CN110056982A - Air-conditioner outdoor unit and its piping components - Google Patents
Air-conditioner outdoor unit and its piping components Download PDFInfo
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- CN110056982A CN110056982A CN201910365998.8A CN201910365998A CN110056982A CN 110056982 A CN110056982 A CN 110056982A CN 201910365998 A CN201910365998 A CN 201910365998A CN 110056982 A CN110056982 A CN 110056982A
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- pipe
- valve
- low pressure
- section
- muffler
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/40—Vibration or noise prevention at outdoor units
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The present invention provides a kind of air-conditioner outdoor unit and its piping components, the air-conditioner outdoor unit includes compressor, low pressure valve and outdoor heat exchanger, and the piping components include: four-way valve；Exhaust pipe, the exhaust pipe are connected to the four-way valve and the compressor；Muffler, the muffler are connected to the fluid reservoir of the four-way valve Yu the compressor；The cold pipe of valve, the cold pipe of valve are connected to the four-way valve and the outdoor heat exchanger；Low pressure valve pipe, the low pressure valve pipe are connected to the four-way valve and the low pressure valve；Wherein, at least one of the cold pipe of the exhaust pipe, muffler, valve, low pressure valve pipe include at least two path sections and at least one major diameter section, the path section is set to major diameter section both ends, and the circulation area of the path section is less than the circulation area of the major diameter section.The present invention will respectively piping be directly made into silencer in piping components, and erasure effect can be promoted and manufacturing cost is low, craftsmanship is strong by being respectively piped.
Description
Technical field
The present invention relates to air-conditioning equipment field more particularly to a kind of air-conditioner outdoor units and its piping components.
Background technique
The pressure at expulsion of the cylinder of the compressor of air-conditioner outdoor unit has cyclically-varying rule, causes in piping system
Refrigerant pressure also has pulsation property.When this pressure fluctuation is sufficiently large, the pipeline vibration of transmission refrigerant can be motivated.Indoor unit
Thin-walled workpiece can be given off the making an uproar at frequency multiplication relationship with compressor speed by the vibrational excitation of evaporator assemblies pipeline
Sound.This noise has apparent tonality, and is not easy by indoor machine wind sound masking.In the prior art usually in outdoor unit
One or more external silencer of four-way valve member.
But existing silencer has the following problems: (1) traditional four-way valve member needs individually external silencer, often results in
Silencer assembly space position is limited, silencer sound deadening capacity is insufficient, pipeline deformation, disconnected pipe after transport are fallen in silencer self weight initiation
The problems such as；(2) existing copper/steel silencer length is up to 200mm, and sound deadening capacity and frequency of noise elimination are difficult to meet different pressures
Contracting type number meets the elimination of low frequency transmitting sound especially for the longer silencer of needs of compressor low frequency transmitting sound, but
Since outdoor unit space is limited, it is difficult to longer silencer are mounted on outdoor unit, cause transmitting sound elimination that cannot thoroughly solve；
(3) the external silencer of pipeline fitting usually comes at additional increase cost problem, and external silencer usually welds effect in pipeline fitting
Rate is low, and is not easy to realize standardization；(4) it generally requires to take into account refrigerating/heating work for the compressor sound elimination of different operating conditions
Condition needs to increase in pipeline fitting two or more silencers to meet indoor compressor-free sound under mal-condition.
Summary of the invention
Of the invention provides a kind of piping components of air-conditioner outdoor unit, it is intended to solve the external noise elimination of four-way valve in the prior art
The bad and at high cost problem of device noise elimination effect.
To achieve the above object, the present invention provides a kind of piping components of air-conditioner outdoor unit, and the air-conditioner outdoor unit includes
Compressor, low pressure valve and outdoor heat exchanger, the piping components include: four-way valve；Exhaust pipe, described in exhaust pipe connection
Four-way valve and the compressor；Muffler, the muffler are connected to the fluid reservoir of the four-way valve Yu the compressor；Valve is cold
Pipe, the cold pipe of valve are connected to the four-way valve and the outdoor heat exchanger；Low pressure valve pipe, the low pressure valve pipe are connected to the four-way
Valve and the low pressure valve；Wherein, at least one of the cold pipe of the exhaust pipe, muffler, valve, low pressure valve pipe include at least two small
Diameter section and at least one major diameter section, the path section is set to major diameter section both ends, and the circulation area of the path section is small
In the circulation area of the major diameter section.
Preferably, in the exhaust pipe and the low pressure valve pipe, at least described exhaust pipe include described two path sections and
One major diameter section.
Preferably, in the exhaust pipe and muffler, at least described muffler includes described two path sections and described one
A major diameter section.
Preferably, the cold pipe of the exhaust pipe, muffler, valve, low pressure valve pipe respectively include at least described two path sections and
One major diameter section.
Preferably, changeover portion, the outer major diameter described without leave of the changeover portion are connected between the major diameter section and path section
Section is gradually reduced to the path section.
Preferably, the major diameter section of the exhaust pipe is in U-shape into setting, and the opening of two path sections for stating exhaust pipe is equal
It is arranged upward, the length that the exhaust pipe is connected to the path section of compressor is 10mm-12mm, and the exhaust pipe is connected to four-way
The path segment length of valve is 2mm-4mm.
Preferably, the major diameter section of the muffler includes the first U section and the second U section interconnected, the first U
Shape section is connected with the path section of the downward opening gas returning port for being connected to fluid reservoir, and second U section is connected with opening up
The path section for being connected to the four-way valve, wherein the muffler is connected to the length of the path section of the gas returning port of fluid reservoir
For 10mm-15mm, the length that the muffler is connected to the path section of four-way valve is 2mm-6mm.
Preferably, the low pressure valve pipe is connected to the opening up setting of the path section of the four-way valve, the low pressure valve
The length that pipe is connected to the path section of low pressure valve is 10mm-12mm, and the low pressure valve pipe is connected to the length of the path section of four-way valve
Degree is 2mm-4mm.
Preferably, which is characterized in that the major diameter segment number is 2 or more, and the both ends of each major diameter section are all provided with
It is equipped with path section.
In addition, to achieve the above object, the present invention also provides a kind of air-conditioner outdoor unit, the air-conditioner outdoor unit includes compression
Machine, low pressure valve, outdoor heat exchanger and piping components as described above, wherein the exhaust pipe be connected to the four-way valve with it is described
Compressor, the muffler are connected to the fluid reservoir of the four-way valve Yu the compressor, and the cold pipe of valve is connected to the four-way valve
With the outdoor heat exchanger, the low pressure valve pipe is connected to the four-way valve and the low pressure valve, and the low pressure valve is connected to air-conditioning
Indoor unit.
The present invention is not necessarily to external noise elimination by the way that exhaust pipe, muffler, the cold pipe of valve, low pressure valve pipe are directly made into silencer
Device is not take up additional space in air-conditioner outdoor unit, not only increases sound deadening capacity, and effectively avoids silencer self weight from causing and fall
After transport the problems such as pipeline deformation, disconnected pipe；And the cold pipe of exhaust pipe, muffler, valve, low pressure valve pipe can adjust length according to actual needs
Degree, is applicable to different compressor models, especially low frequency noise is difficult to eliminate, and needs to match ability with longer silencer
It is eliminated, and exhaust pipe, muffler, the cold pipe of valve, low pressure valve pipe are directly made into silencer by the application, the length of silencer can
To be set as needed, low frequency noise can be effectively eliminated, while required the space occupied is also smaller than external silencer；And it is straight
It connects and exhaust pipe, muffler, the cold pipe of valve, low pressure valve pipe is made into silencer, do not have in addition increase silencer, reduce and be produced into
This, improves the welding efficiency of pipeline, and be easy to standardize, and is applicable to the different refrigerating/heating operation moulds of outdoor unit
Formula.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 shows the structural schematic diagram of air-conditioner outdoor unit according to an embodiment of the invention；
Fig. 2 shows the structural schematic diagrams of piping components according to an embodiment of the invention；
Fig. 3 shows the structural schematic diagram of exhaust pipe according to an embodiment of the invention；
Fig. 4 shows the structural schematic diagram of muffler according to an embodiment of the invention；
Fig. 5 shows the structural schematic diagram of low pressure valve pipe according to an embodiment of the invention；
Fig. 6 shows the structural schematic diagram of the cold pipe of valve according to an embodiment of the invention；
Fig. 7 is the sound deadening capacity analogous diagram of piping group and the external silencer of part tradition of the invention in different frequency；
Fig. 8 is the noise comparison diagram of piping group and the external silencer of part tradition of the invention in 0-1000Hz frequency range；
Fig. 9 is the noise comparison diagram of piping group and the external silencer of part tradition of the invention in 0-200Hz frequency range；
Figure 10 is the noise comparison diagram of the piping group invented and the external silencer of part tradition in 0-300Hz frequency range.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 100 | Air-conditioner outdoor unit | 1021 | Fluid reservoir |
| 101 | Noise reduction box | 10 | Piping components |
| 102 | Compressor | 11 | Four-way valve |
| 103 | Installation cavity | 12 | Muffler |
| 104 | Left plate | 13 | Muffler |
| 105 | Chassis | 14 | The cold pipe of valve |
| 106 | Outdoor heat exchanger | 15 | Low pressure valve pipe |
| 107 | Middle partition | 16 | Path section |
| 108 | Low pressure valve | 17 | Major diameter section |
| 18 | Changeover portion |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
Fig. 1, air-conditioner outdoor unit 100 according to an embodiment of the present invention are please referred to, the air-conditioner outdoor unit 100 can be single cold type
The outdoor unit of the air conditioner of outdoor unit of the air conditioner and/or cold-warm type, the air-conditioner outdoor unit 100 are the room of single cold type air conditioner
When outer machine, four-way valve 11 can be saved, and the present embodiment is by taking the air-conditioner outdoor unit 100 is the outdoor unit of the air conditioner of cold-warm type as an example
It is illustrated.
In this city embodiment, the air-conditioner outdoor unit 100 includes shell (not shown), noise reduction box 101, compressor 102, room
External heat exchanger 106, low pressure valve 108 and piping components 10 limit installation cavity 103 in the shell, specifically, shell can be with
It is not shown including front panel (not shown) and left plate 104, right side plate), top plate (not shown) and chassis 105, front panel, left side
Plate 104 and right side plate are connected on chassis 105, and top plate is connect with front panel, left plate 104 and right side plate respectively, outdoor
For the open end of heat exchanger 106 towards front panel, outdoor heat exchanger 106 and front panel, left plate, right side plate, top plate and chassis are total
It is same to limit installation cavity 103.Middle partition 107 is additionally provided in installation cavity 103, installation cavity 103 is divided to for two chambers by middle partition 107
Room, noise reduction box 101 are located in installation cavity 103, and are located at the chamber that middle partition 107, right side plate and outdoor heat exchanger 106 limit
It is interior.The piping components 10 of compressor 102 and air-conditioner outdoor unit 100 are located in noise reduction box 101, and piping components 10 can level put
It is placed in the noise reduction box 101, other angles also can be set into, when piping components 10 are placed horizontally in the noise reduction box 101
As shown in Figure 1, wherein arrow A indicates direction upward, and arrow B indicates direction directed downwardly.It is described to match also referring to Fig. 1-2
Tube assembly 10 includes: four-way valve 11；Exhaust pipe 12, the exhaust pipe 12 are connected to the four-way valve 11 and the compressor 102；It returns
Tracheae 13, the muffler 13 are connected to the fluid reservoir 1021 of the four-way valve 11 and the compressor 102；The cold pipe 14 of valve, it is described
The cold pipe 14 of valve is connected to the four-way valve 11 and the outdoor heat exchanger 106；Low pressure valve pipe 15, the low pressure valve pipe 15 are connected to described
Four-way valve 11 and the low pressure valve 108；That is, described 12 one end of exhaust pipe is connected to the four-way valve 11, the four-way valve 11
The other end is connected to the exhaust outlet of the compressor 102, and one end of the muffler 13 is connected to the four-way valve 11, and described four
11 other end of port valve is connected to the gas returning port of the fluid reservoir 1021 of the compressor 102, and described cold 14 one end of pipe of valve is connected to institute
Four-way valve 11 is stated, the other end of the cold pipe 14 of valve is connected to the outdoor heat exchanger 106,15 one end of low pressure valve pipe connection
To the four-way valve 11, the other end connects the low pressure valve 108, and the low pressure valve 108 is connected to indoor unit (not shown).It please one
And refering to Fig. 3-6, in the present embodiment, at least one of the cold pipe 14 of the exhaust pipe 12, muffler 13, valve, low pressure valve pipe 15 packet
It includes at least two path sections 16 and at least one major diameter section 17, the path section 16 is set to 17 both ends of major diameter section, and institute
The circulation area for stating path section 16 is less than the circulation area of the major diameter section 17, that is, the exhaust pipe 12, muffler 13, valve
The both ends of at least one of cold pipe 14, low pressure valve pipe 15 are arranged in necking；As a preferred embodiment, the exhaust pipe 12,
The cold pipe 14 of muffler 13, valve, low pressure valve pipe 15 are arranged in necking, the cold pipe 14 of the exhaust pipe 12, muffler 13, valve, low pressure
Valve pipe 15 can be respectively formed muffler of gas escape tube, return-air muffler pipe, the cold muffler pipe of valve, low pressure valve muffler pipe, that is, this
In the embodiment of invention, exhaust pipe 12, muffler 13, the cold pipe 14 of valve, low pressure valve pipe 15 are directly made into silencer, the exhaust
The cold pipe 14 of pipe 12, muffler 13, valve, low pressure valve pipe 15 not only can transmit refrigerant, but also play the function of silencer, thus in compressor
Before 102 noise is transmitted to indoor unit, noise is eliminated or is cut down, reduced influence of the indoor unit noise to user, mention
High user experience.
The piping components 10 of the embodiment of the present invention, directly by exhaust pipe 12, muffler 13, the cold pipe 14 of valve, low pressure valve pipe 15
It is made into silencer, external silencer is not necessarily to, is not take up additional space in air-conditioner outdoor unit 100, not only increases sound deadening capacity, and
After effectively avoiding silencer self weight initiation from falling transport the problems such as pipeline deformation, disconnected pipe；And exhaust pipe 12, muffler 13, valve are cold
Pipe 14, low pressure valve pipe 15 can adjust length according to actual needs, be applicable to different 102 models of compressor, especially low frequency
Noise is difficult to eliminate, and needs to match with longer silencer and just can be carried out elimination, and the application is directly by exhaust pipe 12, muffler
13, the cold pipe 14 of valve, low pressure valve pipe 15 are made into silencer, and the length of silencer can according to need setting, can effectively eliminate
Low frequency noise, while required the space occupied is also smaller than external silencer；And directly by exhaust pipe 12, muffler 13, the cold pipe of valve
14, low pressure valve pipe 15 is made into silencer, does not have in addition increase silencer, reduces production cost, improves the welding effect of pipeline
Rate, and be easy to standardize, and be applicable to the different refrigerating/heating operational modes of outdoor unit.
Preferably, for the exhaust pipe 12 with the low pressure valve pipe 15, at least described exhaust pipe 12 includes described two small
Diameter section 16 and one major diameter section 17.
In the present embodiment, be in heating mode in the air-conditioner outdoor unit 100, refrigerant from the compressor 102 successively
Through being sent to indoor unit by exhaust pipe 12, low pressure valve pipe 15, the noise that compressor 102 generates also follows coolant transmission to interior
Machine, the exhaust pipe 12 in the low pressure valve pipe 15, since the exhaust pipe 12 is near the compressor 102 for generating noise,
Therefore the exhaust pipe 12 is at least made into silencer, can greatly cuts down noise, further, then by the low pressure valve pipe 15
It is made into silencer, noise can be cut down on whole path of noise transmission, reach better noise elimination effect, at this point, the return-air
Pipe 13 and the cold pipe 14 of the valve can not be made into silencer, to save manufacturing cost.
Preferably, for the exhaust pipe 12 with muffler 13, at least described muffler 13 includes described two path sections 16
With one major diameter section 17.
In the present embodiment, the air-conditioner outdoor unit 100 be single cold type outdoor unit, refrigerant from the compressor 102 successively
Through being sent to outdoor unit by exhaust pipe 12, the cold pipe 14 of valve, and being transferred to room through high pressure valve pipe (not shown) from the outdoor unit
Interior machine, then compressor 102 is returned to through low pressure valve pipe 15, muffler 13 from the indoor unit, due to the exhaust pipe 12 and return-air
Pipe 13 is near the compressor 102 for generating noise, and the muffler 13 is compared to exhaust pipe 12 and closer to indoor unit, therefore
The muffler 13 is at least made into silencer, can greatly cut down the noise for being transferred to indoor unit, further, then will be described
Exhaust pipe 12 is made into silencer, can cut down noise on the outflow pipeline and incoming pipeline of the compressor 102, reach better
Noise elimination effect, at this point, the low pressure valve pipe 15 and the cold pipe 14 of the valve can not be made into silencer, to save manufacturing cost.
Preferably, be connected with changeover portion 18 between the major diameter section 17 and path section 16, the changeover portion 18 it is outer without leave
The major diameter section 17 is gradually reduced to the path section 16.
In the present embodiment, the outer major diameter section 17 described without leave of the changeover portion 18 is gradually reduced to the path section 16,
That is, the smooth transition of major diameter section 17 increases and decreases the major diameter section 17 and 16 connection position of path section to the path section 16
The rigidity for setting place prevents the path section 16 and the major diameter section after the path section 16 waits components welding with four-way valve 11
17 are broken easily at link position.
In one embodiment, the internal diameter of the changeover portion 18 also gradually subtracts from the major diameter section 17 to the path section 16
Small, that is, itself wall thickness of the changeover portion 18 is consistent, the inner wall of the changeover portion 18 is arranged in slope, described in reducing
Resistance when refrigerant flows to the path section 16 from the major diameter section 17.
In another embodiment, the internal diameter of the changeover portion 18 is kept inconvenient, and the wall thickness of the changeover portion 18 is from described big
Diameter section 17 is gradually reduced to the path section 16, to enhance the rigidity of the changeover portion 18.
In one embodiment, the path section 16 is recessed inwardly by the end of the major diameter section 17 and is formed, described in reducing
The manufacture difficulty of path section 16, in another embodiment, the outer diameter of the path section 16 and the major diameter section 17 are consistent, this
When, the changeover portion 18 saves, and the internal diameter of the path section 16 is less than the internal diameter of the major diameter section 17, so that the path section 16
Circulation area be less than the circulation area of the major diameter section 17, while enhancing the path section 16 and 17 connection position of major diameter section
Set the rigidity at place.
As shown in figure 3, arrow A indicates direction upward in Fig. 3, arrow B indicates direction directed downwardly, it is preferable that the row
The major diameter section 17 of tracheae 12 is in U-shape into setting, and opening one of two path sections 16 for stating exhaust pipe 12 is arranged upward, and one
It is a to be arranged downward, thus, it is possible to reduce the length of exhaust pipe 12, to reduce the self weight of exhaust pipe 12, effectively improve exhaust pipe
12 rigidity effectively solves the problems, such as that exhaust pipe 12 and lateral stress in 102 exhaust outlet junction of compressor are big, avoids exhaust pipe 12
It resonates with compressor 102.The length that the exhaust pipe 12 is connected to the path section 16a1 of compressor 102 is 10mm-12mm,
It facilitates insertion into the exhaust outlet of compressor 102 and is welded and fixed, the exhaust pipe 12 is connected to the path section 16a2 long of four-way valve 11
Degree is 2mm-4mm, convenient for being welded and fixed with four-way valve 11.
As shown in figure 4, arrow A indicates direction upward in Fig. 4, arrow B indicates direction directed downwardly, it is preferable that described time
The major diameter section 17 of tracheae 13 includes the first U section 17a interconnected and the second U section 17b, the first U section 17a connection
There are the path section 16b1, the second U section 17b of the downward opening gas returning port for being connected to fluid reservoir 1021 to be connected with opening court
On be connected to the path section 16b2 of the four-way valve 11, in this way, can reduce the length of muffler 13, to reduce muffler
13 self weight effectively improves the rigidity of muffler 13, effectively solves muffler 13 and compression 1021 gas returning port junction of fluid reservoir
The big problem of interior lateral stress avoids muffler 13 and compressor 102 that resonance occurs and generates noise, wherein the muffler 13 connects
The length for being connected to the path section 16b1 of the gas returning port of fluid reservoir 1021 is 10mm-15mm, facilitate insertion into 102 fluid reservoir of compressor
It being welded and fixed in 1021 gas returning port, the length that the muffler 13 is connected to the path section 16b2 of four-way valve 11 is 2mm-6mm,
It is welded and fixed in four-way valve 11.
As shown in figure 5, arrow A indicates direction upward in Fig. 5, arrow B indicates direction directed downwardly, it is preferable that described low
Pressure valve pipe 15 is connected to the opening up setting of the path section 16 of the four-way valve 11, can reduce the length of low pressure valve pipe 15,
To reduce the self weight of low pressure valve pipe 15, the rigidity of low pressure valve pipe 15 is effectively improved.The low pressure valve pipe 15 is connected to low pressure valve
The length of 108 path section 16c2 is 10mm-12mm, convenient for being welded and fixed with 106 pipeline of outdoor heat exchanger, the low pressure valve pipe
15 length for being connected to the path section 16c1 of four-way valve 11 are 2mm-4mm, convenient for being welded and fixed with four-way valve 11.
Preferably, 17 quantity of major diameter section is 2 or more, and the both ends of each major diameter section 17 are provided with path
Section 16.
In the present embodiment, the both ends of each major diameter section 17 are provided with path section 16 namely the major diameter section 17
It is spaced connection setting with the path section 16, since the both ends of at least whole pipeline are both provided with path section 16, and passes through path
The components connections such as 16 four-way valves 11 of section, therefore, when 17 quantity of major diameter section is 2 or more, 16 quantity of path section is total
Than major diameter section more than 17 1.Due to the major diameter section 17 and the connection setting of the path section 16 interval, and 17 quantity of major diameter section is
2 or more, sound-damping qualities can be greatly improved, especially shorter major diameter section 17 is matched with high frequency noise, can be greatly improved
The sound-damping qualities of high frequency noise.
In addition, to achieve the above object, the present invention also provides a kind of air-conditioner outdoor unit 100, the air-conditioner outdoor unit includes
Compressor 102, low pressure valve 108, outdoor heat exchanger 106 and piping components 10 as described above, wherein the exhaust pipe 12 is connected to
The four-way valve 11 and the compressor 102, the muffler 13 are connected to the liquid storage of the four-way valve 11 and the compressor 102
Tank 1021, the cold pipe 14 of valve are connected to the four-way valve 11 and the outdoor heat exchanger 106, and the low pressure valve pipe 15 is connected to described
Four-way valve 11 and the low pressure valve 108, the low pressure valve 108 are connected to air conditioner indoor unit.
Referring to Fig. 7, Fig. 7 is that traditional external silencer and piping components of the invention are emulated in the sound deadening capacity of different frequency
Figure, in the present embodiment, is defined as divergence ratio for the ratio between the circulation area of major diameter section and the circulation area of path section, implements one
In example, exhaust pipe divergence ratio is 2.52, and exhaust pipe length 686mm, muffler divergence ratio is 3.98, and return-air length of tube is
869mm, low pressure valve enlargement of pipe ratio are 4, and low pressure valve length of tube is 336mm, and the cold enlargement of pipe ratio of valve is 1.41, length 169mm.By
Fig. 7 is it is found that the sound deadening capacity of the application is obviously improved, in particular for low frequency noise sound deadening capacity disappearing than former external pipeline silencer
Volume becomes larger, and in comparison, the application noise elimination effect is significant.
It is the piping group of tradition external silencer and the application in a heating mode also referring to Fig. 8-10, Fig. 8-10
Part is respectively in the noise comparison diagram of 0-1000Hz frequency range, 0-200Hz frequency range, 0-300Hz frequency range, by Fig. 8-9 it is found that indoor unit is made an uproar
Sound low frequency at compressor frequency tripling (144Hz), frequency tripling transmits lower noise about 7dBA；As shown in Figure 10, indoor unit noise
At compressor quadruple (191Hz), low frequency transmits lower noise about 6.8dBA.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of piping components of air-conditioner outdoor unit, which is characterized in that the air-conditioner outdoor unit include compressor, low pressure valve and
Outdoor heat exchanger, the piping components include:
Four-way valve；
Exhaust pipe, the exhaust pipe are connected to the four-way valve and the compressor；
Muffler, the muffler are connected to the fluid reservoir of the four-way valve Yu the compressor；
The cold pipe of valve, the cold pipe of valve are connected to the four-way valve and the outdoor heat exchanger；
Low pressure valve pipe, the low pressure valve pipe are connected to the four-way valve and the low pressure valve；
Wherein, at least one of the cold pipe of the exhaust pipe, muffler, valve, low pressure valve pipe include at least two path sections and at least
One major diameter section, the path section is set to major diameter section both ends, and the circulation area of the path section is less than the major diameter
The circulation area of section.
2. the piping components of air-conditioner outdoor unit according to claim 1, which is characterized in that the exhaust pipe and the low pressure
In valve pipe, at least described exhaust pipe includes described two path sections and one major diameter section.
3. the piping components of air-conditioner outdoor unit according to claim 1, which is characterized in that the exhaust pipe and muffler
In, at least described muffler includes described two path sections and one major diameter section.
4. the piping components of air-conditioner outdoor unit according to claim 1, which is characterized in that the exhaust pipe, muffler, valve
Cold pipe, low pressure valve pipe respectively include at least described two path sections and one major diameter section.
5. the piping components of air-conditioner outdoor unit according to claim 1, which is characterized in that the major diameter section and path section it
Between be connected with changeover portion, the outer major diameter section described without leave of the changeover portion is gradually reduced to the path section.
6. the piping components of air-conditioner outdoor unit according to claim 1, which is characterized in that the major diameter section of the exhaust pipe is in
U-shaped is arranged upward at setting, the opening of two path sections for stating exhaust pipe, and the exhaust pipe is connected to the small of compressor
The length of diameter section is 10mm-12mm, and the path segment length that the exhaust pipe is connected to four-way valve is 2mm-4mm.
7. the piping components of air-conditioner outdoor unit according to claim 1, which is characterized in that the major diameter section packet of the muffler
Include the first U section and the second U section interconnected, first U section is connected with the downward opening fluid reservoir that is connected to
The path section of gas returning port, second U section are connected with the opening up path section for being connected to the four-way valve, wherein institute
Stating muffler and being connected to the length of path section of the gas returning port of fluid reservoir is 10mm-15mm, and the muffler is connected to four-way valve
Path section length be 2mm-6mm.
8. the piping components of air-conditioner outdoor unit according to claim 1, which is characterized in that the low pressure valve pipe is connected to institute
The opening up setting of the path section of four-way valve is stated, the length that the low pressure valve pipe is connected to the path section of low pressure valve is 10mm-
12mm, the length that the low pressure valve pipe is connected to the path section of four-way valve is 2mm-4mm.
9. the piping components of air-conditioner outdoor unit according to claim 1-8, which is characterized in that the major diameter number of segment
Amount is 2 or more, and the both ends of each major diameter section are provided with path section.
10. a kind of air-conditioner outdoor unit, which is characterized in that the air-conditioner outdoor unit include compressor, low pressure valve, outdoor heat exchanger and
Such as the described in any item piping components of claim 1-9, wherein the exhaust pipe is connected to the four-way valve and the compressor,
The muffler is connected to the fluid reservoir of the four-way valve Yu the compressor, and the cold pipe of valve is connected to the four-way valve and the room
External heat exchanger, the low pressure valve pipe are connected to the four-way valve and the low pressure valve, and the low pressure valve is connected to air conditioner indoor unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910365998.8A CN110056982A (en) | 2019-04-30 | 2019-04-30 | Air-conditioner outdoor unit and its piping components |
| PCT/CN2019/120651 WO2020220657A1 (en) | 2019-04-30 | 2019-11-25 | Air conditioner outdoor unit and piping assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910365998.8A CN110056982A (en) | 2019-04-30 | 2019-04-30 | Air-conditioner outdoor unit and its piping components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110056982A true CN110056982A (en) | 2019-07-26 |
Family
ID=67322013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910365998.8A Pending CN110056982A (en) | 2019-04-30 | 2019-04-30 | Air-conditioner outdoor unit and its piping components |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110056982A (en) |
| WO (1) | WO2020220657A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749130A (en) * | 2019-11-27 | 2020-02-04 | 广东美的制冷设备有限公司 | Piping assembly and refrigerating system |
| WO2020220657A1 (en) * | 2019-04-30 | 2020-11-05 | 邯郸美的制冷设备有限公司 | Air conditioner outdoor unit and piping assembly thereof |
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- 2019-11-25 WO PCT/CN2019/120651 patent/WO2020220657A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2020220657A1 (en) | 2020-11-05 |
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Application publication date: 20190726 |