CN106468199A - Electromotor Pear-Shaped deafener - Google Patents
Electromotor Pear-Shaped deafener Download PDFInfo
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- CN106468199A CN106468199A CN201510518192.XA CN201510518192A CN106468199A CN 106468199 A CN106468199 A CN 106468199A CN 201510518192 A CN201510518192 A CN 201510518192A CN 106468199 A CN106468199 A CN 106468199A
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- calabash
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Abstract
The invention discloses a kind of electromotor Pear-Shaped deafener, including air inlet pipe, calabash pipe, escape pipe, housing；It is provided with calabash pipe, calabash pipe is the pipeline being in series by the spherical cavity of plural hollow in housing；Air inlet pipe and escape pipe are separately fixed at the two ends of housing, and air inlet pipe and escape pipe are respectively communicated with calabash pipe two ends, are filled with auxiliary noise reduction layer between calabash pipe and housing.Beneficial effect is：Enter the process repeating in next spheroid to eliminate the noise by connecting tube after the noise elimination of dividing plate, discharge finally by escape pipe, the waste gas eliminated the noise, reflecting properties using sound wave, make sound wave that more reflection to occur in calabash shape pipeline, sound wave is chaotic simultaneously, thus reaching more preferable noise reduction, has the characteristics that low cost of manufacture, good looking appearance.
Description
Technical field
The present invention relates to a kind of electromotor Pear-Shaped deafener.
Background technology
Deafener is a kind of device stoping sound transmission and allowing air-flow to pass through, and is the important measures eliminating air power noise.Automotive muffler can be divided into reactive muffler, dissipative muffler and impedance composite muffler three class by noise-cancelling theory and structure.Reactive muffler
When reactive muffler is internally to form the various muffling units such as expansion chambers, resonant chamber by the part such as pipeline, dividing plate, there is reflection and interfere in sound wave when propagating, and reduces acoustic energy and reaches noise elimination purpose.Reactive muffler noise elimination frequency band is limited, and generally good to low, midband soundproof effect, high frequency soundproof effect is poor, adopts reactive muffler lorry more.Dissipative muffler E is the acoustic filter that the pipeline filling sucting sound material that aerofluxuss internally are passed through reaches noise elimination purpose to absorb acoustic energy.Good to medium, high frequency soundproof effect, less as automobile exhaust muffler merely, typically combined use with reactive muffler.Impedance composite muffler
It is to use the acoustic filter that reactive muffling unit and sound-absorbing material combination are constituted respectively, it has the common feature of resistance, dissipative muffler.There is good soundproof effect to basic, normal, high frequency noise.Reduce the exhaust noise of electromotor, and so that high-temp waste gas is safely and effectively discharged.Acoustic filter, as a part for discharge duct, should ensure that its aerofluxus is unimpeded, resistance is little and sufficient intensity.
Acoustic filter is as the vitals reducing engine noise, its size, shape have different noise reductions with the change of structure to the difference flat rate region of noise, but, at present in the design of unit, electromotor for different capacity, the design of acoustic filter carries larger blindness, and in the design typically evened out, plant design personnel the substantial amounts of time and efforts of telephone expenses can not possibly carry out special test and research to the noise of electromotor and the optimum state of deafener noise reduction.
Content of the invention
It is an object of the invention to：For above-mentioned problem, provide a kind of electromotor Pear-Shaped deafener, using the reflecting properties of sound wave, make sound wave that more reflection to occur in calabash shape pipeline, sound wave is chaotic simultaneously, thus reaching more preferable noise reduction, has the characteristics that low cost of manufacture, good looking appearance.
The technical solution used in the present invention is as follows：
A kind of electromotor Pear-Shaped deafener it is characterised in that：Including air inlet pipe, calabash pipe, escape pipe, housing；It is provided with calabash pipe, calabash pipe is the pipeline being in series by the spherical cavity of plural hollow in housing；Air inlet pipe and escape pipe are separately fixed at the two ends of housing, and air inlet pipe and escape pipe are respectively communicated with calabash pipe two ends, are filled with auxiliary noise reduction layer between calabash pipe and housing.
Further, air inlet pipe uses the metallic conduit that thickness is 3-6mm.
Further：It is provided with dividing plate, the aperture that dividing plate is provided with through hole through hole is 2-5mm in calabash pipe.
Further：The middle part being installed in spherical cavity of dividing plate.
Further：The thickness of dividing plate is 3-6mm.
Further：Dividing plate is ceramic wafer.
Further：Auxiliary noise reduction layer is adopted as sponge.
Further：The connecting tube in series connection ball-type chamber is metal hose.
Further：Calabash pipe has 2-6 spherical cavity.
To sum up, due to employing technique scheme, the invention has the beneficial effects as follows：The calabash shape motor silencer of the present invention, waste gas in electromotor enters in the spheroid of calabash pipe by air inlet pipe, enter the process repeating in next spheroid to eliminate the noise by connecting tube after the noise elimination of dividing plate, discharge finally by escape pipe, the waste gas eliminated the noise, using the reflecting properties of sound wave, make sound wave that more reflection to occur in calabash shape pipeline, sound wave is chaotic simultaneously, thus reaching more preferable noise reduction, has the characteristics that low cost of manufacture, good looking appearance.The electromotor of multiple different models can be applied to and good erasure effect can be played in different workplaces.
Brief description
Fig. 1 is electromotor Pear-Shaped muffler structure figure in the present invention；
In figure labelling：1- air inlet pipe, 2- assists noise reduction layer, 3- through hole, 4- calabash pipe, 5- connecting tube, 6- dividing plate, 7- escape pipe, 8- housing.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Specific embodiment 1：
As shown in figure 1, the calabash shape motor silencer of the present invention, including air inlet pipe 1, auxiliary noise reduction layer 2, through hole 3, calabash pipe 4, connecting tube 5, dividing plate 6, escape pipe 7, housing 8, in housing 8, it is provided with calabash pipe 4；Calabash pipe 4 is the pipeline being formed by connecting by connecting tube 5 by the spherical cavity of plural hollow，The pipeline configuration of this Pear-Shaped can effectively upset the air flow direction in pipeline，And so that sound wave is transmitted back and forth in the cavity of spherical cavity，And weaken acoustic wave energy，Reach the effect of noise elimination，Air inlet pipe 1 and escape pipe 7 are separately fixed at the two ends of housing 8，The side wall of housing 8 fixes air inlet pipe 1 or the middle part of escape pipe 7，Ensure that air inlet pipe 1 or escape pipe 7 will cause air inlet pipe 1 or escape pipe 7 to change with respect to the relative position of housing 8 because of shake，And air inlet pipe 1 and escape pipe 7 are respectively fixedly connected with the two ends of calabash pipe 4，It is provided with dividing plate 6 in calabash pipe 4，The shape of this dividing plate 6 is corresponding with the inner surface configuration of the calabash pipe 4 of dividing plate 6 position，And relative movement will not occur between dividing plate 6 and calabash pipe 4，Dividing plate 6 is provided with through hole 3，It is filled with auxiliary noise reduction layer 2 between calabash pipe 4 and housing 8，The effect of this auxiliary noise reduction layer 2 is to prevent，Sound wave in calabash pipe 4 transmits to housing 8，Reach the good effect cutting down acoustic wave energy，Housing 8 is made using metal material，Air inlet pipe 1 is provided with flange on the one end outside housing 8，By this flange, acoustic filter is fixed on electromotor.
Specific embodiment 2：
As shown in Figure 1, the calabash shape motor silencer of the present invention, including air inlet pipe 1, auxiliary noise reduction layer 2, through hole 3, calabash pipe 4, connecting tube 5, dividing plate 6, escape pipe 7, housing 8, housing 8 is made using metal material, and housing 8 be shaped as ellipse, be provided with calabash pipe 4 in housing 8；Calabash pipe 4 is the pipeline being in series by connecting tube 5 by the spherical cavity of plural hollow, and connecting tube 5 is metal hose, and the spherical cavity quantity of the hollow on calabash pipe 4 is 2-6.Air inlet pipe 1 and escape pipe 7 are separately fixed at the two ends of housing 8, and wherein air inlet pipe 1 one end outside housing 8 is provided with flange.This air inlet pipe 1 uses the metallic conduit that thickness is 3-6mm.And air inlet pipe 1 and escape pipe 7 are respectively fixedly connected with the two ends of calabash pipe 4, it is provided with dividing plate 6 in calabash pipe 4, the middle part being installed in spherical cavity of dividing plate 6, the thickness of this dividing plate 6 is 3-6mm, this dividing plate 6 is made using ceramic material, ceramic material not only has the effect absorbing acoustic wave energy, but also there is resistant to elevated temperatures effect, due in the waste gas discharged from electromotor not only noise high, and EGT is very high, the high temperature in waste gas occurs to melt or the situation of deformation occurs can effectively to prevent dividing plate 6 from answering using ceramic material, the normal work of impact acoustic filter.Dividing plate 6 is provided with through hole 3, and the aperture of through hole 3 is 2-5mm, and the quantity of its through hole 3 is 8-20, and these through holes 3 are evenly distributed on dividing plate 6, and after the unconventional through hole of these sound waves 3, noise substantially reduces.It is filled with auxiliary noise reduction layer 2, auxiliary noise reduction layer 2 is made using sound-absorbing material between calabash pipe 4 and housing 8.
The calabash shape motor silencer of the present invention, waste gas in electromotor enters in the spheroid of calabash pipe 4 by air inlet pipe 1, enter the process repeating to eliminate the noise in next spheroid by connecting tube 5 after the noise elimination of dividing plate 6, discharge finally by escape pipe 7, the waste gas eliminated the noise, this acoustic filter has the more noise energies of absorption, excellent noise reduction effect, low cost of manufacture, the feature of good looking appearance.The electromotor of multiple different models can be applied to and good erasure effect can be played in different workplaces.
These are only presently preferred embodiments of the present invention, not in order to limit the present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of electromotor Pear-Shaped deafener it is characterised in that：Including air inlet pipe, calabash pipe, escape pipe, housing；It is provided with calabash pipe, calabash pipe is the pipeline being in series by the spherical cavity of plural hollow in housing；Air inlet pipe and escape pipe are separately fixed at the two ends of housing, and air inlet pipe and escape pipe are respectively communicated with calabash pipe two ends, are filled with auxiliary noise reduction layer between calabash pipe and housing.
2. electromotor Pear-Shaped deafener according to claim 1 it is characterised in that：Air inlet pipe uses the metallic conduit that thickness is 3-6mm.
3. electromotor Pear-Shaped deafener according to claim 1 it is characterised in that：It is provided with dividing plate, dividing plate is provided with through hole, and the aperture of through hole is 2-5mm in calabash pipe.
4. electromotor Pear-Shaped deafener according to claim 3 it is characterised in that：The middle part being installed in spherical cavity of dividing plate.
5. the electromotor Pear-Shaped deafener according to claim 3 or 4 it is characterised in that：The thickness of dividing plate is 3-6mm.
6. the electromotor Pear-Shaped deafener according to claim 3 or 4 it is characterised in that：Dividing plate is ceramic wafer.
7. electromotor Pear-Shaped deafener according to claim 1 it is characterised in that：Auxiliary noise reduction layer is adopted as sponge.
8. electromotor Pear-Shaped deafener according to claim 1 it is characterised in that：The connecting tube in series connection ball-type chamber is metal hose.
9. electromotor Pear-Shaped deafener according to claim 1 it is characterised in that：Calabash pipe has 2-6 spherical cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510518192.XA CN106468199A (en) | 2015-08-21 | 2015-08-21 | Electromotor Pear-Shaped deafener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510518192.XA CN106468199A (en) | 2015-08-21 | 2015-08-21 | Electromotor Pear-Shaped deafener |
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| Publication Number | Publication Date |
|---|---|
| CN106468199A true CN106468199A (en) | 2017-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510518192.XA Pending CN106468199A (en) | 2015-08-21 | 2015-08-21 | Electromotor Pear-Shaped deafener |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314470A (en) * | 2017-08-22 | 2017-11-03 | 广东美的制冷设备有限公司 | Air-conditioner outdoor unit and air conditioner |
| CN107514325A (en) * | 2017-10-17 | 2017-12-26 | 天津大创科技有限公司 | A kind of denoising device applied to automotive air intake pipeline |
| CN109199216A (en) * | 2018-09-28 | 2019-01-15 | 江苏美的清洁电器股份有限公司 | Hand-held cleaning device and cleaning system |
| CN112253285A (en) * | 2020-10-19 | 2021-01-22 | 江苏徐工工程机械研究院有限公司 | Vehicle silencing device, vehicle comprising same and vehicle waste heat utilization method |
-
2015
- 2015-08-21 CN CN201510518192.XA patent/CN106468199A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314470A (en) * | 2017-08-22 | 2017-11-03 | 广东美的制冷设备有限公司 | Air-conditioner outdoor unit and air conditioner |
| CN107514325A (en) * | 2017-10-17 | 2017-12-26 | 天津大创科技有限公司 | A kind of denoising device applied to automotive air intake pipeline |
| CN107514325B (en) * | 2017-10-17 | 2024-04-30 | 天津大创科技有限公司 | Noise reduction device applied to automobile air inlet pipeline |
| CN109199216A (en) * | 2018-09-28 | 2019-01-15 | 江苏美的清洁电器股份有限公司 | Hand-held cleaning device and cleaning system |
| CN112253285A (en) * | 2020-10-19 | 2021-01-22 | 江苏徐工工程机械研究院有限公司 | Vehicle silencing device, vehicle comprising same and vehicle waste heat utilization method |
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Application publication date: 20170301 |
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