CN104501379B - Air-breathing is piped pipeline, air suction structure, household electrical appliance and dehumidifier - Google Patents
Air-breathing is piped pipeline, air suction structure, household electrical appliance and dehumidifier Download PDFInfo
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- CN104501379B CN104501379B CN201410811098.9A CN201410811098A CN104501379B CN 104501379 B CN104501379 B CN 104501379B CN 201410811098 A CN201410811098 A CN 201410811098A CN 104501379 B CN104501379 B CN 104501379B
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- air
- intake duct
- air intake
- pipeline
- breathing
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0218—Flexible soft ducts, e.g. ducts made of permeable textiles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0209—Ducting arrangements characterised by their connecting means, e.g. flanges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
Abstract
The invention discloses a kind of air-breathing piping pipeline, air suction structure, household electrical appliance and dehumidifiers, are related to household appliance technical field, the noise generated to reduce air-breathing piping pipeline.It includes the first air intake duct and connecting tube that air-breathing, which is piped pipeline, and one end of the connecting tube is connected to the other end of first air intake duct, and the ratio of the outer diameter of the outer diameter and connecting tube of first air intake duct is less than 63%.Above-mentioned technical proposal, it is different from all using pipe formation air-breathing of the outer diameter in 63% or more pipe size of connection to be piped the scheme of pipeline in the prior art, the first air intake duct that outer diameter is small is used, utilize the flexibility of pipeline, it reduces because noise caused by pipeline vibration, farthest reduces the noise of complete machine；It discharges pipeline stress preferably simultaneously, reduces ess-strain.
Description
Technical field
The present invention relates to household appliance technical fields, and in particular to a kind of air-breathing piping pipeline, air suction structure, household electrical appliance and removes
Wet machine.
Background technique
With the improvement of the quality of life, small in size, compact-sized domestic dehumidifying machine gradually steps into people's lives, the public
Requirement to dehumidifier performance indicator is also higher and higher.The noise of domestic dehumidifying machine directly influences the impression of user.Household removes
The extraordinary noise of wet machine is mainly caused by compressor, fan, the piping collective effects such as pipeline and sheet metal component, especially piping pipe
The caused noise of road vibration, it is very big to the vibration noise contribution of complete machine, and also the larger vibration being piped also is easy to cause piping
The fatigue fracture of pipeline.
Currently, existing household 40L dehumidifier air intake duct design mostly uses Φ 6, Φ 7, Φ 8,9 piping connection of Φ.For example, removing
For wet machine because compressor air suction mouth design is unified for Φ 9.7, existing air intake duct is that the connecting tube of a Φ 9.52 connects one
The copper pipe of root Φ 6 or Φ 7 are formed by connecting.
Inventors have found that at least there are following problems in the prior art: the vibration source of domestic dehumidifying machine, which mostlys come from, to be removed
Wet machine compressor, and transmitted by the footing of compressor and piping pipeline to outside, air-breathing is piped pipeline due to being compressed
The influence of exciting and the refrigerant flowing of machine and be in forced vibration state, to generate apparent vibration and noise.Specifically,
After dehumidifier is mounted with compressor, the suction line of compressor is limited by space is small, and pipeline arranges relative difficulty, is walking pipe
During the number in the direction of pipeline, stroke and bending all receive large effect, the power that channel interior is subject to cannot get
Effective and reasonable release so pipeline vibration is caused to aggravate, while generating vibration noise, causes the vibration of dehumidifier complete machine and makes an uproar
Sound is all bigger.Existing piping method causes pipeline vibration ess-strain larger, general startup-shutdown maximum strain 280 μ with
On, operation maximum strain is in 60 μ or more, and whole strain is higher and extremely unstable, and there are great pipelines to split danger of leaking out.And
The compressor noise value and sound quality be piped by this method is generally poor, is unable to satisfy contemporary people to dehumidifier requirement.
Above situation shows: market needs a kind of be preferably piped to solve the noise problem of domestic dehumidifying machine.
Summary of the invention
One of purpose of the invention is to propose that a kind of air-breathing is piped pipeline, air suction structure, household electrical appliance and dehumidifier,
The noise generated to reduce air-breathing piping pipeline.
To achieve the above object, the present invention provides following technical schemes:
The present invention provides a kind of air-breathings to be piped pipeline, the first air intake duct and connecting tube, one end of the connecting tube and institute
State the other end connection of the first air intake duct, the ratio of the outer diameter of the outer diameter and connecting tube of first air intake duct
Less than 63%.
Air-breathing as described above is piped pipeline, it is preferred that and air-breathing piping pipeline further includes the second air intake duct, and described second
One end of air intake duct is connected to one end of first air intake duct, and the outer diameter of second air intake duct is more than or equal to 6mm.
Air-breathing as described above is piped pipeline, it is preferred that the outer diameter of first air intake duct is less than 6mm.
Air-breathing as described above is piped pipeline, it is preferred that the length of first air intake duct accounts for entire air-breathing piping pipe
The 30%-70% of road length.
Air-breathing as described above is piped pipeline, it is preferred that one end of first air intake duct is in flared, and described the
One end of one air intake duct is sealed and coated on the outside of one end of second air intake duct.
Air-breathing as described above is piped pipeline, it is preferred that one end of the connecting tube is in shrink mouth shape, and the connecting tube
One end sealed envelope on the outside of the other end of first air intake duct.
Air-breathing as described above is piped pipeline, it is preferred that the outer diameter of first air intake duct is 5mm；And/or
First air intake duct is copper pipe.
The present invention also provides a kind of air suction structures, including compressor, evaporator, wherein further includes any technology of the present invention
Air-breathing provided by scheme is piped pipeline；
One end of first air intake duct is connected to the evaporator, and the other end of the connecting tube and the compressor connect
It is logical；
On airintake direction, air-flow is introduced into first air intake duct, enters back into the connecting tube.
The present invention also provides a kind of household electrical appliance, including air suction structure provided by any technical solution of the present invention.
The present invention provides a kind of dehumidifier, including air suction structure provided by any technical solution of the present invention again.
Based on the above-mentioned technical proposal, the embodiment of the present invention at least can produce following technical effect:
Air-breathing is piped pipeline, and the air-breathing piping pipeline being especially used in dehumidifier, size is small, and processed
Easily occurs metaboly in journey, and caliber is small that refrigeration system resistance is easy to cause to increase, pressure drop becomes larger, and moisture removal will receive
It influences, so thinking that the caliber of pipe used in air-breathing piping pipeline must be greater than being equal to 6mm in the prior art.
However, above-mentioned technical proposal, and in the prior art all using outer diameter in the large scale for connecting 63% or more pipe size
The scheme that pipe forms air-breathing piping pipeline is different, has used the first air intake duct that outer diameter is small, utilizes the flexibility of pipeline, drop
It is low because noise caused by pipeline vibration, farthest reduces the noise of complete machine；Also make pipeline stress more preferable simultaneously
Release, reduce ess-strain.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram one that air-breathing provided in an embodiment of the present invention is piped pipeline；
Fig. 2 is the structural schematic diagram two that air-breathing provided in an embodiment of the present invention is piped pipeline；
Fig. 3 is the structural schematic diagram three that air-breathing provided in an embodiment of the present invention is piped pipeline；
Fig. 4 is the structural schematic diagram four that air-breathing provided in an embodiment of the present invention is piped pipeline；
Fig. 5 is the structural schematic diagram five that air-breathing provided in an embodiment of the present invention is piped pipeline；
Fig. 6 is the structural schematic diagram six that air-breathing provided in an embodiment of the present invention is piped pipeline.
Appended drawing reference:
1, the first air intake duct；2, the second air intake duct；3, connecting tube.
Specific embodiment
Technical solution provided by the invention is illustrated in more detail below with reference to FIG. 1 to FIG. 6, the present invention is provided
Any technological means be replaced or any two or more technical means or technical features provided by the invention are mutual
Technical solution obtained from being combined should be within protection scope of the present invention.
The embodiment of the present invention provides a kind of air-breathing piping pipeline, including the first air intake duct 1 and connecting tube 3, and the one of connecting tube 3
End is connected to the other end of the first air intake duct 1, and the ratio of the outer diameter and the outer diameter of connecting tube 3 of the first air intake duct 1 is small
In 63%.
For example, pipe of the connecting tube 3 using Φ 9.52, then the tube outer diameter that the first air intake duct 1 uses is less than 6mm, after
Text will be as example elaborate.Connecting tube 3 uses the pipe of Φ 7, then the tube outer diameter that the first air intake duct 1 uses is less than
4.41mm。
Air-breathing is piped pipeline, and the air-breathing piping pipeline being especially used in dehumidifier, size is small, and processed
Easily occurs metaboly in journey, and caliber is small that refrigeration system resistance is easy to cause to increase, pressure drop becomes larger, and moisture removal will receive
It influences, so the caliber of pipe used in the air-breathing piping pipeline used in the prior art must be greater than being equal to 6mm.
However, above-mentioned technical proposal, and in the prior art all using outer diameter in the large scale for connecting 63% or more pipe size
The scheme that pipe forms air-breathing piping pipeline is different, has used the first air intake duct that outer diameter is small, utilizes the flexibility of pipeline, drop
It is low because noise caused by pipeline vibration, farthest reduces the noise of complete machine；Also make pipeline stress more preferable simultaneously
Release, reduce ess-strain.
Specifically, depending on the outer diameter of connecting tube 3, the outer diameter of the first air intake duct 1 is specifically as follows
5.5mm, 5mm, 4.5mm, 4mm etc..The wall thickness of first air intake duct 1 can use standard wall thickness corresponding with outer diameter, such as
When outer diameter is 5mm, wall thickness can be 0.5mm.
The material of first air intake duct 1 can select copper, and copper pipe is flexible, can further decrease air-breathing piping pipeline and use
The noise generated in journey.
Further, air-breathing piping pipeline further includes the second air intake duct 2, one end of the second air intake duct 2 and the first air intake duct 1
One end connection, the outer diameter of the second air intake duct 2 is more than or equal to 6mm.
Second air intake duct 2 can use following size Φ 6 × 0.5, wherein Φ 6 is the outer diameter of the second air intake duct 2, and 0.5 is
The wall thickness of second air intake duct 2.The material of second air intake duct 2 can use copper pipe.The other end of second air intake duct 2 goes out with evaporator
Pipe connection.
Further, the outer diameter of the first air intake duct 1 is less than 6mm.Connecting tube 3 can be using the pipe of existing size.
In the present embodiment, by simultaneously for the both ends of the first air intake duct 1 configure the second air intake duct 2 and connecting tube 3, first
Air intake duct 1 exists in entire air-breathing piping pipeline as coupling tube, and air-breathing piping pipeline, which on the one hand can be effectively reduced, to be made
With the noise generated in the process, the performance of entire air-breathing piping pipeline on the other hand can not be influenced, so that the resistance of refrigeration system
Power, pressure drop, moisture removal are consistent with existing air-breathing piping pipeline substantially.
Optionally, the 30%-70% that the length of the first air intake duct 1 accounts for entire air-breathing piping length of pipe is specifically less than
700mm.The performance for using the first air intake duct 1 of above-mentioned length that can make entire air-breathing piping pipeline is secure.
In the present embodiment, it is connected between the first air intake duct 1 and the second air intake duct 2 using following manner: the first air intake duct 1
One end is in flared, and one end of the first air intake duct 1 is sealed and coated on the outside of one end of the second air intake duct 2.Above-mentioned connection type
It is easy to be reliable.
In the present embodiment, be connected between the first air intake duct 1 and connecting tube 3 using following manner: one end of connecting tube 3 is in contracting
Mouth shape, and one end sealed envelope of connecting tube 3 is on the outside of the other end of the first air intake duct 1.Above-mentioned connection type is easy to be reliable.
Connecting tube 3 can specifically use U-tube.
It is described in detail below with reference to the specific embodiment that Fig. 1 is provided.The size of connecting tube 3 is Φ 9.52 in Fig. 1, for connecting
Connect compressor.3 necking of connecting tube of Φ 9.52 is to internal diameter Φ 5.2, to connect the first air intake duct 1 of Φ 5.The first air-breathing of Φ 5
1 internal diameter of pipe is flared to Φ 6.2, to connect the second air intake duct 2 of Φ 6.2 internal diameter of the second air intake duct of Φ 6 is flared to Φ 7.2, with
Connect evaporator outlet pipe.
Specifically, the Φ 5 that air-breathing piping pipeline provided in this embodiment has creatively used one section of flexibility fabulous is (outer
Diameter) × 0.5 (wall thickness) copper pipe, by entire air-breathing piping pipeline be divided into three parts: one section of Φ 9.52 (outer diameter) × 0.71 (wall
It is thick) 3, one sections of Φ 5 (outer diameter) × 0.5 (wall thickness) of U-shaped connecting tube 1, one section of Φ 6 (outer diameter) × 0.5 (wall of the first air intake duct
It is thick) the second air intake duct 2 composition.
The pipeline of Φ 9.52 is generally U-tube, the first air intake duct 1 of Φ 5, the second air intake duct 2 of Φ 6 concrete shape by
The limitation of type shell size and cloth tube space, several possible arrangement forms are referring to FIG. 1 to FIG. 6.
The model analysis conclusion and harmonic responding analysis that above-mentioned air-breathing piping pipeline is described below with air-breathing to be piped as a result, managed
For road is applied on household 40L dehumidifier.
1 air-breathing of table is piped pipeline model analysis data
| Order | Gu frequency | Order | Gu frequency | Order | Gu frequency | Order | Gu frequency |
| 1 | 5.3 | 6 | 17.3 | 11 | 55.7 | 16 | 69.1 |
| 2 | 5.4 | 7 | 23.5 | 12 | 58.8 | 17 | 79.7 |
| 3 | 10.7 | 8 | 27.3 | 13 | 62.4 | 18 | 89.6 |
| 4 | 15.9 | 9 | 30 | 14 | 67.8 | 19 | 101.1 |
| 5 | 16.7 | 10 | 30.7 | 15 | 68.1 | 20 | 119.2 |
The solid frequency of the analysis for being piped pipeline CAE by air-breathing the results show that the air-breathing that above-mentioned technical proposal provides is piped pipeline,
The operating frequency of compressor 48Hz and the operating multiple frequency of 96Hz are avoided, increases the flexibility of air-breathing piping pipeline, favorably
In absorbing more vibrational energies, the risk of air-breathing piping pipeline resonance is reduced, by being piped the improvement of pipeline to air-breathing, most
Vibration and the noise of system are reduced eventually.
2 harmonic responding analysis result of table
As can be seen from Table 2, the intrinsic frequency of air-breathing piping pipeline deviates compressor speed 8Hz or more, and satisfaction is wanted
It asks.The stress that air-breathing is piped pipeline is average, and stress maximum value is not more than 5Mpa, meets the requirements.
In addition, as can be seen from Table 2, technical solution provided in an embodiment of the present invention admirably solves household 40L dehumidifying
The higher problem of machine ess-strain is no more than 30 μ in operation phase maximum strain, and startup-shutdown each position maximum strain is no more than 230 μ
And fluctuated in the case where volume production it is smaller, and the same industry competition in noise it is small, it is with the obvious advantage.Also, use above-mentioned skill
The air-breathing that art scheme provides is piped pipeline, and maximum stress strain is significantly less than stress in the prior art, strain.
It further include that the present invention is any another embodiment of the present invention provides a kind of air suction structure, including compressor, evaporator
Air-breathing provided by technical solution is piped pipeline；One end of first air intake duct 1 is connected to the evaporator, can specifically be led to
Cross the connection of the second air intake duct 2.The other end of connecting tube 3 is communicated with compressor.On airintake direction, air-flow is introduced into described first
Air intake duct (1) enters back into connecting tube (3).
After being provided with the second air intake duct 2, on airintake direction, air-flow is introduced into the second air intake duct 2, enters back into first
Air intake duct 1 finally enters connecting tube 3.
Another embodiment of the present invention provides a kind of household electrical appliance, including air-breathing knot provided by any technical solution of the present invention
Structure.
Further embodiment of this invention provides a kind of dehumidifier, including air-breathing knot provided by any technical solution of the present invention
Structure.
The load data using compressor after above-mentioned air-breathing piping pipeline is described below.
3 load data of table
| Compressor operating frequency (Hz) | 48 |
| Radial force FR (N) | 73.47427 |
| Z-direction torque (Nmm) | 264.867758 |
| Exhaust pipe pressure fluctuation (MPa) | 0.03 |
| Muffler pressure fluctuation (MPa) | 0.01 |
Data in upper table are that compressor monomer test data is realized, predominantly compressor parameter, as can be seen from Table 3
The working frequency of compressor is 48Hz.
Above-mentioned technical proposal is specifically such as creative on the air intake duct and exhaust pipe of household 40L dehumidifier in dehumidifier
Ground respectively increases by one section of 5 pipeline of φ, for the first time by the relationship between the vibration noise of dehumidifier and compressor piping circuit design arrangement
It connects, the design being piped by reasonably optimizing realizes vibration and noise reducing, improves the reliability of product.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is only the present invention and simplified description for ease of description, rather than indicates or imply signified device
Or element must have a particular orientation, construct and operate for specific orientation, thus should not be understood as in present invention protection
The limitation of appearance.
If the words such as " first ", " second " are used herein come if limiting components, those skilled in the art are answered
This knows: the use of " first ", " second " is intended merely to facilitate the description present invention and simplifies description, does not in addition state such as,
Above-mentioned word has no special meaning.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (8)
1. a kind of air-breathing is piped pipeline, which is characterized in that including the first air intake duct (1) and connecting tube (3),
One end of the connecting tube (3) is connected to the other end of first air intake duct (1), outside first air intake duct (1)
The ratio of the outer diameter of diameter size and the connecting tube (3) is less than 63%；First air intake duct (1) is bending；
It further includes the second air intake duct (2) that air-breathing, which is piped pipeline, one end of second air intake duct (2) and first air intake duct
(1) one end connection, the outer diameter of second air intake duct (2) are more than or equal to 6mm；The outer diameter of first air intake duct (1)
For 5mm.
2. air-breathing according to claim 1 is piped pipeline, which is characterized in that the length of first air intake duct (1) accounts for whole
The 30%-70% of a air-breathing piping length of pipe.
3. air-breathing according to claim 1 is piped pipeline, which is characterized in that one end of first air intake duct (1) is in expansion
Mouth shape, and one end of first air intake duct (1) is sealed and coated on the outside of one end of second air intake duct (2).
4. air-breathing according to claim 1 is piped pipeline, which is characterized in that one end of the connecting tube (3) is in shrink mouth shape,
And one end sealed envelope of the connecting tube (3) is on the outside of the other end of first air intake duct (1).
5. air-breathing according to claim 1 is piped pipeline, which is characterized in that first air intake duct (1) is copper pipe.
6. a kind of air suction structure, including compressor, evaporator, which is characterized in that further include any suction of claim 1-5
Gas is piped pipeline；
One end of first air intake duct (1) is connected to the evaporator, the other end and the compressor of the connecting tube (3)
Connection；
On airintake direction, air-flow is introduced into first air intake duct (1), enters back into the connecting tube (3).
7. a kind of household electrical appliance, which is characterized in that including air suction structure as claimed in claim 6.
8. a kind of dehumidifier, which is characterized in that including air suction structure as claimed in claim 6.
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| CN201410811098.9A CN104501379B (en) | 2014-12-19 | 2014-12-19 | Air-breathing is piped pipeline, air suction structure, household electrical appliance and dehumidifier |
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| CN201410811098.9A CN104501379B (en) | 2014-12-19 | 2014-12-19 | Air-breathing is piped pipeline, air suction structure, household electrical appliance and dehumidifier |
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| CN104501379A CN104501379A (en) | 2015-04-08 |
| CN104501379B true CN104501379B (en) | 2019-03-26 |
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| CN105627474A (en) * | 2016-03-02 | 2016-06-01 | 广东美的制冷设备有限公司 | Air conditioner |
| CN107461964A (en) * | 2017-07-25 | 2017-12-12 | 广东美的制冷设备有限公司 | The blast pipe and air conditioner of compressor |
| CN109931720B (en) * | 2017-12-15 | 2024-02-09 | 三菱电机(广州)压缩机有限公司 | Heat pump system |
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| CN203857657U (en) * | 2014-04-17 | 2014-10-01 | Tcl空调器(中山)有限公司 | Air conditioner and silencer thereof |
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| KR100360235B1 (en) * | 1999-09-28 | 2002-11-08 | 엘지전자 주식회사 | Structure for reduction of vibration and noise in air-conditioner |
| JP2004251357A (en) * | 2003-02-19 | 2004-09-09 | Taiheiyo Seiko Kk | Tube material, expansion unit, and refrigerant circuit module |
| KR100593084B1 (en) * | 2004-02-16 | 2006-06-26 | 엘지전자 주식회사 | The suction pipe structure of air conditioner outdoor unit |
| JP4624240B2 (en) * | 2005-11-11 | 2011-02-02 | 三洋電機株式会社 | Refrigeration apparatus and cooling storage with refrigeration apparatus |
| KR20100078065A (en) * | 2008-12-30 | 2010-07-08 | 위니아만도 주식회사 | Multiple muffler and air-conditioning apparatus including it |
| KR101183055B1 (en) * | 2009-09-29 | 2012-09-20 | 한라공조주식회사 | Muffler for vehicle air conditioner and method for manufacturing thereof |
| CN102062503B (en) * | 2009-11-16 | 2012-11-07 | 海尔集团公司 | Pipeline distributing system of compressor and air conditioner with same |
| CN102003847A (en) * | 2010-11-04 | 2011-04-06 | Tcl空调器(中山)有限公司 | Sound-proof transition pipe |
| CN103148566B (en) * | 2013-03-26 | 2016-05-04 | 东莞市金瑞五金制品有限公司 | A kind of air conditioner piping |
| CN204388307U (en) * | 2014-12-19 | 2015-06-10 | 珠海格力电器股份有限公司 | Air-breathing pipe arrangement pipeline, air suction structure, household electrical appliance and dehumidifier |
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| CN203857657U (en) * | 2014-04-17 | 2014-10-01 | Tcl空调器(中山)有限公司 | Air conditioner and silencer thereof |
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