CN115288980A - Muffler and compressor - Google Patents
Muffler and compressor Download PDFInfo
- Publication number
- CN115288980A CN115288980A CN202210988738.8A CN202210988738A CN115288980A CN 115288980 A CN115288980 A CN 115288980A CN 202210988738 A CN202210988738 A CN 202210988738A CN 115288980 A CN115288980 A CN 115288980A
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- silencing
- muffler
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- muffling
- piece
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- 230000030279 gene silencing Effects 0.000 claims abstract description 140
- 230000003584 silencer Effects 0.000 claims abstract description 45
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 description 8
- 230000008030 elimination Effects 0.000 description 6
- 238000003379 elimination reaction Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 241000380131 Ammophila arenaria Species 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001743 silencing effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
- F04B39/0066—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using sidebranch resonators, e.g. Helmholtz resonators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention discloses a silencer and a compressor, wherein the silencer is used for the compressor and comprises: the silencing shell is open at one end; the silencing assembly is arranged in the silencing shell and covers at least part of the inner wall of the silencing shell, one side, facing the silencing shell, of the silencing assembly is provided with a plurality of spaced silencing grooves, a silencing hole penetrating through the bottom wall of each silencing groove is formed in the bottom wall of each silencing groove, and the cross-sectional area of each silencing hole is smaller than that of each silencing groove. According to the silencer disclosed by the invention, the noise caused by the airflow can be reduced, the attenuation of the noise of the airflow in a high-frequency range is met, and the overall noise of the compressor is effectively reduced.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a silencer and a compressor.
Background
In the related art, noise generated by the exhaust of the compressor is attenuated by the silencer, but the silencer has a poor silencing effect and does not sufficiently attenuate high-frequency noise.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a silencer, which can reduce noise caused by airflow, satisfy the attenuation of noise of high-frequency airflow, and effectively reduce the overall noise of a compressor.
Another object of the present invention is to propose a compressor with the above mentioned silencer.
The silencer according to the embodiment of the invention is used for a compressor and comprises: a silencing case, one end of which is open; the silencing component is arranged in the silencing shell and covers at least part of the inner wall of the silencing shell, one side, facing the silencing shell, of the silencing component is provided with a plurality of spaced silencing grooves, a silencing hole penetrates through the bottom wall of each silencing groove, and the cross-sectional area of the silencing hole is smaller than that of each silencing groove.
According to the silencer provided by the embodiment of the invention, the silencing component is arranged in the silencing shell and covers at least part of the inner wall of the silencing shell, one side of the silencing component, which faces the silencing shell, is provided with a plurality of spaced silencing grooves, the bottom walls of the silencing grooves are provided with the silencing holes which penetrate through the silencing grooves, and the cross-sectional areas of the silencing holes are smaller than those of the silencing grooves, so that the silencing grooves and the silencing holes are matched to form a Helmholtz resonance structure, resonance is locally generated through the Helmholtz resonance structure, the silencing grooves and the silencing holes can convert the sound wave energy of noise into heat energy consumption, the noise caused by airflow is effectively reduced, the attenuation of the noise of airflow in a high-frequency section can be met, and the overall noise of the compressor is reduced.
In addition, the silencer according to the above embodiment of the present invention may also have the following additional technical features:
according to the silencer of the embodiments of the invention, a plurality of the silencing holes are arranged on the bottom wall of any silencing groove in a spaced mode.
According to some embodiments of the invention, the sound-deadening assembly covers a side wall of the sound-deadening shell and a top wall of the sound-deadening shell, and the sound-deadening groove is provided on both the side wall of the sound-deadening assembly and the top wall of the sound-deadening assembly.
According to some embodiments of the invention, the diameter of the sound-deadening holes is r, the distance between two adjacent sound-deadening holes is D and satisfies: d >5r.
According to some embodiments of the invention, a volume of any one of the muffling slots is V, an axial depth of the muffling hole is L, a cross-sectional area of the muffling hole is S and satisfies: 4000 s/L/V <25000.
According to some embodiments of the invention, the sound attenuating assembly is a single piece.
According to some embodiments of the invention, the noise dampening assembly comprises: the first silencing piece is arranged in the silencing shell and covers at least part of the inner wall of the silencing shell; the second silencing piece is arranged in the silencing shell and is stacked with the first silencing piece, the second silencing piece is positioned on one side, far away from the silencing shell, of the first silencing piece, the silencing groove is formed in the first silencing piece and penetrates through the first silencing piece, the surface, facing the first silencing piece, of the second silencing piece forms the bottom wall of the silencing groove, and the silencing hole penetrates through the second silencing piece.
According to some embodiments of the invention, the porosity of the second sound attenuating element is between 1% and 10%.
According to some embodiments of the present invention, the first silencer includes a first sub silencer and a second sub silencer arranged in a stacked manner, the first sub silencer is located on a side of the second sub silencer facing the silencer casing, the silencer groove includes a first groove penetrating through the first sub silencer and a second groove penetrating through the second sub silencer, and cross-sectional areas of the first groove and the second groove are larger than that of the silencer hole.
The compressor according to the embodiment of the invention comprises the silencer according to the embodiment of the invention.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of a muffler according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a muffler according to an embodiment of the present invention.
Reference numerals are as follows:
100. a muffler;
10. a sound deadening shell; 11. connecting holes;
20. a noise reduction assembly; 21. a silencing groove; 22. a silencing hole;
31. a first noise reducing member; 32. a second noise dampening member.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description of the invention, "a first feature" or "a second feature" may include one or more of the features, "a plurality" means two or more, the first feature may be "on" or "under" the second feature, including the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature therebetween, and the first feature being "on", "above" and "above" the second feature may include the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
A muffler 100 according to an embodiment of the present invention is described below with reference to the drawings.
Referring to fig. 1 and 2, a silencer 100 according to an embodiment of the present invention is used in a compressor, and after exhaust gas in the compressor passes through the silencer 100, the silencer 100 can attenuate noise, thereby reducing noise and achieving a silencing effect for the compressor.
It should be noted that the principle of the noise generated by the air flow during the operation of the compressor is well known to those skilled in the art and will not be described in detail herein.
The inventors of the present application have found that, in the related art, the muffler can attenuate noise generated from the discharge of the compressor, but the muffler has insufficient attenuation amount of high frequency noise. Therefore, in order to solve the problem of the noise reduction amount of the silencer 100 for high-frequency noise, in an embodiment of the present invention, the silencer 100 includes a silencing case 10 and a silencing assembly 20, one end of the silencing case 10 is open, the silencing assembly 20 is disposed in the silencing case 10, and the silencing assembly 20 covers at least part of the inner wall of the silencing case 10, one side (for example, the upper side shown in fig. 2) of the silencing assembly 20 facing the silencing case 10 is provided with a plurality of (equal to or more than two) spaced silencing grooves 21, the bottom wall of the silencing grooves 21 is provided with silencing holes 22 therethrough, and the cross-sectional area of the silencing holes 22 is smaller than that of the silencing grooves 21.
From this, can form helm Hertz resonance structure through the cooperation of noise elimination groove 21 and noise elimination hole 22, when exhaust in the compressor passes through amortization subassembly 20, the air current flows through noise elimination hole 22 and noise elimination groove 21, produce resonance at the part through helm Hertz resonance structure, make noise elimination groove 21 and noise elimination hole 22 can turn into heat energy consumption with the sound wave energy of noise, and carry out the sound insulation through amortization shell 10, the noise that the air current arouses has effectively been reduced, can satisfy the decay to high-band air current noise, the complete machine noise of compressor has been reduced.
In some embodiments, the muffler 100 may be a reactive muffler 100, and the reactive muffler 100 may be capable of providing a strong muffling effect to the low and medium frequency noise generated by the compressor discharge air.
According to the muffler 100 of the embodiment of the present invention, the muffling assembly 20 is disposed in the muffling shell 10 and covers at least a portion of the inner wall of the muffling shell 10, one side of the muffling assembly 20 facing the muffling shell 10 is provided with a plurality of spaced muffling slots 21, a bottom wall of each muffling slot 21 is provided with a through muffling hole 22, and a cross-sectional area of each muffling hole 22 is smaller than a cross-sectional area of each muffling slot 21, so that the muffling slots 21 and the muffling holes 22 cooperate to form a helmholtz resonance structure, and resonance is locally generated by the helmholtz resonance structure, so that the muffling slots 21 and the muffling holes 22 can convert sound wave energy of noise into heat energy for consumption, thereby effectively reducing noise caused by airflow, satisfying attenuation of airflow noise in a high frequency band, and reducing overall noise of the compressor.
According to some embodiments of the present invention, as shown in fig. 1 and fig. 2, a plurality of (two or more) muffling holes 22 may be formed in the bottom wall of any one of the muffling slots 21, the muffling holes 22 are spaced apart, the plurality of muffling holes 22 facilitate the discharge of the air flow, and can effectively reduce the noise caused by the air flow, so that the muffler 100 has a good muffling effect.
In some embodiments of the present invention, as shown in fig. 1 and 2, the sound-deadening assembly 20 covers the side wall of the sound-deadening shell 10 and the top wall of the sound-deadening shell 10, so that the structural strength of the sound-deadening assembly 20 is effectively increased, and the assembly and the fixation of the sound-deadening assembly 20 are facilitated. In addition, all be equipped with amortization groove 21 on the lateral wall of amortization subassembly 20 and the roof of amortization subassembly 20, the discharge of the air current of being convenient for, and can reduce the noise that the air current arouses, be favorable to improving the volume of eliminating the noise, effectively reduce the complete machine noise of compressor.
It is understood that the side opposite the open end of sound-deadening shell 10 (e.g., the upper side shown in fig. 2) is formed as the top wall of sound-deadening shell 10, and the side of sound-deadening assembly 20 facing sound-deadening shell 10 (e.g., the upper side shown in fig. 2) is formed as the top wall of sound-deadening assembly 20.
According to some embodiments of the present invention, the noise reduction assembly 20 may be a single piece, so that the structural strength of the noise reduction assembly 20 is high, the number of assembly processes is reduced, and the production efficiency is improved.
In some embodiments, as shown in fig. 1 and 2, the sound-deadening assembly 20 may include a first sound-deadening member 31 and a second sound-deadening member 32, the first sound-deadening member 31 and the second sound-deadening member 32 are disposed in the sound-deadening housing 10, the first sound-deadening member 31 covers at least a part of the inner wall of the sound-deadening housing 10, the second sound-deadening member 32 is disposed in a stacked manner with the first sound-deadening member 31, the second sound-deadening member 32 is located on a side (e.g., a lower side shown in fig. 2) of the first sound-deadening member 31 away from the sound-deadening housing 10, the sound-deadening groove 21 is formed on the first sound-deadening member 31, a surface (e.g., an upper surface shown in fig. 2) of the second sound-deadening member 32 facing the first sound-deadening member 31 is formed as a bottom wall of the sound-deadening groove 21, and the sound-deadening hole 22 extends through the second sound-deadening member 32.
From this, can form helmholtz resonance structure through the cooperation of bloop 22 on bloop 21 on the first amortization piece 31 and the second amortization piece 32, resonance is produced at local through helmholtz resonance structure, make bloop 21 and bloop 22 can be with the sound wave energy conversion of noise heat energy consumption, the noise that the air current arouses has effectively been reduced, can satisfy the decay to high-band air current noise, the complete machine noise of compressor has been reduced, and first amortization piece 31 and second amortization piece 32 can be processed manufacturing respectively, moreover, the steam generator is simple in structure, and the operation is convenient.
According to some embodiments of the present invention, the porosity of the second silencing part 32 may be 1% to 10%, so that the second silencing part 32 can meet the required silencing requirement while ensuring the good structural strength of the second silencing part 32, and ensure the good noise attenuation effect on the air flow, thereby reducing the overall noise of the compressor. For example, in some embodiments, the porosity of the second sound attenuating element 32 may be 1%, 3%, 5%, 6%, 8%, 10%, etc.
In some embodiments of the present invention, the first silencer 31 may include a first sub silencer and a second sub silencer, the first sub silencer and the second sub silencer are stacked, the first sub silencer is located on one side (e.g., the upper side shown in fig. 2) of the second sub silencer facing the silencer casing 10, the silencer groove 21 includes a first groove and a second groove, the first groove penetrates through the first sub silencer, the second groove penetrates through the second sub silencer, and the cross-sectional areas of the first groove and the second groove are both larger than the cross-sectional area of the silencer hole 22. From this, constitute first amortization piece 31 through first sub-amortization piece and second sub-amortization piece and be favorable to improving the structural strength of first amortization piece 31, and be convenient for attenuate the noise, have better noise cancelling effect to reduce the complete machine noise of compressor.
In some embodiments, the cross-sectional area of the first groove may be larger than that of the second groove, or the cross-sectional area of the first groove may be smaller than that of the second groove, which may be set according to practical situations, so as to meet different use requirements of the first silencing piece 31.
According to some embodiments of the present invention, the aperture of the muffling hole 22 is r, the distance between two adjacent muffling holes 22 is D, and satisfies: d >5r, in above-mentioned size range, can make muffler 100 have better noise cancelling effect, effectively reduce the noise that the air current arouses, can ensure simultaneously that second amortization piece 32 has better structural strength, avoid second amortization piece 32 to take place the deformation scheduling problem.
In some embodiments of the present invention, the volume of any silencing groove 21 is V, the axial depth of the silencing hole 22 is L, the cross-sectional area of the silencing hole 22 is S, and the following are satisfied: 4000<S/L/V<25000. In the above range, the sizes of the muffling slot 21 and the muffling hole 22 can be set and expressed by the formula
According to the different size settings of the muffling slot 21 and the muffling hole 22, different noise frequencies can be eliminated, so that the set muffling frequency can be eliminated, the muffling requirements of different muffling frequencies are met, and the noise reduction effect is improved.
In some embodiments in which a plurality of silencing holes 22 are formed in the bottom wall of any silencing groove 21, the volume of any silencing groove 21 is V, the axial depth L of each silencing hole 22 is the axial depth of the plurality of silencing holes 22 located in the bottom wall of the silencing groove 21, and the cross-sectional area S of each silencing hole 22 is the cross-sectional area of the plurality of silencing holes 22 located in the bottom wall of the silencing groove 21, and satisfies: 4000<S/L/V<25000. Within the above range, the sizes of the muffling slot 21 and the plurality of muffling holes 22 on the bottom wall of the muffling slot 21 can be set by the formula
According to the different size settings of the muffling groove 21 and the plurality of muffling holes 22, different noise frequencies can be eliminated, so that the set muffling frequency can be eliminated, the muffling requirements of different muffling frequencies are met, and the noise reduction effect is improved.
The compressor according to the embodiment of the present invention includes the muffler 100 according to the embodiment of the present invention. Since the silencer 100 according to the embodiment of the present invention has the above-mentioned beneficial technical effects, according to the compressor according to the embodiment of the present invention, the silencing component 20 is disposed in the silencing shell 10 and covers at least part of the inner wall of the silencing shell 10, one side of the silencing component 20 facing the silencing shell 10 has a plurality of spaced apart silencing grooves 21, the bottom wall of each silencing groove 21 has a silencing hole 22 penetrating through it, and the cross-sectional area of the silencing hole 22 is smaller than that of the silencing groove 21, so that the silencing grooves 21 and the silencing holes 22 cooperate to form a helmholtz resonance structure, and resonance is locally generated by the helmholtz resonance structure, so that the silencing grooves 21 and the silencing holes 22 can convert sound wave energy of noise into heat energy consumption, thereby effectively reducing noise caused by airflow, satisfying attenuation of noise in a high-frequency airflow, and reducing overall noise of the compressor.
In some embodiments, the compressor may include a crankshaft, a cylinder assembly and a bearing, wherein the cylinder assembly is sleeved on the crankshaft, a compression cavity is defined in the cylinder assembly, the bearing is sleeved on the crankshaft, an exhaust passage is formed on the bearing, one end of the exhaust passage is communicated with the compression cavity, the muffler 100 is sleeved on the crankshaft, and the open end of the muffler shell 10 is communicated with the other end of the exhaust passage. Therefore, when the air flow in the compression cavity enters the silencer 100 through the exhaust passage on the bearing, the air flow can sequentially pass through the silencing hole 22 and the silencing groove 21, the silencing groove 21 and the silencing hole 22 can convert the sound wave energy of noise into heat energy for consumption, the noise caused by the air flow is effectively reduced, and the overall noise of the compressor is reduced.
In some embodiments, as shown in fig. 1 and fig. 2, the silencing shell 10 and the silencing assembly 20 may have opposite connection holes 11, and the fastening member may sequentially penetrate through the two connection holes 11, the bearing and the cylinder assembly, so as to fix the silencer 100, thereby ensuring that the silencer 100 is fixed reliably and is easy to detach.
Other constructions and operations of the muffler 100 and the compressor according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In the description herein, references to the description of "an embodiment," "a specific embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A muffler for a compressor, comprising:
a silencing case, one end of which is open;
the silencing component is arranged in the silencing shell and covers at least part of the inner wall of the silencing shell, one side, facing the silencing shell, of the silencing component is provided with a plurality of spaced silencing grooves, a silencing hole penetrates through the bottom wall of each silencing groove, and the cross-sectional area of the silencing hole is smaller than that of each silencing groove.
2. The muffler of claim 1, wherein a plurality of the muffling holes are spaced apart from each other on a bottom wall of any one of the muffling slots.
3. The muffler of claim 1, wherein the muffler assembly covers a side wall of the muffler shell and a top wall of the muffler shell, and the muffler grooves are provided on both the side wall of the muffler assembly and the top wall of the muffler assembly.
4. The silencer of claim 1, wherein the diameter of the silencing holes is r, the distance between two adjacent silencing holes is D, and the following conditions are satisfied: d >5r.
5. The muffler of claim 1, wherein a volume of any one of the muffling slots is V, an axial depth of the muffling hole is L, a cross-sectional area of the muffling hole is S, and the following are satisfied: 4000< -S/L/V <25000.
6. The muffler of any one of claims 1-5, wherein the muffler assembly is a unitary piece.
7. The muffler of any of claims 1-5, wherein the sound attenuating assembly comprises:
the first silencing piece is arranged in the silencing shell and covers at least part of the inner wall of the silencing shell;
the second silencing piece is arranged in the silencing shell and is stacked with the first silencing piece, the second silencing piece is positioned on one side, far away from the silencing shell, of the first silencing piece, the silencing groove is formed in the first silencing piece and penetrates through the first silencing piece, the surface, facing the first silencing piece, of the second silencing piece forms the bottom wall of the silencing groove, and the silencing hole penetrates through the second silencing piece.
8. The muffler of claim 7, wherein the porosity of the second sound attenuating element is 1% to 10%.
9. The muffler according to claim 7, wherein the first muffler includes a first sub muffler and a second sub muffler arranged in a stack, the first sub muffler is located on a side of the second sub muffler facing the muffler shell, the muffling slot includes a first slot penetrating the first sub muffler and a second slot penetrating the second sub muffler, and the cross-sectional areas of the first slot and the second slot are each larger than the cross-sectional area of the muffling hole.
10. A compressor, characterized by comprising a muffler according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210988738.8A CN115288980A (en) | 2022-08-17 | 2022-08-17 | Muffler and compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210988738.8A CN115288980A (en) | 2022-08-17 | 2022-08-17 | Muffler and compressor |
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| CN115288980A true CN115288980A (en) | 2022-11-04 |
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| CN202210988738.8A Pending CN115288980A (en) | 2022-08-17 | 2022-08-17 | Muffler and compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116357542A (en) * | 2023-02-13 | 2023-06-30 | 青岛万宝压缩机有限公司 | A sound-absorbing shell with an adjustable opening number of resonance holes, a compressor, and a sound-absorbing method |
| CN116838612A (en) * | 2023-06-29 | 2023-10-03 | 嵊州市新起点焊接科技有限公司 | A compressor silencer component and its automatic assembly equipment |
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| CN116838612B (en) * | 2023-06-29 | 2024-05-17 | 嵊州市新起点焊接科技有限公司 | Compressor silencer assembly and automatic assembly equipment thereof |
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