CN103967800A - Novel dissipative and resistive composite exhaust silencer and compressor with same - Google Patents
Novel dissipative and resistive composite exhaust silencer and compressor with same Download PDFInfo
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- CN103967800A CN103967800A CN201410211679.9A CN201410211679A CN103967800A CN 103967800 A CN103967800 A CN 103967800A CN 201410211679 A CN201410211679 A CN 201410211679A CN 103967800 A CN103967800 A CN 103967800A
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Abstract
The invention discloses a novel dissipative and resistive composite exhaust silencer which comprises a bottom plate. An upper silencing cover extends integrally upward from the bottom plate and a lower silencing cover is arranged in the upper silencing cover; an upper expanding room is arranged between the upper silencing cover and the lower silencing cover, and is filled with a dissipative silencing material layer; a lower exhaust hole is formed in the lower silencing cover, the upper silencing cover is provided with an upper exhaust hole, and the dissipative silencing material layer is internally provided with an exhaust channel communicated with the upper and lower exhaust holes. By adopting the innovative design of the double silencing covers and filling the upper expanding room between the double silencing covers with the dissipative silencing material layer as well as combining dissipative and resistive silencing, the silencing frequency band is expanded, so that the operating noise of a compressor is reduced. In addition, by virtue of the innovative design of the double silencing covers, the structure of the exhaust holes can be further improved to achieve an excellent silencing effect.
Description
Technical field
The present invention relates to a kind of baffler, be specifically related to the novel impedance composite baffler on a kind of application and compressor.
The invention still further relates to a kind of compressor that adopts above-mentioned novel impedance composite baffler.
Background technique
Existing compressor generally forms (as shown in Figure 1) by compressor case 1, compressing mechanism (pump housing) 2, stator 3, rotor 4 and liquid-storage container 5, and wherein compressing mechanism 2 mainly forms (as shown in Fig. 2,3 and 4) by cylinder 21, piston 22, upper bearing (metal) 23, bent axle 24, lower bearing 25, slide block 26, spring 27 and baffler 20`.Wherein, in the middle of upper bearing (metal) 23 tops, be provided with the Upper shaft sleeve 231 of epirelief, and described baffler 20` is a thin-walled cover body, it has a base plate 201`, described base plate 201` upwards one extends a cascade noise reduction lid 208`, described cascade noise reduction is covered with the axis hole 207` coordinating with Upper shaft sleeve 231, the base plate 201` of baffler 20` is connected by bolt 6 with upper bearing (metal) 23, in cascade noise reduction lid 208`, be individual layer expansion chamber 209`, and cascade noise reduction lid 208` is provided with relief opening 202`, the gas of being discharged by upper bearing (metal) relief opening is carried out to noise is low to be subtracted, play the effect of resistant noise-reducing.
Silencing apparatus is a kind of in allowing air-flow to pass through, and can effectively stop or weaken again the device that acoustic energy is outwards propagated.
At present, to use the baffler being made up of individual layer expansion chamber be typical resistive muffler principle to rotary compressor.Resistance baffler principle: the pipeline section or the side that connect sectional area sudden change in exhaust passage connect resonant cavity, utilize the change of acoustic impedance, the phenomenons such as launch at the interface that the sound wave of some frequency is suddenlyd change in acoustic resistance, interference, thus in the outside of baffler, reach the object of noise reduction.The form realizing has: expansion chamber, resonant cavity type, interfere type.Muffler in the tradition rotary compressor pump housing adopts the resistant noise-reducing device of expansion chamber.There is following problem in it: 1) existing this baffler is a kind of resistant noise-reducing device, and it has good low frequency noise reduction characteristic; 2) but noise reduction frequency band is narrow, poor to medium-high frequency erasure effect.Existing industry is except being widely used resistive muffler in blower fan, gas turbine.Resistive muffler principle: resistive material is fixed on to air-flow path inwall or lines up in passage according to a certain method, and with Electrical analogy, sound-absorbing material material is equivalent to resistance, therefore be called resistive muffler.Resistive muffler can noise reduction within the scope of wider medium-high frequency, particularly high frequency audio is had to outstanding erasure effect, but the muffler structure of existing individual layer expansion chamber cannot be realized resistive noise reduction, therefore cannot realize resistant noise-reducing and combine with resistive noise reduction, the baffler of individual layer expansion chamber is not ideal enough in erasure effect.
Summary of the invention
The object of the invention is to for the problems referred to above deficiency, a kind of impedance composite muffler that simultaneously possesses resistant noise-reducing and resistive erasure effect is provided, it adopts brand-new structure that resistant noise-reducing and resistive noise reduction are combined, and makes baffler possess the erasure effect of full rate section.
In order to achieve the above object, the present invention is by the following technical solutions:
Novel impedance composite muffler, comprises a base plate, and this base plate is for being fixed on the upper bearing (metal) of compressor, and described base plate upwards one extends a upper strata noise reduction lid, in described upper strata noise reduction lid, is provided with lower floor's noise reduction lid; In this lower floor's noise reduction lid, set a layer expansion chamber, and be upper strata expansion chamber between lower floor's noise reduction lid and upper strata noise reduction lid, in the expansion chamber of described upper strata, fill resistive quieter material layer; The middle part of described lower floor noise reduction lid, resistive quieter material layer and upper strata noise reduction lid is provided with the axis hole suitable with the Upper shaft sleeve of upper bearing (metal); The noise reduction of described lower floor is covered with the lower exhaust port communicating with lower floor expansion chamber, and the noise reduction of described upper strata is covered with upper air-vent, and is provided with the exhaust passage communicating with lower exhaust port and upper air-vent in described resistive quieter material layer.
Particularly, described resistive quieter material layer is the resistive quieter material layer of glass fibre, or is the resistive quieter material layer of low carbon steel silk screen, or is resistive quieter material layer.
Further concrete, described upper strata expansion chamber arranges opening at axis hole place, and the logical resistive quieter material layer sealing of this opening; Or described upper strata expansion chamber is upwards extended sealing at axis hole place by lower floor's noise reduction lid.
Preferably, described lower exhaust port is vertical coaxial setting with upper air-vent, or for shifting to install; Described exhaust passage is direct exhaust passage, or is the roundabout exhaust passage of S type.
Further preferably, the diameter of described lower exhaust port is greater than upper air-vent.
The present invention also provides a kind of compressor that adopts above-mentioned silencing apparatus, and concrete technological scheme is as follows:
A kind of compressor with novel impedance composite muffler, it comprises compressing mechanism, described compressing mechanism has a upper bearing (metal), on this upper bearing (metal), be connected with an impedance composite muffler, this baffler has a base plate, described base plate is fixed on upper bearing (metal) by fastening piece, and described base plate upwards one extends a upper strata noise reduction lid, in described upper strata noise reduction lid, is provided with lower floor's noise reduction lid; In this lower floor's noise reduction lid, set a layer expansion chamber, and be upper strata expansion chamber between lower floor's noise reduction lid and upper strata noise reduction lid, in the expansion chamber of described upper strata, fill resistive quieter material layer; The middle part of described lower floor noise reduction lid, resistive quieter material layer and upper strata noise reduction lid is provided with the axis hole suitable with the Upper shaft sleeve of upper bearing (metal); The noise reduction of described lower floor is covered with the lower exhaust port communicating with lower floor expansion chamber, and the noise reduction of described upper strata is covered with upper air-vent, and is provided with the exhaust passage communicating with lower exhaust port and upper air-vent in described resistive quieter material layer.
Particularly, described resistive quieter material layer is the resistive quieter material layer of glass fibre, or is the resistive quieter material layer of low carbon steel silk screen, or is the resistive quieter material layer of felt.
Further concrete, described upper strata expansion chamber arranges opening at axis hole place, and the logical resistive quieter material layer sealing of this opening; Or described upper strata expansion chamber is upwards extended sealing at axis hole place by lower floor's noise reduction lid.
Preferably, described lower exhaust port is vertical coaxial setting with upper air-vent, or for shifting to install; Described exhaust passage is direct exhaust passage, or is the roundabout exhaust passage of S type.
Further preferably, the diameter of described lower exhaust port is greater than upper air-vent.
The present invention adopts above technological scheme, having overcome existing individual layer expansion chamber silencing apparatus can only resistant noise-reducing, and cannot be in conjunction with a difficult problem for resistive noise reduction, the present invention adopts the innovative design of double-deck noise reduction lid, and between double-deck noise reduction lid, be in the expansion chamber of upper strata, to fill resistive quieter material layer, resistant noise-reducing is combined with resistive noise reduction, widened the frequency band of noise reduction, compressor operating noise is effectively reduced; Separately, owing to adopting the innovative design of double-deck noise reduction lid, can further improve vent structure, realize more good erasure effect.
Brief description of the drawings
Fig. 1 is existing compressor arrangement schematic diagram.
Fig. 2 is the structure plan view of the existing baffler being made up of individual layer expansion chamber.
Fig. 3 is that the A-B of the existing baffler being made up of individual layer expansion chamber is to sectional view.
Fig. 4 is that the A-A of the existing baffler being made up of individual layer expansion chamber is to sectional view.
Fig. 5 is that the A-B of existing baffler and compressing mechanism mounting structure is to sectional view.
Fig. 6 is that the A-A of existing baffler and compressing mechanism mounting structure is to sectional view.
Fig. 7 is the compressor arrangement schematic diagram described in the embodiment of the present invention 1.
Fig. 8 is the structure plan view of baffler described in the embodiment of the present invention 1.
Fig. 9 a is that the C-D of baffler described in the embodiment of the present invention 1 is to sectional view.
The C-D that Fig. 9 b removes resistive quieter material layer for baffler described in the embodiment of the present invention 1 is to sectional view.
Figure 10 is that the C-C of baffler described in the embodiment of the present invention 1 is to sectional view.
Figure 11 is that the C-D of baffler and compressing mechanism mounting structure described in the embodiment of the present invention 1 is to sectional view.
Figure 12 is that the C-C of baffler and compressing mechanism mounting structure described in the embodiment of the present invention 1 is to sectional view.
Figure 13 is the muffler structure sectional view described in the embodiment of the present invention 2.
Figure 14 is the muffler structure sectional view described in the embodiment of the present invention 3.
Figure 15 is the muffler structure sectional view described in the embodiment of the present invention 4.
Figure 16 is the muffler structure sectional view described in the embodiment of the present invention 5.
Figure 17 is the muffler structure sectional view described in the embodiment of the present invention 6.
Embodiment
Embodiment 1
As shown in Fig. 7 to 12, the compressor with novel impedance composite muffler of the present invention, it comprises compressor case 1, compressing mechanism 2, stator 3, rotor 4 and liquid-storage container 5 (as shown in Figure 7), wherein compressing mechanism 2 is mainly made up of cylinder 21, piston 22, upper bearing (metal) 23, bent axle 24, lower bearing 25, slide block 26, spring and impedance composite muffler 20, wherein, in the middle of upper bearing (metal) 23 tops, be provided with the Upper shaft sleeve 231 of epirelief.
As shown in Fig. 8 to 12, on described upper bearing (metal) 23, connect impedance composite muffler 20, this baffler has a base plate 201, described base plate 201 is fixed on upper bearing (metal) 23 by fastening piece (bolt 6), described base plate 201 upwards one extends a upper strata noise reduction lid 202, in described upper strata noise reduction lid 202, be provided with lower floor's noise reduction lid 203, be specially, described lower floor noise reduction lid 203 is welded on the sidewall of upper strata noise reduction lid 202; In this lower floor's noise reduction lid 203, set layer expansion chamber 205, and be upper strata expansion chamber 206 between lower floor's noise reduction lid 203 and upper strata noise reduction lid 202, the resistive quieter material layer 204 of described upper strata expansion chamber 206 interior filling.The present invention is by adopting the innovative design of double-deck noise reduction lid, and between double-deck noise reduction lid, be in the expansion chamber of upper strata, to fill resistive quieter material layer, resistant noise-reducing is combined with resistive noise reduction, widen the frequency band of noise reduction, compressor operating noise is effectively reduced, having overcome existing individual layer expansion chamber silencing apparatus can only resistant noise-reducing, and noise reduction frequency band is narrow, cannot be in conjunction with a difficult problem for resistive noise reduction.
The middle part of described lower floor noise reduction lid 203, resistive quieter material layer 204 and upper strata noise reduction lid 202 is provided with the axis hole 207 suitable with the Upper shaft sleeve of upper bearing (metal).
Described lower floor noise reduction lid 203 is provided with the lower exhaust port 2031 communicating with lower floor expansion chamber 205, described upper strata noise reduction lid 202 is provided with upper air-vent 2021, and in described resistive quieter material layer 204, be provided with the exhaust passage 2041 communicating with lower exhaust port 2031 and upper air-vent 2021, further, described lower exhaust port 2031 is vertical coaxial setting with upper air-vent 2021, and the diameter of described lower exhaust port 2031 and upper air-vent 2021 equal diameters, exhaust passage 2041 is direct exhaust passage, is specially vertical straight exhaust passage.
Particularly, described resistive quieter material layer 204 is the resistive quieter material layer of glass fibre, or is the resistive quieter material layer of low carbon steel silk screen, or is the resistive quieter material layer of felt.
Further concrete, described upper strata expansion chamber 206 arranges opening 2061 and (see Fig. 9 b), and the logical resistive quieter material layer 204 of this opening seals and (sees Fig. 9 a) at axis hole 207 places; Or described upper strata expansion chamber 206 is upwards extended sealing (not drawing schematic diagram) at axis hole place by lower floor's noise reduction lid 203, i.e. lower floor's noise reduction lid 203 extends upwardly to upper strata noise reduction lid 203, upper strata expansion chamber 206 is sealed at axis hole 207 places.
Compressor of the present invention in the course of the work, the gaseous coolant of High Temperature High Pressure is from upper bearing (metal) relief opening is discharged, first, enter lower floor's expansion chamber 205 of lower floor's noise reduction lid, carry out noise reduction for the first time, thereafter, enter the exhaust passage in resistive quieter material layer 204 in upper strata expansion chamber 206 by lower relief opening, 204 pairs of gaseous coolant of resistive quieter material layer carry out the resistive noise reduction of secondary, last gaseous coolant is discharged via the upper relief opening 2021 of upper strata noise reduction lid 202, through resistant noise-reducing and the resistive noise reduction of above-mentioned priority, widen the frequency band of noise reduction, thereby compressor noise is well suppressed.
Embodiment 2
As shown in figure 13, the impedance composite muffler 20 described in the present embodiment, it has a base plate 201, and described base plate 201 upwards one extends a upper strata noise reduction lid 202, in described upper strata noise reduction lid 202, is provided with lower floor's noise reduction lid 203; In this lower floor's noise reduction lid 203, set layer expansion chamber 205, and be upper strata expansion chamber 206 between lower floor's noise reduction lid 203 and upper strata noise reduction lid 202, the resistive quieter material layer 204 of described upper strata expansion chamber 206 interior filling.The middle part of described lower floor noise reduction lid 203, resistive quieter material layer 204 and upper strata noise reduction lid 202 is provided with the axis hole 207 suitable with the Upper shaft sleeve of upper bearing (metal).
Described lower floor noise reduction lid 203 is provided with the lower exhaust port 2031 communicating with lower floor expansion chamber 205, described upper strata noise reduction lid 202 is provided with upper air-vent 2021, and is provided with the exhaust passage 2041 communicating with lower exhaust port 2031 and upper air-vent 2021 in described resistive quieter material layer 204.
Further, described lower exhaust port 2031 is vertical coaxial setting with upper air-vent 2021, the present embodiment is that from embodiment 1 muffler structure difference exhaust structure is different, be specially: the diameter of described lower exhaust port 2031 is greater than upper air-vent 2021 diameters, exhaust passage 2041 is direct exhaust passage, and its cross section is lower large little trapezoid shaped.And the diameter of embodiment 1 lower exhaust port 2031 and upper air-vent 2021 equal diameters.
In the present embodiment, the diameter of lower exhaust port 2031 is greater than upper air-vent 2021 diameters, making gaseous coolant enter osculum by large mouth flows out, and increase the resistive material noise reduction area of exhaust passage 2041, by changing size and the position of upper and lower expansion chamber sectional area, sudden change, reach the object of eliminating different frequency sound wave, be conducive to the absorption of noise.
Described in the present embodiment, other structure of impedance composite muffler 20 please refer to embodiment 1.
Embodiment 3
As shown in figure 14, the impedance composite muffler 20 described in the present embodiment, it has a base plate 201, and described base plate 201 upwards one extends a upper strata noise reduction lid 202, in described upper strata noise reduction lid 202, is provided with lower floor's noise reduction lid 203; In this lower floor's noise reduction lid 203, set layer expansion chamber 205, and be upper strata expansion chamber 206 between lower floor's noise reduction lid and upper strata noise reduction lid, in the expansion chamber of described upper strata, fill resistive quieter material layer 204.The middle part of described lower floor noise reduction lid 203, resistive quieter material layer 204 and upper strata noise reduction lid 202 is provided with the axis hole 207 suitable with the Upper shaft sleeve of upper bearing (metal).
Described lower floor noise reduction lid 203 is provided with the lower exhaust port 2031 communicating with lower floor expansion chamber 205, described upper strata noise reduction lid 202 is provided with upper air-vent 2021, and is provided with the exhaust passage 2041 communicating with lower exhaust port 2031 and upper air-vent 2021 in described resistive quieter material layer 204.
Further, the present embodiment is that from embodiment 1 muffler structure difference exhaust structure is different, be specially: described lower exhaust port 2031 and upper air-vent 2021 are for shifting to install, the diameter of described lower exhaust port 2031 equals upper air-vent 2021 diameters, and exhaust passage 2041 is the roundabout exhaust passage of S type.And embodiment 1 lower exhaust port 2031 is vertical coaxial setting with upper air-vent 2021, and exhaust passage 2041 is direct exhaust passage.
In the present embodiment, lower exhaust port 2031 and upper air-vent 2021 are for shifting to install, exhaust passage 2041 is the roundabout exhaust passage of S type, its roundabout exhaust passage of S type has increased the discharge distance that makes gaseous coolant, and increase the resistive material noise reduction area of exhaust passage 2041, be conducive to the absorption of noise, simultaneously upper and lower exhaust port shifts to install and makes noise can not lead directly to discharge, the intensity that further weakens noise, the structure of the roundabout exhaust passage of S type further promotes the assimilation effect of noise than embodiment 1 direct exhaust passage.
Described in the present embodiment, other structure of impedance composite muffler 20 please refer to embodiment 1.
Embodiment 4
As shown in figure 15, the impedance composite muffler 20 described in the present embodiment, it has a base plate 201, and described base plate 201 upwards one extends a upper strata noise reduction lid 202, in described upper strata noise reduction lid 202, is provided with lower floor's noise reduction lid 203; In this lower floor's noise reduction lid 203, set layer expansion chamber 205, and be upper strata expansion chamber 206 between lower floor's noise reduction lid and upper strata noise reduction lid, in the expansion chamber of described upper strata, fill resistive quieter material layer 204.The middle part of described lower floor noise reduction lid 203, resistive quieter material layer 204 and upper strata noise reduction lid 202 is provided with the axis hole 207 suitable with the Upper shaft sleeve of upper bearing (metal).
Described lower floor noise reduction lid 203 is provided with the lower exhaust port 2031 communicating with lower floor expansion chamber 205, described upper strata noise reduction lid 202 is provided with upper air-vent 2021, and is provided with the exhaust passage 2041 communicating with lower exhaust port 2031 and upper air-vent 2021 in described resistive quieter material layer 204.
The present embodiment is on embodiment 3 basis, exhaust passage to be further improved, be specially: described lower exhaust port 2031 and upper air-vent 2021 are for shifting to install, the diameter of described lower exhaust port 2031 is greater than upper air-vent 2021 diameters, and exhaust passage 2041 is the roundabout exhaust passage of S type.And embodiment 3 exhaust passage 2041 is also the roundabout exhaust passage of S type, but the diameter of embodiment 3 lower exhaust port 2031 equals upper air-vent 2021 diameters.The diameter that the present embodiment further arranges lower exhaust port 2031 on the basis of the roundabout exhaust passage of embodiment 3 S type is greater than upper air-vent 2021 diameters, making gaseous coolant enter osculum by large mouth flows out, by changing size and the position of upper and lower expansion chamber sectional area, sudden change, reach the object of eliminating different frequency sound wave, further promote the assimilation effect to noise.
Described in the present embodiment, other structure of impedance composite muffler 20 please refer to embodiment 1.
Embodiment 5
As shown in figure 16, the impedance composite muffler 20 described in the present embodiment, this baffler has a base plate 201, and described base plate 201 upwards one extends a upper strata noise reduction lid 202, in described upper strata noise reduction lid 202, is provided with lower floor's noise reduction lid 203; In this lower floor's noise reduction lid 203, set layer expansion chamber 205, and be upper strata expansion chamber 206 between lower floor's noise reduction lid and upper strata noise reduction lid, in the expansion chamber of described upper strata, fill resistive quieter material layer 204.The middle part of described lower floor noise reduction lid 203, resistive quieter material layer 204 and upper strata noise reduction lid 202 is provided with the axis hole 207 suitable with the Upper shaft sleeve of upper bearing (metal).
Described lower floor noise reduction lid 203 is provided with the lower exhaust port 2031 communicating with lower floor expansion chamber 205, described upper strata noise reduction lid 202 is provided with upper air-vent 2021, and is provided with the exhaust passage 2041 communicating with lower exhaust port 2031 and upper air-vent 2021 in described resistive quieter material layer 204.
Further, the present embodiment is that from embodiment 1 muffler structure difference exhaust structure is different, be specially: described lower exhaust port 2031 and upper air-vent 2021 are for shifting to install, the diameter of described lower exhaust port 2031 equals upper air-vent 2021 diameters, exhaust passage 2041 is direct exhaust passage, is specially oblique direct exhaust passage.And embodiment 1 lower exhaust port 2031 is vertical coaxial setting with upper air-vent 2021, and exhaust passage 2041 is vertical straight exhaust passage.
In the present embodiment, lower exhaust port 2031 and upper air-vent 2021 are for shifting to install, exhaust passage 2041 is oblique direct exhaust passage, its oblique direct exhaust passage has increased the discharge distance that makes gaseous coolant, and increase the resistive material noise reduction area of exhaust passage 2041, be conducive to the absorption of noise, simultaneously upper and lower exhaust port shifts to install and makes noise can not lead directly to discharge, further weakens the intensity of noise.
Described in the present embodiment, other structure of impedance composite muffler 20 please refer to embodiment 1.
Embodiment 6
As shown in figure 17, the impedance composite muffler 20 described in the present embodiment, this baffler has a base plate 201, and described base plate 201 upwards one extends a upper strata noise reduction lid 202, in described upper strata noise reduction lid 202, is provided with lower floor's noise reduction lid 203; In this lower floor's noise reduction lid 203, set layer expansion chamber 205, and be upper strata expansion chamber 206 between lower floor's noise reduction lid and upper strata noise reduction lid, in the expansion chamber of described upper strata, fill resistive quieter material layer 204.The middle part of described lower floor noise reduction lid 203, resistive quieter material layer 204 and upper strata noise reduction lid 202 is provided with the axis hole 207 suitable with the Upper shaft sleeve of upper bearing (metal).
Described lower floor noise reduction lid 203 is provided with the lower exhaust port 2031 communicating with lower floor expansion chamber 205, described upper strata noise reduction lid 202 is provided with upper air-vent 2021, and is provided with the exhaust passage 2041 communicating with lower exhaust port 2031 and upper air-vent 2021 in described resistive quieter material layer 204.
Further, the present embodiment is on embodiment 5 basis, exhaust passage to be further improved, be specially: described lower exhaust port 2031 and upper air-vent 2021 are for shifting to install, the diameter of described lower exhaust port 2031 is greater than upper air-vent 2021 diameters, exhaust passage 2041 is direct exhaust passage, is specially oblique direct exhaust passage.And embodiment 5 exhaust passage 2041 is also oblique direct exhaust passage, but the diameter of embodiment 5 lower exhaust port 2031 equals upper air-vent 2021 diameters.The diameter that the present embodiment further arranges lower exhaust port 2031 on the basis of oblique direct exhaust passage of the embodiment 5 is greater than upper air-vent 2021 diameters, making gaseous coolant enter osculum by large mouth flows out, by changing size and the position of upper and lower expansion chamber sectional area, sudden change, reach the object of eliminating different frequency sound wave, further promote the assimilation effect to noise.
Described in the present embodiment, other structure of impedance composite muffler 20 please refer to embodiment 1.
The present invention adopts above technological scheme, having overcome existing individual layer expansion chamber silencing apparatus can only resistant noise-reducing, and cannot be in conjunction with a difficult problem for resistive noise reduction, the present invention adopts the innovative design of double-deck noise reduction lid, and between double-deck noise reduction lid, be in the expansion chamber of upper strata, to fill resistive quieter material layer, resistant noise-reducing is combined with resistive noise reduction, widened the frequency band of noise reduction, compressor operating noise is effectively reduced; Separately, owing to adopting the innovative design of double-deck noise reduction lid, can further improve vent structure, can realize shifting to install and the different pore size of upper and lower exhaust port of upper and lower exhaust port, realize more good erasure effect.
Claims (10)
1. novel impedance composite muffler, comprises a base plate, and this base plate is used for being fixed on the upper bearing (metal) of compressor, it is characterized in that, described base plate upwards one extends a upper strata noise reduction lid, in described upper strata noise reduction lid, is provided with lower floor's noise reduction lid; In this lower floor's noise reduction lid, set a layer expansion chamber, and be upper strata expansion chamber between lower floor's noise reduction lid and upper strata noise reduction lid, in the expansion chamber of described upper strata, fill resistive quieter material layer; The middle part of described lower floor noise reduction lid, resistive quieter material layer and upper strata noise reduction lid is provided with the axis hole suitable with the Upper shaft sleeve of upper bearing (metal); The noise reduction of described lower floor is covered with the lower exhaust port communicating with lower floor expansion chamber, and the noise reduction of described upper strata is covered with upper air-vent, and is provided with the exhaust passage communicating with lower exhaust port and upper air-vent in described resistive quieter material layer.
2. novel impedance composite muffler according to claim 1, is characterized in that, described resistive quieter material layer is the resistive quieter material layer of glass fibre, or is the resistive quieter material layer of low carbon steel silk screen, or is the resistive quieter material layer of felt.
3. novel impedance composite muffler according to claim 1, is characterized in that, described upper strata expansion chamber arranges opening at axis hole place, and the logical resistive quieter material layer sealing of this opening; Or described upper strata expansion chamber is upwards extended sealing at axis hole place by lower floor's noise reduction lid.
4. the novel impedance composite muffler of stating according to claim 1 felt, is characterized in that, described lower exhaust port is vertical coaxial setting with upper air-vent, or for shifting to install; Described exhaust passage is direct exhaust passage, or is the roundabout exhaust passage of S type.
5. novel impedance composite muffler according to claim 5, is characterized in that, the diameter of described lower exhaust port is greater than upper air-vent.
6. one kind has the compressor of novel impedance composite muffler, it comprises compressing mechanism, described compressing mechanism has a upper bearing (metal), it is characterized in that: on described upper bearing (metal), be connected with an impedance composite muffler, this baffler has a base plate, described base plate is fixed on upper bearing (metal) by fastening piece, and described base plate upwards one extends a upper strata noise reduction lid, in described upper strata noise reduction lid, is provided with lower floor's noise reduction lid; In this lower floor's noise reduction lid, set a layer expansion chamber, and be upper strata expansion chamber between lower floor's noise reduction lid and upper strata noise reduction lid, in the expansion chamber of described upper strata, fill resistive quieter material layer; The middle part of described lower floor noise reduction lid, resistive quieter material layer and upper strata noise reduction lid is provided with the axis hole suitable with the Upper shaft sleeve of upper bearing (metal); The noise reduction of described lower floor is covered with the lower exhaust port communicating with lower floor expansion chamber, and the noise reduction of described upper strata is covered with upper air-vent, and is provided with the exhaust passage communicating with lower exhaust port and upper air-vent in described resistive quieter material layer.
7. novel impedance composite muffler according to claim 6, is characterized in that, described resistive quieter material layer is the resistive quieter material layer of glass fibre, or is the resistive quieter material layer of low carbon steel silk screen, or is the resistive quieter material layer of felt.
8. novel impedance composite muffler according to claim 6, is characterized in that, described upper strata expansion chamber arranges opening at axis hole place, and the logical resistive quieter material layer sealing of this opening; Or described upper strata expansion chamber is upwards extended sealing at axis hole place by lower floor's noise reduction lid.
9. the novel impedance composite muffler of stating according to claim 6 felt, is characterized in that, described lower exhaust port is vertical coaxial setting with upper air-vent, or for shifting to install; Described exhaust passage is direct exhaust passage, or is the roundabout exhaust passage of S type.
10. novel impedance composite muffler according to claim 9, is characterized in that, the diameter of described lower exhaust port is greater than upper air-vent.
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| CN201410211679.9A CN103967800B (en) | 2014-05-19 | 2014-05-19 | Impedance composite muffler and there is the compressor of this muffler |
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| CN201410211679.9A CN103967800B (en) | 2014-05-19 | 2014-05-19 | Impedance composite muffler and there is the compressor of this muffler |
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| CN103967800B CN103967800B (en) | 2016-08-24 |
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| CN105221433A (en) * | 2015-10-22 | 2016-01-06 | 安徽美芝精密制造有限公司 | Baffler and there is its rotary compressor |
| CN106050609A (en) * | 2016-05-31 | 2016-10-26 | 芜湖卓越空调零部件有限公司 | Bearing silencer for compressor |
| CN106438500A (en) * | 2015-08-06 | 2017-02-22 | 中国科学院声学研究所 | Silencing device for intake port sound source of fan |
| CN106762670A (en) * | 2017-01-24 | 2017-05-31 | 广东美芝制冷设备有限公司 | Compressor, refrigeration system and automobile |
| CN107614881A (en) * | 2015-10-27 | 2018-01-19 | 三菱重工制冷空调***株式会社 | Rotary compressor |
| CN116838612A (en) * | 2023-06-29 | 2023-10-03 | 嵊州市新起点焊接科技有限公司 | Compressor amortization subassembly and automatic assembly equipment thereof |
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| CN103511283A (en) * | 2013-02-05 | 2014-01-15 | 安徽美芝精密制造有限公司 | Silencer of compressor and compressor provided with same |
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| JP2000018184A (en) * | 1998-06-30 | 2000-01-18 | Toshiba Corp | Rotary compressor |
| CN1420280A (en) * | 2001-11-19 | 2003-05-28 | 乐金电子(天津)电器有限公司 | Silencer of rotary compressor |
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| CN2692382Y (en) * | 2004-03-17 | 2005-04-13 | 上海日立电器有限公司 | Bilayer dual expanding noise suppressor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438500A (en) * | 2015-08-06 | 2017-02-22 | 中国科学院声学研究所 | Silencing device for intake port sound source of fan |
| CN106438500B (en) * | 2015-08-06 | 2019-01-08 | 中国科学院声学研究所 | A kind of silencing apparatus of the air inlet mouth source for blower |
| CN105221433A (en) * | 2015-10-22 | 2016-01-06 | 安徽美芝精密制造有限公司 | Baffler and there is its rotary compressor |
| CN105221433B (en) * | 2015-10-22 | 2017-11-07 | 安徽美芝精密制造有限公司 | Muffler and the rotary compressor with it |
| CN107614881A (en) * | 2015-10-27 | 2018-01-19 | 三菱重工制冷空调***株式会社 | Rotary compressor |
| CN106050609A (en) * | 2016-05-31 | 2016-10-26 | 芜湖卓越空调零部件有限公司 | Bearing silencer for compressor |
| CN106762670A (en) * | 2017-01-24 | 2017-05-31 | 广东美芝制冷设备有限公司 | Compressor, refrigeration system and automobile |
| CN116838612A (en) * | 2023-06-29 | 2023-10-03 | 嵊州市新起点焊接科技有限公司 | Compressor amortization subassembly and automatic assembly equipment thereof |
| CN116838612B (en) * | 2023-06-29 | 2024-05-17 | 嵊州市新起点焊接科技有限公司 | Compressor amortization subassembly and automatic assembly equipment thereof |
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| CN103967800B (en) | 2016-08-24 |
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