CN105442275B - A kind of noise reduction components and washing machine - Google Patents
A kind of noise reduction components and washing machine Download PDFInfo
- Publication number
- CN105442275B CN105442275B CN201410503259.8A CN201410503259A CN105442275B CN 105442275 B CN105442275 B CN 105442275B CN 201410503259 A CN201410503259 A CN 201410503259A CN 105442275 B CN105442275 B CN 105442275B
- Authority
- CN
- China
- Prior art keywords
- noise reduction
- reduction components
- thin plate
- foamed plastic
- plastic thin
- 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
Landscapes
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The embodiment of the invention discloses a kind of noise reduction components and washing machine, the noise reduction components, including viscoelastic damping sound-absorbing piece and foamed plastic thin plate, wherein, it is fixed on the inside of the foamed plastic thin plate on the outside of the viscoelastic damping sound-absorbing piece, multiple wedge absorbers is provided with the outside of the foamed plastic thin plate；The viscoelastic damping sound-absorbing piece is provided with the grid of multiple insertions, and the position corresponding to cavity that the foamed plastic thin plate surrounds with each grid is provided with the through hole for penetrating the foamed plastic thin plate.Noise reduction components in the present invention compared with prior art, reduce the generation of noise, so as to improve the noise quality of washing machine in terms of sound-absorbing and noise reduction two.
Description
Technical field
The present invention relates to washing machine technology field, more specifically to a kind of noise reduction components and washing machine.
Background technology
Noise pollution has seriously endangered the physical and mental health of consumer as one of current three big pollutions.With laundry
The development of machine product technology and the demand of human body, noise quality have become the key index of machine design.Washing machine
Noise be mainly derived from the vebrato and mechanicalness noise sent when washing of drum type washing machine, dewatering work, vebrato is washing machine
Under high speed dewatering, as caused by washings bias, suspension rod spring, cushion pad, balance ring etc.；Mechanicalness noise is by washing machine component
Caused by assembling or the influencing each other of inter-module.
At present, in order to improve the noise quality of washing machine, it will usually deadener felt is pasted in the case shell both sides of washing machine, by
It is inorganic fibers in the material of deadener felt, sound-absorbing is carried out using its porosity characteristic, when sound wave incident is to material surface,
Evoke the air vibration in micropore, due to the viscosity of air, the kinetic energy of air is converted into interior energy.But deadener felt due to
Self structure characteristic, only centering high frequency noise have higher acoustically effective, and washing machine noise focuses primarily upon low-frequency range, because
This, the sound absorption of deadener felt can not effectively embody.
In another scheme, damping block is attached in case shell both sides centre position, to reduce the amplitude effect of case shell midpoint.By
It is butyl rubber in the material of damping block, using its own weight and damping characteristic, reduces the vibration of case shell midpoint.But damp
Block is only capable of reducing the vibration of case shell, can not absorb the noise that built-in system radiates.
Therefore, the noise quality of washing machine how is improved, turns into those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
In view of this, first purpose of the invention is to provide a kind of noise reduction components, and making an uproar for washing machine is improved to realize
The purpose of timbre matter；Second object of the present invention is to provide a kind of washing machine.
To realize above-mentioned first purpose, the present invention provides following technical scheme：
A kind of noise reduction components, including viscoelastic damping sound-absorbing piece and foamed plastic thin plate, wherein, the foamed plastic thin plate
Inner side be fixed on the outside of the viscoelastic damping sound-absorbing piece, be provided with multiple sound absorptions on the outside of the foamed plastic thin plate
Wedge；The viscoelastic damping sound-absorbing piece is provided with the grid of multiple insertions, the foamed plastic thin plate and each grid
The position corresponding to cavity surrounded is provided with the through hole for penetrating the foamed plastic thin plate.
Preferably, in above-mentioned noise reduction components, helically line is distributed the axis of multiple wedge absorbers.
Preferably, in above-mentioned noise reduction components, the axis of each wedge absorber is outer with the foamed plastic thin plate
The surface of side is vertical.
Preferably, in above-mentioned noise reduction components, the distance between adjacent described wedge absorber is equal.
Preferably, in above-mentioned noise reduction components, the foamed plastic thin plate and the cavity institute that each grid surrounds are right
The position answered has a through hole.
Preferably, in above-mentioned noise reduction components, the grid includes two circumferential muscle being oppositely arranged and is oppositely arranged
Two radial ribs, the radial rib is perpendicular to the circumferential muscle.
Preferably, in above-mentioned noise reduction components, adjacent two grids share radial rib.
Preferably, in above-mentioned noise reduction components, the circumferential muscle of multiple grids seamlessly transits connected, and forms helical form
Structure.
Compared with prior art, foamed plastic thin plate is sound-absorbing material in itself to noise reduction components in the present invention, and inside contains
There are some micropores, and be interconnected, there is certain sound absorption, and the wedge absorber being fabricated to using the material, according to cutting
The impedance transition mechanism principle that area changes from small to big, reduce due to acoustic impedance mutation and the reflection of caused sound wave, there is strong sound-absorbing to make
With；Further, since itself damping characteristic of viscoelastic material, and the sole mass of whole sound absorber, it is pasted onto case shell-side
Face can also be effectively reduced the vibration of case shell, so as to reduce the noise caused by case shell itself vibrates.Therefore, it is of the invention and existing
There is technology compared to the generation that noise is reduced in terms of sound-absorbing and noise reduction two, so as to improve the noise quality of washing machine.
Second object of the present invention is to provide a kind of washing machine, including noise reduction components and case shell, the noise reduction components are
Noise reduction components described in any of the above-described technical scheme, institute is fixed on the inside of the viscoelastic damping sound-absorbing piece in the noise reduction components
State on case shell.Because above-mentioned noise reduction components have the effect above, also possesses corresponding effect using the washing machine of above-mentioned noise reduction components
Fruit.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
A kind of configuration schematic diagram for noise reduction components that Fig. 1 is provided by the embodiment of the present invention；
The overlooking the structure diagram for the foamed plastic thin plate that Fig. 2 is provided by the embodiment of the present invention；
The cross section structure diagram for the foamed plastic thin plate part that Fig. 3 is provided by the embodiment of the present invention；
The overlooking the structure diagram for the viscoelastic damping sound-absorbing piece that Fig. 4 is provided by the embodiment of the present invention；
Wherein：1 it is foamed plastic thin plate, 11 be wedge absorber, 12 be through hole, 2 be viscoelastic damping sound-absorbing piece, 21 is grid
Lattice, 211 be circumferential muscle, 212 be radial rib.
Embodiment
First core of the invention is to disclose a kind of noise reduction components, to realize the purpose for the noise quality for improving washing machine；
Second core of the invention is to disclose a kind of washing machine.Hereinafter, embodiment is illustrated referring to the drawings.It is in addition, shown below
Embodiment not to the content of the invention described in claim rise any restriction effect.In addition, the structure represented by example below
Into full content be not limited to necessary to the solution as the invention described in claim.
As shown in Figures 1 to 4, the noise reduction components include viscoelastic damping sound-absorbing piece 2 and foamed plastic thin plate 1, wherein, hair
The inner side of bubble sheet plastic 1 is fixed on the outside of viscoelastic damping sound-absorbing piece 2, and the outside of foamed plastic thin plate 1 is provided with more
Individual wedge absorber 11；Viscoelastic damping sound-absorbing piece 2 is provided with the grid 21 of multiple insertions, foamed plastic thin plate 1 and each grid
Position corresponding to 21 cavitys surrounded is provided with the through hole 12 of insertion foamed plastic thin plate 1.
With reference to prior art, inventor considers to improve in terms of two to improve the noise quality of washing machine, sound-absorbing and
Noise reduction, wherein, realized in terms of sound-absorbing by changing material and structure, wherein foamed plastic thin plate 1, foamed plastic is thin
Plate 1 is sound-absorbing material in itself, and some micropores are contained in inside, and are interconnected, and has certain sound absorption, and utilizes the material
Expect the wedge absorber 11 that is fabricated to, due to the impedance transition mechanism principle that wedge absorber 11 changes from small to big according to sectional area, reduce by
In acoustic impedance mutation, caused sound wave reflects, and has strong sound absorption；And in terms of noise reduction, it is contemplated that the generation of washing machine noise
Mainly vebrato and mechanicalness noise, reach erasure effect by reducing the vibration of inner components in washing machine.Specifically,
Due to itself damping characteristic of viscoelastic material, and the sole mass of whole sound absorber, being pasted onto case shell-side face can also have
Effect ground reduces the vibration of case shell, so as to reduce the noise caused by case shell itself vibrates.In addition, the noise reduction components of said structure
After on washing machine, wedge absorber 11, grid 21 form cavity and rigid case shell form several be connected it is " conspicuous
Mu Huozi " resonant absorbers, and the resonant absorber is extremely effective to the noise of low-frequency range.Therefore, the present invention and prior art
Compared to the generation that noise is reduced in terms of sound-absorbing and noise reduction two, so as to improve the noise quality of washing machine.
In order to further improve the sound-absorbing effect of the noise reduction components, helically line is distributed the axis of multiple wedge absorbers 11.
The axis line track of wedge absorber 11 is helically linear, effectively increases the sound absorption face of the sound-absorbing material towards sound wave incident direction
Product, and avoid the directionality of the sound absorption of wedge absorber 11, you can to absorb the sound wave of all directions.
Wherein, in order to ensure directionality that wedge absorber 11 absorbs sound, the axis and foamed plastic of each wedge absorber 11 be thin
The surface in the outside of plate 1 is vertical.In addition, the distance between adjacent wedge absorber 11 can be designed to equidistantly, or no
Equidistantly.
It should be noted that a wedge absorber 11 can correspond to a grid 21, or the correspondence of multiple wedge absorbers 11
One grid 21, or the corresponding multiple grids 21 of a wedge absorber 11, grid 21 form cavity with corresponding wedge absorber 11.
In embodiments of the present invention using the corresponding grid 21 of a wedge absorber 11, wherein, foamed plastic thin plate 1 encloses with each grid 21
Into cavity corresponding to position there is a through hole 12.
Grid 21 includes two circumferential muscle 211 being oppositely arranged and two radial ribs 212 being oppositely arranged, radial rib 212
Perpendicular to circumferential muscle 211.Diametrically, two adjacent grids 21 share circumferential muscle 211, in the circumferential, adjacent two grid
Lattice 21 share radial rib 212.Wherein, the circumferential muscle 211 of multiple grids 21 seamlessly transits connected, and forms helicoidal structure.
The invention also discloses a kind of washing machine, including noise reduction components and case shell, noise reduction components are any of the above-described technical side
The noise reduction components of case, the inner side of the viscoelastic damping sound-absorbing piece 2 in noise reduction components are fixed on case shell.Due to above-mentioned noise reduction components
With the effect above, also possess corresponding effect using the washing machine of above-mentioned noise reduction components, do not repeat herein.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (9)
- A kind of 1. noise reduction components, it is characterised in that including viscoelastic damping sound-absorbing piece and foamed plastic thin plate, wherein, the hair It is fixed on the inside of bubble sheet plastic on the outside of the viscoelastic damping sound-absorbing piece, the outside of the foamed plastic thin plate is set There are multiple wedge absorbers；The viscoelastic damping sound-absorbing piece is provided with the grid of multiple insertions, the foamed plastic thin plate with it is every The position corresponding to cavity that the individual grid surrounds is provided with the through hole for penetrating the foamed plastic thin plate, the sound absorption point Split, the cavity of grid composition and rigid case shell form several Helmholz resonance sound absorbers being connected.
- 2. noise reduction components as claimed in claim 1, it is characterised in that helically line divides the axis of multiple wedge absorbers Cloth.
- 3. noise reduction components as claimed in claim 2, it is characterised in that the axis of each wedge absorber is moulded with the foaming Expect that the surface in the outside of thin plate is vertical.
- 4. noise reduction components as claimed in claim 3, it is characterised in that the distance between adjacent described wedge absorber is equal.
- 5. noise reduction components as claimed in claim 4, it is characterised in that the foamed plastic thin plate surrounds with each grid Cavity corresponding to position there is a through hole.
- 6. noise reduction components as claimed in claim 5, it is characterised in that the grid include two circumferential muscle being oppositely arranged and Two radial ribs being oppositely arranged, the radial rib is perpendicular to the circumferential muscle.
- 7. noise reduction components as claimed in claim 6, it is characterised in that two adjacent grids share radial rib.
- 8. noise reduction components as claimed in claim 7, it is characterised in that the circumferential muscle of multiple grids seamlessly transit it is connected, And form helicoidal structure.
- 9. a kind of washing machine, including noise reduction components and case shell, it is characterised in that the noise reduction components are to appoint in claim 1 to 8 Noise reduction components described in one, it is fixed on the case shell on the inside of the viscoelastic damping sound-absorbing piece in the noise reduction components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410503259.8A CN105442275B (en) | 2014-09-26 | 2014-09-26 | A kind of noise reduction components and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410503259.8A CN105442275B (en) | 2014-09-26 | 2014-09-26 | A kind of noise reduction components and washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105442275A CN105442275A (en) | 2016-03-30 |
| CN105442275B true CN105442275B (en) | 2018-03-02 |
Family
ID=55552879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410503259.8A Active CN105442275B (en) | 2014-09-26 | 2014-09-26 | A kind of noise reduction components and washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105442275B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108774852A (en) * | 2018-06-28 | 2018-11-09 | 池州市清溪信息技术服务有限公司 | A kind of washing machine that noise is small |
| CN112146186A (en) * | 2019-06-26 | 2020-12-29 | 士铖兴工程技术（江苏）有限公司 | Low-noise central air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1220440A (en) * | 1969-02-24 | 1971-01-27 | Oliver Clarence Eckel | Sound absorbing assembly with an integral cage |
| CN1479680A (en) * | 2001-06-19 | 2004-03-03 | 奥克伍德能源管理公司 | Composite energy absorber |
| DE102004025350A1 (en) * | 2004-05-19 | 2005-12-08 | Erich Klaus | Sound absorption device, has absorption units attached to carrier and adhesion strip attached to absorption units, is provided in detachable connection with carrier, where absorption unit has core made from absorbing material |
| CN101266786A (en) * | 2007-03-14 | 2008-09-17 | 中国船舶重工集团公司第七二五研究所 | A muffler for muffling water pool and its making method |
| CN203531166U (en) * | 2013-09-23 | 2014-04-09 | 华中科技大学 | Composite low-frequency sound barrier |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053982C (en) * | 1993-05-11 | 2000-06-28 | 王法源 | Sound absorption structure |
| KR101322038B1 (en) * | 2008-08-28 | 2013-10-25 | (주)엘지하우시스 | System for absorbing sound |
| CN102384571A (en) * | 2011-09-29 | 2012-03-21 | Tcl空调器（武汉）有限公司 | Silencing structure of air-conditioning compressor |
| CN103510342A (en) * | 2012-06-29 | 2014-01-15 | 海尔集团公司 | Washing machine |
| CN203546930U (en) * | 2013-10-23 | 2014-04-16 | 国家电网公司 | Double-face sound absorbing barrier |
-
2014
- 2014-09-26 CN CN201410503259.8A patent/CN105442275B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1220440A (en) * | 1969-02-24 | 1971-01-27 | Oliver Clarence Eckel | Sound absorbing assembly with an integral cage |
| CN1479680A (en) * | 2001-06-19 | 2004-03-03 | 奥克伍德能源管理公司 | Composite energy absorber |
| DE102004025350A1 (en) * | 2004-05-19 | 2005-12-08 | Erich Klaus | Sound absorption device, has absorption units attached to carrier and adhesion strip attached to absorption units, is provided in detachable connection with carrier, where absorption unit has core made from absorbing material |
| CN101266786A (en) * | 2007-03-14 | 2008-09-17 | 中国船舶重工集团公司第七二五研究所 | A muffler for muffling water pool and its making method |
| CN203531166U (en) * | 2013-09-23 | 2014-04-09 | 华中科技大学 | Composite low-frequency sound barrier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105442275A (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103347224B (en) | Reduce the acoustical cavity that microphone pickup wind is made an uproar | |
| CN105442275B (en) | A kind of noise reduction components and washing machine | |
| RU2534778C1 (en) | Sound absorber piece | |
| RU2547519C1 (en) | Kochetov's acoustic absorber of combined type | |
| CN203759596U (en) | Shock-absorption loudspeaker of laptop | |
| CN205502292U (en) | Syllable -dividing wall of making an uproar falls | |
| CN207828707U (en) | A kind of rail resonance sound-absorbing device | |
| CN110809204A (en) | Sound box damping structure | |
| CN208634305U (en) | A kind of denoising device of globoid cam high speed and precision divider | |
| CN206346327U (en) | The compound sound insulationg board of one kind damping | |
| CN204775988U (en) | Device of making an uproar falls in porous foamed plastic material | |
| CN201850471U (en) | Shear-type elastic sleeper composite vibration absorber | |
| CN209488750U (en) | A kind of speaker sound absorber | |
| CN213089134U (en) | Damping sleeve for damping and noise reducing of metal pipeline | |
| JP2008203542A (en) | Sound absorbing body | |
| CN209453972U (en) | A kind of shield and its cutting machine | |
| CN209370034U (en) | Pump assembly for water treatment device and water purification device with pump assembly | |
| CN209370033U (en) | Pump assembly for water treatment device and water purification device with pump assembly | |
| CN207235095U (en) | The diaphragm of loudspeaker with incorgruous decorative pattern | |
| CN210688683U (en) | Noise reduction air duct | |
| CN111312202B (en) | Sound-deadening equipment | |
| CN202261695U (en) | Horn shock absorber | |
| CN211058050U (en) | Sound insulation board for building construction external wall | |
| CN219644043U (en) | Concatemer stereo set damping device and stereo set | |
| CN102296550A (en) | Sound barrier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |