CN205013165U - Engine and silencer thereof - Google Patents

Engine and silencer thereof Download PDF

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Publication number
CN205013165U
CN205013165U CN201520801991.3U CN201520801991U CN205013165U CN 205013165 U CN205013165 U CN 205013165U CN 201520801991 U CN201520801991 U CN 201520801991U CN 205013165 U CN205013165 U CN 205013165U
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China
Prior art keywords
silencing apparatus
noise
shell body
frame
cavity
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CN201520801991.3U
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Chinese (zh)
Inventor
李丽萍
薛凤伟
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Yirunbang Technology Hebei Co ltd
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Changchun Leshi Technology Co Ltd
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Priority to CN201520801991.3U priority Critical patent/CN205013165U/en
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  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The utility model discloses a silencer, including the shell body and set up in the rubber parcel layer of shell body surface, the both ends of shell body are air inlet and gas outlet respectively, the inboard welding of shell body has interior casing, the shell body with the inner shell bodily form becomes the cavity, interior casing is provided with the edge the axial of silencer and radial evenly distributed's noise elimination hole. The noise elimination hole sets up in being used for formation on the lateral wall of the interior casing of cavity. The shell body with the cross -section of interior casing all sets up to circular. Rubber parcel layer specifically is ethylene - acrylic rubber layer. The utility model also discloses an engine of including above -mentioned silencer. Above -mentioned silencer, the pneumatic noise of can effectual reduction engine admitting air, simultaneously the rubber of shell body surface parcel layer can effectual preventions noise be passed through the muffler shell and is physically radiated to engine compartment to reach and reduce radiated noise, optimize the effect of driver's cabin noise.

Description

Motor and silencing apparatus thereof
Technical field
The utility model relates to Vehicle Engineering technical field, particularly a kind of silencing apparatus.The utility model also relates to a kind of motor with this silencing apparatus.
Background technique
Along with the fast development of China's economic construction, market increases day by day for the demand of the motor with silencing apparatus.
Turbosupercharger is as a kind of efficient, energy-conservation environmentally friendly machine, because it has the advantage such as torque characteristics, reduction fuel consume improving automobile engine tail gas exhaust emission, the power improving motor and weight ratio, raising motor, turbosupercharger is widely used in automobile industry.
The gas compressor aerodynamic noise that turbosupercharger produces is propagated and radiation to suction port by suction tude and air-strainer, because gas compressor aerodynamic noise has broadband character, air-strainer itself can not meet the requirement reducing intake system noise, the noise reduction measure of the automobile air inlet system of present extensive use mainly arranges Helmholtz silencing apparatus and several quarter-wave long tubes, but they are the noises eliminating some CF center frequency targetedly, frequency band is narrower, cannot eliminate broadband noise; Therefore, designing the good air inlet broadband muffler of soundproof effect is the important channel controlling supercharged engine induction noise.
The intake silencer of extensive use is in the market quarter-wave long tube and Helmholtz silencing apparatus, but quarter-wave long tube and Helmholtz silencing apparatus are the noises eliminating a certain CF center frequency targetedly, frequency band is narrow, and is only applicable to medium and low frequency section, is not suitable in frequency applications.During for solving different frequency noise problems, usually need to use several quarter-wave long tubes or Helmholtz silencing apparatus simultaneously, such design noise reduction is poor, motor high frequency noise problem can not be solved very well, also be unfavorable for the layout of whole gas handling system simultaneously, have impact on its aesthetic property greatly.
Model utility content
The purpose of this utility model is to provide a kind of silencing apparatus, and this silencing apparatus can solve the noise problem in wider frequency section.Another object of the present utility model is to provide a kind of motor comprising above-mentioned silencing apparatus.
For achieving the above object, the utility model provides a kind of silencing apparatus, and comprise frame and be arranged at the rubber coating of described frame outer surface, the two ends of described frame are respectively suction port and air outlet; The inner side of described frame is welded with inner housing, and described frame and described inner housing form cavity, and described inner housing is provided with axis along described silencing apparatus and the equally distributed sound attenuation hole of radial direction.
Preferably, described sound attenuation hole is arranged on the sidewall of the inner housing forming described cavity.
Preferably, the cross section of described frame and described inner housing is all set to circle.
Preferably, described rubber coating is specially ethylene-acrylate rubber layer.
Preferably, the outer surface of described frame is also provided with to prevent the stiffening rib that described frame is out of shape and prevents described rubber coating from coming off from the surface of described frame.
Preferably, described sound attenuation hole is the circular hole of diameter range between 1 millimeter to 30 millimeters; The number scope of described circular hole is between 1 to 1000.
Preferably, the thickness range of described rubber coating is between 0.1 millimeter to 20 millimeters.
Preferably, the altitude range of described stiffening rib is between 0.1 millimeter to 10 millimeters.
The utility model also provides a kind of motor, comprises silencing apparatus; Described silencing apparatus is the silencing apparatus described in above-mentioned any one.
Relative to above-mentioned background technology, the silencing apparatus that the utility model provides, air draught enters silencing apparatus inside by suction port, and by multiple sound attenuation holes that inner housing distributes, repeatedly flow control enters different cavitys, changes the audio frequency of Primordial Qi stream step by step.Due to inner housing be dispersed with quantity not wait sound attenuation hole, and the volume of each cavity is also not quite similar, so the cooperative action of each cavity place sound attenuation hole is also different, the noisy frequency range of elimination is then different, so can eliminate the noise of broad frequency band, and noise reduction amplitude is larger.The application of rubber coating, effectively can stop noise by outer muffler case to engine compartment radiation, thus reach reduction radiated noise simultaneously, optimizes the effect of operator cabin noise.
Accompanying drawing explanation
The structural representation of the silencing apparatus that Fig. 1 provides for the utility model embodiment.
Wherein:
Inner housing 1, frame 2, rubber coating 3, first dividing plate 4, second partition 5, suction port 6, air outlet 7, first cavity 8, second cavity 9, the 3rd cavity 10.
Embodiment
Core of the present utility model is to provide a kind of silencing apparatus, and this silencing apparatus can reduce engine charge pneumatic noise and radiated noise; Another core of the present utility model is to provide a kind of motor comprising above-mentioned silencing apparatus.
In order to make those skilled in the art understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 1, the structural representation of the silencing apparatus that Fig. 1 provides for the utility model embodiment.
The silencing apparatus that the utility model provides, comprises frame 2, and the outer surface of frame 2 is provided with rubber coating 3; In addition, the two ends of frame 2 are respectively suction port 6 and air outlet 7, preferably herein suction port 6 and air outlet 7 internal diameter and main drive tube are consistent; As shown in Figure of description 1.
And the inner side of frame 2 is welded with inner housing 1, frame 2 and inner housing 1 form cavity; Preferably herein inner housing 1 and frame 2 are connected by hot plate welding and seal; And be provided with at least one dividing plate in cavity, cavity is divided at least two cavitys by least one dividing plate; In addition, inner housing 1 is provided with axis along silencing apparatus and the equally distributed sound attenuation hole of radial direction.It should be noted that, the mounting point of silencing apparatus and angle can be arranged arbitrarily according to the spatial requirement of installing herein.
Herein, shown in Figure of description 1, preferably dividing plate is set to two; Namely be provided with the first dividing plate 4 and second partition 5 in the cavity between inner housing 1 and frame 2, and cavity is divided into the first cavity 8, second cavity 9 and the 3rd cavity 10 by the first dividing plate 4 and second partition 5.So, air draught enters silencing apparatus inside by suction port 6, and by multiple sound attenuation holes of distribution on inner housing 1, repeatedly flow control enters different cavitys, changes the audio frequency of Primordial Qi stream step by step.Due to inner housing 1 be dispersed with quantity not wait sound attenuation hole, and the volume of each cavity is also not quite similar, so the cooperative action of each cavity place sound attenuation hole is also different, the noisy frequency range of elimination is then different, so can eliminate the noise of broad frequency band, and noise reduction amplitude is larger.The application of rubber coating 3, effectively can stop noise by outer muffler case to engine compartment radiation, thus reach reduction radiated noise simultaneously, optimizes the effect of operator cabin noise.So, only utilize a silencing apparatus just can solve noise problem in wider frequency section, and noise reduction amplitude is large, successful, is beneficial to layout.
That is, the volume of the first cavity 8, second cavity 9 and the 3rd cavity 10 is set to difference; Certainly, according to actual needs, the first cavity 8, second cavity 9 also can be identical with the volume of the 3rd cavity 10.
On above-mentioned basis, sound attenuation hole is arranged on the sidewall of the inner housing forming cavity.That is, inner housing 1 is dispersed with sound attenuation hole at each cavity place, and the volume of preferred each cavity is different, so the effect of each cavity place sound attenuation hole is also different, the noisy frequency range eliminated is then different, so can eliminate the noise of broad frequency band, and noise reduction amplitude is larger.
Herein, the axial position of the first dividing plate 4 and second partition 5 can adjust according to the wideband noise elimination of frequency range and amplitude.Certainly, the quantity of dividing plate and cavity also can adjust according to the wideband noise elimination of frequency range and amplitude, is not limited to two dividing plates mentioned above and three cavitys.
In addition, the cross section of frame 2 and inner housing 1 is all set to circle herein.Certainly, according to actual needs, the cross section of frame 2 and inner housing 1 can be also other shapes, will repeat no more herein.
For rubber coating 3, rubber coating 3 is set to ethylene-acrylate rubber layer herein, i.e. AEM.Under the effect of ethylene-acrylate rubber layer, effectively can stop noise by outer muffler case to engine compartment radiation, thus reach reduction radiated noise, optimize the effect of operator cabin noise.In addition, by sulfuration process, ethylene-acrylate rubber layer can be coated on frame 2 herein.Certainly, according to actual working environment needs, the material of rubber coating also can be the various rubber such as ACM, FKM, NBR, EPDM, ECO.Coating can be sheet rubber, also can be rubber pange.
It should be noted that, herein by the thickness range of rubber coating 3 between 0.1 millimeter to 20 millimeters.Preferred thickness is 3 millimeters, and certainly, according to actual needs, the thickness of rubber coating 3 can also adjust.
For the outer surface of frame 2, can also be provided with to prevent frame 2 to be out of shape and prevent to state the stiffening rib that rubber coating 3 comes off from the surface of frame 2, and the altitude range of stiffening rib is between 0.1 millimeter to 10 millimeters.
Apparently, utilize stiffening rib that frame 2 can be prevented to be out of shape, rubber coating 3 can be prevented from slippage frame 2 simultaneously; Certainly, the shape design of stiffening rib can have multiple set-up mode, does not make concrete restriction herein.The preferred height by stiffening rib is set to 1 millimeter herein.
For above-mentioned sound attenuation hole, this paper is preferred is set to circular hole by sound attenuation hole, and the diameter range of sound attenuation hole is between 1 millimeter to 30 millimeters; In addition, the number scope of circular hole is between 1 to 1000.
Certainly, according to actual needs, the shape of sound attenuation hole and number are not limited to mentioned above, and the quantity of sound attenuation hole and distribution can adjust according to the wideband noise elimination of frequency range and amplitude.
A kind of motor provided by the utility model, comprises the silencing apparatus described by above-mentioned specific embodiment; Other parts of motor with reference to prior art, no longer can be launched herein.
Above silencing apparatus provided by the utility model and motor thereof are described in detail.Apply specific case herein to set forth principle of the present utility model and mode of execution, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.

Claims (9)

1. a silencing apparatus, it is characterized in that, comprise frame (2) and be arranged at the rubber coating (3) of described frame (2) outer surface, the two ends of described frame (2) are respectively suction port (6) and air outlet (7); The inner side of described frame (2) is welded with inner housing (1), described frame (2) and described inner housing (1) form cavity, and described inner housing (1) is provided with axis along described silencing apparatus and the equally distributed sound attenuation hole of radial direction.
2. silencing apparatus according to claim 1, is characterized in that, described sound attenuation hole is arranged on the sidewall of the inner housing (1) forming described cavity.
3. silencing apparatus according to claim 1 and 2, is characterized in that, the cross section of described frame (2) and described inner housing (1) is all set to circle.
4. silencing apparatus according to claim 3, is characterized in that, described rubber coating (3) is specially ethylene-acrylate rubber layer.
5. silencing apparatus according to claim 4, it is characterized in that, the outer surface of described frame (2) is also provided with the stiffening rib preventing described frame (2) to be out of shape and prevent described rubber coating (3) from coming off from the surface of described frame (2).
6. silencing apparatus according to claim 5, is characterized in that, described sound attenuation hole is the circular hole of diameter range between 1 millimeter to 30 millimeters; The number scope of described circular hole is between 1 to 1000.
7. silencing apparatus according to claim 6, is characterized in that, the thickness range of described rubber coating (3) is between 0.1 millimeter to 20 millimeters.
8. silencing apparatus according to claim 7, is characterized in that, the altitude range of described stiffening rib is between 0.1 millimeter to 10 millimeters.
9. a motor, comprises silencing apparatus; It is characterized in that, described silencing apparatus is the silencing apparatus described in the claims 1 to 8 any one.
CN201520801991.3U 2015-10-13 2015-10-13 Engine and silencer thereof Active CN205013165U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105422337A (en) * 2015-12-07 2016-03-23 华中科技大学 Air intake silencer
CN105822469A (en) * 2016-05-11 2016-08-03 安徽江淮汽车股份有限公司 Noise abatement device of engine air inlet system
CN108625928A (en) * 2018-06-14 2018-10-09 东风小康汽车有限公司重庆分公司 A kind of muffler and automobile
CN108866967A (en) * 2018-08-02 2018-11-23 海信(山东)冰箱有限公司 A kind of denoising structure for washing machine
CN109779721A (en) * 2019-03-18 2019-05-21 汉腾汽车有限公司 A kind of modularization silencer
CN113294223A (en) * 2021-06-15 2021-08-24 金华欧仑催化科技有限公司 Exhaust silencer with automatic following under two working conditions for internal combustion engine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105422337A (en) * 2015-12-07 2016-03-23 华中科技大学 Air intake silencer
CN105822469A (en) * 2016-05-11 2016-08-03 安徽江淮汽车股份有限公司 Noise abatement device of engine air inlet system
CN108625928A (en) * 2018-06-14 2018-10-09 东风小康汽车有限公司重庆分公司 A kind of muffler and automobile
CN108625928B (en) * 2018-06-14 2020-02-04 东风小康汽车有限公司重庆分公司 Muffler and car
CN108866967A (en) * 2018-08-02 2018-11-23 海信(山东)冰箱有限公司 A kind of denoising structure for washing machine
CN109779721A (en) * 2019-03-18 2019-05-21 汉腾汽车有限公司 A kind of modularization silencer
CN113294223A (en) * 2021-06-15 2021-08-24 金华欧仑催化科技有限公司 Exhaust silencer with automatic following under two working conditions for internal combustion engine

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C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20191230

Address after: Plant B08, No. 10, Yongfeng Road, high end Park, Beichen economic and Technological Development Zone, Beichen District, Tianjin 300000

Patentee after: YIRUNBANG TECHNOLOGY (TIANJIN) CO.,LTD.

Address before: 1713, room 5, building G10, jade Huaxi, Optics Valley Avenue, hi tech Development Zone, Jilin, Changchun, 130000

Patentee before: CHANGCHUN LESHI TECHNOLOGY CO.,LTD.

CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 054000 500 meters south of Changbaishan Road, Huagong Avenue, Qinghe County, Xingtai City, Hebei Province

Patentee after: Yirunbang Technology (Hebei) Co.,Ltd.

Address before: 300000 plant B08, No. 10 Yongfeng Road, high end Park, Beichen economic and Technological Development Zone, Beichen District, Tianjin

Patentee before: YIRUNBANG TECHNOLOGY (TIANJIN) CO.,LTD.