CN107676242A - Silencing means - Google Patents
Silencing means Download PDFInfo
- Publication number
- CN107676242A CN107676242A CN201610554045.2A CN201610554045A CN107676242A CN 107676242 A CN107676242 A CN 107676242A CN 201610554045 A CN201610554045 A CN 201610554045A CN 107676242 A CN107676242 A CN 107676242A
- Authority
- CN
- China
- Prior art keywords
- ring housing
- silencing means
- outer ring
- frequency
- inner ring
- 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.)
- Pending
Links
Classifications
-
- 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
- F04B39/0083—Pulsation and noise damping means using blow off silencers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- 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
- F04B39/0033—Pulsation and noise damping means with encapsulations
-
- 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
- F04B39/121—Casings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The present invention provides a kind of silencing means; it is used for frequency-changeable compressor noise reduction; the silencing means includes outer ring housing, inner ring housing, acoustic material and annular bottom plate; the outer ring housing and the inner ring housing may be contained within the annular bottom plate; the inner ring housing is located at the outer ring enclosure interior; the inner ring housing is wrapped in outside the frequency-changeable compressor; the acoustic material is filled between the outer ring housing and the inner ring housing, the acoustic material is at least mixed by PP GRANULES and polyethylene terephthalate particle.Silencing means provided by the invention employs carries out noise reduction by the acoustic material that PP GRANULES and polyethylene terephthalate particle mix to frequency-changeable compressor; frequency-changeable compressor is reduced in noise caused by the high speed rotation of each frequency range; its noise especially can be greatly reduced in some frequency ranges, noise caused by frequency-changeable compressor is reached criteria for noise.
Description
Technical field
The present invention relates to mechanical field, more particularly to a kind of silencing means.
Background technology
Frequency-changeable compressor easily produces noise at work, and different frequency-changeable compressors rotate at a high speed in different frequency range
When always more or less produce the higher situation of noise, also still can even in frequency-changeable compressor outer wrapping silencing cotton
There is the exceeded phenomenon of noise.
The content of the invention
It is an object of the invention to provide a kind of silencing means, is produced with reducing frequency-changeable compressor when high speed rotates
Noise, reach criteria for noise.
To reach above-mentioned technical purpose, the present invention provides a kind of silencing means, and it is used for frequency-changeable compressor noise reduction,
The silencing means includes outer ring housing, inner ring housing, acoustic material and annular bottom plate, the outer ring housing
It is may be contained within the inner ring housing on the annular bottom plate, the inner ring housing is located in the outer ring housing
Portion, the inner ring housing are wrapped in outside the frequency-changeable compressor, the outer ring housing and the inner ring housing it
Between be filled with the acoustic material, the acoustic material is at least by PP GRANULES and poly terephthalic acid second two
Alcohol ester particle mixes.
Further, the acoustic material is mixed by the raw material of following percents by volume：
PP GRANULES：50%-65%；Polyethylene terephthalate particle：35%-50%.
Further, the acoustic material is mixed by the raw material of following percents by volume：
PP GRANULES：65%；Polyethylene terephthalate particle：35%.
Further, the cross section of the inner ring housing is circle.
Further, the cross section of the outer ring housing is circle.
Further, the silencing means also includes top cover, and the top cover is covered on the outer ring housing.
Further, the making material of the inner ring housing and the outer ring housing is flexible material.
Further, the flexible material is paper.
Further, the silencing means also lashes band including at least one, and the band that lashes is along the outer ring
Housing the week side of boss tightens the outer ring housing.
Further, the quantity for lashing band is multiple, multiple described to lash band along the frequency-changeable compressor
Axially spaced-apart is set.
Compared with prior art, the invention has the advantages that：
Silencing means provided by the invention is employed by PP GRANULES and polyethylene terephthalate particle
The acoustic material mixed carries out noise reduction to frequency-changeable compressor, and it is high in each frequency range to reduce frequency-changeable compressor
Noise caused by speed rotation, especially can be greatly reduced its noise in some frequency ranges, make frequency-changeable compressor
Caused noise can reach criteria for noise.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation of silencing means provided in an embodiment of the present invention；
Fig. 2 is the top view of silencing means provided in an embodiment of the present invention；
Fig. 3 is the front view of top cover in silencing means provided in an embodiment of the present invention；
Fig. 4 is the top view of top cover in silencing means provided in an embodiment of the present invention；
Fig. 5 is the erasure effect test chart of silencing means provided in an embodiment of the present invention；
Fig. 6 is pair of silencing means provided in an embodiment of the present invention and existing silencing cotton in X-direction erasure effect
Than figure；
Fig. 7 is pair of silencing means provided in an embodiment of the present invention and existing silencing cotton erasure effect in the Y direction
Than figure.
In Fig. 1 to 5,
1：Outer ring housing；2：Inner ring housing；3：Acoustic material；4：Annular bottom plate；5：Top cover.
Embodiment
Silencing means proposed by the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
According to following explanation and claims, advantages and features of the invention will become apparent from.It is it should be noted that attached
Figure uses using very simplified form and non-accurately ratio, only to conveniently, lucidly auxiliary is said
The purpose of the bright embodiment of the present invention.
The core concept of the present invention is, there is provided a kind of silencing means, it is used for frequency-changeable compressor noise reduction, institute
Stating silencing means includes outer ring housing, inner ring housing, acoustic material and annular bottom plate, the outer ring housing and
The inner ring housing may be contained within the annular bottom plate, and the inner ring housing is located at the outer ring enclosure interior,
The inner ring housing is wrapped in outside the frequency-changeable compressor, is filled out between the outer ring housing and the inner ring housing
Filled with the acoustic material, the acoustic material is at least by PP GRANULES and polyethylene terephthalate
Particle mixes.Silencing means provided by the invention is employed by PP GRANULES and poly terephthalic acid second
The acoustic material that polybutylene terephthalate particles mix carries out noise reduction to frequency-changeable compressor, reduces frequency-changeable compressor and exists
Noise caused by each frequency range high speed rotation, especially can be greatly reduced its noise in some frequency ranges, make
Noise caused by frequency-changeable compressor can reach criteria for noise.
It refer to the structural representation that Fig. 1 to 7, Fig. 1 is silencing means provided in an embodiment of the present invention；Fig. 2
For the top view of silencing means provided in an embodiment of the present invention；Fig. 3 fills for noise reduction provided in an embodiment of the present invention
Put the front view of middle top cover；Fig. 4 is the top view of top cover in silencing means provided in an embodiment of the present invention；Fig. 5
For the erasure effect test chart of silencing means provided in an embodiment of the present invention；Fig. 6 provides for the embodiment of the present invention
Silencing means and existing silencing cotton X-direction erasure effect comparison diagram；Fig. 7 carries for the embodiment of the present invention
The comparison diagram of the silencing means of confession and existing silencing cotton erasure effect in the Y direction.
As depicted in figs. 1 and 2, the embodiment of the present invention provides a kind of silencing means, and it is used for frequency-changeable compressor
Noise reduction, the silencing means include outer ring housing 1, inner ring housing 2, acoustic material 3 and annular bottom plate 4,
The outer ring housing 1 and the inner ring housing 2 may be contained within the annular bottom plate 4, the inner ring housing 2
Inside the outer ring housing 1, the inner ring housing 2 is wrapped in outside the frequency-changeable compressor, described outer
Be filled with the acoustic material 3 between circle housing 1 and the inner ring housing 2, the acoustic material 3 at least by
Polypropylene (Polypropylene, abbreviation PP) particle and polyethylene terephthalate (Polyethylene
Terephthalate, abbreviation PET) particle mixes.
Silencing means provided in an embodiment of the present invention employs the particle and poly terephthalic acid by crystalling propylene
The acoustic material 3 that the particle of glycol ester crystallization mixes carries out noise reduction to frequency-changeable compressor, reduces change
Frequency compressor each frequency range at a high speed rotation caused by noise, can be especially greatly reduced in some frequency ranges
Its noise, noise caused by frequency-changeable compressor is set to reach criteria for noise.
Further, the acoustic material is mixed by the raw material of following percents by volume：
PP GRANULES：50%-65%；Polyethylene terephthalate particle：35%-50%.
In the present embodiment, the acoustic material is mixed by the raw material of following percents by volume：
PP GRANULES：65%；Polyethylene terephthalate particle：35%.
As shown in Figs. 5 to 7, after erasure effect test is carried out to silencing means provided in an embodiment of the present invention,
Draw its than existing silencing cotton on the basis of each frequency range has more preferable noise reduction, also in X side
To erasure effect is obvious between 3150Hz-5000Hz between 1600Hz-2000Hz, and in the Y direction
Erasure effect is obvious between 1250Hz-2500Hz, therefore the silencing means can reach more preferable in these frequency ranges
Noise reduction.
Further, the cross section of the inner ring housing 2 is circle.Housing in view of frequency-changeable compressor is in
Near cylindrical, the circular design of inner ring housing 2 can play the work of parcel frequency-changeable compressor to greatest extent
With so that whole silencing means erasure effect is more preferable.
Further, the cross section of the outer ring housing 1 is circle.The circular design of outer ring housing 1 makes it
Easily match with inner ring housing 1, reach more preferable erasure effect, and be also easier to make and carry.
Further, as shown in Figure 3 and Figure 4, the silencing means also includes top cover 5, and the top cover 5 covers
On the outer ring housing 1, to close the acoustic material 3 between the outer ring housing 1 and inner ring housing 2.
Further, the making material of the inner ring housing 2 and the outer ring housing 1 is flexible material.Should
Design makes it possible to tighten up inner ring housing 2 and outer ring housing 1, so that acoustic material 3 can be more close to become
Frequency compressor, improve erasure effect.In the present embodiment, the flexible material is paper, it is contemplated that
The flexible material can also be the other materials that other can be tightened up by tightening device, and it, which can also reach, carries
The purpose of the high silencing means erasure effect, therefore the present invention is also intended to comprising including these technical schemes.
Further, the silencing means (does not show, due to lashing band also including at least one band that lashes in figure
For prior art, therefore just repeat no more herein), it is described lash band tightened along the week side of boss of outer ring housing 1 it is described
Outer ring housing 1, so that acoustic material 3 can improve erasure effect closer to frequency-changeable compressor.In this implementation
In example, the quantity for lashing band is multiple described to lash band along the frequency-changeable compressor axially spaced-apart to be multiple
Set, so that acoustic material 3 is axially uniform for the degree of being close to of the frequency-changeable compressor along frequency-changeable compressor, this
It is also beneficial to improve the erasure effect of the silencing means.
Obviously, those skilled in the art can carry out various changes and deformation without departing from this hair to the present invention
Bright spirit and scope.So, if the present invention these modifications and variations belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
1. a kind of silencing means, for frequency-changeable compressor noise reduction, it is characterised in that including outer ring housing, interior
Circle housing, acoustic material and annular bottom plate, the outer ring housing and the inner ring housing may be contained within the ring
On shape bottom plate, the inner ring housing is located at the outer ring enclosure interior, and the inner ring housing is wrapped in the change
Outside frequency compressor, be filled with the acoustic material between the outer ring housing and the inner ring housing, it is described every
Sound material is at least mixed by PP GRANULES and polyethylene terephthalate particle.
2. silencing means according to claim 1, it is characterised in that the acoustic material is by following volumes
The raw material of percentage mixes：
PP GRANULES：50%-65%；Polyethylene terephthalate particle：35%-50%.
3. silencing means according to claim 2, it is characterised in that the acoustic material is by following volumes
The raw material of percentage mixes：
PP GRANULES：65%；Polyethylene terephthalate particle：35%.
4. silencing means according to claim 1, it is characterised in that the cross section of the inner ring housing is
It is circular.
5. silencing means according to claim 1, it is characterised in that the cross section of the outer ring housing is
It is circular.
6. silencing means according to claim 1, it is characterised in that also including top cover, the top cover lid
On the outer ring housing.
7. the silencing means according to any one of claim 1 to 6, it is characterised in that the inner ring shell
The making material of body and the outer ring housing is flexible material.
8. silencing means according to claim 7, it is characterised in that the flexible material is paper.
9. silencing means according to claim 7, it is characterised in that band also is lashed including at least one,
The band that lashes tightens the outer ring housing along the outer ring housing the week side of boss.
10. silencing means according to claim 9, it is characterised in that the quantity for lashing band is more
It is individual, it is multiple described to lash band and set along the frequency-changeable compressor axially spaced-apart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610554045.2A CN107676242A (en) | 2016-07-14 | 2016-07-14 | Silencing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610554045.2A CN107676242A (en) | 2016-07-14 | 2016-07-14 | Silencing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107676242A true CN107676242A (en) | 2018-02-09 |
Family
ID=61132921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610554045.2A Pending CN107676242A (en) | 2016-07-14 | 2016-07-14 | Silencing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107676242A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02108873A (en) * | 1988-10-14 | 1990-04-20 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN2733241Y (en) * | 2004-10-28 | 2005-10-12 | 浙江盾安人工环境设备股份有限公司 | Noise abatement apparatus |
| CN1715674A (en) * | 2004-05-14 | 2006-01-04 | 科普兰公司 | Compressor sound attenuation enclosure |
| CN201916150U (en) * | 2010-12-16 | 2011-08-03 | 石家庄国祥运输设备有限公司 | Noise reducing device for air conditioner compressor |
| CN202573187U (en) * | 2012-03-20 | 2012-12-05 | 浙江吉利汽车研究院有限公司 | Automotive acoustic liner |
| CN105189951A (en) * | 2013-05-07 | 2015-12-23 | 株式会社神户制钢所 | Muffler sound-blocking structure |
| CN206386244U (en) * | 2016-07-14 | 2017-08-08 | 上海日立电器有限公司 | Silencing means |
-
2016
- 2016-07-14 CN CN201610554045.2A patent/CN107676242A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02108873A (en) * | 1988-10-14 | 1990-04-20 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN1715674A (en) * | 2004-05-14 | 2006-01-04 | 科普兰公司 | Compressor sound attenuation enclosure |
| CN2733241Y (en) * | 2004-10-28 | 2005-10-12 | 浙江盾安人工环境设备股份有限公司 | Noise abatement apparatus |
| CN201916150U (en) * | 2010-12-16 | 2011-08-03 | 石家庄国祥运输设备有限公司 | Noise reducing device for air conditioner compressor |
| CN202573187U (en) * | 2012-03-20 | 2012-12-05 | 浙江吉利汽车研究院有限公司 | Automotive acoustic liner |
| CN105189951A (en) * | 2013-05-07 | 2015-12-23 | 株式会社神户制钢所 | Muffler sound-blocking structure |
| CN206386244U (en) * | 2016-07-14 | 2017-08-08 | 上海日立电器有限公司 | Silencing means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180209 |
|
| RJ01 | Rejection of invention patent application after publication |