CN109681431B - Compressor and air conditioner - Google Patents
Compressor and air conditioner Download PDFInfo
- Publication number
- CN109681431B CN109681431B CN201910166199.8A CN201910166199A CN109681431B CN 109681431 B CN109681431 B CN 109681431B CN 201910166199 A CN201910166199 A CN 201910166199A CN 109681431 B CN109681431 B CN 109681431B
- Authority
- CN
- China
- Prior art keywords
- muffler
- bearing
- compressor
- silencing cavity
- sound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000012530 fluid Substances 0.000 claims abstract description 51
- 230000030279 gene silencing Effects 0.000 claims abstract description 39
- 230000006835 compression Effects 0.000 claims abstract description 35
- 238000007906 compression Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims 1
- 238000013016 damping Methods 0.000 abstract description 20
- 230000003584 silencer Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
- F04C29/065—Noise dampening volumes, e.g. muffler chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Compressor and air conditioner relate to air conditioner technical field. The compressor comprises a first bearing, a second bearing, a compression cylinder, a first muffler and a second muffler, wherein the compression cylinder is positioned between the first bearing and the second bearing and is provided with a fluid outlet; the first muffler is positioned between the first bearing and the second bearing and is provided with a first sound-eliminating cavity; the second muffler is positioned on one side of the first bearing, which is away from the second bearing, and is provided with a second silencing cavity; the fluid outlet, the second sound-damping cavity and the first sound-damping cavity are sequentially communicated. The air conditioner comprises the compressor. The first silencer and the second silencer reduce the noise of the fluid twice, so that the airflow noise of the compressor is reduced, and the noise reduction performance of the compressor is improved. In addition, the structural size of the compressor can not be increased by the arrangement of the first muffler, so that the noise reduction performance of the compressor is improved on the premise of not increasing the structural size, and the compressor is facilitated to be miniaturized.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a compressor and an air conditioner.
Background
When the compressor works, due to the characteristic of the working principle, noise influence is inevitably generated, and the generation of the compressor noise is various, including airflow noise, mechanical noise, electromagnetic noise and the like. Wherein the air flow noise is a major noise source of the compressor and is mainly caused by the pulsation of the high pressure fluid discharged from the compression chamber. In the prior art, in order to reduce noise of exhaust gas flow of a rotary compressor, a muffler is generally installed above a main bearing or below a sub bearing, and high-pressure fluid discharged from a compression chamber flows through the muffler to be muffled first and then is discharged from a fluid outlet of the compressor.
However, due to space limitations, the spatial structural layout of the muffler above the main bearing or below the auxiliary bearing is limited, resulting in limited performance of the muffler and still greater exhaust gas flow noise of the compressor.
Disclosure of Invention
The invention mainly aims to provide a compressor with good noise elimination performance and compact structure.
In order to achieve the above main object, the present invention provides a compressor including a first bearing, a second bearing, a compression cylinder, a first muffler and a second muffler, the compression cylinder being located between the first bearing and the second bearing, the compression cylinder having a fluid outlet; the first muffler is positioned between the first bearing and the second bearing, and is provided with a first silencing cavity or the first muffler and the first bearing enclose a first silencing cavity; the second muffler is positioned on one side of the first bearing, which is away from the second bearing, and is provided with a second silencing cavity or the second muffler and the first bearing enclose a second silencing cavity; the fluid outlet, the first sound-damping cavity and the second sound-damping cavity are sequentially communicated, or the fluid outlet, the second sound-damping cavity and the first sound-damping cavity are sequentially communicated.
Therefore, through the arrangement and structural design of the compressor, the first silencing cavity and the second silencing cavity which are connected in series are arranged, and high-temperature and high-pressure fluid can be subjected to silencing and noise reduction twice through the first silencing cavity and the second silencing cavity after flowing out of the compression cavity, so that the noise reduction performance of the compressor is improved; in addition, because the first sound-absorbing cavity is arranged between the first bearing and the second bearing, a larger space is reserved between the main bearing and the auxiliary bearing, the space is effectively utilized by the first muffler, the structural size of the compressor is not increased, the noise reduction performance of the compressor is improved on the premise that the structural size of the compressor is not increased, and the noise reduction performance of the compressor and the miniaturization design of the compressor are improved.
In a preferred embodiment, the first muffler is a resistive muffler.
In another preferred embodiment, the first muffler is ring-shaped with a notch, and the compression cylinder is located inside the ring of the first muffler.
From the above, because the fluid inlet of the compression chamber needs to be communicated with the fluid separator through the pipeline, the first muffler is arranged in a ring shape with a notch, so that the pipeline connecting the fluid separator and the fluid inlet can be arranged through the notch, and heat transfer from high-temperature and high-pressure fluid in the first muffler to the fluid newly sucked into the compression chamber is avoided.
Still another preferred embodiment is that a gap is left between the first muffler and the compression cylinder.
From the above, it is possible to further avoid heat transfer from the high-temperature and high-pressure fluid in the first muffler to the fluid newly sucked into the compression chamber.
In a further preferred embodiment, the first sound-damping chamber has a contraction chamber and an expansion chamber.
From the above, the sound waves of the fluid are reflected and interfere with each other in the contraction cavity and the expansion cavity of the first muffler, so that the purpose of reducing the fluid noise is achieved.
In a further preferred embodiment, the first sound-deadening chamber is connected to the second sound-deadening chamber by a connecting pipe.
In another preferred scheme, a first exhaust hole is formed in the first bearing, and the fluid outlet is communicated with the second silencing cavity through the first exhaust hole.
Further, the aperture of the first exhaust hole is 1mm to 10mm.
In a further preferred scheme, a second exhaust hole is formed in the first bearing, and the first silencing cavity is communicated with the second silencing cavity through the second exhaust hole.
Another object of the present invention is to provide an air conditioner having a compact structure with good sound damping performance of a compressor.
In order to achieve the other object, the present invention provides an air conditioner, comprising the compressor.
Therefore, due to the adoption of the compressor, the first silencer and the second silencer can reduce the noise of the fluid twice, so that the air flow noise of the compressor can be reduced, and the noise reduction performance of the compressor can be improved. In addition, the structural size of the compressor can not be increased by the arrangement of the first muffler, so that the noise reduction performance of the compressor is improved on the premise of not increasing the structural size, and the compressor is facilitated to be miniaturized.
Drawings
FIG. 1 is a cross-sectional view of a compressor embodiment and a dispenser of the present invention;
fig. 2 is a structural view of a first muffler in an embodiment of the compressor of the present invention.
The invention is further described below with reference to the drawings and examples.
Detailed Description
Compressor embodiment:
referring to fig. 1 and 2, the compressor of the present embodiment includes a housing 1, a main bearing 2, a sub-bearing 3, a crankshaft 4, a compression cylinder 6, rollers 7, a first muffler 8, and a second muffler 9. The main bearing 2, the auxiliary bearing 3, the crankshaft 4, the compression cylinder 6, the rollers 7, the first muffler 8 and the second muffler 9 are all arranged in the shell 1, the crankshaft 4 is rotatably supported on the main bearing 2 and the auxiliary bearing 3, the rollers 7 are sleeved on the connecting rod journals of the crankshaft 4, the rollers 7 and the connecting rod journals are positioned in the cavity of the compression cylinder 6, the cavity of the compression cylinder 6 is provided with a fluid inlet (not shown in the figure) and a fluid outlet (not shown in the figure), and the fluid inlet is communicated with the cavity of the liquid distributor 10 through the input pipe 11.
In the axial direction, a first muffler 8 is located between the main bearing 2 and the sub-bearing 3, the first muffler 8 being a resistant muffler, the first muffler 8 being in the shape of an annular housing with a notch 87. Radially, the compression cylinder 6 is located inside the ring of the first muffler 8, and an input pipe 11 connected between the compression cylinder 6 and the liquid separator 10 passes through a notch 87 of the first muffler 8.
Specifically, the first muffler 8 is an annular shell 83 having an annular cavity groove 82, an opening of the annular cavity groove 81 faces the main bearing 2, the annular shell 83 and the main bearing 2 together enclose a first muffler cavity 81, three shrinkage portions 84 and four expansion portions 85 are formed in a radial section of the annular shell 83 along a circumferential direction of the first muffler 8, mounting holes 86 are formed in end surfaces of the annular shell 83 corresponding to the two shrinkage portions 84, and bolts pass through the mounting holes to be fixedly connected with the main bearing 1; the first muffler 8 has a first sound-damping chamber 81, that is, a radial cross section of the first sound-damping chamber 81 has a contracted chamber and an expanded chamber, and sound waves of fluid are reflected and interfere with each other in the contracted chamber and the expanded chamber of the first muffler 8, thereby achieving the purpose of reducing fluid noise.
The second muffler 9 is located on the side of the main bearing 2 facing away from the auxiliary bearing 3, the second muffler 9 having a second sound-damping chamber 91.
The main bearing 2 is provided with an axial first exhaust hole (not shown in the figure), the first exhaust hole communicates the fluid inlet of the compression cylinder 6 with the second damping chamber 91, and the second damping chamber 91 communicates with the first damping chamber 81 through the connecting pipe 5.
The high-temperature and high-pressure fluid flowing out of the fluid outlet of the compression cylinder 6 enters the second silencing cavity 91 through the first exhaust hole for primary silencing and noise reduction, and then flows into the first silencing cavity 81 through the connecting pipe 5 for further silencing and noise reduction.
Because the first muffler 8 is arranged between the main bearing 2 and the auxiliary bearing 3, the first muffler 8 and the second muffler 9 are used for reducing the noise of the fluid twice, thereby being beneficial to reducing the airflow noise of the compressor and improving the noise reduction performance of the compressor. In addition, because the main bearing 2 and the auxiliary bearing 3 have larger axial space, the first muffler 8 effectively utilizes the space, the axial structural size of the compressor is not increased, the noise reduction performance of the compressor is improved on the premise of not increasing the structural size, and the compressor is beneficial to the miniaturization design of the compressor.
Preferably, a radial gap is left between the outer wall of the compression cylinder 6 and the inner wall of the first muffler 8, so that heat transfer from the high-temperature and high-pressure fluid in the first muffler 8 to the fluid newly sucked into the compression chamber can be avoided.
Alternatively, the first muffler 8 itself may have the first sound-deadening chamber 81, in addition to the first sound-deadening chamber 81 being surrounded by the first muffler 8 together with the main bearing 2. Similarly, the second muffler chamber 91 may be surrounded by the second muffler 9 and the main bearing 2.
Alternatively, besides the connection pipe 5 is used to connect the first sound-eliminating cavity 81 and the second sound-eliminating cavity 91, a second air vent (not shown in the figure) may be arranged on the main bearing 2, the second air vent is used to connect the first sound-eliminating cavity 81 and the second sound-eliminating cavity 91, and the high-temperature and high-pressure fluid discharged from the compression cavity is subjected to primary sound-eliminating and noise-reducing through the second sound-eliminating cavity 91, and then flows to the first sound-eliminating cavity 81 through the second air vent to perform secondary sound-eliminating and noise-reducing.
Alternatively, the cross-sectional shape of the first vent hole may be circular, square or oval, and similarly, the cross-sectional shape of the second vent hole and the connecting pipe may be circular, directional or oval.
Preferably, the aperture of the first vent is between 1mm and 10mm, for example the aperture of the first vent is 5mm. Similarly, the aperture of the second exhaust hole is between 1mm and 10mm, and the section diameter of the connecting pipe is between 1mm and 10mm.
Alternatively, the second muffler 9 may be disposed on a side of the auxiliary bearing 3 facing away from the main bearing 2, and the high-temperature and high-pressure fluid flows out from the fluid outlet of the compression cylinder 6, flows into the second muffler chamber 91 through the exhaust hole on the auxiliary bearing 3 to perform primary noise reduction, and flows into the first muffler chamber 81 through the connecting pipe between the second muffler 9 and the third muffler to perform secondary noise reduction.
Alternatively, after the high-pressure fluid flows out from the fluid outlet of the compression cylinder 6, the high-pressure fluid may first flow through the first muffler 8 to perform primary noise reduction, then flow from the first muffler 8 to the second muffler 9 to perform secondary noise reduction, and finally flow out from the second muffler 9 to the fluid outlet of the compressor. Specifically, the fluid outlet of the compression cylinder 6 is communicated with the first sound-damping chamber 81 through a radial exhaust hole, and the high-temperature and high-pressure air flow flows from the fluid outlet of the compression cylinder 6 to the first sound-damping chamber 81 through the radial exhaust hole for primary sound-damping, and then flows to the second sound-damping chamber 91 through the second exhaust hole or connecting pipe for secondary sound-damping. Therefore, the air flow flowing out of the compression cylinder 6 can be noise reduced twice, the noise reduction performance of the compressor can be improved, and the aim of the invention can be achieved.
Of course, the compressor may also comprise a third muffler (not shown in the figures) on the side of the auxiliary bearing 3 facing away from the main bearing 2, the third muffler having a third sound-damping chamber or being enclosed by the third muffler and the auxiliary bearing 3; the fluid outlet, the second sound-deadening chamber 91, the first sound-deadening chamber 81 and the third sound-deadening chamber are sequentially communicated, or the fluid outlet, the third sound-deadening chamber, the first sound-deadening chamber 81 and the second sound-deadening chamber 91 are sequentially communicated. After being discharged from the fluid outlet of the compression cylinder 6, the high-temperature and high-pressure fluid sequentially passes through the third silencing cavity, the first silencing cavity 81 and the second silencing cavity 91 to perform three times of silencing and noise reduction, so that the exhaust noise of the compressor is further reduced, and the noise reduction performance of the compressor is further improved.
Of course, there are various communication modes among the first sound-deadening chamber 81, the second sound-deadening chamber 91 and the third sound-deadening chamber, for example, the first sound-deadening chamber 81, the third sound-deadening chamber and the second sound-deadening chamber 91 may be sequentially communicated, or the second sound-deadening chamber 91, the first sound-deadening chamber 81 and the third sound-deadening chamber may be sequentially communicated.
Air conditioner embodiment:
the air conditioner of the embodiment comprises the compressor. Due to the adoption of the compressor, the first silencer and the second silencer are used for reducing the noise of the fluid twice, so that the airflow noise of the compressor is reduced, and the noise reduction performance of the compressor is improved. In addition, the axial structural size of the compressor can not be increased by the arrangement of the first muffler, so that the noise reduction performance of the compressor is improved on the premise of not increasing the structural size, and the compressor is facilitated to be miniaturized.
Finally, it should be emphasized that the foregoing description is merely illustrative of the preferred embodiments of the invention, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the invention, and any such modifications, equivalents, improvements, etc. are intended to be included within the scope of the invention.
Claims (9)
1. A compressor comprising a first bearing, a second bearing, and a compression cylinder, the compression cylinder being located between the first bearing and the second bearing, the compression cylinder having a fluid outlet;
the method is characterized in that:
the first muffler is positioned between the first bearing and the second bearing, and is provided with a first silencing cavity or the first silencing cavity is surrounded by the first muffler and the first bearing;
the second muffler is positioned on one side of the first bearing, which is away from the second bearing, and is provided with a second silencing cavity or the second muffler and the first bearing enclose a second silencing cavity;
the fluid outlet, the first silencing cavity and the second silencing cavity are sequentially communicated, or the fluid outlet, the second silencing cavity and the first silencing cavity are sequentially communicated;
the first muffler is an annular shell with a notch, and the compression cylinder is positioned on the inner side of the ring of the first muffler;
a gap is reserved between the first muffler and the compression cylinder.
2. The compressor as set forth in claim 1, wherein:
the first muffler is a resistive muffler.
3. The compressor as set forth in claim 1, wherein:
the first muffling chamber has a contracting chamber and an expanding chamber.
4. A compressor according to any one of claims 1 to 3, wherein:
the first silencing cavity is communicated with the second silencing cavity through a connecting pipe.
5. A compressor according to any one of claims 1 to 3, wherein:
the first bearing is provided with a first exhaust hole, and the fluid outlet is communicated with the second silencing cavity through the first exhaust hole.
6. The compressor as set forth in claim 5, wherein:
the aperture of the first exhaust hole is 1mm to 10mm.
7. A compressor according to any one of claims 1 to 3, wherein:
the first bearing is provided with a second exhaust hole, and the first silencing cavity is communicated with the second silencing cavity through the second exhaust hole.
8. A compressor according to any one of claims 1 to 3, wherein:
the compressor further comprises a third muffler, wherein the third muffler is positioned on one side of the second bearing, which is away from the first bearing, and the third muffler is provided with a third silencing cavity or the third muffler and the second bearing enclose the third silencing cavity;
the first silencing cavity, the second silencing cavity and the third silencing cavity are communicated in series.
9. An air conditioner, characterized in that:
comprising a compressor according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910166199.8A CN109681431B (en) | 2019-03-06 | 2019-03-06 | Compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910166199.8A CN109681431B (en) | 2019-03-06 | 2019-03-06 | Compressor and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109681431A CN109681431A (en) | 2019-04-26 |
| CN109681431B true CN109681431B (en) | 2024-02-27 |
Family
ID=66197627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910166199.8A Active CN109681431B (en) | 2019-03-06 | 2019-03-06 | Compressor and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109681431B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08277788A (en) * | 1995-04-05 | 1996-10-22 | Toshiba Corp | Rotary compressor |
| CN104454448A (en) * | 2014-11-19 | 2015-03-25 | 广东美芝制冷设备有限公司 | Compressor |
| CN209569163U (en) * | 2019-03-06 | 2019-11-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner |
-
2019
- 2019-03-06 CN CN201910166199.8A patent/CN109681431B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08277788A (en) * | 1995-04-05 | 1996-10-22 | Toshiba Corp | Rotary compressor |
| CN104454448A (en) * | 2014-11-19 | 2015-03-25 | 广东美芝制冷设备有限公司 | Compressor |
| CN209569163U (en) * | 2019-03-06 | 2019-11-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109681431A (en) | 2019-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10907517B2 (en) | Silencer and vehicle engine including same | |
| EP2582980B1 (en) | Multi-stage low pressure drop muffler | |
| CN104234890A (en) | High-frequency muffler used on automobile intercooler intake pipe | |
| CN113357129B (en) | Exhaust noise reduction structure, compressor and refrigeration equipment | |
| CN109681431B (en) | Compressor and air conditioner | |
| CN116717905A (en) | Adjustable muffler and air conditioner | |
| CN105927594A (en) | Muffler of turbocharger | |
| CN209569163U (en) | Compressor and air conditioner | |
| CN217272767U (en) | Steam silencer | |
| CN212208912U (en) | Impedance composite exhaust silencing device and compressor | |
| CN114763754A (en) | Silencer | |
| CN210509512U (en) | Air compressor exhaust muffler | |
| CN218722426U (en) | Gas-liquid separator, compressor assembly and air conditioner with compressor assembly | |
| CN217152296U (en) | Exhaust silencing device of automotive scroll compressor and compressor thereof | |
| CN212079557U (en) | Noise reduction structure of compressor | |
| CN213298284U (en) | Flange and compressor | |
| CN220791388U (en) | Muffler device, air inlet system and vehicle | |
| CN220059901U (en) | Compressor shell and compressor | |
| CN208364395U (en) | Compressor pump and rotary compressor | |
| CN114876765B (en) | Silencer, compressor and refrigerator | |
| CN214330727U (en) | Silencer | |
| CN218118142U (en) | Noise silencer | |
| CN221033140U (en) | Pump body structure of compressor and compressor | |
| CN219413045U (en) | Muffler and noise elimination system | |
| CN111287873B (en) | Silencer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |