CN212803502U - Air suction silencing cavity for refrigeration compressor - Google Patents
Air suction silencing cavity for refrigeration compressor Download PDFInfo
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- CN212803502U CN212803502U CN202021054138.7U CN202021054138U CN212803502U CN 212803502 U CN212803502 U CN 212803502U CN 202021054138 U CN202021054138 U CN 202021054138U CN 212803502 U CN212803502 U CN 212803502U
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Abstract
The utility model discloses a amortization chamber of breathing in for compressor belongs to muffler technical field, including casing, intake pipe and outlet duct, the amortization room that has a plurality of walls in the casing, the amortization room includes first amortization room, second amortization room and third amortization room, the intake pipe passes first amortization room just the gas outlet of intake pipe extends to in the second amortization room, lie in the intake pipe the part in the first amortization room is equipped with the expansion hole, second amortization room and third amortization room are through the linker intercommunication, the gas outlet of linker with the outlet duct intercommunication. The utility model discloses a first anechoic chamber, second anechoic chamber and third anechoic chamber are established ties, form the structure of Helmholtz resonant cavity-expansion chamber-Helmholtz resonant cavity, and gas only once expands and once contracts in the whole airflow channel, very big reduction gaseous on-way resistance and loss of pressure, multiplicable efficiency of breathing in promotes the compressor performance.
Description
Technical Field
The utility model relates to a muffler technical field, in particular to a amortization chamber of breathing in for compressor.
Background
With the increasing improvement of the living standard of people and the pursuit of living quality, the requirement on the noise quality of the household refrigerator is higher and higher; in addition, the housing area caused by high housing price develops towards miniaturization and multifunction, and the national requirements on energy conservation and consumption reduction in reasonable resource use lead the household refrigerator to move towards frequency conversion, energy conservation and mute miniaturization. And the compressor is a key component for power consumption and noise generation of the refrigerator. The compressor is used as the main noise generating source of the refrigerator, and is the noise generated by the joint coupling of the friction of a mechanical kinematic pair of the compressor, the opening and closing of a suction and exhaust valve, electromagnetic excitation, other vibration and the like. Because the noise source of the compressor is complex, the suction muffler arranged in the suction oil path part of the compressor is an important part of the compressor for active noise reduction, and is always the focus of noise reduction design.
Chinese patent No. CN201810010836.8 discloses a muffler for a compressor and 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 partition board arranged in the shell to divide the shell into a plurality of closed silencing cavities; the air inlet, the plurality of silencing cavities and the air outlet are sequentially connected to form an air flow channel. However, with the above structure, the gas flow is expanded and contracted at least 3 times in the process, and each expansion and contraction causes the increase of the gas flow resistance, the more the number of stages is, the larger the resistance is, the lower the gas suction efficiency is, and the contradiction between the gas suction/discharge performance and the noise is difficult to balance; secondly, the expansion cavities have good high-frequency noise elimination capability and poor low-frequency noise elimination capability, and the low-frequency noise elimination capability is insufficient only through a plurality of expansion cavities, so that obvious cavity resonance noise of the compressor is caused, full-band noise reduction is difficult to realize, and the noise elimination frequency band is still to be improved.
SUMMERY OF THE UTILITY MODEL
An insufficient to above prior art, the utility model aims to provide a noise damping chamber of breathing in for compressor establishes ties through first noise damping chamber, second noise damping chamber and third noise damping chamber, forms the structure of helmholtz resonant cavity-expansion chamber-helmholtz resonant cavity, and gas only once expands and once contracts in the whole airflow channel, very big reduction gaseous along journey resistance and loss of pressure, multiplicable efficiency of breathing in, promotion compressor performance.
In order to achieve the above object, the present invention is specifically realized by the following techniques:
the utility model provides a hush air chamber for compressor, includes casing, intake pipe and outlet duct, the hush air chamber that has a plurality of partitions in the casing, the hush air chamber includes first hush air chamber, second hush air chamber and third hush air chamber, the intake pipe passes first hush air chamber just the gas outlet of intake pipe extends to in the second hush air chamber, the part that is located in the first hush air chamber in the intake pipe is equipped with the expansion hole, second hush air chamber and third hush air chamber pass through the linker intercommunication, the gas outlet of linker with the outlet duct intercommunication.
Adopt above-mentioned technical scheme: the air inlet pipe, the first silencing chamber, the second silencing chamber, the third silencing chamber and the air outlet pipe are sequentially connected to form an air flow channel; the first silencing chamber and the third silencing chamber are designed into Helmholtz resonant cavities to achieve sufficient low-frequency noise reduction capacity, and the second silencing chamber is designed into an expansion cavity to achieve sufficient high-frequency noise reduction capacity. When the external noise frequency is the same as the natural frequency of the resonance system, the air columns in the expansion holes resonate and violently rub with the hole walls, and the friction can consume sound energy, so that the low-frequency noise can be eliminated; then the gas after the secondary noise reduction shrinks and enters the communicating vessel and flows into the third sound-deadening chamber, and the low-frequency noise of the other frequency band is eliminated after the secondary noise reduction through resonance noise reduction, so that the noise is greatly reduced, and a good full-frequency-band noise reduction effect is achieved. Secondly, gas only once expands and once contracts in whole air current passageway, is equivalent to single expansion chamber structure, very big reduction gaseous on-the-way resistance and pressure loss, the resistance of breathing in is little, and the efficiency of breathing in is high, can promote compressor performance.
Further, the volume ratio of the first silencing chamber to the second silencing chamber to the third silencing chamber is 1-1.5: 2-2.5: 1.
further, the volume ratio of the first sound-deadening chamber to the second sound-deadening chamber to the third sound-deadening chamber is 1.25: 2.25: 1.
in general, the volume ratio of the first, second, and third muffling chambers may be set arbitrarily, and the flow of the refrigerant gas is not hindered, but the volumes of the first, second, and third muffling chambers are different from each other so that the muffling frequencies of the muffling chambers are separated from each other in order to generate as little noise as possible and widen the muffling band in the flow of the gas. Under the volume ratio, the first silencing chamber and the third silencing chamber enhance the silencing capability of 500-1000 Hz at low frequency, and the second silencing chamber enables the high frequency of 3150-6300 Hz to have good silencing capability; not only can improve the total noise elimination amount, but also can improve the frequency characteristic of the silencer, and obtain better noise reduction and elimination effect in a wide frequency band range.
Furthermore, the communicating vessel is a Z-shaped tube and comprises a long vertical tube section, a horizontal tube section and a short vertical tube section which are sequentially connected, and the long vertical tube section, the horizontal tube section and the short vertical tube section are in arc transition. The gas entering the communicating vessel flows linearly firstly, then enters the horizontal pipe section through arc transition, and then enters the short vertical pipe section through arc transition, so that the gas flow direction in the gas absorption process is well guided, the generation of vortex during the gas flow can be effectively reduced, the gas flow of the communicating vessel is more stable, the flow resistance can be reduced, and the pressure loss can be reduced; on the premise of ensuring enough air inflow or air outflow, the flow speed of the gas in the communicating vessel is stably reduced, so that the flow of the gas can generate less noise as much as possible.
Further, the short vertical pipe section is arranged right opposite to the air inlet of the air outlet pipe, and the gap of the slit between the short vertical pipe section and the air outlet pipe is 0.5-2.5 mm.
Further, the short vertical pipe section is directly connected with the air outlet pipe, a through hole is formed in the connecting portion of the short vertical pipe section and the air outlet pipe, and the diameter of the through hole is 2.5-6 mm.
Furthermore, the shell is internally provided with a plurality of clapboards, each clapboard comprises a horizontal clapboard and a vertical clapboard which are perpendicular to each other, the shell is divided into a third silencing chamber and a lower silencing chamber by the horizontal clapboard, the lower silencing chamber is internally provided with the vertical clapboard, and the lower silencing chamber is divided into a first silencing chamber and a second silencing chamber by the vertical clapboard. The arrangement of the silencing chambers is more compact, the reduction of the volume of the air suction silencing cavity is facilitated, and the air suction silencing chamber is smaller.
Furthermore, oil leakage holes are formed in the first silencing chamber, the second silencing chamber and the third silencing chamber, so that lubricating oil can be conveniently discharged from the accommodating cavity to prevent the lubricating oil from influencing the silencing effect.
The utility model has the advantages that:
1. the utility model discloses a first anechoic chamber, second anechoic chamber and third anechoic chamber are established ties, form the structure of Helmholtz resonant cavity-expansion chamber-Helmholtz resonant cavity, and gas only once expands and once contracts in the whole airflow channel, very big reduction gaseous on-way resistance and loss of pressure, multiplicable efficiency of breathing in promotes the compressor performance.
2. The utility model discloses a low frequency noise and high frequency noise are eliminated respectively to first anechoic room, second anechoic room, and the low frequency noise of another frequency channel is eliminated in the replenishment of rethread third anechoic room to obtain best low frequency noise elimination frequency and noise elimination volume, realize the full frequency channel noise reduction noise elimination effect, improve noise reduction efficiency, effectively balance the compressor performance promotion and fall the contradiction between the making an uproar.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is an exploded schematic view of a suction muffler chamber for a refrigerant compressor of embodiment 1;
FIG. 2 is a schematic view showing the internal structure of a suction muffler chamber for a refrigerating compressor according to embodiment 1;
FIG. 3 is a schematic structural view of a schematic view of a communicating vessel in embodiment 1;
in the figure, 1, an upper shell; 2. a lower case; 3. an air inlet pipe; 4. an air outlet pipe; 5. a first muffling chamber; 6. a second muffling chamber; 7. a third anechoic chamber; 8. a horizontal partition plate; 9. a vertical partition; 10. a communicating vessel; 101. a long vertical pipe section; 102. a horizontal pipe section; 103. a short vertical pipe section; 11. expanding the hole; 12. an oil leakage hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Example 1
The utility model provides a amortization chamber of breathing in for compressor, refers to fig. 1 ~ 3, includes epitheca 1 and inferior valve 2, epitheca 1 lid is established form complete casing on the inferior valve 2, the lateral wall of inferior valve 2 is equipped with intake pipe 3, the middle part of epitheca 1 is equipped with outlet duct 4, epitheca 1 with the holding chamber is injectd in the cooperation of inferior valve 2, the holding intracavity is provided with at least one baffle in order to incite somebody to action the holding chamber marks off the amortization room of a plurality of partitions. Those skilled in the art will appreciate that the baffles may be arranged in a variety of ways, such as a plurality of horizontal baffles 8 or a plurality of vertical baffles 9 arranged parallel to each other to form a multiple chamber side-by-side arrangement or a multiple chamber side-by-side arrangement. In the embodiment, in order to make the structure of the air suction and sound attenuation cavity of the silencer smaller and more compact, the partition plate comprises a horizontal partition plate 8 and a vertical partition plate 9 which are perpendicular to each other, the horizontal partition plate 8 divides the accommodating cavity into a third sound attenuation chamber 7 and a lower sound attenuation chamber, and a two-cavity parallel arrangement structure is formed; the lower silencing chamber is internally provided with a vertical partition plate 9, the lower silencing chamber is divided into a first silencing chamber 5 and a second silencing chamber 6 by the vertical partition plate 9, a two-cavity parallel arrangement structure is formed, and the partition plate is 1.5-2 mm thick and ensures that the partition plate has good rigidity.
The air inlet pipe 3 penetrates through the first silencing chamber 5, an air outlet of the air inlet pipe extends into the second silencing chamber 6 and is communicated with the second silencing chamber 6, an expansion hole 11 communicated with the first silencing chamber 5 is formed in the portion, located in the first silencing chamber 5, of the air inlet pipe 3, the second silencing chamber 6 is communicated with the third silencing chamber 7 through a communicating device 10, preferably, the communicating device 10 is a Z-shaped pipe, referring to fig. 3, the Z-shaped pipe comprises a long vertical pipe section 101, a horizontal pipe section 102 and a short vertical pipe section 103 which are sequentially connected, and the long vertical pipe section 101 and the horizontal pipe section 102 are in arc transition with the horizontal pipe section 102 and the short vertical pipe section 103. The long vertical pipe section 101 penetrates through the horizontal partition plate 8 and is fixedly connected with the horizontal partition plate 8, the horizontal pipe section 102 is arranged in parallel with the horizontal partition plate 8, and the horizontal pipe section 102 is fixedly arranged at the upper end of the horizontal partition plate 8, so that the communicating vessel 10 is fixedly arranged in the accommodating cavity, and the fixing stability of the communicating vessel 10 is improved. The short vertical pipe section 103 is arranged right opposite to the air inlet of the air outlet pipe 4, and a slit gap between the short vertical pipe section and the air outlet pipe is 0.5-2.5 mm, so that a slit resonance mode is formed. Of course, the short vertical pipe section 103 may be directly connected to the air outlet pipe 4, and a through hole having a diameter of 2.5 to 6mm may be formed at the connection portion to form a small hole resonance form similar to the first muffling chamber 5. Above-mentioned Z type tubular construction makes the gaseous straight line flow of getting into linker 10 earlier, then enters into horizontal pipe segment 102 through the arc transition, and the arc transition later enters into short vertical pipe segment 103, has played fine guide effect to the gaseous flow direction of inhaling in-process, and the gaseous flow of linker 10 is more steady, and existing patency is good, flow resistance is low, the little advantage of loss of pressure, has the good advantage of circuitous nature, anechoic effect simultaneously again.
In order to remove the lubricating oil from the accommodating cavity in time to prevent the lubricating oil from affecting the silencing effect, oil leakage holes 12 for discharging the oil are formed in the first silencing chamber 5, the second silencing chamber 6 and the third silencing chamber 7, see fig. 2, the oil leakage holes 12 in the first silencing chamber 5 are formed in the intake pipe 3 and are adjacent to the expanding holes 11, the oil leakage holes 12 in the second silencing chamber 6 are formed in the bottom of the lower shell 2, and the oil leakage holes 12 in the third silencing chamber 7 are formed in the horizontal partition plate 8 and are formed corresponding to the oil leakage holes 12 in the second silencing chamber 6.
Adopt above-mentioned technical scheme: the air inlet pipe 3, the first silencing chamber 5, the second silencing chamber 6, the communicating vessel 10, the third silencing chamber 7 and the air outlet pipe 4 are sequentially connected to form an air flow channel, the first silencing chamber 5, the second silencing chamber 6 and the third silencing chamber 7 are connected in series to form a structure of a Helmholtz resonant cavity, an expansion cavity and a Helmholtz resonant cavity, a structure equivalent to a single expansion cavity is formed, air in the whole air flow channel is expanded and contracted once, the on-way resistance and the pressure loss of the air are greatly reduced, the air suction efficiency can be increased, and the performance of the refrigeration compressor is improved.
Example 2
Example 2 is essentially the same as example 1, except that: in order to generate as little noise as possible by the flow of the air flow and to make the silencing frequency of each silencing chamber different, thereby widening the silencing frequency band and improving the silencing capability of the air suction silencing chamber, the volumes of the first silencing chamber 5, the second silencing chamber 6 and the third silencing chamber 7 are different, and the volume ratio of the first silencing chamber 5, the second silencing chamber 6 and the third silencing chamber 7 is preferably 1-1.5: 2-2.5: 1; more preferably, the volume ratio of the first sound-deadening chamber 5, the second sound-deadening chamber 6, and the third sound-deadening chamber 7 is 1.25: 2.25: 1. the characteristic frequency of the noise of the reciprocating compressor is usually around 800Hz at low frequency and 4000Hz at high frequency, and under the volume ratio, the first silencing chamber 5 and the third silencing chamber 7 enhance the silencing capability of 500-1000 Hz at low frequency, and the second silencing chamber 6 has good silencing capability of 3150-6300 Hz at high frequency. Therefore, the noise reduction frequency band can be widened, the full-band noise reduction and elimination effect is achieved, and the contradiction between the performance improvement and the noise reduction of the compressor is effectively balanced.
Claims (8)
1. The air suction silencing cavity for the refrigeration compressor is characterized by comprising a shell, an air inlet pipe (3) and an air outlet pipe (4), wherein a plurality of partitioned silencing chambers are arranged in the shell, each silencing chamber comprises a first silencing chamber (5), a second silencing chamber (6) and a third silencing chamber (7), the air inlet pipe (3) penetrates through the first silencing chamber (5), an air outlet of the air inlet pipe (3) extends into the second silencing chamber (6), expansion holes (11) are formed in the air inlet pipe (3) positioned in the first silencing chamber (5), the second silencing chamber (6) and the third silencing chamber (7) are communicated through a communicating device (10), and the air outlet of the communicating device (10) is communicated with the air outlet pipe (4).
2. The suction muffling chamber for refrigeration compressors according to claim 1, characterized in that said first (5), second (6) and third (7) muffling chambers have a volumetric ratio ranging from 1 to 1.5: 2-2.5: 1.
3. -the suction silencing chamber for refrigeration compressors according to claim 2, characterized in that said first (5), second (6) and third (7) silencing chambers have a volume ratio of 1.25: 2.25: 1.
4. the suction muffler chamber for a refrigeration compressor according to claim 1, characterized in that the connector (10) is a Z-shaped tube comprising a long vertical tube section (101), a horizontal tube section (102) and a short vertical tube section (103) connected in sequence, the long vertical tube section (101) and the horizontal tube section (102) and the short vertical tube section (103) having an arc-shaped transition therebetween.
5. The suction muffling chamber for refrigeration compressors according to claim 4, wherein said short vertical tubular section (103) is disposed opposite to the air inlet of said air outlet tube (4), and the slit gap between said short vertical tubular section (103) and said air outlet tube (4) is 0.5-2.5 mm.
6. The suction muffling chamber for a refrigeration compressor according to claim 4, wherein the short vertical pipe section (103) is directly connected to the outlet pipe (4), and a through hole is formed at the connecting portion of the short vertical pipe section (103) and the outlet pipe (4), and the diameter of the through hole is 2.5-6 mm.
7. The suction muffling chamber for refrigeration compressors according to claim 1, characterized in that a plurality of baffles are provided inside said shell, said baffles comprising a horizontal baffle (8) and a vertical baffle (9) perpendicular to each other, said horizontal baffle (8) separating said shell into a third muffling chamber (7) and a lower muffling chamber, said lower muffling chamber being provided with a vertical baffle (9), said vertical baffle (9) separating said lower muffling chamber into a first muffling chamber (5) and a second muffling chamber (6).
8. The suction muffler chamber for a refrigerating compressor according to any one of claims 1 to 7, wherein oil leakage holes (12) are formed in the first muffler chamber (5), the second muffler chamber (6) and the third muffler chamber (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021054138.7U CN212803502U (en) | 2020-06-10 | 2020-06-10 | Air suction silencing cavity for refrigeration compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021054138.7U CN212803502U (en) | 2020-06-10 | 2020-06-10 | Air suction silencing cavity for refrigeration compressor |
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| CN212803502U true CN212803502U (en) | 2021-03-26 |
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| CN202021054138.7U Active CN212803502U (en) | 2020-06-10 | 2020-06-10 | Air suction silencing cavity for refrigeration compressor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901453A (en) * | 2021-01-29 | 2021-06-04 | 青岛万宝压缩机有限公司 | Five-cavity air suction silencer of compressor and compressor |
| US20210215146A1 (en) * | 2018-08-24 | 2021-07-15 | Gree Green Refrigeration Technology Center Co., Ltd. Of Zhuhai | Muffler, compressor assembly, and refrigerator |
| CN113217341A (en) * | 2021-06-07 | 2021-08-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Silencing structure, compressor and refrigerator with compressor |
| CN113236533A (en) * | 2021-05-18 | 2021-08-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Suction muffler, compressor and refrigerator |
| CN114673648A (en) * | 2022-04-11 | 2022-06-28 | 芜湖欧宝机电有限公司 | Compressor silencer and manufacturing process thereof |
| WO2024046487A1 (en) * | 2022-08-31 | 2024-03-07 | 安徽美芝制冷设备有限公司 | Suction muffler, compressor, and electrical device |
-
2020
- 2020-06-10 CN CN202021054138.7U patent/CN212803502U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210215146A1 (en) * | 2018-08-24 | 2021-07-15 | Gree Green Refrigeration Technology Center Co., Ltd. Of Zhuhai | Muffler, compressor assembly, and refrigerator |
| US11732623B2 (en) * | 2018-08-24 | 2023-08-22 | Gree Green Refrigeration Technology Center Co., Ltd. Of Zhuhai | Muffler, compressor assembly, and refrigerator |
| CN112901453A (en) * | 2021-01-29 | 2021-06-04 | 青岛万宝压缩机有限公司 | Five-cavity air suction silencer of compressor and compressor |
| CN113236533A (en) * | 2021-05-18 | 2021-08-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Suction muffler, compressor and refrigerator |
| CN113217341A (en) * | 2021-06-07 | 2021-08-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Silencing structure, compressor and refrigerator with compressor |
| CN113217341B (en) * | 2021-06-07 | 2024-03-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Sound deadening structure, compressor and refrigerator with same |
| CN114673648A (en) * | 2022-04-11 | 2022-06-28 | 芜湖欧宝机电有限公司 | Compressor silencer and manufacturing process thereof |
| CN114673648B (en) * | 2022-04-11 | 2023-11-14 | 芜湖欧宝机电有限公司 | Compressor muffler and manufacturing process thereof |
| WO2024046487A1 (en) * | 2022-08-31 | 2024-03-07 | 安徽美芝制冷设备有限公司 | Suction muffler, compressor, and electrical device |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210702 Address after: No.6, East Jinshan Avenue, Huangshi economic and Technological Development Zone, Huangshi City, Hubei Province Patentee after: Huangshi Dongbei Compressor Co.,Ltd. Address before: 435003 No.6, East Jinshan Avenue, Huangshi economic and Technological Development Zone, Hubei Province Patentee before: Huangshi Dongbei Electrical Appliance Co.,Ltd. |