CN105758070B - Air conditioning system and heat dissipation method of compressor driving plate - Google Patents
Air conditioning system and heat dissipation method of compressor driving plate Download PDFInfo
- Publication number
- CN105758070B CN105758070B CN201610116544.3A CN201610116544A CN105758070B CN 105758070 B CN105758070 B CN 105758070B CN 201610116544 A CN201610116544 A CN 201610116544A CN 105758070 B CN105758070 B CN 105758070B
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- Prior art keywords
- conditioning system
- refrigerant
- air
- compressor
- plate
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000017525 heat dissipation Effects 0.000 title abstract description 3
- 239000003507 refrigerant Substances 0.000 claims abstract description 69
- 238000001816 cooling Methods 0.000 claims abstract description 54
- 238000004781 supercooling Methods 0.000 claims description 41
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000005057 refrigeration Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying 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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/02—Subcoolers
-
- 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
- F25B41/40—Fluid line arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention provides an air conditioning system and a heat dissipation method of a compressor driving plate. The air conditioning system includes a compressor and a subcooler. The subcooler comprises a cooling pipe and a subcooled pipe, and the cooling pipe is used for subcooling the subcooled pipe. The air conditioning system further includes a compressor drive plate mounted at a downstream location of the cooling tube via a heat exchange assembly. By applying the technical scheme of the invention, the running performance of the air conditioning system can be improved by utilizing the heat exchange between the flowing refrigerant and the compressor driving plate.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to the radiating of a kind of air-conditioning system and driven compressor plate
Method.
Background technology
At this stage, the energy saving and efficiency increasing technology of multi-gang air-conditioner product, can be referred to as to make rapid progress.It is each period, each
Individual stage, multi-connected machine product can all obtain significant progress.Especially with the gradual use of high-efficiency frequency conversion enthalpy-increasing compressor,
The technological innovation of another wheel is brought, particularly in the temperature of reduction driven compressor plate, has new thinking and new scheme.
Cooling of traditional multi-connected machine to driven compressor plate, typically employ air-cooled cooling and radiated both technologies with condensation refrigerant.
The air-cooled technology that cools, it is more traditionally to the falling temperature technique of driven compressor plate, its principle is using outer
The drainage of blower fan, by the low temperature wind introduction machine of external environment, pass through the radiating of cold wind and condenser and driven compressor plate
The heat convection effect of piece, has taken away both heat of high temperature, so as to the effect of cooling reached.The shortcomings that this technology, is just
It is that efficiency is low, especially under hot environment, effect of this technology to reducing driven compressor plate temperature is extremely limited.
Refrigerant heat dissipation technology is condensed, is the new falling temperature technique of comparison.As shown in figure 1, its principle is to utilize to go out from condenser 1
The relatively low liquid refrigerants of next temperature is taken away compressor using conductive force and driven by driven compressor plate radiating subassembly 2
The temperature of dynamic plate, is finally reached the effect for reducing module temperature.The deficiency of this technology is the degree of supercooling for reducing refrigerant,
Because after refrigerant fin, subcooler 3 can be passed through again, the liquid refrigerant that should be come out originally from condenser is directly entered
The refrigerant that subcooler is further subcooled, it but have passed through the heating of driven compressor plate fin and be subcooled again by subcooler, its reality
Supercooling effect still can reduce the refrigerating efficiency reduction for a lot, ultimately resulting in air-conditioning system.
The content of the invention
It is existing to solve it is a primary object of the present invention to provide a kind of heat dissipating method of air-conditioning system and driven compressor plate
There is the problem of refrigerating efficiency of air-conditioning system being caused to reduce the cooling of driven compressor plate using refrigerant in technology.
To achieve these goals, according to an aspect of the invention, there is provided a kind of air-conditioning system, including compressor and
Subcooler, subcooler include cooling tube and supercooling tube, and cooling tube is used to supercooling tube be subcooled, and air-conditioning system also includes compression
Machine driving plate, driven compressor plate are arranged on the downstream position of cooling tube by heat-exchanging component.
Further, air-conditioning system also included cold loop, crossed downstream and pressure that cold loop is connected to driven compressor plate
Between contracting machine.
Further, cross on cold loop and be provided with cooling valve.
Further, air-conditioning system also includes increasing enthalpy loop, and increasing enthalpy loop is connected in parallel on compressor with crossing cold loop
Between the downstream of driving plate and compressor.
Further, increasing enthalpy valve is provided with increasing enthalpy loop.
To achieve these goals, according to an aspect of the invention, there is provided a kind of radiating side of driven compressor plate
Method, including the downstream position by driven compressor plate by heat-exchanging component installed in cooling tube in subcooler, pass through cooling tube
Refrigerant after middle heat exchange cools to driven compressor plate.
Further, when air conditioner is in refrigeration mode, first the refrigerant for passing through driven compressor plate is subcooled, then
Refrigerant after supercooling is led into back compressor.
Further, by cooling down valve to being subcooled by the refrigerant of driven compressor plate.
Further, when air conditioner is in heating mode, increasing enthalpy first is carried out to the refrigerant by driven compressor plate, then
Refrigerant after increasing enthalpy is led into back compressor.
Further, by increasing enthalpy valve to carrying out increasing enthalpy by the refrigerant of driven compressor plate.
Apply the technical scheme of the present invention, when air-conditioning system is freezed, refrigerant can all pass through subcooler, enter in refrigerant
When entering subcooler, the refrigerant for having part enters cooling tube, and the refrigerant of remainder can enter in supercooling tube.It is cold in cooling tube
Matchmaker can be depressurized cooling so that the refrigerant in supercooling tube to be subcooled.Refrigerant in cooling tube is after supercooling tube, and temperature is still
It is so relatively low, driven compressor plate is arranged on to the downstream position of cooling tube by heat-exchanging component, can just be utilized in cooling tube
Refrigerant radiates to driven compressor plate, quickly takes away the heat on driven compressor plate.Further, since driven compressor plate
The downstream position of cooling tube is arranged on, supercooling step that can't be to original air-conditioning system produces interference, therefore will not shadow
Ring the supercooling effect of subcooler.When air-conditioning system is heated, can equally it utilize cooling tube that supercooling tube is subcooled, in cooling tube
Refrigerant after supercooling tube can pass through driven compressor plate absorption walk driven compressor plate on heat energy, and then using compression
Heat energy in machine driving plate is heated, and improves the heating efficiency of air-conditioning system.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The Figure of description for forming the part of the present invention 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 schematic diagram that air-conditioning system is cooled to driven compressor plate in the prior art；
Fig. 2 shows the schematic diagram of the refrigeration mode of the embodiment of the air-conditioning system according to the present invention；
Fig. 3 shows the schematic diagram of the heating mode of the embodiment of the air-conditioning system according to the present invention.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
10th, compressor；20th, subcooler；21st, cooling tube；22nd, supercooling tube；30th, cold loop is crossed；31st, valve is cooled down；40th, increasing enthalpy
Loop；41st, increasing enthalpy valve；50th, driven compressor plate；60th, outdoor heat exchanger；70th, indoor heat exchanger；80th, four-way valve；90th, gas-liquid
Separator.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, it should all belong to the model that the present invention protects
Enclose.
Fig. 2 and Fig. 3 shows the air-conditioning system of the present embodiment, and the air-conditioning system includes compressor 10 and subcooler 20.Its
In, subcooler 20 includes cooling tube 21 and supercooling tube 22, and cooling tube 21 is used to supercooling tube 22 be subcooled.Air-conditioning system is also wrapped
Driven compressor plate 50 is included, driven compressor plate 50 is arranged on the downstream position of cooling tube 21 by heat-exchanging component.Work as air-conditioning
When system is freezed, refrigerant can all pass through subcooler 20, when refrigerant enters subcooler 20, have part refrigerant enter it is cold
But pipe 21, the refrigerant of remainder can enter in supercooling tube 22.Refrigerant in cooling tube 21 can be depressurized cooling with to supercooling tube
Refrigerant in 22 is subcooled.Refrigerant in cooling tube 21 is after supercooling tube 22, and temperature is still relatively low, by driven compressor
Plate 50 is arranged on the downstream position of cooling tube 21 by heat-exchanging component, just the refrigerant in cooling tube 21 can be utilized to drive compressor
Dynamic plate 50 is radiated, and quickly takes away the heat on driven compressor plate 50.Therefore, air-conditioning can be ensured under the conditions of at higher temperature
The normal operation of system, without because the temperature of driven compressor plate 50 is too high and frequency reducing, extend the high temperature of air-conditioning system
The use range of refrigeration.Further, since driven compressor plate 50 has been arranged on the downstream position of cooling tube 21, can't be to original
The supercooling step of first air-conditioning system produces interference, therefore does not interfere with the supercooling effect of subcooler, ensure that unit mass is freezed
The increase of amount, and then improve refrigerating capacity and coefficient of refrigerating performance.
When air-conditioning system is heated, supercooling tube 22 can be equally subcooled using cooling tube 21, it is cold in cooling tube 21
Matchmaker can walk the heat energy on driven compressor plate 50 after supercooling tube 22 by the absorption of driven compressor plate 50, and then utilize pressure
Heat energy in contracting machine driving plate 50 is heated, and improves the heating efficiency of air-conditioning system.
Specifically, as shown in Figures 2 and 3, when air-conditioning system is freezed, refrigerant flows out from compressor 10, via outdoor
Heat exchanger 60 is entered back into subcooler, has been divided into two-way before refrigerant enters subcooler, all the way into supercooling tube 22, another way
Enter cooling tube 21.Refrigerant into supercooling tube 22 is depressured after cooling to the refrigerant progress in supercooling tube 22 via subcooler valve
Supercooling.Refrigerant in supercooling tube 22 is sent into indoor heat exchanger 70 after being too cold and carries out refrigeration cool-down, finally via gas-liquid separator
90 return to compressor 10.Switch four-way valve 80, air-conditioning system is switched to heating, and refrigerant flows out from compressor 10, via interior
The heat release of heat exchanger 70, subsequently enters subcooler.Similarly, two-way has been divided into it before refrigerant enters subcooler, all the way into supercooling tube
In 22, another way enters cooling tube 21, and the refrigerant into supercooling tube 22 is depressured after cooling to supercooling tube 22 via subcooler valve
In refrigerant be subcooled.Refrigerant in supercooling tube 22 is sent into outdoor heat exchanger 60 after being too cold and absorbed heat, finally via gas-liquid point
Compressor 10 is returned to from device 90.
As shown in Fig. 2 the air-conditioning system of the present embodiment also included cold loop 30, cross cold loop 30 and be connected to compressor drive
Between the downstream of dynamic plate 50 and compressor 10.It can increase the degree of supercooling of refrigerant in cooling tube 21 by crossing cold loop 30, enter one
Step reduces the temperature of the refrigerant so that the refrigerant heat exchange efficiency under refrigerating environment is higher.Optionally, in the present embodiment, it is subcooled
Cooling valve 31 is provided with loop 30, is subcooled by cooling down valve 31 to crossing the refrigerant in cold loop 30.
As shown in figure 3, the air-conditioning system of the present embodiment also includes increasing enthalpy loop 40, increasing enthalpy loop 40 is with crossing cold loop 30 simultaneously
It is connected between the downstream of driven compressor plate 50 and compressor 10 connection.When air-conditioning system is in heating mode, from supercooling
Temperature of the refrigerant that device 20 comes out because absorbing driven compressor plate 50, can further improve compressor 10 into compressor 10
Temperature, so as to improve the condensation temperature of refrigerant, and then improve heating capacity., can be because spraying enthalpy particularly on low-temperature heating
Amount increases, thus the meeting of the deduction of heating capacity further can be increased.Optionally, increasing enthalpy valve is provided with increasing enthalpy loop 40
41。
Present invention also offers a kind of heat dissipating method of driven compressor plate, the heat dissipating method is included driven compressor plate
50 are arranged on the downstream position of cooling tube 21 in subcooler 20 by heat-exchanging component, pass through the refrigerant after being exchanged heat in cooling tube 21
Driven compressor plate 50 is cooled.It can both be realized to driven compressor by the heat dissipating method when air-conditioning system is freezed
Effective radiating of plate 50, and pass through supercooling tube 22 because driven compressor plate 50 has been arranged in subcooler 20 on cooling tube 21
Downstream position, supercooling step that can't be to original air-conditioning system produces interference, therefore does not interfere with the supercooling of subcooler
Effect.When air-conditioning system heats, the heat energy on driven compressor plate 50 can be taken away by the refrigerant in cooling tube 21, effectively
Ground is heated using the heat energy on driven compressor plate 50, improves the heating efficiency of air-conditioning system.
Above-mentioned heat dissipating method also includes：When air conditioner is in refrigeration mode, first to by driven compressor plate 50
Refrigerant is subcooled, then the refrigerant after supercooling is led to back into compressor 10.By to being carried out by the refrigerant of driven compressor plate 50
Supercooling, it can further reduce the temperature of the refrigerant so that the refrigerant heat exchange efficiency under refrigerating environment is higher.Optionally, pass through
Cooling valve 31 by the refrigerant of driven compressor plate 50 to being subcooled.
The heat dissipating method of the present invention also includes：When air conditioner is in heating mode, first to passing through driven compressor plate 50
Refrigerant carry out increasing enthalpy, then the refrigerant after increasing enthalpy is led into back compressor 10.The refrigerant come out from subcooler 20 absorbs compressor
The temperature of driving plate 50, compressor 10 can be further improved by carrying out increasing enthalpy to the refrigerant by driven compressor plate 50
Temperature, so as to improve the condensation temperature of refrigerant, and then improve heating capacity., can be because of spray enthalpy amount particularly on low-temperature heating
Increase, thus the meeting of the deduction of heating capacity can further be increased.Optionally, by increasing enthalpy valve 41 to passing through driven compressor plate
50 refrigerant carries out increasing enthalpy.
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 (10)
1. a kind of air-conditioning system, including compressor (10) and subcooler (20), the subcooler (20) include cooling tube (21) and
Supercooling tube (22), the cooling tube (21) are used to the supercooling tube (22) be subcooled, and the air-conditioning system also includes compression
Machine driving plate (50), it is characterised in that the driven compressor plate (50) is arranged on the cooling tube (21) by heat-exchanging component
Downstream position.
2. air-conditioning system according to claim 1, it is characterised in that the air-conditioning system also included cold loop (30),
The cold loop (30) of crossing is connected between downstream and the compressor (10) of the driven compressor plate (50).
3. air-conditioning system according to claim 2, it is characterised in that described cross on cold loop (30) is provided with cooling valve
(31)。
4. air-conditioning system according to claim 2, it is characterised in that the air-conditioning system also includes increasing enthalpy loop (40),
The increasing enthalpy loop (40) and downstream and the institute crossed cold loop (30) and be connected in parallel on the driven compressor plate (50)
State between compressor (10).
5. air-conditioning system according to claim 4, it is characterised in that be provided with increasing enthalpy valve on the increasing enthalpy loop (40)
(41)。
6. a kind of heat dissipating method of driven compressor plate, it is characterised in that including driven compressor plate (50) is passed through into heat exchange group
Part is arranged on the downstream position of cooling tube (21) in subcooler (20), passes through the refrigerant pair after being exchanged heat in the cooling tube (21)
The driven compressor plate (50) is cooled.
7. heat dissipating method according to claim 6, it is characterised in that when air conditioner is in refrigeration mode, first to passing through
The refrigerant of the driven compressor plate (50) is subcooled, then the refrigerant after supercooling is led to back into compressor (10).
8. heat dissipating method according to claim 7, it is characterised in that by cooling down valve (31) to being driven by the compressor
The refrigerant of dynamic plate (50) is subcooled.
9. heat dissipating method according to claim 6, it is characterised in that when air conditioner is in heating mode, first to passing through
The refrigerant of the driven compressor plate (50) carries out increasing enthalpy, then the refrigerant after increasing enthalpy is led to back into compressor (10).
10. heat dissipating method according to claim 9, it is characterised in that by increasing enthalpy valve (41) to passing through the compressor
The refrigerant of driving plate (50) carries out increasing enthalpy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610116544.3A CN105758070B (en) | 2016-02-29 | 2016-02-29 | Air conditioning system and heat dissipation method of compressor driving plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610116544.3A CN105758070B (en) | 2016-02-29 | 2016-02-29 | Air conditioning system and heat dissipation method of compressor driving plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105758070A CN105758070A (en) | 2016-07-13 |
| CN105758070B true CN105758070B (en) | 2018-01-23 |
Family
ID=56332354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610116544.3A Active CN105758070B (en) | 2016-02-29 | 2016-02-29 | Air conditioning system and heat dissipation method of compressor driving plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105758070B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637586A (en) * | 2020-05-27 | 2020-09-08 | 宁波奥克斯电气股份有限公司 | Air conditioner compressor driving plate cooling device, control method and air conditioner |
| CN111457609B (en) * | 2020-06-22 | 2020-09-22 | 烟台和裕机电工程有限公司 | Compression type refrigerating machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5214928A (en) * | 1991-04-02 | 1993-06-01 | Omega Enterprises, Inc. | Refrigeration apparatus and methods |
| JPH11182478A (en) * | 1997-12-24 | 1999-07-06 | Kobe Steel Ltd | Screw type refrigerating machine |
| CN1641276A (en) * | 2004-01-14 | 2005-07-20 | 三星电子株式会社 | Air conditioner |
| CN203671769U (en) * | 2013-12-18 | 2014-06-25 | 广东美的制冷设备有限公司 | Cooling and heating type air conditioner and single cooling type air conditioner |
| CN104236155A (en) * | 2013-06-20 | 2014-12-24 | 青岛海尔空调电子有限公司 | Air conditioning system with coolant supercooling, defrosting and heating functions and control method thereof |
| CN204612222U (en) * | 2015-05-11 | 2015-09-02 | 广东美的暖通设备有限公司 | There is refrigeration system and the air-conditioner of refrigerating function |
| CN105135515A (en) * | 2012-03-30 | 2015-12-09 | 艾默生环境优化技术有限公司 | Heat pump system |
| CN205403233U (en) * | 2016-02-29 | 2016-07-27 | 珠海格力电器股份有限公司 | Air conditioning system |
-
2016
- 2016-02-29 CN CN201610116544.3A patent/CN105758070B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5214928A (en) * | 1991-04-02 | 1993-06-01 | Omega Enterprises, Inc. | Refrigeration apparatus and methods |
| JPH11182478A (en) * | 1997-12-24 | 1999-07-06 | Kobe Steel Ltd | Screw type refrigerating machine |
| CN1641276A (en) * | 2004-01-14 | 2005-07-20 | 三星电子株式会社 | Air conditioner |
| CN105135515A (en) * | 2012-03-30 | 2015-12-09 | 艾默生环境优化技术有限公司 | Heat pump system |
| CN104236155A (en) * | 2013-06-20 | 2014-12-24 | 青岛海尔空调电子有限公司 | Air conditioning system with coolant supercooling, defrosting and heating functions and control method thereof |
| CN203671769U (en) * | 2013-12-18 | 2014-06-25 | 广东美的制冷设备有限公司 | Cooling and heating type air conditioner and single cooling type air conditioner |
| CN204612222U (en) * | 2015-05-11 | 2015-09-02 | 广东美的暖通设备有限公司 | There is refrigeration system and the air-conditioner of refrigerating function |
| CN205403233U (en) * | 2016-02-29 | 2016-07-27 | 珠海格力电器股份有限公司 | Air conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105758070A (en) | 2016-07-13 |
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