment, the muffler includes a first oil leak hole 100 provided in the housing 10, and the first oil leak hole 100 is provided in a wall surface of the first sound-deadening chamber 11. The first oil leakage hole 100 is provided to facilitate the outflow of liquid in the gas, thereby preventing the accumulation of liquid from affecting the noise reduction.

As shown in fig. 1 and fig. 4 to 7, in the solution of the present embodiment, the plurality of sound deadening passages includes a first suction duct 12, and a first end of the first suction duct 12 communicates with the first sound deadening chamber 11. The provision of the first suction duct 12 eliminates a part of the noise, which further reduces the noise.

As shown in fig. 1 and 4, in the solution of the present embodiment, the muffler further includes a first partition plate 20, and the first partition plate 20 is disposed at the first end of the first suction pipe 12 so that the first partition plate 20 and the casing 10 enclose a first sound-deadening chamber 11. The structure has lower processing cost and convenient arrangement. The provision of the first partition 20 prevents the occurrence of blow-by.

As shown in fig. 1 and 4 to 7, in the technical solution of the present embodiment, the plurality of sound deadening chambers includes a second sound deadening chamber 13, and the second sound deadening chamber 13 communicates with the second end of the first suction pipe 12. The provision of the second muffling chamber 13 further eliminates the noise of the gas after passing through the first suction conduit 12.

Specifically, the volume ratio of the first sound-deadening chamber 11 to the second sound-deadening chamber 13 is between 1/7 and 1/4. The above structure further ensures that the first sound-deadening chamber 11 and the second sound-deadening chamber 13 can eliminate noises of different frequencies. More specifically, the first sound-deadening chamber 11 and the second sound-deadening chamber 13 have different structures, which further ensures that the first sound-deadening chamber 11 and the second sound-deadening chamber 13 can eliminate noises of different frequencies.

As shown in fig. 1 and fig. 4 to fig. 7, in the solution of the present embodiment, the plurality of sound-deadening passages further include a second suction duct 14, and a first end of the second suction duct 14 communicates with the second sound-deadening chamber 13. The provision of the second suction duct 14 further broadens the frequency band of the noise elimination.

As shown in fig. 1 and 4 to 7, in the present embodiment, the axis of the first air suction duct 12 and the axis of the second air suction duct 14 are parallel. The structure makes the structure of the silencer more compact.

As shown in fig. 1 and fig. 4 to 7, in the solution of the present embodiment, the second end of the first air suction duct 12 and the first end of the second air suction duct 14 are on the same vertical plane. The structure is easy to process and convenient to set. For example, it is possible to ensure that the second partition plate 30 is disposed relatively conveniently without disposing the second partition plate 30 at a position relatively distant from the second end of the first suction duct 12.

As shown in fig. 1 and fig. 4 to 7, in the solution of the present embodiment, the length of the first air suction duct 12 is L1, the length of the second air suction duct 14 is L2, and L1 is greater than L2. The provision of different lengths of the first intake air line 12 and the second intake air line 14 ensures that the first intake air line 12 and the second intake air line 14 eliminate noise at different frequencies. Further, 1.3< L1/L2> 1.6. The above-described structure makes the first suction duct 12 and the second suction duct 14 have a good noise reduction effect.

As shown in fig. 1 and fig. 4 to 7, in the solution of the present embodiment, the cross-sectional area of the first air suction duct 12 is S1, and the cross-sectional area of the second air suction duct 14 is S2, 1.05< S1/S2< 1.2. The first suction duct 12 having a larger cross-sectional area than the second suction duct 14 makes the noise less, and the gas passes through the first suction duct 12 first, where the kinetic energy of the gas is larger, thus using the first suction duct 12 having a larger cross-sectional area.

As shown in fig. 1 and fig. 4 to fig. 7, in the solution of the present embodiment, the muffler further includes a second partition plate 30, the second partition plate 30 is fixed to the first suction pipe 12 and the second suction pipe 14, and the second partition plate 30 and the casing 10 enclose a second muffling chamber 13. The structure has the advantages of low processing cost, convenient arrangement and compact structure.

As shown in fig. 1 and fig. 4 to 7, in the technical solution of the present embodiment, the plurality of sound-deadening chambers further include a third sound-deadening chamber 15, and the third sound-deadening chamber 15 is formed by the enclosure of the first partition plate 20, the second partition plate 30, and the casing 10. The provision of the third sound-deadening chamber 15 further ensures that the muffler is able to muffle noise at multiple frequencies.

As shown in fig. 1, 4 to 7, in the solution of the present embodiment, the plurality of silencing passages further includes a third air suction duct 16, a first end of the third air suction duct 16 is communicated with the third silencing chamber 15, and the third air suction duct 16 passes through the air outlet so that a second end of the third air suction duct 16 is located outside the casing 10. The provision of the third suction duct 16 further lengthens the passage path of the gas, which can further reduce noise. Specifically, the first end of the third air intake duct 16 is provided with a bell mouth. The above structure reduces the energy loss of the gas.

As shown in fig. 1 and 4 to 7, in the present embodiment, the volume ratio of the second sound-deadening chamber 13 to the third sound-deadening chamber 15 is 1/5 to 1/2. The above-described structure ensures that the second muffling chamber 13 and the third muffling chamber 15 can eliminate noises of different frequencies. Specifically, the internal structures of the second sound-deadening chamber 13 and the third sound-deadening chamber 15 are different, so that the sound-deadening effect is more remarkable.

As shown in fig. 3 and 6, in the present embodiment, the muffler further includes a second oil leakage hole 200 located in the housing 10, and the second oil leakage hole 200 is located in the wall surface of the third sound-deadening chamber 15. The structure further ensures that the liquid generated in the silencer can be discharged. Specifically, the second oil leakage hole 200 is located at the bottom of the cavity of the muffler, which ensures that the liquid generated by the muffler can be drained.

As shown in fig. 1 and 4 to 7, in the present embodiment, the axis of the third air intake duct 16 is perpendicular to the axis of the first air intake duct. The structure makes the silencer more compact, and saves the occupied space of the silencer. The upper end of the third air suction pipe 16 extends to the air outlet of the air suction silencer and is assembled with the air valve assembly of the compressor, the lower end of the third air suction pipe extends into the third silencing chamber 15, the depth length of the third air suction pipe is 28mm to 35mm, and the distance between the lower end of the third air suction pipe 16 and the bottom of the shell 10 of the silencer is 7mm to 10 mm.

As shown in fig. 4 and 10, in the solution of the present embodiment, the silencer further includes a filtering structure 40, and the filtering structure 40 is disposed in the third suction duct 16. The structure further ensures that the gas is cleaner after passing through the silencer. Specifically, the filter structure 40 includes an oil deflector cap 41 and a strainer 42, and the strainer 42 is located upstream of the oil deflector cap 41.

As shown in fig. 4 and 10, in the present embodiment, the oil deflector cap 41 has a convex surface protruding toward the first end of the third suction duct 16. The above-described structure prevents dirt from accumulating on the filter structure 40. In particular, the sieve 42 also has a convex surface projecting towards the first end of the third suction duct 16.

As shown in fig. 2 and 3, in the solution of the present embodiment, the muffler further includes an intake pipe 50, the intake pipe 50 penetrates through the intake port, so that a first end of the intake pipe 50 is disposed inside the housing 10, and a second end of the intake pipe 50 is located outside the housing 10. The provision of the intake pipe 50 can improve the energy efficiency of the muffler.

As shown in fig. 2 and 3, in the solution of the present embodiment, the second end of the air inlet pipe 50 is a bell-mouth shaped structure, and the cross-sectional area of the side of the bell-mouth shaped structure far from the housing 10 is larger than that of the side of the bell-mouth shaped structure near the housing 10. The structure can improve the energy efficiency of the silencer and reduce the resistance loss.

As shown in fig. 1, in the solution of the present embodiment, the housing 10 includes a first housing 17 and a second housing 18, and the first housing 17 and the second housing 18 are connected together by snap-sealing. The first housing 17 of the silencer is connected with the second housing 18 of the silencer through a clamping groove. Specifically, the upper and lower cavities may be integrally assembled around the sealing line of the groove structure around the circumference of the bottom plate of the first housing 17, and the upper end surface of the second housing 18 around the sealing line of the convex structure around the circumference of the sealing line. Wherein the partition in the second housing 18 is of concave configuration to match the partition in the first housing 17. The sealing and assembling forms of the first shell 17 and the second shell 18 are simple and reliable, positioning and assembling are convenient, and assembling deviation caused by misoperation is avoided.

The design of the oil baffle cap 41 and the filter screen 42 of the silencer effectively improves the problem of liquid carrying in air suction, ensures gas-liquid separation, improves the air suction efficiency of a compressor, and ensures the promotion of high-frequency cold quantity; the design of first oil leak 100 and second oil leak 200 guarantees that the lubricating oil in the muffler normally discharges, avoids the problem of the oil storage of muffler, the oil mass greatly reduced of compressor. Three amortization chambeies of design in the muffler cavity realize different frequency channel segmentation amortizations, have reduced high frequency air current noise and the noise of breathing in, are quite useful to the operation of wide band compressor. The air inlet pipe 50 of the silencer and the air suction pipe of the shell of the compressor are directly sucked, so that the influence of heat exchange on a refrigerant in the suction process is reduced, the refrigerating capacity of the compressor is improved by 5-10%, and the volumetric efficiency is improved by 2-4%.

The application also provides a compressor, which comprises a compressor main body and a silencer arranged on the compressor main body. The silencer is the silencer. Specifically, the maximum compressor speed is 8400 rpm.

The application also provides a household appliance comprising a compressor. The compressor is the above compressor. The home appliances include refrigerators, air conditioners, and the like.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A muffler, comprising:

the silencer comprises a shell (10), wherein the shell (10) is internally provided with an air inlet, an air outlet, a plurality of silencing chambers and a plurality of silencing channels, and the silencing chambers are communicated with the silencing channels.

2. The muffler according to claim 1, wherein the plurality of muffling chambers comprises a first muffling chamber (11), the inlet communicating with the first muffling chamber (11), the first muffling chamber (11) communicating with the plurality of muffling passages.

3. A muffler according to claim 2, comprising a first oil leak hole (100) provided in the housing (10), the first oil leak hole (100) being provided in a wall surface of the first sound-deadening chamber (11).

4. A silencer according to claim 2, characterized in that the plurality of silencing passages comprises a first suction duct (12), a first end of the first suction duct (12) communicating with the first silencing chamber (11).

5. A silencer according to claim 4, characterized in that the silencer further comprises a first partition (20), which first partition (20) is arranged at a first end of the first suction duct (12) so that the first partition (20) encloses a first silencing chamber (11) with the casing (10).

6. A silencer according to claim 5, characterized in that the plurality of silencing chambers comprises a second silencing chamber (13), the second silencing chamber (13) communicating with the second end of the first suction duct (12).

7. A muffler according to claim 6, characterized in that the volume ratio of the first sound-deadening chamber (11) and the second sound-deadening chamber (13) is between 1/7 and 1/4.

8. A silencer according to claim 6, characterized in that the plurality of silencing passages further comprises a second suction duct (14), the first end of the second suction duct (14) communicating with the second silencing chamber (13).

9. A silencer according to claim 8, characterized in that the axis of the first suction duct (12) and the axis of the second suction duct (14) are parallel.

10. A silencer according to claim 8, characterized in that the second end of the first suction duct (12) and the first end of the second suction duct (14) are in the same vertical plane.

11. A silencer according to claim 10, characterized in that the first suction duct (12) has a length L1, the second suction duct (14) has a length L2, the L1 being greater than the L2.

12. The muffler of claim 11, wherein 1.3< L1/L2> 1.6.

13. A silencer according to claim 8, characterized in that the cross-sectional area of the first suction duct (12) is S1 and the cross-sectional area of the second suction duct (14) is S2, 1.05< S1/S2< 1.2.

14. A silencer according to claim 8, characterized in that it further comprises a second partition (30), said second partition (30) being fixed to said first suction duct (12) and to said second suction duct (14), said second partition (30) enclosing with said casing (10) a second silencing chamber (13).

15. The muffler of claim 14 wherein the plurality of sound attenuating chambers further includes a third sound attenuating chamber (15), the first partition (20), the second partition (30), and the housing (10) being enclosed to form the third sound attenuating chamber (15).

16. A silencer according to claim 15, characterized in that the plurality of silencing passages further comprises a third suction duct (16), a first end of the third suction duct (16) communicating with the third silencing chamber (15), the third suction duct (16) passing through the air outlet so that a second end of the third suction duct (16) is located outside the casing (10).

17. A silencer according to claim 16, characterized in that the first end of the third suction duct (16) is provided with a flare.

18. A muffler according to claim 15, characterized in that the volume ratio of the second sound-deadening chamber (13) and the third sound-deadening chamber (15) is between 1/5 and 1/2.

19. A muffler according to claim 15, further comprising a second oil leak hole (200) in the housing (10), the second oil leak hole (200) being in a wall surface of the third sound-deadening chamber (15).

20. A silencer according to claim 16, characterized in that the axis of the third suction duct (16) is perpendicular to the axis of the first suction duct (12).

21. A silencer according to claim 16, further comprising a filter structure (40), the filter structure (40) being arranged in the third suction duct (16).

22. A silencer according to claim 21, characterized in that the filter structure (40) comprises an oil deflector cap (41) and a strainer (42), the strainer (42) being located upstream of the oil deflector cap (41).

23. A silencer according to claim 22, characterized in that the oil deflector cap (41) has a convex surface projecting towards the first end of the third suction duct (16).

24. The muffler according to claim 1 further comprising an inlet pipe (50), the inlet pipe (50) passing through the inlet port such that a first end of the inlet pipe (50) is disposed within the housing (10) and a second end of the inlet pipe (50) is located outside the housing (10).

25. A silencer according to claim 24, characterized in that the second end of the inlet pipe (50) is a bell-mouth like structure, the cross-sectional area of the side of the bell-mouth like structure facing away from the housing (10) being larger than the cross-sectional area of the side of the bell-mouth like structure facing towards the housing (10).

26. A silencer according to claim 1, characterized in that the housing (10) comprises a first housing (17) and a second housing (18), the first housing (17) and the second housing (18) being sealingly connected together by a snap.

27. A compressor comprising a compressor body and a muffler provided on the compressor body, characterized in that the muffler is the muffler of any one of claims 1 to 26.

28. A household appliance comprising a compressor, characterized in that it is a compressor according to claim 27.