CN104005960A - Silencer and air conditioner with silencer - Google Patents
Silencer and air conditioner with silencer Download PDFInfo
- Publication number
- CN104005960A CN104005960A CN201410222158.3A CN201410222158A CN104005960A CN 104005960 A CN104005960 A CN 104005960A CN 201410222158 A CN201410222158 A CN 201410222158A CN 104005960 A CN104005960 A CN 104005960A
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- silencing apparatus
- expansion cavity
- outlet pipe
- steam outlet
- suction tude
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Abstract
The invention discloses a silencer and an air conditioner with the silencer. The silencer comprises an expansion shell, an air inlet pipe and an air outlet pipe, wherein an expansion cavity is defined in the expansion shell; one end of the air inlet pipe is inserted from the first side wall of the expansion cavity into the expansion cavity; one end of the air outlet pipe is inserted from the second side wall opposite to the first side wall into the expansion cavity; the central line of the air outlet pipe and the central line of the air inlet pipe are respectively distributed on two sides of the central line of the expansion cavity. According to the silencer, the air inlet pipe and the air outlet pipe are inserted into the first side wall and the second side wall, which are opposite to each other, of the expansion cavity, because the section of an airflow circulation channel is suddenly changed, the acoustic impedance mismatching is generated, and abnormal noise transmitted from an outdoor unit of the air conditioner to an indoor unit is reduced. Meanwhile, the central line of the air inlet pipe and the central line of the air outlet pipe are respectively distributed on the two sides of the central line of the expansion cavity, and the length of the airflow circulation channel is prolonged, so that disordered airflow is relatively smooth, and the noise generated by the disordered airflow is further reduced.
Description
Technical field
The present invention relates to refrigerating field, especially relate to a kind of silencing apparatus and there is its air conditioner.
Background technique
The pulse pneumatic noise of rotor type compressor of air conditioner is very easy to reach indoor set by air conditioner piping, and particularly particularly evident when heating condition, this different voice frequency is 20Hz-500Hz substantially, and the roars of laughter roars of laughter sound of this medium and low frequency is very easy to allow people vexed.For subduing the different sound of air condition compressor gas, reach indoor set, generally at air-conditioning four-way valve parts, add silencing apparatus, it utilizes unexpected expansion, contraction or the side of pipeline section to connect resonant cavity, produce acoustic impedance mismatch, the phenomenons such as the sound wave that makes some frequency reflects in the interface of acoustic impedance sudden change, interference, thus reach the object of noise elimination.
Silencing apparatus in correlation technique adopts the series connection of more piece expanding duct or the series connection of a plurality of cavity, by adjusting interpolation pipe, insert the degree of depth in expanding duct, can avoid by the acoustic attenuation performance of frequency shift silencing apparatus, but there is complex structure, pressure loss is large, cost of production is high shortcoming in this silencing apparatus.
Summary of the invention
The present invention is intended to solve at least to a certain extent one of technical problem in correlation technique.
For this reason, one object of the present invention is to propose a kind of simple in structure, silencing apparatus that sound deadening capacity is large.
Another object of the present invention is to propose a kind of air conditioner with above-mentioned silencing apparatus.
A kind of silencing apparatus is provided according to an aspect of the present invention, has comprised: expansion shell, has limited expansion cavity in described expansion shell; Suction tude, one end of described suction tude is inserted in described expansion cavity from the first side wall of described expansion cavity; Steam outlet pipe, one end of described steam outlet pipe is inserted in described expansion cavity from the second sidewall relative with described the first side wall, and the center line of wherein said steam outlet pipe and the center line of described suction tude are distributed in respectively the both sides of the center line of described expansion cavity.
According to the silencing apparatus of the embodiment of the present invention, by be inserted into tracheae and steam outlet pipe on the relative the first side wall of expansion cavity and the second sidewall, air-flow is in flow process, because the cross section of air flow passage changes suddenly, produced acoustic impedance mismatch, the section generation reflex that sound wave in characteristic frequency section is suddenlyd change in acoustic impedance, has subdued the different sound that is reached indoor set by air conditioner outdoor machine.Simultaneously, the center line of suction tude and the center line of steam outlet pipe are distributed in respectively the both sides of the center line of expansion cavity, extended the length of air flow passage, and changed the direction of air current flow, reduced the flowing velocity of air-flow, make disorderly air-flow become milder, and then reduced the noise that disorderly air-flow produces.
In addition, silencing apparatus according to the above embodiment of the present invention can also have following additional technical characteristics:
According to one embodiment of present invention, the length of the part that is positioned at described expansion cavity of described suction tude and the ratio d1 of the length of described expansion cavity meet following 0.5≤d1≤0.75 that is related to.Thus, extend the length of air flow passage, reduced the flowing velocity of air-flow, made disorderly air-flow become milder, and then reduced the noise that disorderly air-flow produces.
According to one embodiment of present invention, the length of the part that is positioned at described expansion cavity of described steam outlet pipe and the ratio d2 of the length of described expansion cavity meet following 0.5≤d2≤0.75 that is related to.Thus, extend the length of air flow passage, reduced the flowing velocity of air-flow, made disorderly air-flow become milder, and then reduced the noise that disorderly air-flow produces.
According to an example of the present invention, the cross section of described expansion cavity forms circle.Thus, simplify the structure of silencing apparatus, reduced the pressure loss of air-flow, reduced the cost of production of silencing apparatus.
Particularly, the ratio range of the diameter of described expansion cavity and the diameter of described suction tude is 2-5, the ratio range of the diameter of described expansion cavity and the diameter of described steam outlet pipe is 2-5, and the span of the diameter of described steam outlet pipe and/or described suction tude is 5mm-16mm.
According to another example of the present invention, the cross section of described expansion cavity forms oval shape.Thus, can reduce the shared space of silencing apparatus, expand the Applicable scope of silencing apparatus.
Preferably, described steam outlet pipe, described suction tude and described expansion shell are respectively copper part or stainless steel part.The silencing apparatus decay resistance of being made by stainless steel is strong, and soundproof effect is good, cheap, has extended thus the working life of silencing apparatus, has reduced cost of production.
A kind of air conditioner is provided according to another aspect of the present invention, has comprised: compressor, described compressor has relief opening and gas returning port; Four-way valve, described four-way valve comprises first to fourth valve port, and described the first valve port is connected with described relief opening, and described the 4th valve port is connected with described gas returning port, and described the second valve port is connected with low pressure valve; Silencing apparatus, described silencing apparatus is silencing apparatus as above, described silencing apparatus is connected between described the first valve port and described relief opening, or described silencing apparatus is connected between described the 4th valve port and described gas returning port, or described silencing apparatus is connected between described the second valve port and described low pressure valve.
According to the air conditioner of the embodiment of the present invention, by be inserted into tracheae and steam outlet pipe on the relative the first side wall of expansion cavity and the second sidewall, air-flow is in flow process, because the cross section of air flow passage changes suddenly, produced acoustic impedance mismatch, the section generation reflex that sound wave in characteristic frequency section is suddenlyd change in acoustic impedance, has subdued the different sound that is reached indoor set by air conditioner outdoor machine.Simultaneously, the center line of suction tude and the center line of steam outlet pipe are distributed in respectively the both sides of the center line of expansion cavity, extended the length of air flow passage, and changed the direction of air current flow, reduced the flowing velocity of air-flow, make disorderly air-flow become milder, and then reduced the noise that disorderly air-flow produces.Thus, improve the muting function of air conditioner, promoted user satisfaction.
Accompanying drawing explanation
Fig. 1 is according to the structural representation of the silencing apparatus of the embodiment of the present invention 1;
Fig. 2 is the sectional drawing of the silencing apparatus in Fig. 1;
Fig. 3 is according to the sectional drawing of the silencing apparatus of the embodiment of the present invention 2;
Fig. 4 is according to the structural representation of the silencing apparatus of the embodiment of the present invention 3;
Fig. 5 is silencing apparatus and the expansion silencing apparatus noise elimination curve comparison figure in Fig. 1, X-axis represents noise frequency (Hz), Y-axis silencing apparatus sound deadening capacity (dB), line curve is the silencing apparatus noise elimination plotted curve in embodiment 1, dot and dash line is the noise elimination curve of expansion silencing apparatus.
Reference character:
Silencing apparatus 100,
Expansion shell 10, expansion cavity 11, the first side wall 12, the second sidewalls 13,
Suction tude 20, steam outlet pipe 30.
Embodiment
Describe embodiments of the invention below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment who is described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
Below with reference to Fig. 1-Fig. 4, describe in detail according to the silencing apparatus 100 of the embodiment of the present invention, this silencing apparatus 100 can be assemblied on air conditioner (schemes not shown).Particularly, air conditioner comprises indoor set (scheming not shown) and outdoor unit (scheming not shown), silencing apparatus 100 is assemblied on outdoor unit, the different sound producing in order to the pulsation of subduing by the compressor of outdoor unit, thus prevented that different sound is passed to indoor set by outdoor unit.
As shown in Figure 1, the silencing apparatus 100 according to the embodiment of the present invention, comprising: expansion shell 10, suction tude 20 and steam outlet pipe 30.
Particularly, in expansion shell 10, limit expansion cavity 11, one end of suction tude 20 is inserted in expansion cavity 11 from the first side wall 12 of expansion cavity 11, can utilize thus the unexpected expansion in the cross section of air flow passage, produce acoustic impedance mismatch, make the sound wave of some frequency, in the interface of acoustic impedance sudden change, reflex occur, thereby reach the object of noise elimination.One end of steam outlet pipe 30 is inserted in expansion cavity 11 from the second sidewall 13 relative with the first side wall 12.Particularly, the center line of the center line of steam outlet pipe 30 and suction tude 20 is distributed in respectively the both sides of the center line of expansion cavity 11.Preferably, the center line of the center line of steam outlet pipe 30, suction tude 20 and the center line of expansion cavity 11 are in the same plane.
As shown in Figure 1, air-flow is in suction tude 20 enters into expansion cavity 11 (as shown in Fig. 1 arrow a), first after roundabout 180 °, flow left (as shown in arrow b in Fig. 1), and then flow (as shown in arrow c in Fig. 1) to the right after roundabout through 180 °, finally by steam outlet pipe 30, discharged.It should be noted that, enter into air-flow in expansion cavity 11 after twice 180 ° roundabout, by steam outlet pipe 30, discharged again, thereby extended the length of air flow passage, and changed the direction of air current flow, reduce the flowing velocity of air-flow, made disorderly air-flow become milder, and then reduced the noise that disorderly air-flow produces.
According to the silencing apparatus 100 of the embodiment of the present invention, by be inserted into tracheae 20 and steam outlet pipe 30 on the relative the first side wall 12 of expansion cavity 11 and the second sidewall 13, air-flow is in flow process, because the cross section of air flow passage changes suddenly, produced acoustic impedance mismatch, the section generation reflex that sound wave in characteristic frequency section is suddenlyd change in acoustic impedance, thus subdued the different sound that outdoor unit produces, avoided different sound to be passed to indoor set by outdoor unit.Simultaneously, the center line of the center line of suction tude 20 and steam outlet pipe 30 is distributed in respectively the both sides of the center line of expansion cavity 11, extended the length of air flow passage, and changed the direction of air current flow, reduced the flowing velocity of air-flow, make disorderly air-flow become milder, and then reduced the noise that disorderly air-flow produces.
In an example of the present invention, the steam outlet pipe 30 of silencing apparatus 100, suction tude 20 and expansion shell 10 can be manufactured from the same material.Alternatively, steam outlet pipe 30, suction tude 20 and expansion shell 10 can be all copper part or stainless steel part.It should be noted that, silencing apparatus 100 decay resistances of being made by copper or stainless steel are strong, and soundproof effect is good, cheap, has extended thus the working life of silencing apparatus 100, has reduced cost of production.Be understandable that, the material of the steam outlet pipe 30 of silencing apparatus 100, suction tude 20 and expansion shell 10 is not limited to this, as long as its soundproof effect meets the usage requirement of air conditioner, the transportation demand that hardness meets air conditioner, for example silencing apparatus 100 can also be silencing apparatus made of aluminum or the silencing apparatus of being made by other hard materials.
The silencing apparatus 100 of several different embodiments according to the present invention is described below in conjunction with Fig. 1-Fig. 4.
Embodiment 1
As shown in Figure 1, the length of expansion cavity 11 can be expressed as L, and the length of the part that is positioned at expansion cavity 11 of suction tude 20 can be expressed as L1, and the length of the part that is positioned at expansion cavity 11 of steam outlet pipe 30 can be expressed as L2.In concrete examples more of the present invention, the length L 1 of the part that is positioned at expansion cavity 11 of suction tude 20 meets following 0.5≤d1≤0.75 that is related to, i.e. 0.5≤L1/L≤0.75 with the ratio d1 of the length L of expansion cavity 11; The length L 2 of the part that is positioned at expansion cavity 11 of steam outlet pipe 30 meets following 0.5≤d2≤0.75 that is related to, i.e. 0.5≤L2/L≤0.75 with the ratio d2 of the length L of expansion cavity 11.Thus, extend the length of air flow passage, reduced the flowing velocity of air-flow, made disorderly air-flow become milder, and then reduced the noise that disorderly air-flow produces.
As shown in Figure 2, in other concrete examples of the present invention, the cross section of expansion cavity 11 can form circle.Thus, simplify the structure of silencing apparatus, reduced stream pressure loss, reduced the cost of production of silencing apparatus.More specifically, the diameter D of expansion cavity 11, the diameter D1 of suction tude 20, the diameter D2 of steam outlet pipe 30, so, the ratio range of the diameter of the diameter of expansion cavity 11 and suction tude 20, steam outlet pipe 30 is 2-5, i.e. 2≤D/D1≤5,2≤D/D2≤5.The span of the diameter of steam outlet pipe 30 and/or suction tude 20 is 5mm-16mm, i.e. 5mm≤D1≤16mm and/or 5mm≤D2≤16mm.Thus, can by compressor air-discharging periodically low-frequency noise in the interior formation phase reflection of expansion cavity 11, thereby eliminating gas flow pulsation noise has more effectively reduced the different sound that is passed to indoor set by outdoor unit effectively.
With concrete numerical value, to the silencing apparatus of correlation technique with according to the soundproof effect of the silencing apparatus 100 of the embodiment of the present invention 1, compare explanation below, be worth understanding, following numerical value is example explanation, rather than to concrete restriction of the present invention.
Silencing apparatus in correlation technique is expansion silencing apparatus, and the diameter of suction tude, steam outlet pipe is 8mm, and the diameter of expansion cavity is 25mm, and the length of expansion cavity is 200mm.And suction tude 20, steam outlet pipe 30, the diameter of expansion cavity 11, the length of expansion cavity 11 of silencing apparatus 100 in inventive embodiments 1 are all the same with above-mentioned expansion silencing apparatus 100, suction tude 20 that different is, steam outlet pipe 30 are inserted in expansion cavity 11 in all, the length that suction tude 20 and steam outlet pipe 30 are positioned at expansion cavity 11 inside is 150mm, and the distance of the center line of suction tude 20, the center line of steam outlet pipe 30 and the center line of expansion cavity 11 is 6mm.Fig. 5 is the silencing apparatus 100 and expansion silencing apparatus noise elimination curve comparison figure in embodiment 1, and in figure, X-axis represents noise frequency (Hz), Y-axis silencing apparatus 100 sound deadening capacities (dB); Block curve is the silencing apparatus 100 noise elimination plotted curves in embodiment 1, and dot and dash line is the noise elimination curve of expansion silencing apparatus.
As shown in Figure 5, the sound deadening capacity of the silencing apparatus 100 in noise 50-500Hz frequency band embodiment 1 is larger than the sound deadening capacity of expansion silencing apparatus, if expansion silencing apparatus is 13.5dB at the sound deadening capacity of 180Hz, and the sound deadening capacity of silencing apparatus 100 in embodiment 1 is 22.7dB.
Embodiment 2
As shown in Figure 3, as different from Example 1, the cross section of expansion cavity 11 can also form ellipse.Oval-shaped expansion cavity has reduced the space that silencing apparatus 100 takies, and makes baffler go for the outdoor unit of different model.Thus, improved the versatility of silencing apparatus 100.
Embodiment 3
In this embodiment, the length of the part that is positioned at expansion cavity 11 of suction tude 20 or steam outlet pipe 30 as different from Example 1.In the example depicted in fig. 4, the length L 1 of the part that is positioned at expansion cavity 11 of suction tude 20 meets following 0.5≤d1≤0.75 that is related to the ratio d1 of the length L of expansion cavity 11, i.e. 0.5≤L1/L≤0.75, and be not specifically limited with the ratio of the length L of expansion cavity 11 for the length L 2 of the part that is positioned at expansion cavity 11 of steam outlet pipe 30.Thus, can by changing the length of the part that is positioned at expansion cavity 11 of steam outlet pipe 30, adjust maximum frequency of noise elimination as the case may be, the frequency of noise elimination of silencing apparatus 100 is dropped in the scope that meets the requirement of eliminating the noise.
Similarly, can also only to the length L 2 of the part that is positioned at expansion cavity 11 of steam outlet pipe 30, limit, and be not specifically limited for the length L 1 of the part that is positioned at expansion cavity 11 of suction tude 20, it can bring same beneficial effect.
According to the air conditioner of the embodiment of the present invention (scheming not shown), comprising: compressor (scheming not shown), four-way valve (scheming not shown) and silencing apparatus 100.It should be noted that, air conditioner comprises indoor set and outdoor unit, and baffler is assemblied on outdoor unit.
Particularly, compressor has relief opening (scheming not shown) and gas returning port (scheming not shown).Four-way valve comprises first to fourth valve port, and the first valve port is connected with relief opening, and the 4th valve port is connected with gas returning port, and the second valve port is connected with low pressure valve.Silencing apparatus 100 is connected between the first valve port and relief opening, or silencing apparatus 100 is connected between the 4th valve port and gas returning port, or silencing apparatus 100 is connected between the second valve port and low pressure valve.
When silencing apparatus 100 is connected between the first valve port and relief opening, the air-flow of being discharged by relief opening is first eliminated the noise through silencing apparatus 100, then enters in four-way valve, has effectively subdued thus the different sound of outdoor unit gas and has been passed to indoor set; When silencing apparatus 100 is connected between the 4th valve port and gas returning port, air-flow is first after silencing apparatus 100 noise reductions, turn back in compressor, the noise while greatly reducing compressor operating thus, has avoided the noise transmission of compressor generation effectively to indoor set again.Similarly, silencing apparatus 100 is connected between the second valve port and low pressure valve, the noise in the time of also can effectively reducing compressor operating, avoids the noise transmission of compressor generation to indoor set.
According to the air conditioner of the embodiment of the present invention, by be inserted into tracheae 20 and steam outlet pipe 30 on the relative the first side wall 12 of expansion cavity 11 and the second sidewall 13, air-flow is in flow process, because the cross section of air flow passage changes suddenly, produced acoustic impedance mismatch, the section generation reflex that sound wave in characteristic frequency section is suddenlyd change in acoustic impedance, has subdued the different sound that is reached indoor set by air conditioner outdoor machine.Simultaneously, the center line of the center line of suction tude 20 and steam outlet pipe 30 is distributed in respectively the both sides of the center line of expansion cavity 11, extended the length of air flow passage, and changed the direction of air current flow, reduced the flowing velocity of air-flow, make disorderly air-flow become milder, and then reduced the noise that disorderly air-flow produces.Thus, reduce the operating noise of air conditioner, promoted user satisfaction.
In description of the invention, it will be appreciated that, term " " center ", " length ", " width ", " thickness ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or be integral; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And, the specific features of description, structure, material or feature can one or more embodiments in office or example in suitable mode combination.In addition,, not conflicting in the situation that, those skilled in the art can carry out combination and combination by the feature of the different embodiments that describe in this specification or example and different embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, modification, replacement and modification.
Claims (10)
1. a silencing apparatus, is characterized in that, comprising:
Expansion shell, limits expansion cavity in described expansion shell;
Suction tude, one end of described suction tude is inserted in described expansion cavity from the first side wall of described expansion cavity;
Steam outlet pipe, one end of described steam outlet pipe is inserted in described expansion cavity from the second sidewall relative with described the first side wall, and the center line of wherein said steam outlet pipe and the center line of described suction tude are distributed in respectively the both sides of the center line of described expansion cavity.
2. silencing apparatus according to claim 1, is characterized in that, the length of the part that is positioned at described expansion cavity of described suction tude and the ratio d1 of the length of described expansion cavity meet following 0.5≤d1≤0.75 that is related to.
3. silencing apparatus according to claim 1, is characterized in that, the length of the part that is positioned at described expansion cavity of described steam outlet pipe and the ratio d2 of the length of described expansion cavity meet following 0.5≤d2≤0.75 that is related to.
4. silencing apparatus according to claim 1, is characterized in that, the cross section of described expansion cavity forms circle.
5. silencing apparatus according to claim 4, is characterized in that, the ratio range of the diameter of described expansion cavity and the diameter of described suction tude is 2-5.
6. silencing apparatus according to claim 4, is characterized in that, the ratio range of the diameter of described expansion cavity and the diameter of described steam outlet pipe is 2-5.
7. according to the silencing apparatus described in claim 5 or 6, it is characterized in that, the span of the diameter of described steam outlet pipe and/or described suction tude is 5mm-16mm.
8. silencing apparatus according to claim 1, is characterized in that, the cross section of described expansion cavity forms ellipse.
9. silencing apparatus according to claim 1, is characterized in that, described steam outlet pipe, described suction tude and described expansion shell are respectively copper part or stainless steel part.
10. an air conditioner, is characterized in that, comprising:
Compressor, described compressor has relief opening and gas returning port;
Four-way valve, described four-way valve comprises first to fourth valve port, and described the first valve port is connected with described relief opening, and described the 4th valve port is connected with described gas returning port, and described the second valve port is connected with low pressure valve;
Silencing apparatus, described silencing apparatus is according to the silencing apparatus described in any one in claim 1-9, described silencing apparatus is connected between described the first valve port and described relief opening, or described silencing apparatus is connected between described the 4th valve port and described gas returning port, or described silencing apparatus is connected between described the second valve port and described low pressure valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410222158.3A CN104005960A (en) | 2014-05-23 | 2014-05-23 | Silencer and air conditioner with silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410222158.3A CN104005960A (en) | 2014-05-23 | 2014-05-23 | Silencer and air conditioner with silencer |
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| CN104005960A true CN104005960A (en) | 2014-08-27 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410222158.3A Pending CN104005960A (en) | 2014-05-23 | 2014-05-23 | Silencer and air conditioner with silencer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285496A (en) * | 2019-07-29 | 2019-09-27 | 珠海格力电器股份有限公司 | Muffler, refrigeration system and air conditioner |
| CN111249586A (en) * | 2018-11-30 | 2020-06-09 | 深圳市大雅医疗技术有限公司 | Breathing machine |
| CN114215669A (en) * | 2021-12-24 | 2022-03-22 | 安徽江淮汽车集团股份有限公司 | Method for eliminating air inlet broadband noise and expansion cavity structure |
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| CN1595003A (en) * | 2004-07-12 | 2005-03-16 | 湖南大学 | Air-conditioning plant using heated water and heating pump |
| US20090090579A1 (en) * | 2007-10-03 | 2009-04-09 | Denso Corporation | Silencer for refrigeration cycle system |
| CN201292948Y (en) * | 2008-10-20 | 2009-08-19 | 广东美的电器股份有限公司 | Silencer for exhaust pipe of air conditioner compressor |
| CN101520047A (en) * | 2008-02-27 | 2009-09-02 | 杨原茂 | Mini-type muffler |
| CN103671124A (en) * | 2013-11-13 | 2014-03-26 | 无锡市张泾压力容器制造有限公司 | Inlet silencer |
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- 2014-05-23 CN CN201410222158.3A patent/CN104005960A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1595003A (en) * | 2004-07-12 | 2005-03-16 | 湖南大学 | Air-conditioning plant using heated water and heating pump |
| US20090090579A1 (en) * | 2007-10-03 | 2009-04-09 | Denso Corporation | Silencer for refrigeration cycle system |
| CN101520047A (en) * | 2008-02-27 | 2009-09-02 | 杨原茂 | Mini-type muffler |
| CN201292948Y (en) * | 2008-10-20 | 2009-08-19 | 广东美的电器股份有限公司 | Silencer for exhaust pipe of air conditioner compressor |
| CN103671124A (en) * | 2013-11-13 | 2014-03-26 | 无锡市张泾压力容器制造有限公司 | Inlet silencer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111249586A (en) * | 2018-11-30 | 2020-06-09 | 深圳市大雅医疗技术有限公司 | Breathing machine |
| CN111249586B (en) * | 2018-11-30 | 2023-08-08 | 深圳市大雅医疗技术有限公司 | Breathing machine |
| CN110285496A (en) * | 2019-07-29 | 2019-09-27 | 珠海格力电器股份有限公司 | Muffler, refrigeration system and air conditioner |
| CN110285496B (en) * | 2019-07-29 | 2023-11-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Muffler, refrigerating system and air conditioner |
| CN114215669A (en) * | 2021-12-24 | 2022-03-22 | 安徽江淮汽车集团股份有限公司 | Method for eliminating air inlet broadband noise and expansion cavity structure |
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Application publication date: 20140827 |