CN106401913B - A kind of cylinder noise elimination structure, compressor and cylinder sound reduction method - Google Patents
A kind of cylinder noise elimination structure, compressor and cylinder sound reduction method Download PDFInfo
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- CN106401913B CN106401913B CN201611070081.8A CN201611070081A CN106401913B CN 106401913 B CN106401913 B CN 106401913B CN 201611070081 A CN201611070081 A CN 201611070081A CN 106401913 B CN106401913 B CN 106401913B
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- Prior art keywords
- noise reduction
- cavity
- cylinder
- reduction cavity
- noise
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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
-
- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
Abstract
The present invention relates to a kind of compressor noise-reduction technical field more particularly to cylinder noise elimination structure, compressor and cylinder sound reduction methods.A kind of cylinder noise elimination structure, including：The introduction channel that is arranged on cylinder block and the noise reduction cavity for being connected to introduction channel one end, the volume block that can be slided along noise reduction cavity is provided in the noise reduction cavity, at least when by pressure at expulsion, noise reduction cavity is divided into mutual disconnected epicoele and cavity of resorption by the volume block, and the volume of the epicoele and cavity of resorption moves up and down and changes with volume block.Additionally provide a kind of compressor and a kind of cylinder sound reduction method.Setting by the volume block that can be slided along noise reduction cavity, at least when by pressure at expulsion, noise reduction cavity is divided into mutual disconnected epicoele and cavity of resorption by the volume block, and the volume of the epicoele and cavity of resorption moves up and down and changes with volume block.It realizes same cylinder and effectively eliminates the different same state of coolant media/different conditions noises.
Description
Technical field
The present invention relates to a kind of compressor noise-reduction technical field more particularly to cylinder noise elimination structure, compressor and cylinders to disappear
Method for acoustic.
Background technology
Compressor (compressor) is a kind of driven fluid machinery that low-pressure gas is promoted to high pressure gas, is
The heart of refrigeration system.It from air intake duct suck low-temp low-pressure refrigerant gas, by motor operate band piston to its into
Row compression after, to exhaust pipe be discharged high temperature and pressure refrigerant gas, provide power for refrigeration cycle, to realize compress → it is cold
The refrigeration cycle of solidifying (heat release) → expansion → evaporation (heat absorption).
The noise that the compressor of refrigeration equipment generates at runtime is the main noise of refrigeration equipment, wherein compressor noise
Mainly there are gas noise, mechanicalness noise and electromagnetic noise etc. in source.Common compressor noise mode of eliminating is to pass through at present
It designs muffler and noise reduction cavity 3 ' carries out.As shown in Figure 1, noise reduction cavity configuration is by 3 ' group of an introduction channel 2 ' and noise reduction cavity
At a substantially resonance sound-absorbing structure.Gas in introduction channel 2 ' makees the reciprocal of similar piston under pressure oscillation effect
Movement, and the gas in noise reduction cavity 3 ' is similar to spring, friction when due to Gas Vibration and damping action, makes part acoustic energy
It is converted into thermal energy consumption to dissipate, corresponding pressure oscillation becomes more gentle, and pneumatic noise decreases.Since the velocity of sound is in different Jie
Spread speed is different under matter, changes refrigerant in compressor, cylinder need to correspond to the more money noise reduction cavity configurations of design, lead to cylinder
Type is various, and slow-witted material increases, and is unfavorable for company cost control.
Invention content
It is an object of the invention to proposing a kind of cylinder noise elimination structure, being set by the volume block that can be slided along noise reduction cavity
Set, at least when by pressure at expulsion, noise reduction cavity is divided into mutual disconnected epicoele and cavity of resorption by the volume block, it is described on
The volume of chamber and cavity of resorption moves up and down and changes with volume block.The prior art is solved since the velocity of sound is propagated under different medium
Speed is different, changes refrigerant in compressor, cylinder need to correspond to the more money noise reduction cavity configurations of design, cause cylinder type numerous
More, slow-witted material increases, and is unfavorable for the problem of company cost controls.
For this purpose, the present invention uses following technical scheme：
A kind of cylinder sound reduction method is eliminated by the noise reduction cavity of adjustable volume size because refrigerant difference has difference altogether
The noise for sound absorption frequency of shaking.
As one of the preferred embodiments of the present invention, the noise reduction cavity can be glided by what is set within it along thereon
Dynamic volume block adjusts its volume, and noise reduction cavity is divided into two points of chambers by the volume block of mute state, at least by
When pressure at expulsion, divide chamber not to be connected to described in two, the volume of chamber is divided to be slided and respective change with volume block described in two.
A kind of cylinder noise elimination structure, including：The introduction channel that is arranged on cylinder block and it is connected to introduction channel one
The noise reduction cavity at end is provided with the volume block that can be slided along noise reduction cavity in the noise reduction cavity, at least by pressure at expulsion
When, noise reduction cavity is divided into mutual disconnected epicoele and cavity of resorption by the volume block, and the volume of the epicoele and cavity of resorption is with volume
Moving up and down for block and change.
As one of the preferred embodiments of the present invention, the volume block include at least in gas shock with noise reduction cavity
The flexible body that is mutually tightly connected of inner wall and in the connector for pushing flexible body to be moved up and down along noise reduction cavity, the flexible body will
Noise reduction cavity is divided into disconnected epicoele and cavity of resorption.
As one of the preferred embodiments of the present invention, the flexible body include the flexible bottom surface being connected with connector and
The flexible sidewall extended upward from flexible bottom surface, it is described flexibility bottom surface and flexible sidewall junction open up it is fluted, it is described
Flexible sidewall is close under gas shock with the side wall of the noise reduction cavity, to prevent air-flow from pouring cavity of resorption from epicoele.
As one of the preferred embodiments of the present invention, multiple openings are also uniformly provided on the flexible sidewall, it is described
The length of opening is less than the height of flexible sidewall.
As one of the preferred embodiments of the present invention, the connector is connected through a screw thread or described with noise reduction cavity
Connector slidable connection positions on noise reduction cavity and by locating piece, and the connector is adjusted by manual or driving device
It is in noise reduction sky intracavitary locations.
As one of the preferred embodiments of the present invention, the connector is internally provided with permanent magnet, the noise reduction cavity
Bottom be provided with the variable electromagnet of magnetic pole, the volume block is moved up and down in the effect of permanent magnet and electromagnet.
As one of the preferred embodiments of the present invention, the noise reduction cavity is stepped hole, and the stepped hole includes being connected
Logical upper layer stepped hole and lower layer's stepped hole, at least partly described connector are located in lower layer's stepped hole, the flexible body
In the stepped hole of upper layer.
A kind of compressor has cylinder, the cylinder noise elimination structure is provided on the cylinder body of the cylinder.
Advantageous effect：Setting by the volume block that can be slided along noise reduction cavity, at least when by pressure at expulsion, institute
It states volume block and noise reduction cavity is divided into mutual disconnected epicoele and cavity of resorption, the volume of the epicoele and cavity of resorption is with the upper of volume block
Lower movement and change.It realizes same cylinder and effectively eliminates the different same state of coolant media/different conditions noises, largely reduce
Noise reduction cavity cylinder type improves generalization, reduces company's production cost, improves company's benefit.
Description of the drawings
Fig. 1 is the structural schematic diagram of the noise reduction cavity configuration of the prior art；
Fig. 2 is the front view for the cylinder noise elimination structure that the embodiment of the present invention 1 provides；
Fig. 3 is the structural schematic diagram for the volume block that the embodiment of the present invention 1 supplies；
Fig. 4 is the installation diagram for the cylinder noise elimination structure that the embodiment of the present invention 1 provides；
Fig. 5 is the noise elimination status diagram for the cylinder noise elimination structure that the embodiment of the present invention 1 provides；
Fig. 6 is the sectional view for the cylinder noise elimination structure that the embodiment of the present invention 3 provides.
In figure：
1, cylinder body；2, introduction channel；3, noise reduction cavity；4, volume block；31, upper layer stepped hole；32, lower layer's stepped hole；33,
Electromagnet；41, flexible body；42, connector；411, flexible bottom surface；412, flexible sidewall；413, groove；414, it is open；421, spiral shell
Line；422, permanent magnet；423, portion is screwed；424, slot is screwed；1 ', cylinder body；2 ', introduction channel；3 ', noise reduction cavity.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
Embodiment 1
A kind of cylinder noise elimination structure, as shown in Figure 2-5, including：The introduction channel 2 being arranged on cylinder block 1 and company
It is connected on the noise reduction cavity 3 of 2 one end of introduction channel, the volume block 4 that can be slided along noise reduction cavity 3 is provided in the noise reduction cavity 3,
At least when by pressure at expulsion, noise reduction cavity 3 is divided into mutual disconnected epicoele and cavity of resorption by the volume block 4, it is described on
The volume of chamber and cavity of resorption moves up and down and changes with volume block 4.The volume block 4 includes at least in gas shock and noise reduction
The flexible body 41 that the inner wall of cavity 3 is mutually tightly connected and the connector 42 moved up and down along noise reduction cavity 3 in promotion flexible body 41,
The flexible body 41 divides noise reduction cavity 3 for disconnected epicoele and cavity of resorption.The noise reduction cavity 3 is stepped hole, the ladder
Hole includes the upper layer stepped hole 31 being connected and lower layer's stepped hole 32, and at least partly described connector 42 is located at lower layer's ladder
In hole 32, the flexible body 41 is located in upper layer stepped hole 31.The sectional area of the upper layer stepped hole 31 is more than lower layer's stepped hole
32 sectional area.
The noise reduction cavity structure of the prior art is as shown in Figure 1, the resonance sound-absorbing that introduction channel 2 ' and noise reduction cavity 3 ' are formed
Structure, resonance sound-absorbing frequency areIn formula, by taking the section of noise reduction cavity 3 ' is round as an example, c is that sound wave exists
Propagation speed；V is the cavity volume V=π d of noise reduction cavity 3 '2h；G is conductivity of the sound wave in different medium；In formula, S0--- the pore-throat sectional area of noise reduction cavity 3 '；D --- the hole diameter of noise reduction cavity 3 '；
The aperture neck length of t --- noise reduction cavity 3 '.Since spread speed c is different under different medium for the velocity of sound, refrigerant is changed in compressor
In the case of, if the noise reduction cavity 3 ' of cylinder is designed to the noise reduction vessel of different size, cause cylinder type various.Certainly, disappear
The section of sound cavity can also be other shapes, and volume can be according to existing volume formula proving.
Technical scheme of the present invention adjusts 3 vessel of noise reduction cavity by volume block 4.Sound wave passes under different refrigerant states
It is different to broadcast speed c, by formulaVessel volume V is changed, it can be achieved that eliminating the same suction under different refrigerant states
Acoustic frequency or different sound absorption frequency fr.
When eliminating same sound absorption frequency, pass through formulaIn the hole diameter d of noise reduction cavity
Under fixing situation, G1=G, c ≠ c1, by formula, V ≠ V1 can reach sound absorption frequency phase under different medium by adjusting hole depth
Same purpose.Different sound absorption frequencies are eliminated, directly design transfiguration size using sound absorption frequency formula.
Setting by the volume block 4 that can be slided along noise reduction cavity 3, at least when by pressure at expulsion, the volume
Noise reduction cavity 3 is divided into mutual disconnected epicoele and cavity of resorption by block 4, the volume of the epicoele and cavity of resorption with volume block 4 up and down
It moves and changes.It realizes same cylinder and effectively eliminates the different same state of coolant media/different conditions noises, largely reduce and disappear
Sound cavity cylinder type improves generalization, reduces company's production cost, improves company's benefit.The noise reduction cavity 3 or
Common vessel, cylindrical hole, square hole or other conventional vessels, no longer illustrate one by one.
When it is implemented, the shape of the cross section of the flexible body 41 and the cross section of the noise reduction cavity 3 can be consistent
Can not also be consistent, it is described soft when the cross section of the flexible body 41 is consistent with the shape of cross section of the noise reduction cavity 3
Property body 41 and noise reduction cavity 3 be interference fit so that the side wall of the flexible body 41 and noise reduction cavity 3, which is formed, to be tightly connected, and
It can be slided under external force along noise reduction cavity 3, the connector 42 is connect with noise reduction cavity 3 by screw thread 421, the connection
Body 42 can adjust its position in noise reduction cavity 3 by screwing manually.For the ease of manual setting, it is additionally provided on the bottom surface
Screw portion 423, it is described screw be further opened in portion 423 facilitate screwing tool clamping screw slot 424, reduce and screw difficulty,
Improve the efficiency of the adjusting of volume block 4.
When the cross section of the flexible body 41 and the inconsistent shape of the cross section of the noise reduction cavity 3, as shown in figure 3,
The flexible body 41 includes the flexible bottom surface 411 being connected with connector 42 and the flexibility that flexibility bottom surface 411 extends upward certainly
The junction of side wall 412, the flexibility bottom surface 411 and flexible sidewall 412 opens up fluted 413, and the flexible sidewall 412 is in gas
Stream impact is lower to be close to the side wall of the noise reduction cavity 3, to prevent air-flow from pouring cavity of resorption from epicoele.412 He of the flexible sidewall
The setting of groove 413 so that during cylinder exhaust, intracavitary high pressure gas acts on flexible sidewall 412, and flexible body develops into rotation
Turn pair, flexible sidewall 412 resists the side wall of the upper layer stepped hole 31 of noise reduction cavity 3, effectively seals epicoele, under avoiding gas from flowing into
Chamber influences the volume of the epicoele for noise reduction of noise reduction cavity 3.The structure of flexible sidewall 412 and groove 413, relative to working as
State flexible body 41 cross section it is consistent with the shape of cross section of the noise reduction cavity 3 when, the flexible body 41 and noise reduction cavity 3
For the structure of interference fit, reduce the resistance that volume block 4 slides up and down, while because flexible sidewall 412 is in intracavitary high pressure gas
The external and internal pressure that epicoele and cavity of resorption are formed under effect is poor so that flexible sidewall 412, which securely fixes, to be connected on the side wall of epicoele, is protected
It has demonstrate,proved that the position under impacting with high pressure of volume block 4 is constant, has improved the ability for eliminating noise.
Multiple openings 414 are also uniformly provided on the flexible sidewall 412, the length of the opening 414 is less than flexible sides
The height of wall 412.The structure of opening is set on flexible sidewall 412, flexible sidewall 412 can preferably be allowed to be acted in pressure at expulsion
Lower opening, reaches better seal effect, prevents gas from flowing into cavity of resorption.Theoretically, if gas flow into cavity of resorption can also, only
Precision controlling is difficult, and the volume variation range of the epicoele in noise reduction cavity 3 for noise reduction is smaller, and volume variation is only just
Connector 42 enters the volume variation of lower layer's stepped hole 32.
The connector 42 is connect with noise reduction cavity 3 by screw thread 421, and the outside of the connector 42 offers outer spiral shell
Line offers the internal thread to match with external screw thread on the madial wall of lower layer's stepped hole 32, and the connector 42 can pass through
It screws manually and adjusts its position in noise reduction cavity 3.For the ease of manual setting, the portion of screwing 423 is additionally provided on the bottom surface,
It is described screw be further opened in portion 423 facilitate screwing tool clamping screw slot 424, reduce and screw difficulty, improve volume
The efficiency that block 4 is adjusted.Or the connector 42 adjusts its position in noise reduction cavity 3, the driving dress by driving device
Set connection control system.
Embodiment 2
As different from Example 1, the connector slidable connection positions on noise reduction cavity and by locating piece, institute
It is pin or fixing screws to state locating piece, and the connector can adjust it in noise reduction sky intracavitary locations by screwing manually.Or
Connector described in person adjusts it in noise reduction sky intracavitary locations by driving device, and the driving device connects control system.
Embodiment 3
As shown in fig. 6, unlike embodiment 1 and embodiment 2, the connector 42 is internally provided with permanent magnet 422,
The bottom of the noise reduction cavity 3 is provided with the variable electromagnet 33 of magnetic pole, and the volume block 4 is in permanent magnet 422 and electromagnet 33
Effect move up and down.The electromagnet 33 is connected with the control circuit for controlling its magnetic pole and electromagnetism size variation, the control
Circuit connection control system, relative to embodiment 1 and embodiment 2, structure is more simple, and control is more accurate.
Embodiment 4
The present invention also provides a kind of compressors, have cylinder, and the cylinder is provided on the cylinder body of the cylinder and is disappeared
Acoustic form.
Embodiment 5
The present invention provides a kind of cylinder sound reduction methods, are eliminated because of refrigerant by the noise reduction cavity 3 of adjustable volume size
Difference has the noise of different resonance sound-absorbing frequencies.The noise reduction cavity 3 passes through being slided up and down along it of setting within it
Volume block 4 adjusts its volume, and noise reduction cavity 3 is divided into two points of chambers, is at least being arranged by the volume block 4 of mute state
When atmospheric pressure, divide chamber not to be connected to described in two, the volume of chamber is divided to be slided and respective change with volume block 4 described in two.
In conclusion by the setting for the volume block 4 that can be slided along noise reduction cavity 3, at least when by pressure at expulsion, institute
It states volume block 4 and noise reduction cavity 3 is divided into mutual disconnected epicoele and cavity of resorption, the volume of the epicoele and cavity of resorption is with volume block 4
Move up and down and change.It realizes same cylinder and effectively eliminates the different same state of coolant media/different conditions noises, largely
Noise reduction cavity cylinder type is reduced, generalization is improved, reduces company's production cost, improves company's benefit.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and it cannot be construed to limiting the scope of the invention in any way.Based on the explanation herein, the technology of this field
Personnel would not require any inventive effort the other specific implementation modes that can associate the present invention, these modes are fallen within
Within protection scope of the present invention.
Claims (5)
1. a kind of cylinder noise elimination structure, which is characterized in that including：It is arranged in cylinder block（1）On introduction channel（2）And even
It is connected on introduction channel（2）The noise reduction cavity of one end（3）, the noise reduction cavity（3）Inside being provided with can be along noise reduction cavity（3）Sliding
Volume block（4）, at least when by pressure at expulsion, the volume block（4）By noise reduction cavity（3）It is divided into mutual disconnected epicoele
And cavity of resorption, the volume of the epicoele and cavity of resorption is with volume block（4）Move up and down and change；
The volume block（4）Including at least in gas shock with noise reduction cavity（3）The flexible body that is mutually tightly connected of inner wall
（41）With push flexible body（41）Along noise reduction cavity（3）The connector moved up and down（42）, the flexible body（41）By noise reduction
Cavity（3）It is divided into disconnected epicoele and cavity of resorption；
The connector（42）With noise reduction cavity（3）Pass through screw thread（421）Connection or the connector（42）Slidable connection
In noise reduction cavity（3）It above and by locating piece positions, the connector（42）It is adjusted in noise reduction by manual or driving device
Cavity（3）Interior position；
Alternatively, the connector（42）It is internally provided with permanent magnet（422）, the noise reduction cavity（3）Bottom be provided with magnetic pole
Variable electromagnet, the volume block（4）In permanent magnet（422）And electromagnet（33）Effect move up and down；
The noise reduction cavity（3）For stepped hole, cylindrical hole or square hole.
2. cylinder noise elimination structure according to claim 1, which is characterized in that the flexible body（41）Including with connector
（42）The flexible bottom surface being connected（411）With certainly flexible bottom surface（411）The flexible sidewall extended upward（412）, the flexibility
Bottom surface（411）And flexible sidewall（412）Junction open up it is fluted（413）, the flexible sidewall（412）Under gas shock
With the noise reduction cavity（3）Side wall be close to, to prevent air-flow from pouring cavity of resorption from epicoele.
3. cylinder noise elimination structure according to claim 2, which is characterized in that the flexible sidewall（412）On also uniformly open
Equipped with multiple openings（414）, the opening（414）Length be less than flexible sidewall（412）Height.
4. according to claim 1-3 any one of them cylinder noise elimination structures, which is characterized in that the noise reduction cavity（3）For rank
When terraced hole, the stepped hole includes the upper layer stepped hole being connected（31）With lower layer's stepped hole（32）, at least partly described connection
Body（42）Positioned at lower layer's stepped hole（32）It is interior, the flexible body（41）Positioned at upper layer stepped hole（31）It is interior.
5. a kind of compressor, which is characterized in that have cylinder, the cylinder body of the cylinder（1）Upper setting is appointed just like claim 1-4
Cylinder noise elimination structure described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611070081.8A CN106401913B (en) | 2016-11-28 | 2016-11-28 | A kind of cylinder noise elimination structure, compressor and cylinder sound reduction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611070081.8A CN106401913B (en) | 2016-11-28 | 2016-11-28 | A kind of cylinder noise elimination structure, compressor and cylinder sound reduction method |
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| Publication Number | Publication Date |
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| CN106401913A CN106401913A (en) | 2017-02-15 |
| CN106401913B true CN106401913B (en) | 2018-11-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116182479A (en) * | 2021-11-26 | 2023-05-30 | 青岛海尔电冰箱有限公司 | Silencer and refrigerating and freezing device |
| CN115013120B (en) * | 2022-06-22 | 2023-07-14 | 广州美的华凌冰箱有限公司 | Muffler |
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| CN201916202U (en) * | 2010-12-22 | 2011-08-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor muffler device and compressor having same |
| CN103671114A (en) * | 2012-08-31 | 2014-03-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner |
| JP2015113808A (en) * | 2013-12-13 | 2015-06-22 | ダイキン工業株式会社 | Rotary compressor |
| CN105805017A (en) * | 2014-12-30 | 2016-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Air conditioning unit and compressor |
| CN206360858U (en) * | 2016-11-28 | 2017-07-28 | 珠海凌达压缩机有限公司 | A kind of cylinder noise elimination structure, compressor |
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2016
- 2016-11-28 CN CN201611070081.8A patent/CN106401913B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201916202U (en) * | 2010-12-22 | 2011-08-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor muffler device and compressor having same |
| CN103671114A (en) * | 2012-08-31 | 2014-03-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner |
| JP2015113808A (en) * | 2013-12-13 | 2015-06-22 | ダイキン工業株式会社 | Rotary compressor |
| CN105805017A (en) * | 2014-12-30 | 2016-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Air conditioning unit and compressor |
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