CN107989775B - Muffler for compressor and compressor - Google Patents
Muffler for compressor and compressor Download PDFInfo
- Publication number
- CN107989775B CN107989775B CN201810010836.8A CN201810010836A CN107989775B CN 107989775 B CN107989775 B CN 107989775B CN 201810010836 A CN201810010836 A CN 201810010836A CN 107989775 B CN107989775 B CN 107989775B
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- 230000030279 gene silencing Effects 0.000 claims abstract description 97
- 238000005192 partition Methods 0.000 claims description 69
- 238000003780 insertion Methods 0.000 claims description 14
- 230000037431 insertion Effects 0.000 claims description 14
- 230000003584 silencer Effects 0.000 abstract description 19
- 239000003507 refrigerant Substances 0.000 description 48
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 230000009467 reduction Effects 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000001743 silencing effect Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241001631457 Cannula Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- F04B39/0083—Pulsation and noise damping means using blow off silencers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention discloses a silencer for a compressor and the compressor, wherein the silencer for the compressor comprises a shell, a compressor and a compressor, wherein the shell is provided with an air inlet and an air outlet, and an inlet pipe communicated with the air inlet is arranged in the shell; at least one baffle plate arranged in the shell to divide the shell into a plurality of closed silencing cavities; at least one inner cannula, at least one inner cannula corresponds to at least one baffle one by one, the inner cannula is arranged on the baffle to be connected with two adjacent silencing cavities, and the air inlet, the silencing cavities and the air outlet are sequentially connected to form an air flow channel. According to the silencer for the compressor, the noise of the compressor can be effectively reduced, and the overall performance of the compressor is ensured.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a silencer for a compressor and the compressor with the silencer.
Background
With the continuous development of social economy and science and technology, the living standard of people is improved, and the environmental protection consciousness is also greatly enhanced. The refrigerator is used as a household appliance which is necessary for daily life, the requirements of people on the performance of the refrigerator are higher and higher, the noise level of the refrigerator is one of the most critical indexes of the refrigerator except for important freezing capacity, the noise of the refrigerator mainly comes from the noise of a refrigerator compressor, the refrigerator compressor is used as the heart of a refrigerator system, the requirements on the single performance, the noise and the vibration level of the refrigerator compressor are higher and higher, and the visual phenomenon is mainly reflected in the noise aspect, so the importance of the noise control of the refrigerator compressor is self-evident.
In the related art, the silencer has a complex structure and complicated manufacture, the price of the compressor and even the whole refrigerating product is improved, and meanwhile, most of the two-stage silencers of the reciprocating piston type compressor in the prior art have limited silencing quantity because of small silencer cavity and limited compression ratio.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the silencer for the compressor, which has the advantages of simple structure and good silencing effect.
The invention also provides a compressor comprising the silencer for the compressor.
According to an embodiment of the present invention, a muffler for a compressor includes: the shell is provided with an air inlet and an air outlet, and an inlet pipe communicated with the air inlet is arranged in the shell; at least one baffle plate arranged in the shell to divide the shell into a plurality of closed silencing cavities; the inner inserting pipes are in one-to-one correspondence with the at least one partition board, the inner inserting pipes are arranged on the partition board to connect the adjacent two silencing cavities, and the air inlet, the silencing cavities and the air outlet are sequentially connected to form an air flow channel.
According to the silencer for the compressor, the inside of the shell is divided into the plurality of closed silencing cavities through the partition plates, and the two adjacent silencing cavities are communicated through the inner connecting pipe, so that a good guiding effect on the flow direction of a refrigerant in the air suction process can be achieved, vortex flow generated in the process of refrigerant flow can be effectively reduced, flow resistance and pressure loss of the refrigerant are reduced, noise of the compressor is effectively reduced, and the overall performance of the compressor is guaranteed. Meanwhile, the inner cannula is matched with the silencing cavity, and the inlet pipe is matched with the silencing cavity, so that gas can expand when flowing out of the inner cannula, transmission loss can be generated due to sound wave reflection, and silencing and noise reduction are achieved. In addition, the silencer has simple structure and good silencing effect.
According to some embodiments of the invention, the inner tube is a round tube.
In some embodiments of the invention, the inner cannula has an outer diameter d1, the d1 satisfying: d1 is more than or equal to 6mm and less than or equal to 12mm, the wall thickness of the inner insertion tube is h1, and h1 satisfies the following conditions: h1 is more than or equal to 1.5mm and less than or equal to 2.5mm.
According to some embodiments of the invention, the inlet length of the inner cannula is 0.47-0.53 times the length of the sound attenuation cavity, and the outlet length of the inner cannula is 0.22-0.28 times the length of the sound attenuation cavity.
In some embodiments of the invention, the inlet length of the inner cannula is 0.5 times the length of the sound attenuation chamber, and the outlet length of the inner cannula is 0.25 times the length of the sound attenuation chamber.
According to some embodiments of the invention, the inner tube is integrally formed with the separator plate to which it corresponds.
According to some embodiments of the invention, the inner insert is disposed perpendicular to the partition corresponding thereto.
According to some embodiments of the invention, the partition plate is two and is a first partition plate and a second partition plate respectively, the first partition plate and the second partition plate divide the inside of the shell into a first silencing cavity, a second silencing cavity and a third silencing cavity, the first silencing cavity is communicated with the air inlet, the first silencing cavity and the second silencing cavity are communicated with each other through a first inner inserting pipe on the first partition plate, the third silencing cavity is communicated with the air outlet, and the third silencing cavity is communicated with the second silencing cavity through a second inner inserting pipe on the second partition plate.
In some embodiments of the present invention, the first partition is located below the second partition, the first partition is vertically disposed, the second partition is horizontally disposed, the first and second silencing chambers are located at two sides of the first partition, and the third silencing chamber is located at an upper side of the second partition.
In some embodiments of the present invention, a limiting groove is provided on the housing, and the first partition board is provided in the limiting groove.
In some embodiments of the invention, the suction inlet of the first inner cannula is directly opposite the air inlet.
In some embodiments of the present invention, oil leakage holes are formed in the bottom of the housing and the second partition plate.
According to some embodiments of the invention, the housing has an inlet tube therein in communication with the air inlet.
In some embodiments of the invention, the inlet tube is an elbow.
In some embodiments of the invention, the height of the inlet pipe is less than or equal to 0.5 times the height of the silencing cavity in which the inlet pipe is located.
In some embodiments of the invention, the inlet tube has an outer diameter d2, the d2 satisfying: d2 is more than or equal to 6mm and less than or equal to 12mm, the wall thickness of the inlet pipe is h2, and h2 meets the following conditions: h2 is more than or equal to 1.5mm and less than or equal to 2.5mm.
According to some embodiments of the invention, a connecting pipe communicated with the air inlet is arranged on the peripheral wall of the shell, and the cross section area of at least part of the connecting pipe gradually increases in the direction from the fixed end to the free end of the connecting pipe.
According to some embodiments of the invention, the housing comprises: a first housing; and the second shell is connected with the first shell.
The compressor comprises the silencer for the compressor.
According to the compressor provided by the embodiment of the invention, the shell is divided into the plurality of closed silencing cavities through the partition plate, and the two adjacent silencing cavities are communicated through the inner connecting pipe, so that a good guiding effect on the flow direction of the refrigerant in the air suction process can be achieved, the generation of vortex in the process of flowing the refrigerant can be effectively reduced, the flowing resistance and the pressure loss of the refrigerant are reduced, the noise of the compressor is effectively reduced, and the integral performance of the compressor is ensured. Meanwhile, the inner cannula is matched with the silencing cavity, and the inlet pipe is matched with the silencing cavity, so that gas can expand when flowing out of the inner cannula, transmission loss can be generated due to sound wave reflection, and silencing and noise reduction are achieved. In addition, the silencer has simple structure and good silencing effect.
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 foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of a mechanism of a muffler for a compressor according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a muffler for a compressor according to an embodiment of the present invention;
FIG. 3 is an exploded view of a muffler for a compressor according to an embodiment of the present invention;
fig. 4 is a perspective view of a first baffle plate of a muffler for a compressor according to an embodiment of the present invention;
fig. 5 is a perspective view of a second baffle plate of a muffler for a compressor according to an embodiment of the present invention.
Reference numerals:
the sound-deadening device 100 is provided,
the housing 1 is provided with a plurality of openings,
the first housing 11, the air outlet 111,
the second housing 12, the air inlet 121, the strip-shaped protrusions 122, the limiting grooves 123,
an inlet pipe 2, a connecting pipe 3,
the first septum 4, the first inner cannula 41,
a second partition plate 5, a second inner cannula 51, oil leakage holes 52,
the first amortization chamber 6, the second amortization chamber 7, the third amortization chamber 8, steel wire 9.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
A muffler 100 for a compressor according to an embodiment of the present invention is described below with reference to fig. 1 to 5.
As shown in fig. 1 to 5, a muffler 100 for a compressor according to an embodiment of the present invention includes: a housing 1, at least one septum (first septum 4 and second septum 5 described below) and at least one inner cannula (first inner cannula 41 and second inner cannula 51 described below).
Specifically, the casing 1 has an air inlet 121 and an air outlet 111, an inlet pipe 2 communicating with the air inlet 121 is provided in the casing 1, a partition plate (a first partition plate 4 and a second partition plate 5 described below) is provided in the casing 1 to divide the interior of the casing 1 into a plurality of closed sound deadening chambers (a first sound deadening chamber 6, a second sound deadening chamber 7 and a third sound deadening chamber 8 described below), and an inner pipe (a first inner pipe 41 and a second inner pipe 51 described below) is provided on the partition plate to connect adjacent two sound deadening chambers, the inner pipes are in one-to-one correspondence with the partition plate, when the partition plate is one, the inner pipe is one, and when the partition plate is plural, the inner pipe is plural and in one-to-one correspondence with the partition plate. The air inlet 121, the plurality of sound deadening chambers, and the air outlet 111 are connected in order to constitute an air flow passage. The air flow may enter the housing 1 through the air inlet 121 and then be discharged from the air outlet 111 after sequentially passing through a plurality of silencing chambers, wherein the air flow passes from one silencing chamber to the other silencing chamber through the inner cannula.
The refrigerant gas enters one of the silencing cavities through the gas inlet 121 and the inlet pipe 2, the cross section of the inlet pipe 2 suddenly increases, the sudden change of the cross section can cause reflection of sound waves to generate transmission loss, silencing and noise reduction are performed, then the refrigerant gas enters the next silencing cavity through the inner insertion pipe, the refrigerant gas flows out of the inner insertion pipe into the silencing cavity, the cross section of the inner insertion pipe from the silencing cavity suddenly increases, the sudden change of the cross section can cause reflection of sound waves to generate transmission loss, and accordingly silencing and noise reduction are performed. When the refrigerant gas flows to the next silencing cavity through the inner pipe again, the refrigerant gas expands again, the passing frequency of sound waves is further reduced, noise is reduced again, and the purposes of energy saving, noise reduction and silencing are achieved. In addition, two adjacent silencing cavities are communicated through the inner inserting pipe, so that a good guiding effect is achieved on the flow direction of the refrigerant in the air suction process, the generation of vortex in the process of flowing the refrigerant can be effectively reduced, the flowing resistance and the pressure loss of the refrigerant are reduced, the noise of the compressor is effectively reduced, and the overall performance of the compressor is guaranteed.
According to the silencer 100 for the compressor, the inside of the shell 1 is divided into a plurality of closed silencing cavities through the partition plates, and two adjacent silencing cavities are communicated through the inner connecting pipe, so that a good guiding effect on the flow direction of a refrigerant in the air suction process can be achieved, vortex flow generated in the process of flowing the refrigerant can be effectively reduced, flow resistance and pressure loss of the refrigerant are reduced, noise of the compressor is effectively reduced, and the overall performance of the compressor is guaranteed. Meanwhile, the inner cannula is matched with the silencing cavity, and the inlet pipe 2 is matched with the silencing cavity, so that gas can expand when flowing out of the inner cannula, transmission loss can be generated due to sound wave reflection, and silencing and noise reduction are achieved. In addition, the silencer 100 has a simple structure and good silencing effect.
In some embodiments of the present invention, as shown in fig. 4 and 5, the inner cannula is a circular tube and the cross section of the inner cannula is circular. The round tube is beneficial to the flow of the refrigerant gas, reduces the flow resistance of the refrigerant gas, and can reduce the noise of the compressor. Of course, the invention is not limited thereto, and the inner tube may be a square tube or other shaped tubular structure.
Further, the outer diameter of the inner cannula is d1, d1 satisfying: d1 is more than or equal to 6mm and less than or equal to 12mm, the wall thickness of the inner cannula is h1, and h1 meets the following conditions: h1 is more than or equal to 1.5mm and less than or equal to 2.5mm. Preferably, the wall thickness of the inner cannula is 2mm. Thereby, the refrigerant gas can be guided, and the resistance to the flow of the refrigerant gas can be reduced, and the noise of the refrigerant gas can be reduced.
In some embodiments of the present invention, as shown in fig. 1 and 2, the inlet length of the inner cannula is 0.47-0.53 times the length of the sound deadening chamber, and the outlet length of the inner cannula is 0.22-0.28 times the length of the sound deadening chamber. The inner inserting pipe penetrates through the partition board, two ends of the inner inserting pipe extend towards two sides of the partition board respectively, air flows from one side of the partition board to the other side of the partition board through the inner inserting pipe, the length of the inner inserting pipe located on one side of the partition board, which is close to the inlet of the inner inserting pipe, is the inlet length of the inner inserting pipe, and the length of the inner inserting pipe located on one side of the partition board, which is close to the outlet of the inner inserting pipe, is the outlet length of the inner inserting pipe. In addition, the length of the silencing cavity is the length of the silencing cavity in the direction which is the same as the extending direction of the inner cannula. Thus, the frequency of passage of the muffler 100 can be reduced, the refrigerant gas can be guided, the resistance to the flow of the refrigerant gas can be reduced, and the noise of the refrigerant gas can be reduced.
Further, as shown in fig. 1 and 2, the inlet length of the inner cannula is 0.5 times the length of the sound deadening chamber, and the outlet length of the inner cannula is 0.25 times the length of the sound deadening chamber. By the theoretical analysis, the frequency at which the entire muffler 100 does not theoretically pass can be made to further act as a guide for the refrigerant gas, and the resistance to the flow of the refrigerant gas can be further reduced, and the noise of the refrigerant gas can be reduced.
In some embodiments of the present invention, as shown in fig. 4 and 5, the inner cannula is integrally formed with its corresponding septum. Therefore, the assembly process between the inner insertion tube and the partition plate can be simplified, the process of sealing between the inner insertion tube and the partition plate is omitted, the production period is saved, and the production cost is reduced.
In some embodiments of the present invention, as shown in fig. 1, the inner cannula is disposed perpendicular to its corresponding septum. Therefore, the processing of the inner insertion pipe and the baffle plate is facilitated, the flow of the air flow is facilitated, the flow resistance of the air flow is reduced, and the noise of the refrigerant gas can be reduced.
In some embodiments of the present invention, as shown in fig. 1-3, the partition plates are two and respectively a first partition plate 4 and a second partition plate 5, the first partition plate 4 and the second partition plate 5 divide the interior of the casing 1 into a first silencing cavity 6, a second silencing cavity 7 and a third silencing cavity 8, the first silencing cavity 6 is communicated with the air inlet 121, the inlet pipe 2 is positioned in the first silencing cavity 6, the first silencing cavity 6 and the second silencing cavity 7 are communicated with the air outlet 111 through a first inner insertion pipe 41 on the first partition plate 4, the third silencing cavity 8 is communicated with the second silencing cavity 7 through a second inner insertion pipe 51 on the second partition plate 5. The refrigerant gas enters the first silencing chamber 6 through the gas inlet 121 and the inlet pipe 2, then enters the second silencing chamber 7 through the first inner cannula 41, then enters the third silencing chamber 8 through the second inner cannula 51, and finally exits the silencer 100 through the gas outlet 111.
Refrigerant gas enters the first silencing cavity 6 through the gas inlet 121 and the inlet pipe 2, and the cross section of the inlet pipe 2 to the first silencing cavity 6 suddenly increases, so that the sudden change of the cross section can cause reflection of sound waves to cause transmission loss, and silencing and noise reduction are performed; then the refrigerant enters the second silencing cavity 7 through the first inner cannula 41, and similarly, in the second silencing cavity 7, the refrigerant expands again from the outlet of the first inner cannula 41, and the transmission loss is generated by the reflection of sound waves caused by the mutation of the sectional area, so that the noise is reduced again; the refrigerant passes through the second inner cannula 51 to reach the third silencing cavity 8, and the refrigerant expands again from the outlet of the second inner cannula 51 in the third silencing cavity 8, so that the passing frequency of sound waves is further reduced, noise is reduced again, and the purposes of energy conservation, noise reduction and silencing are achieved.
Further, as shown in fig. 1 and 2, the first partition plate 4 is located below the second partition plate 5, the first partition plate 4 is vertically disposed, the second partition plate 5 is horizontally disposed, the first and second sound deadening chambers 6 and 7 are located at both sides of the first partition plate 4, and the third sound deadening chamber 8 is located at the upper side of the second partition plate 5. The air inlet 121 is positioned on the side wall of the shell 1, the air inlet 121 is communicated with the first silencing cavity 6, the air outlet 111 is positioned on the top wall of the shell 1, and the air outlet 111 is communicated with the third silencing cavity 8. Thus, the structure of the silencer 100 can be more compact and reasonable, and the silencing effect is better. Wherein the first and second sound-deadening chambers 6 and 7 have a volume larger than that of the third sound-deadening chamber 100, thereby facilitating the sound-deadening chamber 100 to reduce noise. The first inner cannula 41 divides the silencing cavity close to the air inlet 121 into the first silencing cavity 6 and the second silencing cavity 7, and the length of the inlet pipe 2 and the length of the first inner cannula 41 are adjusted to reduce noise on the secondary frequency band of the compressor more pertinently, so that the noise reduction effect is better.
Specifically, the first inner cannula 41 and the second inner cannula 51 are circular tubes, the cross sections of the first inner cannula 41 and the second inner cannula 51 are circular rings, the outer diameters d1 of the first inner cannula 41 and the second inner cannula 51 are d1, and d1 satisfies: the thickness of the first and second inner cannulas 41 and 51 is 2mm, and thus the refrigerant gas can be guided, the resistance of the refrigerant gas flowing can be reduced, and the noise of the refrigerant gas can be reduced.
As shown in fig. 1 and 2, the first inner cannula 41 is disposed perpendicularly to the first separator 4, the first inner cannula 41 is integrally formed with the first separator 4, the second inner cannula 51 is disposed perpendicularly to the second separator 5, and the second inner cannula 51 is integrally formed with the second separator 5. The inlet length of the first inner cannula 41, i.e. the length of the first inner cannula 41 positioned in the first silencing cavity 6 is 0.5 times the length of the first silencing cavity 6 along the left-right direction, and the outlet length of the first inner cannula 41, i.e. the length of the first inner cannula 41 positioned in the second silencing cavity 7, is 0.25 times the length of the second silencing cavity 7 along the left-right direction. The inlet length of the second inner cannula 51, i.e. the length of the second inner cannula 51 located in the second sound deadening chamber 7 is 0.5 times the length of the second sound deadening chamber 7 in the up-down direction, and the outlet length of the second inner cannula 51, i.e. the length of the second inner cannula 51 located in the third sound deadening chamber 8 is 0.25 times the length of the third sound deadening chamber 8 in the up-down direction.
Further, as shown in fig. 1 and 2, the housing 1 is provided with a limiting groove 123, and the first partition board 4 is disposed in the limiting groove 123. Specifically, the inner peripheral wall of the casing 1 is provided with two strip-shaped protrusions 122 arranged at intervals, a limiting groove 123 is defined between the two strip-shaped protrusions 122, and the outer periphery of the first partition board 4 is arranged in the limiting groove 123, so that the effect of fixing the first partition board 4 can be achieved, and meanwhile, the first partition board 4 is convenient to install.
Still further, as shown in fig. 1 and 2, the suction port of the first inner cannula 41 is directly opposite to the air inlet 121. Thereby facilitating structural arrangement of the muffler 100 and reducing noise of the gas. Still further, oil leakage holes 52 are provided in the bottom of the housing 1 and the second partition 5. The lubricant oil settled in the refrigerant may flow out of the muffler 100 through the oil drain hole 52.
Further, as shown in fig. 1 and 2, the inlet pipe 2 is a bent pipe, whereby the structure in the sound deadening chamber can be made more compact. Specifically, as shown in fig. 1 and 2, the inlet pipe 2 is bent upward, but of course, the inlet pipe 2 may also be bent downward, and bending of the inlet pipe 2 is facilitated due to a large space of the sound deadening chamber in the up-down direction. Further, the height of the inlet pipe 2 is less than or equal to 0.5 times the height of the silencing cavity where the inlet pipe 2 is located. Thereby ensuring the smoothness of the flow of the refrigerant gas in the silencing cavity. For example, as shown in fig. 1, the height of the inlet pipe 2 is 0.5 times or less the height of the first sound deadening chamber 6. The height of the inlet pipe 2 is the height thereof in the vertical direction.
Further, the inlet pipe 2 has an outer diameter d2, d2 satisfying: d2 is more than or equal to 6mm and less than or equal to 12mm, the wall thickness of the inlet pipe 2 is h2, and h2 meets the following conditions: h2 is more than or equal to 1.5mm and less than or equal to 2.5mm. Preferably, the wall thickness of the inlet pipe 2 is 2mm. Thereby, the refrigerant gas can be guided, and the resistance to the flow of the refrigerant gas can be reduced, and the noise of the refrigerant gas can be reduced.
In some embodiments of the present invention, as shown in fig. 1 and 2, a connection pipe 3 communicating with an air inlet 121 is provided on the outer circumferential wall of the housing 1, and at least part of the connection pipe 3 has a cross-sectional area gradually increasing in a direction from a fixed end to a free end of the connection pipe 3. Thereby increasing the suction area. For example, in the example shown in fig. 2, the cross-sectional area of the end portion of the free end of the connection pipe 3 gradually increases in the direction from the fixed end thereof to the free end thereof. Refrigerant enters from the inlet port 121, and the inlet port 121 allows more refrigerant to enter the refrigeration cycle while preventing a substantial portion of the refrigerator oil from being drawn into the compressor.
In some embodiments of the present invention, the housing 1 includes a first housing 11 and a second housing 121, the second housing 121 being connected to the first housing 11. The first housing 11 and the second housing 121 may be riveted by high frequency heating using the wire 9, and the first housing 11 and the second housing 121 define a closed cavity, which reduces the outward transmission of sound waves and enhances the silencing effect of the silencer 100. Wherein the air inlet 121 is provided on the outer peripheral wall of the second housing 121 and the air outlet 111 is provided on the top wall of the first housing 11.
A compressor according to an embodiment of the present invention is described below with reference to fig. 1 to 5.
The compressor according to the embodiment of the present invention includes the above-described muffler 100.
According to the compressor provided by the embodiment of the invention, the inside of the shell 1 is divided into the plurality of closed silencing cavities through the partition plates, and the two adjacent silencing cavities are communicated through the inner connecting pipe, so that a good guiding effect on the flow direction of the refrigerant in the air suction process can be achieved, the generation of vortex in the process of flowing the refrigerant can be effectively reduced, the flowing resistance and the pressure loss of the refrigerant are reduced, the noise of the compressor is effectively reduced, and the integral performance of the compressor is ensured. Meanwhile, the inner cannula is matched with the silencing cavity, and the inlet pipe 2 is matched with the silencing cavity, so that gas can expand when flowing out of the inner cannula, and transmission loss can be generated due to sound wave reflection, so that silencing and noise reduction are realized, the noise of a compressor can be effectively reduced, and the purposes of energy conservation, noise reduction, silencing and vibration reduction are achieved. In addition, the silencer 100 has a simple structure and good silencing effect.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (16)
1. A muffler for a compressor, comprising:
the shell is provided with an air inlet and an air outlet, and an inlet pipe communicated with the air inlet is arranged in the shell;
at least one baffle plate arranged in the shell to divide the shell into a plurality of closed silencing cavities;
the inner inserting pipes are arranged on the partition plate to be connected with two adjacent silencing cavities, and the air inlet, the silencing cavities and the air outlet are sequentially connected to form an air flow channel;
the two partition boards are respectively a first partition board and a second partition board, the first partition board and the second partition board divide the interior of the shell into a first silencing cavity, a second silencing cavity and a third silencing cavity, the first silencing cavity is communicated with the air inlet, the first silencing cavity and the second silencing cavity are communicated through a first inner inserting pipe on the first partition board, the third silencing cavity is communicated with the air outlet, and the third silencing cavity is communicated with the second silencing cavity through a second inner inserting pipe on the second partition board;
the first baffle is located the below of second baffle, first baffle vertical setting, the second baffle level sets up, first amortization chamber with the second amortization chamber is located the both sides of first baffle, the third amortization chamber is located the upside of second baffle.
2. The muffler for a compressor as defined in claim 1, wherein the inner cannula is a round tube.
3. The muffler for a compressor as claimed in claim 2, wherein an outer diameter of the inner cannula is d1, the d1 satisfying: d1 is more than or equal to 6mm and less than or equal to 12mm, the wall thickness of the inner insertion tube is h1, and h1 satisfies the following conditions: h1 is more than or equal to 1.5mm and less than or equal to 2.5mm.
4. The muffler for a compressor as claimed in claim 1, wherein an inlet length of the inner insertion pipe is 0.47 to 0.53 times a length of the sound deadening chamber, and an outlet length of the inner insertion pipe is 0.22 to 0.28 times the length of the sound deadening chamber.
5. The muffler for a compressor as claimed in claim 4, wherein an inlet length of the inner insertion pipe is 0.5 times a length of the sound deadening chamber, and an outlet length of the inner insertion pipe is 0.25 times the length of the sound deadening chamber.
6. The muffler for a compressor as defined in claim 1, wherein the inner pipe is integrally formed with the partition plate corresponding thereto.
7. The muffler for a compressor as claimed in claim 1, wherein the inner pipe is disposed perpendicular to the partition plate corresponding thereto.
8. The muffler for a compressor as claimed in claim 1, wherein the housing is provided with a limiting groove, and the first partition plate is provided in the limiting groove.
9. The muffler for a compressor as defined in claim 1, wherein the suction port of the first inner cannula is directly opposite the air inlet port.
10. The muffler for a compressor as claimed in claim 1, wherein oil leakage holes are formed at the bottom of the housing and the second partition plate.
11. The muffler for a compressor as defined in claim 1, wherein the inlet pipe is an elbow.
12. The muffler for a compressor as claimed in claim 11, wherein the height of the inlet pipe is 0.5 times or less the height of the muffling chamber where the inlet pipe is located.
13. The muffler for a compressor according to claim 1, wherein an outer diameter of the inlet pipe is d2, the d2 satisfying: d2 is more than or equal to 6mm and less than or equal to 12mm, the wall thickness of the inlet pipe is h2, and h2 meets the following conditions: h2 is more than or equal to 1.5mm and less than or equal to 2.5mm.
14. The muffler for a compressor as claimed in claim 1, wherein a connection pipe communicating with the inlet port is provided at an outer circumferential wall of the housing, and a cross-sectional area of at least a portion of the connection pipe is gradually increased in a direction from a fixed end to a free end of the connection pipe.
15. The muffler for a compressor as claimed in claim 1, wherein the housing includes:
a first housing;
and the second shell is connected with the first shell.
16. A compressor comprising a muffler for a compressor according to any one of claims 1 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810010836.8A CN107989775B (en) | 2018-01-05 | 2018-01-05 | Muffler for compressor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810010836.8A CN107989775B (en) | 2018-01-05 | 2018-01-05 | Muffler for compressor and compressor |
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| Publication Number | Publication Date |
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| CN107989775A CN107989775A (en) | 2018-05-04 |
| CN107989775B true CN107989775B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810010836.8A Active CN107989775B (en) | 2018-01-05 | 2018-01-05 | Muffler for compressor and compressor |
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| CN (1) | CN107989775B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873036A (en) * | 2018-08-31 | 2020-03-10 | 安徽美芝制冷设备有限公司 | Silencer, compressor and refrigeration equipment |
| CN112761931B (en) * | 2019-10-21 | 2023-07-04 | 安徽美芝制冷设备有限公司 | Connection structure, exhaust muffler, muffler and compressor |
| CN111140466A (en) * | 2019-12-19 | 2020-05-12 | 西安交通大学 | Suction muffler for compressor |
| CN113446746B (en) * | 2020-03-27 | 2022-10-28 | 青岛海尔电冰箱有限公司 | Refrigerating system and refrigerator |
| CN113446747B (en) * | 2020-03-27 | 2022-11-18 | 青岛海尔电冰箱有限公司 | Refrigerating system and refrigerator |
| CN111963409B (en) * | 2020-08-19 | 2022-08-30 | 江苏白雪制冷机电有限公司 | Air suction silencer |
| CN114576138B (en) * | 2020-11-30 | 2023-04-28 | 安徽美芝制冷设备有限公司 | Suction muffler |
| EP4033097B1 (en) | 2020-11-30 | 2024-04-24 | Anhui Meizhi Compressor Co., Ltd. | Suction muffler |
| CN112780525A (en) * | 2020-12-24 | 2021-05-11 | 加西贝拉压缩机有限公司 | Air suction silencer for reciprocating piston compressor |
| CN112901453B (en) * | 2021-01-29 | 2023-08-01 | 青岛万宝压缩机有限公司 | Five-cavity air suction muffler of compressor and compressor |
| CN113357127B (en) * | 2021-06-23 | 2022-09-09 | 广州万宝集团压缩机有限公司 | Air suction silencer, compressor and temperature adjusting equipment |
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| CN107989775A (en) | 2018-05-04 |
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