CN102384571A - Silencing structure of air-conditioning compressor - Google Patents
Silencing structure of air-conditioning compressor Download PDFInfo
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- CN102384571A CN102384571A CN2011103043306A CN201110304330A CN102384571A CN 102384571 A CN102384571 A CN 102384571A CN 2011103043306 A CN2011103043306 A CN 2011103043306A CN 201110304330 A CN201110304330 A CN 201110304330A CN 102384571 A CN102384571 A CN 102384571A
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- air conditioner
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Abstract
The invention discloses a silencing structure of an air-conditioning compressor. The silencing structure comprises a sound insulating pad of the air compressor, wherein the sound insulating pad of the air compressor is composed of three layers of materials in a combined mode, wherein the materials comprise a fiber layer, a rubber sheet layer and a silencing wedge layer, wherein the rubber sheet layer is arranged between the fiber layer and the silencing wedge layer. According to the invention, through adding the silencing wedge layer for the silencing wedge layer, the sound absorption capability of multi-frequency noise given by the air-conditioning compressor by the sound insulating pad can be strengthened, and the sound insulation effect of the air-conditioning compressor is optimized greatly.
Description
Technical field
The present invention relates to refrigeration technology field, more particularly, relate to a kind of compressor of air conditioner noise elimination structure.
Background technology
Along with people's improves constantly the requirement of quality of the life, and the noise of air-conditioning more and more receives consumer's attention, is a big Consideration of choosing air-conditioning.
The noise of air-conditioner outdoor unit mainly comes from compressor and condenser fan, and wherein, the acoustical power of compressor is far longer than the acoustical power of condenser fan, and condenser fan can reduce noise through the means of optimizing fan vane type.So compressor is maximum noise source, be the most important thing of whole air-conditioner outdoor unit noise control to the noise countermeasure of compressor.
Present air-conditioner outdoor unit noise elimination technique mainly is through on compressor of air conditioner, increasing the mode of Sound-proof material.The sound insulation silk floss mainly is wrapped on the compressor fuselage, stops the skin ripple to be broadcast and passes the ripple propagation.
This mode is that the principle through the propagation that stops sound wave reduces noise, and referring to Fig. 1-2, Sound-proof material mainly is made up of two layers of material, and one deck is that 3, two layers on film is a felt 4.Felt 4 is close to through glue and is combined on the film 3, and then surrounds compressors through VELCRO 1 and magic button 2, reaches the function of acoustical insulation sound-deadening.In order to reach better noise elimination effect, production firm all is stained with the sound insulation silk floss to the compressor region of air-conditioner outdoor unit.The noise of power supply compressor and frequency-changeable compressor is the multiband noise, and Sound-proof material is because material is single, and the sound wave frequency range of absorption is narrower, to the sound inhibition scarce capacity of compressor, lower tone, cacophonize.Improvement is made by the manufacturer that has, and uses a kind of three layers Sound-proof material, and one deck is that 3, two layers on film is that 4, three layers on felt is that the composite damping sheet is for 5, four layers the felt 4 that is attached on the composite damping sheet, but this mode soundproof effect is also limited.
Summary of the invention
The object of the invention provides a kind of soundproof effect good compressor of air conditioner noise elimination structure in order to overcome the deficiency that above-mentioned prior art exists.
The technical scheme that the present invention adopts is: a kind of compressor of air conditioner noise elimination structure, comprise the compressor of air conditioner sound insulating pad, and constitute by trilaminate material is compound, comprise fibrage, rubber layer and noise elimination wedge layer, said rubber layer is between fibrage and noise elimination wedge layer.
Said fibrolaminar surface and compressor are fitted.
Said noise elimination wedge layer includes the absorbent treatment that multiple different sound absorption fibrous material makes.
Said fibrolaminar material is the sound absorption fibrous material.
Said noise elimination wedge layer by skeleton, be covered in the outer guard shield of processing with cloth of skeleton, be filled in intraskeletal inner core and constitute.
Said skeleton is the polyhedron of being processed by steel wire, and said inner core is made by the sound absorption fibrous material.
Compared with prior art, the present invention has the following advantages:
Through sound insulating pad being increased noise elimination wedge layer, can strengthen the sound absorbing power of the multifrequency noise that sound insulating pad sends compressor of air conditioner, optimized soundproof effect greatly to compressor of air conditioner.
Description of drawings
Fig. 1 is the structural representation of existing compressor Sound-proof material;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of compressor of air conditioner sound insulating pad of the present invention;
Fig. 4 is the Wedge structure sketch map of noise elimination wedge layer.
The parts that each label is represented in the accompanying drawing are following:
1 VELCRO, 2 magic buttons, 3 films, 4 felts, 5 composite damping sheets, 6 film layers, 7 fibrages, 8 noise elimination wedge layers, 9 skeletons, 10 guard shields, 11 inner cores.
The specific embodiment
We know that sound is the dilatational wave that vibrations produce.The propagation of sound is sound reflected refraction back and forth, and sound vibrations is converted into the vibrations of physics then, and this vibrations have damping characteristic.
According to the principle of acoustics, noise elimination will accomplish to block the energy transmission of high frequency and absorbing low frequency sound wave.Therefore, the present invention produces part in the noise source of air-conditioner outdoor unit, and the continuous extexine of sound insulation is done wedge.Utilize transition principle gradually to do porous fiber materials such as felts tapered or the wedgelike sound absorber.When sound wave when the tip is injected because the transition nature gradually of absorbent treatment, the acoustic impedance of material and the acoustic impedance of air can be mated preferably, make sound wave import sound absorber (felt or other fiber sound material) into and are reached the purpose of noise elimination by efficient absorption.Referring to Fig. 3-4; Compressor of air conditioner sound insulating pad of the present invention comprises film layers 6, fibrage 7, noise elimination wedge layer 8, and film layers 6 is clipped between fibrage 7 and the noise elimination wedge layer 8; The material of fibrage 7 is the porous sound absorption fibrous material for the sound absorption fibrous material in the noise elimination wedge layer.
During installation, fibrage 7 is fitted with compressor, and noise elimination wedge layer 8 wraps up compressor in the outside.
Compressor starts operation from sucking the refrigerant gas of low-temp low-pressure, after driving piston it is compressed through motor rotation, is discharged the refrigerant liquid of HTHP to blast pipe, during bad shocking, send noise.Sound is reflected refraction back and forth in the air, and sound vibrations is converted into the vibrations of physics, and this vibrations have damping characteristic.
Compressor of air conditioner sound insulation of the present invention pads and is a kind of resistive muffler, is fixed on the sound absorption fibrous material on the passage of sound.When sound wave got into sound insulating pad, a part of acoustic energy rubbed in the hole of sound-absorbing material and changes into thermal dissipation and fall, and the sound wave through muffler is weakened.
Be distributed with a plurality of wedges on the noise elimination wedge layer.The structure of wedge is to process the skeleton 9 of definite shape and size with steel wire; The outside puts the guard shield 10 that covering materials such as glass cloth, plastic window screening make; The inside dress is the inner core 11 of filler with the porous deadener, like blanket of glass wool, glass fibre, mineral wool, foamed plastics etc.To base portion, acoustic impedance is the characteristic impedance from the air impedance that progressively carries out the transition to porous material, thereby has realized good impedance matching, and incident acoustic energy is absorbed efficiently from the tip of wedge.Noise elimination wedge layer utilizes gradually changing of special impedance, by the characteristic impedance of wedge end face characteristic impedance near air, progressively carries out the transition to the characteristic impedance near sound-absorbing material, thereby reaches the highest sound absorption effect.The acoustic characteristic of wedge sound pressure reflection coefficient commonly used representes that reflectance factor is 0.1 o'clock (acoustic absorptivity is 0.99) pairing low-limit frequency, is called cut-off frequency, and it depends primarily on the unit weight of wedge and the length of tip.Wedge absorber is to utilize gradually changing of special impedance, by the characteristic impedance of wedge end face characteristic impedance near air, progressively carries out the transition to the characteristic impedance near sound-absorbing material, thereby reaches the highest sound absorption effect, and its average sound absorption coefficient can reach 1.0.Wedge length does not have fixed value, and the longer the better, and wedge low frequency absorption performance is good, the about 68.8～86Hz of its cut-off frequency.
Sound insulating pad of the present invention is wrapped on the compressor, and noise is outwards propagated from compressor, through fibrage, film layers and noise elimination wedge layer, decays rapidly when sound wave passes different media.There is certain space in the shell of noise elimination wedge layer and air-conditioner outdoor unit casing, is about 0.03～0.2m.Form one section air layer, improved sound absorbing capabilities.When air layer thickness was 1/4 wavelength, acoustic absorptivity was maximum.Simultaneously, incident acoustic wave penetrable noise elimination wedge layer or through refraction and reflection noise elimination wedge layer is repeatedly absorbed sound to wedge behind with casing through diffraction around the air-conditioner casing.
Claims (5)
1. compressor of air conditioner noise elimination structure; It is characterized in that: comprise the compressor of air conditioner sound insulating pad; Said compressor of air conditioner sound insulating pad constitutes by trilaminate material is compound, comprises fibrage, rubber layer and noise elimination wedge layer, and said rubber layer is between fibrage and noise elimination wedge layer.
2. a kind of compressor of air conditioner noise elimination structure according to claim 1 is characterized in that: said noise elimination wedge layer includes the absorbent treatment that multiple different sound absorption fibrous material makes.
3. a kind of compressor of air conditioner noise elimination structure according to claim 1 is characterized in that: said fibrolaminar material is the sound absorption fibrous material.
4. a kind of compressor of air conditioner noise elimination structure according to claim 3 is characterized in that: said noise elimination wedge layer by skeleton, be covered in the outer guard shield of processing with cloth of skeleton, be filled in intraskeletal inner core and constitute.
5. a kind of compressor of air conditioner noise elimination structure according to claim 4 is characterized in that: said skeleton is the polyhedron of being processed by steel wire, and said inner core is made by the sound absorption fibrous material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103043306A CN102384571A (en) | 2011-09-29 | 2011-09-29 | Silencing structure of air-conditioning compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103043306A CN102384571A (en) | 2011-09-29 | 2011-09-29 | Silencing structure of air-conditioning compressor |
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| Publication Number | Publication Date |
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| CN102384571A true CN102384571A (en) | 2012-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103043306A Pending CN102384571A (en) | 2011-09-29 | 2011-09-29 | Silencing structure of air-conditioning compressor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442275A (en) * | 2014-09-26 | 2016-03-30 | 苏州三星电子有限公司 | Noise-reducing assembly and washing machine |
| CN106287982A (en) * | 2016-09-19 | 2017-01-04 | 珠海格力电器股份有限公司 | Bottom shell structure of indoor unit, indoor unit and method for improving noise of indoor unit |
| CN106558262A (en) * | 2015-09-24 | 2017-04-05 | 北京卫星环境工程研究所 | Suction wave apparatus with high temperature-low temperature analog capability |
| CN107314524A (en) * | 2017-07-26 | 2017-11-03 | 广东美的制冷设备有限公司 | Sound-proof material and preparation method thereof, sound-insulating member and air-conditioning |
| CN112172265A (en) * | 2020-09-02 | 2021-01-05 | 南京理工大学 | A buffer board for amortization fort |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233956Y (en) * | 1995-09-25 | 1996-08-28 | 王法源 | High-effect sound-absorbing body |
| JPH10140702A (en) * | 1996-11-14 | 1998-05-26 | Sekisui Chem Co Ltd | Vibration-damping sound insulating material and floor structure |
| CN2456095Y (en) * | 2000-12-28 | 2001-10-24 | 宜兴市四通家电配套厂 | Noiseless air conditioner and noise absorbing pad |
| CN1414317A (en) * | 2001-10-05 | 2003-04-30 | Lg电子株式会社 | Noise reducing structure for outdoor unit of large air conditioner |
| CN2680754Y (en) * | 2004-03-02 | 2005-02-23 | 北京声望声电技术有限公司 | Wedge absorber |
-
2011
- 2011-09-29 CN CN2011103043306A patent/CN102384571A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233956Y (en) * | 1995-09-25 | 1996-08-28 | 王法源 | High-effect sound-absorbing body |
| JPH10140702A (en) * | 1996-11-14 | 1998-05-26 | Sekisui Chem Co Ltd | Vibration-damping sound insulating material and floor structure |
| CN2456095Y (en) * | 2000-12-28 | 2001-10-24 | 宜兴市四通家电配套厂 | Noiseless air conditioner and noise absorbing pad |
| CN1414317A (en) * | 2001-10-05 | 2003-04-30 | Lg电子株式会社 | Noise reducing structure for outdoor unit of large air conditioner |
| CN2680754Y (en) * | 2004-03-02 | 2005-02-23 | 北京声望声电技术有限公司 | Wedge absorber |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442275A (en) * | 2014-09-26 | 2016-03-30 | 苏州三星电子有限公司 | Noise-reducing assembly and washing machine |
| CN106558262A (en) * | 2015-09-24 | 2017-04-05 | 北京卫星环境工程研究所 | Suction wave apparatus with high temperature-low temperature analog capability |
| CN106287982A (en) * | 2016-09-19 | 2017-01-04 | 珠海格力电器股份有限公司 | Bottom shell structure of indoor unit, indoor unit and method for improving noise of indoor unit |
| CN106287982B (en) * | 2016-09-19 | 2018-09-07 | 珠海格力电器股份有限公司 | Bottom shell structure of indoor unit, indoor unit and method for improving noise of indoor unit |
| CN107314524A (en) * | 2017-07-26 | 2017-11-03 | 广东美的制冷设备有限公司 | Sound-proof material and preparation method thereof, sound-insulating member and air-conditioning |
| CN112172265A (en) * | 2020-09-02 | 2021-01-05 | 南京理工大学 | A buffer board for amortization fort |
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Application publication date: 20120321 |