CN104654667B - The outdoor unit modules of multiple on-line system and there is its multiple on-line system - Google Patents
The outdoor unit modules of multiple on-line system and there is its multiple on-line system Download PDFInfo
- Publication number
- CN104654667B CN104654667B CN201310606752.8A CN201310606752A CN104654667B CN 104654667 B CN104654667 B CN 104654667B CN 201310606752 A CN201310606752 A CN 201310606752A CN 104654667 B CN104654667 B CN 104654667B
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- Prior art keywords
- outdoor unit
- oil
- line system
- unit modules
- heat exchanger
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- 239000003507 refrigerant Substances 0.000 claims abstract description 67
- 239000007788 liquid Substances 0.000 claims abstract description 59
- 230000008014 freezing Effects 0.000 claims abstract description 8
- 238000007710 freezing Methods 0.000 claims abstract description 8
- 230000008676 import Effects 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 claims description 20
- 239000002826 coolant Substances 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 127
- 238000005057 refrigeration Methods 0.000 description 21
- 235000003642 hunger Nutrition 0.000 description 10
- 230000037351 starvation Effects 0.000 description 10
- 238000001914 filtration Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 239000010725 compressor oil Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides a kind of outdoor unit modules of multiple on-line system and there is its multiple on-line system.The outdoor unit modules of multiple on-line system, including：Outdoor unit heat exchanger；Liquid refrigerants circulation branch pipe, is connected with outdoor unit heat exchanger；Compressor；Oil eliminator, the refrigerant exit of oil eliminator are connected with outdoor unit heat exchanger, and the outlet of compressor and the refrigerant import of oil eliminator connect；Electric expansion valve, it is arranged on liquid refrigerants circulation branch pipe；Outdoor unit modules also include oil equalizing pipe, and the first end of oil equalizing pipe and the freezing oil export of oil eliminator connect, and the second end of oil equalizing pipe is connected on liquid refrigerants circulation branch pipe, and the second end of oil equalizing pipe is between electric expansion valve and outdoor unit heat exchanger.Technical scheme is oily using the pressure difference realization of itself, fairly simple compared with the prior art in structure.
Description
Technical field
The present invention relates to changing device technical field, a kind of outdoor unit modules in particular to multiple on-line system and
With its multiple on-line system.
Background technology
At present, in multiple on-line system, during compressor operating, must some refrigeration oil can be continuously from cylinder
In be forced out together with refrigerant and into oil eliminator, then average mark oil is completed by oil-balancing system.What multiple on-line system referred to
It is to have one or more outdoor unit modules to connect one or more indoor set modules.Outdoor unit modules mainly include compressor, oil
Separator, outdoor unit heat exchanger and necessary connecting pipe, indoor set module mainly include indoor set heat exchanger.Outdoor unit mould
Block is connected by drain pipeline and guide pipeline with indoor set module.When multiple outdoor unit modules are arranged in parallel, multiple indoor sets
When wired in parallel is set, the oil balance between multiple outdoor unit modules is realized by oil-balancing system, when refrigeration oil can not be returned continuously
When returning the outdoor unit modules of oil starvation, the pasta for the compressor for being bound to cause in the outdoor unit modules of oil starvation declines, until freezing
Oil cake exhausts, and compressor oil starvation occurs and burns phenomenon.So ensure that reliable, the average each outdoor unit modules that are assigned to of refrigeration oil are more
One of most important problem in designs of on-line system.At present, the way generally used is, for multiplex system, when multiple
When outdoor unit modules are arranged in parallel, an oil balance tube is drawn from the oil eliminator bottom of each outdoor unit, each oil balance tube is mutual again
It is connected, forms a closed oil circuit, for the refrigeration oil in system to be evenly distributed in the outdoor unit of oil starvation, each oil balance
Guan Shangxu sets equal fuel tap, check valve, filter and capillary.Said structure is complicated, in addition, each oil equalizing pipe belongs to external side
Formula, that is to say, that be arranged between each outdoor unit modules, rather than positioned at the inside of each outdoor unit modules, because of project installation and
During operation, the external factor such as personnel and nature, the outdoor unit modules of multiple on-line system are caused damage, such as external oil equalizing pipe holds
It is vulnerable to the collision of personnel, and causes system leakage etc..
The content of the invention
The present invention is intended to provide the outdoor unit modules and tool of multiple on-line system a kind of simple in construction and with oily effect
There is its multiple on-line system.
To achieve these goals, according to an aspect of the invention, there is provided a kind of outdoor unit mould of multiple on-line system
Block, including：Outdoor unit heat exchanger；Liquid refrigerants circulation branch pipe, is connected with outdoor unit heat exchanger；Compressor；Oil eliminator, oil
The refrigerant exit of separator is connected with outdoor unit heat exchanger, and the outlet of compressor and the refrigerant import of oil eliminator connect；
Electric expansion valve, it is arranged on liquid refrigerants circulation branch pipe；Outdoor unit modules also include oil equalizing pipe, first end and the oil of oil equalizing pipe
The freezing oil export connection of separator, the second end of oil equalizing pipe are connected on liquid refrigerants circulation branch pipe, the second end of oil equalizing pipe
Between electric expansion valve and outdoor unit heat exchanger.
Further, the freezing oil export of oil eliminator is located at the lower end of the oil eliminator.
Further, equal fuel tap is provided with oil equalizing pipe.
Further, the outdoor unit modules of multiple on-line system of the invention also include：Conducting is only allowed to be exchanged heat from outdoor unit
The check valve of the liquid refrigerants of device outflow, check valve and the liquid refrigerants branch pipe that circulates are connected and in parallel with electric expansion valve set
Put.
Further, the outdoor unit modules of multiple on-line system of the invention also include：Subcooler, it is arranged on liquid refrigerant stream
On logical branch pipe, the second end of oil equalizing pipe is between subcooler and outdoor unit heat exchanger.
Further, the outdoor unit modules of multiple on-line system of the invention also include：Oil fuel tube, one end are connected to oily separation
On device, fuel feeding valve is provided with oil fuel tube.
Further, the outdoor unit modules of multiple on-line system of the invention also include：First filter, it is cold to be arranged on liquid
Matchmaker circulates on branch pipe, and first filter is located between the second end and the outdoor unit heat exchanger of oil equalizing pipe.
Further, the outdoor unit modules of multiple on-line system of the invention also include：Second filter, it is cold to be arranged on liquid
Matchmaker circulates on branch pipe, and the second end of oil equalizing pipe is between the second filter and subcooler.
Further, compressor and oil eliminator are multiple that multiple compressors correspond company with multiple oil eliminators
Connect, oil equalizing pipe is connected with multiple oil eliminators respectively, and oil balancer is provided with oil equalizing pipe.
According to another aspect of the present invention, there is provided a kind of multiple on-line system, including：The multiple outdoor unit moulds being arranged in parallel
Block；The multiple indoor set modules being arranged in parallel, any indoor set module are circulated by liquid refrigerants runner pipe and gaseous coolant
Pipe is connected with any outdoor unit modules, and outdoor unit modules are the outdoor unit modules of above-mentioned multiple on-line system.
Apply the technical scheme of the present invention, when outdoor unit modules are in operation, compressor is in starting state, in each oil
From high pressure is quickly formed in device, oil eliminator is connected by oil equalizing pipe with liquid refrigerants circulation branch pipe, passes through multiple on-line system
Outdoor unit modules itself form pressure difference, by oil eliminator refrigeration oil press-in liquid refrigerants circulation branch pipe in, and with
Liquid refrigerant stream in liquid refrigerants circulation branch pipe enters the indoor set heat exchanger of indoor set module, due to the outdoor unit modules of oil starvation
Pressure it is smaller, refrigeration oil is assigned to by phase by the connecting line of indoor set heat exchanger and compressor in each outdoor unit modules
To in the compressor of oil starvation（That is refrigeration oil is assigned to the outdoor unit modules of relative oil starvation）, so as to play oil effect
Fruit.As the above analysis, the outdoor unit modules of multiple on-line system of the invention realize oil, structure using the pressure difference of itself
On it is fairly simple compared with the prior art.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the structural representation of the embodiment of the outdoor unit modules of the multiple on-line system according to the present invention；And
Fig. 2 shows the structural representation of the embodiment of the multiple on-line system according to the present invention.
Wherein, the accompanying drawing in above-mentioned figure is as follows：
1st, outdoor unit modules；2nd, indoor set module；3rd, liquid refrigerants runner pipe；4th, gaseous coolant runner pipe；10th, outdoor unit
Heat exchanger；11st, liquid refrigerants circulation branch pipe；12nd, electric expansion valve；13rd, subcooler；14th, check valve；15th, first filter；
16th, the second filter；17th, radiator fan；18th, four-way valve；21st, compressor；22nd, oil eliminator；23rd, oil equalizing pipe；24th, it is oily
Valve；26th, oil fuel tube；27th, fuel feeding valve.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, the outdoor unit modules of the multiple on-line system of the present embodiment include outdoor unit heat exchanger 10, liquid refrigerants
Circulate branch pipe 11, compressor 21, oil eliminator 22, oil equalizing pipe 23 and electric expansion valve 12.Liquid refrigerants circulation branch pipe 11 and room
Outer machine heat exchanger 10 is connected.Liquid refrigerants circulation branch pipe 11 belongs to the liquid that outdoor unit heat exchanger 10 is connected with indoor set heat exchanger
A part for state refrigerant runner pipe, outdoor unit heat exchanger 10 and the direct liquid refrigerants runner pipe of indoor set heat exchanger only circulate liquid
Refrigerant after change, in refrigeration, outdoor unit heat exchanger 10 serves as condenser, and indoor set heat exchanger serves as evaporator；In heating,
Outdoor unit heat exchanger 10 serves as evaporator, and indoor set heat exchanger serves as condenser.The refrigerant exit and outdoor unit of oil eliminator 22
Heat exchanger 10 is connected, and the outlet of compressor 21 is connected with the refrigerant import of oil eliminator 22, the first end of oil equalizing pipe 23 with
The freezing oil export connection of oil eliminator 22, the second end of oil equalizing pipe 23 are connected on liquid refrigerants circulation branch pipe 11, oil equalizing pipe
23 the second end is between electric expansion valve 12 and outdoor unit heat exchanger 10.Electric expansion valve 12 is arranged on liquid refrigerants circulation
On branch pipe 11.Electric expansion valve 12 can prevent that liquid refrigerants is back in outdoor unit heat exchanger 10 in refrigeration, influences this reality
Apply the efficiency of the outdoor unit modules of the multiple on-line system of example.The quantity of compressor 21 and oil eliminator 22 can be one can also
It is multiple, the quantity of oil equalizing pipe 23 be able to can also be differed with the quantity of oil eliminator 22 with equal, and oil eliminator 22 is connected with
At least one compressor 21, multiple compressors 21 are connected in parallel to each other setting, and multiple oil eliminators 22 are connected in parallel to each other setting.Preferably,
Four-way valve 18 is connected between oil eliminator 22 and outdoor unit heat exchanger 10.
Using the outdoor unit modules of the multiple on-line system of the present embodiment, when outdoor unit modules are in operation, compressor is in
Starting state, quickly forms high pressure in each oil eliminator 22, and oil eliminator 22 passes through oil equalizing pipe 23 and liquid refrigerants circulation branch
Pipe 11 is connected, and pressure difference is formed by the outdoor unit modules itself of multiple on-line system, by the refrigeration oil in oil eliminator 22
It is pressed into liquid refrigerants circulation branch pipe 11, and enters the room of indoor set module with the liquid refrigerant stream in liquid refrigerants circulation branch pipe 11
In interior machine heat exchanger, because the pressure of the outdoor unit modules of oil starvation is smaller, pass through indoor set heat exchanger and each outdoor unit modules
Refrigeration oil is assigned in the compressor 21 of relative oil starvation by the connecting line of middle compressor 21（That is refrigeration oil is distributed
To the outdoor unit modules of relative oil starvation）, so as to play oily effect.As the above analysis, the multiple on-line system of the present embodiment
Outdoor unit modules realize oil using the pressure difference of itself, it is fairly simple compared with the prior art in structure.In addition, the present embodiment
The oil equalizing pipe 23 of outdoor unit modules of multiple on-line system belong to built-in mode, can effectively avoid oil equalizing pipe 23 by personnel
Collision, and inscribe situations such as cause system to reveal.Further, since the second end of oil equalizing pipe 23 is located at electric expansion valve 12 and outdoor
Between machine heat exchanger 10, therefore, extra check valve need not be set to can be achieved to prevent liquid refrigerants from circulating on oil equalizing pipe 23
Liquid refrigerants in branch pipe 11 is back in oil eliminator 22, and then prevents a certain outdoor unit modules from accumulating liquid refrigerants for a long time,
Other outdoor unit modules are caused to lack refrigerant protection etc..
In the present embodiment, the freezing oil export of oil eliminator 22 is located at the lower end of the oil eliminator 22.In such manner, it is possible to more
Easily by oil eliminator 22 in refrigeration oil press-in liquid refrigerants circulation branch pipe 11, and have can for refrigeration oil in oil eliminator 22
It can be pressed into liquid refrigerants circulation branch pipe 11, improve the utilization rate of refrigeration oil.
As shown in figure 1, in the present embodiment, equal fuel tap 24 is provided with oil equalizing pipe 23.Equal fuel tap 24 is used for realizing equal oil
The break-make of pipe 23.After outdoor unit modules receive oil order, equal fuel tap 24 will be in opening, now, due to equal fuel tap 24
Unlatching, oil eliminator 22 and liquid refrigerants circulation branch pipe 11 forms path, and refrigeration oil can smoothly enter liquid refrigerant stream
In logical branch pipe 11, and indoor set heat exchanger is flowed to the liquid refrigerants in liquid refrigerants circulation branch pipe 11.
As shown in figure 1, the outdoor unit modules in the multiple on-line system of the present embodiment also include only allowing conducting from outdoor unit
The check valve 14 for the liquid refrigerants that heat exchanger 10 flows out, check valve 14 is connected with liquid refrigerants circulation branch pipe 11 and and electronic expansion
Valve 12 is in parallel, and the second end of oil equalizing pipe 23 is between check valve 14 and outdoor unit heat exchanger 10.The setting increase of check valve 14
The pipeline that one outdoor unit heat exchanger 10 connects with indoor set heat exchanger.
As shown in figure 1, the outdoor unit modules of the multiple on-line system of the present embodiment also include subcooler 13, subcooler 13 is set
On liquid refrigerants circulation branch pipe 11, the second end of oil equalizing pipe 23 is between subcooler 13 and outdoor unit heat exchanger 10.Supercooling
Device 13 can adjust the degree of supercooling of liquid refrigerants, whole where the outdoor unit modules for the multiple on-line system for improving the present embodiment
The refrigeration and heating efficiency of system.
As shown in figure 1, the outdoor unit modules in the multiple on-line system of the present embodiment also include oil fuel tube 26, oil fuel tube 26
One end is connected on oil eliminator 22, and fuel feeding valve 27 is provided with oil fuel tube 26.By setting oil fuel tube 26 to be separated to oil
Device 22 provides extra refrigeration oil, to avoid the outdoor unit modules of whole multiple on-line system from lacking refrigeration oil.
As shown in figure 1, the outdoor unit modules of the multiple on-line system of the present embodiment also include first filter 15, the first filtering
Device 15 is arranged on liquid refrigerants circulation branch pipe 11, and the second end of oil equalizing pipe 23 is located at first filter 15 and outdoor unit heat exchanger
Between 10.First filter 15 can filter to the liquid refrigerants flowed out in outdoor unit heat exchanger 10.
As shown in figure 1, the outdoor unit modules of the multiple on-line system of the present embodiment also include the second filter 16, the second filtering
Device 16 is arranged on liquid refrigerants circulation branch pipe 11, the second end of oil equalizing pipe 23 positioned at the second filter 16 and subcooler 13 it
Between.Second filter 16 can filter to the liquid refrigerants flowed out in subcooler 13.
As shown in figure 1, the outdoor unit modules of the multiple on-line system of the present embodiment also include radiator fan 17, radiator fan 17
It is correspondingly arranged with outdoor unit heat exchanger 10.Quickly the temperature of outdoor unit heat exchanger 10 can be adjusted by radiator fan 17
It is whole, make the temperature of outdoor unit heat exchanger 10 closer to the temperature of outside air.
In the present embodiment, compressor 21 and oil eliminator 22 are multiple multiple oil eliminators 22 and multiple compressors
21 are connected one to one, and oil equalizing pipe 23 is connected with multiple oil eliminators 22 respectively, so, the refrigeration oil in multiple oil eliminators 22
It is pooled in oil equalizing pipe 23.Oil balancer is provided with oil equalizing pipe 23（Not shown in figure）.The refrigeration oil being pooled in oil equalizing pipe 23
Liquid refrigerants circulation branch pipe 11 is uniformly and stably flowed in the presence of oil balancer, oil equalizing pipe 23 preferably only has one.
As shown in Fig. 2 present invention also provides a kind of multiple on-line system, the multiple on-line system of the present embodiment is set including parallel connection
The multiple outdoor unit modules 1 put and the multiple outdoor unit modules 1 being arranged in parallel.Any indoor set module 2 passes through liquid refrigerants
Runner pipe 3（Solid line）And gaseous coolant runner pipe 4（Dotted line）It is connected with any indoor set module 2, outdoor unit modules 1 are above-mentioned
The outdoor unit modules of the multiple on-line system of embodiment.The multiple on-line system of the present embodiment structure on the basis of oily effect is simpler
It is single.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (9)
1. a kind of outdoor unit modules of multiple on-line system, including：
Outdoor unit heat exchanger（10）；
Liquid refrigerants circulation branch pipe（11）, with the outdoor unit heat exchanger（10）It is connected；
Compressor（21）；
Oil eliminator（22）, the oil eliminator（22）Refrigerant exit and the outdoor unit heat exchanger（10）It is connected, it is described
Compressor（21）Outlet and the oil eliminator（22）Refrigerant import connection；
Electric expansion valve（12）, it is arranged on the liquid refrigerants circulation branch pipe（11）On；
Characterized in that, the outdoor unit modules also include oil equalizing pipe（23）, the oil equalizing pipe（23）First end and the oil
Separator（22）Freezing oil export connection, the oil equalizing pipe（23）The second end be connected to liquid refrigerants circulation branch pipe
（11）On, the oil equalizing pipe（23）The second end be located at the electric expansion valve（12）And outdoor unit heat exchanger（10）Between；
Oil fuel tube（26）, one end is connected to the oil eliminator（22）On, the oil fuel tube（26）On be provided with fuel feeding valve（27）.
2. the outdoor unit modules of multiple on-line system according to claim 1, it is characterised in that the oil eliminator（22）'s
Freezing oil export is located at the oil eliminator（22）Lower end.
3. the outdoor unit modules of multiple on-line system according to claim 1, it is characterised in that the oil equalizing pipe（23）On set
It is equipped with equal fuel tap（24）.
4. the outdoor unit modules of multiple on-line system according to claim 1, it is characterised in that also include：
Only allow conducting from the outdoor unit heat exchanger（10）The check valve of the liquid refrigerants of outflow（14）, the check valve（14）
With liquid refrigerants circulation branch pipe（11）Connect and with the electric expansion valve（12）It is arranged in parallel.
5. the outdoor unit modules of multiple on-line system according to claim 1, it is characterised in that also include：
Subcooler（13）, it is arranged on the liquid refrigerants circulation branch pipe（11）On, the oil equalizing pipe（23）The second end be located at institute
State subcooler（13）With the outdoor unit heat exchanger（10）Between.
6. the outdoor unit modules of multiple on-line system according to claim 1, it is characterised in that also include：
First filter（15）, it is arranged on the liquid refrigerants circulation branch pipe（11）On, the first filter（15）Positioned at institute
State oil equalizing pipe（23）The second end and the outdoor unit heat exchanger（10）Between.
7. the outdoor unit modules of multiple on-line system according to claim 5, it is characterised in that also include：
Second filter（16）, it is arranged on the liquid refrigerants circulation branch pipe（11）On, the oil equalizing pipe（23）The second end position
In second filter（16）With the subcooler（13）Between.
8. the outdoor unit modules of multiple on-line system according to claim 1, it is characterised in that the compressor（21）And institute
State oil eliminator（22）It is multiple, the multiple compressor（21）With the multiple oil eliminator（22）Connect one to one,
The oil equalizing pipe（23）Respectively with the multiple oil eliminator（22）Connection, the oil equalizing pipe（23）On be provided with oil balancer.
9. a kind of multiple on-line system, including：
The multiple outdoor unit modules being arranged in parallel（1）；
The multiple indoor set modules being arranged in parallel（2）, any indoor set module（2）Pass through liquid refrigerants runner pipe（3）With
And gaseous coolant runner pipe（4）With any outdoor unit modules（1）Connection, it is characterised in that the outdoor unit modules（1）For
The outdoor unit modules of multiple on-line system any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310606752.8A CN104654667B (en) | 2013-11-25 | 2013-11-25 | The outdoor unit modules of multiple on-line system and there is its multiple on-line system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310606752.8A CN104654667B (en) | 2013-11-25 | 2013-11-25 | The outdoor unit modules of multiple on-line system and there is its multiple on-line system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104654667A CN104654667A (en) | 2015-05-27 |
| CN104654667B true CN104654667B (en) | 2017-11-21 |
Family
ID=53246089
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310606752.8A Expired - Fee Related CN104654667B (en) | 2013-11-25 | 2013-11-25 | The outdoor unit modules of multiple on-line system and there is its multiple on-line system |
Country Status (1)
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| CN (1) | CN104654667B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11107966A (en) * | 1997-10-06 | 1999-04-20 | Mitsubishi Electric Corp | Air conditioning device |
| JP4108957B2 (en) * | 2001-10-19 | 2008-06-25 | 東芝キヤリア株式会社 | Refrigeration equipment |
| TWI301188B (en) * | 2002-08-30 | 2008-09-21 | Sanyo Electric Co | Refrigeant cycling device and compressor using the same |
| CN100549566C (en) * | 2006-11-10 | 2009-10-14 | 海尔集团公司 | A kind of air conditioner oil returning system |
| CN103375856A (en) * | 2012-04-27 | 2013-10-30 | 广州科汇成科技服务有限公司 | Frequency conversion multi-connection type central air conditioner |
| CN202692268U (en) * | 2012-08-02 | 2013-01-23 | 珠海格力电器股份有限公司 | Multi-connected machine modularization system |
| CN203083190U (en) * | 2013-03-05 | 2013-07-24 | 昆山台佳机电有限公司 | Multi-compressor efficient set |
| CN203586612U (en) * | 2013-11-25 | 2014-05-07 | 珠海格力电器股份有限公司 | Multi-online system and outdoor unit module thereof |
-
2013
- 2013-11-25 CN CN201310606752.8A patent/CN104654667B/en not_active Expired - Fee Related
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| CN104654667A (en) | 2015-05-27 |
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