CN104879974A - Refrigeration system for air conditioner, method and apparatus for controlling defrosting, and air conditioner - Google Patents
Refrigeration system for air conditioner, method and apparatus for controlling defrosting, and air conditioner Download PDFInfo
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- CN104879974A CN104879974A CN201510237645.1A CN201510237645A CN104879974A CN 104879974 A CN104879974 A CN 104879974A CN 201510237645 A CN201510237645 A CN 201510237645A CN 104879974 A CN104879974 A CN 104879974A
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- heat exchanger
- refrigeration system
- plate type
- compressor
- type heat
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- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/021—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit
- F25B2313/0211—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit the auxiliary heat exchanger being only used during defrosting
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a refrigeration system for air conditioner, a method and an apparatus for controlling defrosting, and an air conditioner. The refrigeration system herein comprises a compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger, and a gas-liquid separation device; a plate-type heat exchanger, an outlet of the outdoor heat exchanger being connected to a first route inlet of the plate type heat exchanger, a first route outlet of the plate type heat exchanger being connected to a second route inlet of the plate type heat exchanger and an inlet of the indoor heat exchanger, a second route outlet of the plate type heat exchanger being connected to a middle-pressure inlet of the compressor and an inlet of the gas-liquid separation device, an outlet of the gas-liquid separation device being connected to a low-pressure inlet of the compressor; a first solenoid valve being arranged on a pipeline which is between the second route outlet of the plate type heat exchanger and the middle-pressure inlet of the compressor; a second solenoid valve being arranged on a pipeline which is between the second route outlet of the plate type heat exchanger and the inlet of the gas-liquid separation device. The technical solution of the present invention has the advantages of defrosting with high efficiency and fast speed, provided that the air conditioner has excellent heating effect and system stability.
Description
Technical field
The present invention relates to air-conditioner technical field, in particular to a kind of refrigeration system for air-conditioner, a kind of defrosting control method of refrigeration system, a kind of defrosting control device of refrigeration system and a kind of air-conditioner.
Background technology
When air-conditioner runs heating mode at low ambient temperatures, when outdoor heat exchanger surface temperature is lower than the dew-point temperature of surrounding air and when being less than zero degree, outdoor heat exchanger surface just there will be frost, and frost layer affects outdoor heat exchanger and surrounding environment carries out heat exchange, and then the heating effect of air-conditioner is caused obviously to decline.
At present, the Defrost method proposed in correlation technique is perfect not, easily occurs the problem controlling to there is relatively large deviation with real defrosting situation.Particularly, may occur that defrosting is not enough on the one hand, the frost that outdoor heat exchanger condenses melts just start to proceed to heat not yet completely, causes outdoor heat exchanger in the easier frosting of air-conditioner run duration, affects the stability that air-conditioner runs; Excessively, cause defrosting time long, heating effect is undesirable in defrosting on the other hand.
Therefore, how under guaranteeing that air-conditioner has the prerequisite of good heating effect and the stability of a system, realize efficiently, rapidly defrosting become technical problem urgently to be resolved hurrily.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art or correlation technique.
For this reason, first object of the present invention is to propose a kind of refrigeration system for air-conditioner newly, can, under guaranteeing that air-conditioner has the prerequisite of good heating effect and the stability of a system, realize efficiently, rapidly defrosting.
Second object of the present invention is the defrosting control scheme proposing a kind of refrigeration system.
3rd object of the present invention is to propose a kind of air-conditioner.
For achieving the above object, embodiment according to a first aspect of the present invention, proposes a kind of refrigeration system for air-conditioner, comprising: compressor, cross valve, outdoor heat exchanger, indoor heat exchanger and gas-liquid separator; And plate type heat exchanger, the outlet of described outdoor heat exchanger is connected to the first via entrance of described plate type heat exchanger, the first via outlet of described plate type heat exchanger is connected to the second road entrance of described plate type heat exchanger and the entrance of described indoor heat exchanger, second way outlet of described plate type heat exchanger is connected to the middle press-in mouth of described compressor and the entrance of described gas-liquid separator, and the outlet of described gas-liquid separator is connected to the low-pressure inlet of described compressor; First magnetic valve, is arranged on the pipeline between the second way outlet of described plate type heat exchanger and the middle press-in mouth of described compressor; Second magnetic valve, is arranged on the pipeline between the second way outlet of described plate type heat exchanger and the entrance of described gas-liquid separator.
According to an embodiment of the invention for the refrigeration system of air-conditioner, when air-conditioner reaches defrost condition, cross valve commutates, in compressor, HTHP refrigerant carries out heat exchange through outdoor heat exchanger, thus the frost layer condensing in outdoor heat exchanger surface is melted, refrigerant after outdoor heat exchanger condensation liquefaction separates two-way after plate type heat exchanger cooling, one road flows to indoor heat exchanger, two-way is divided after flowing through plate type heat exchanger in another road, one road flows to the first magnetic valve, another road flows to the second magnetic valve, now, by the second closed electromagnetic valve, open the first magnetic valve simultaneously, refrigerant after plate type heat exchanger is all flowed in compressor and presses chamber, and then make to press in compressor cold medium flux in chamber to increase, reduce the crushing of compressor, improve compressor operating efficiency, thus can system high efficiency be ensured, complete defrosting rapidly.Simultaneously, after defrosting completes, when reaching defrosting exit criteria, cross valve commutates again, in compressor, the refrigerant inflow indoor set system of HTHP heats, the on off state of the first magnetic valve and the second magnetic valve controls according to before defrost, thus ensure that the heating effect of air-conditioner and the stability of system cloud gray model.
In addition, when carrying out defrost, also the first magnetic valve and the second magnetic valve all can be opened.
The refrigeration system for air-conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, also comprise: oil eliminator, the gas outlet of described compressor is connected to the entrance of described oil eliminator, the oil export of described oil eliminator is connected to the low-pressure inlet of described compressor, the first end of described cross valve is connected to the gas vent of described oil eliminator, second end of described cross valve is connected to the entrance of described outdoor heat exchanger, the three-terminal link of described cross valve is to the outlet of described indoor heat exchanger, and the 4th end of described cross valve is connected to the entrance of described gas-liquid separator.
According to one embodiment of present invention, also comprise: the first capillary, the first oil export of described oil eliminator is connected to the low-pressure inlet of described compressor by described first capillary; Second capillary and the 3rd magnetic valve, the second oil export of described oil eliminator is connected to the low-pressure inlet of described compressor successively by described second capillary and described 3rd magnetic valve.
According to one embodiment of present invention, also comprise: the first electric expansion valve, the outlet of described outdoor heat exchanger is connected to the first via entrance of described plate type heat exchanger by described first electric expansion valve.
According to one embodiment of present invention, also comprise: the second electric expansion valve, the first via outlet of described plate type heat exchanger is connected to the second road entrance of described plate type heat exchanger by described second electric expansion valve.
Embodiment according to a second aspect of the present invention, also proposed a kind of defrosting control method of refrigeration system, for carrying out defrosting control to the refrigeration system described in above-mentioned any one embodiment, described defrosting control method comprises: detect described refrigeration system and whether reach defrost condition; When detecting that described refrigeration system reaches described defrost condition, controlling the commutation of described cross valve, and controlling described first magnetic valve and open, and controlling described second closed electromagnetic valve.
According to one embodiment of present invention; described refrigeration system also comprises the indoor fan corresponding to described indoor heat exchanger and the outdoor fan corresponding to described outdoor heat exchanger; then before the described cross valve commutation of control, also comprise: control described indoor fan and the shutdown of described outdoor fan.
The defrosting control method of refrigeration system according to an embodiment of the invention; by when detecting that refrigeration system reaches defrost condition; control room inner blower and outdoor fan are shut down; control cross valve commutation simultaneously; and control the first magnetic valve and open; and control the second closed electromagnetic valve; gaseous coolant after plate type heat exchanger is all flowed in compressor and presses chamber; increase in compressor the flow of pressing refrigerant in chamber; reduce the crushing of compressor; and then improve the operational efficiency of compressor, ensure that system high efficiency, complete defrosting rapidly.
Embodiment according to a third aspect of the present invention, also proposed a kind of defrosting control device of refrigeration system, for carrying out defrosting control to the refrigeration system described in above-mentioned any one embodiment, described defrosting control device comprises: detecting unit, whether reaches defrost condition for detecting described refrigeration system; Control unit, for when described detecting unit detects that described refrigeration system reaches described defrost condition, controls the commutation of described cross valve, and controls described first magnetic valve and open, and control described second closed electromagnetic valve.
According to one embodiment of present invention; described refrigeration system also comprises the indoor fan corresponding to described indoor heat exchanger and the outdoor fan corresponding to described outdoor heat exchanger; described control unit also for: before the commutation of control described cross valve, control described indoor fan and described outdoor fan is shut down.
The defrosting control device of refrigeration system according to an embodiment of the invention; by when detecting that refrigeration system reaches defrost condition; control room inner blower and outdoor fan are shut down; control cross valve commutation simultaneously; and control the first magnetic valve and open; and control the second closed electromagnetic valve; gaseous coolant after plate type heat exchanger is all flowed in compressor and presses chamber; increase in compressor the flow of pressing refrigerant in chamber; reduce the crushing of compressor; and then improve the operational efficiency of compressor, ensure that system high efficiency, complete defrosting rapidly.
Embodiment according to a fourth aspect of the present invention, also proposed a kind of air-conditioner, comprising: the refrigeration system described in above-mentioned any one embodiment; And the defrosting control device of the refrigeration system described in above-mentioned any one embodiment.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 shows the structural representation of the refrigeration system for air-conditioner according to an embodiment of the invention;
Fig. 2 shows the schematic flow diagram of the defrosting control method of refrigeration system according to an embodiment of the invention;
Fig. 3 shows the schematic block diagram of the defrosting control device of refrigeration system according to an embodiment of the invention.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows the structural representation of the refrigeration system for air-conditioner according to an embodiment of the invention.
As shown in Figure 1, the refrigeration system for air-conditioner according to an embodiment of the invention, comprising: compressor 1, cross valve 3, outdoor heat exchanger 4, indoor heat exchanger (not marking in figure) and gas-liquid separator 9; And plate type heat exchanger 7, the outlet of described outdoor heat exchanger 4 is connected to the first via entrance of described plate type heat exchanger 7, the first via outlet of described plate type heat exchanger 7 is connected to the second road entrance of described plate type heat exchanger 7 and the entrance of described indoor heat exchanger, second way outlet of described plate type heat exchanger 7 is connected to the middle press-in mouth of described compressor 1 and the entrance of described gas-liquid separator 9, and the outlet of described gas-liquid separator 9 is connected to the low-pressure inlet of described compressor 1; First magnetic valve 13, is arranged on the pipeline between the second way outlet of described plate type heat exchanger 7 and the middle press-in mouth of described compressor 1; Second magnetic valve 11, is arranged on the pipeline between the second way outlet of described plate type heat exchanger 7 and the entrance of described gas-liquid separator 9.Wherein, the entrance and exit of described indoor heat exchanger is connected to stop valve 10a and stop valve 10b respectively.
When air-conditioner reaches defrost condition, cross valve 3 commutates, in compressor 1, HTHP refrigerant carries out heat exchange through outdoor heat exchanger 4, thus the frost layer condensing in outdoor heat exchanger 4 surface is melted, refrigerant after outdoor heat exchanger 4 condensation liquefaction separates two-way after plate type heat exchanger 7 cools, one road flows to indoor heat exchanger, two-way is divided after flowing through plate type heat exchanger in another road, one road flows to the first magnetic valve 13, another road flows to the second magnetic valve 11, now, second magnetic valve 11 cuts out, open the first magnetic valve 13 simultaneously, refrigerant after plate type heat exchanger 7 is all flowed in compressor 1 and presses chamber, and then make to press in compressor 1 cold medium flux in chamber to increase, reduce the crushing of compressor 1, improve compressor 1 operational efficiency, thus can system high efficiency be guaranteed, complete defrosting rapidly.Simultaneously, after defrosting completes, when reaching defrosting exit criteria, cross valve 3 commutates again, in compressor 1, the refrigerant inflow indoor set system of HTHP heats, the on off state of the first magnetic valve 13 and the second magnetic valve 11 controls according to before defrost, thus ensure that the heating effect of air-conditioner and the stability of system cloud gray model.
In addition, when carrying out defrost, also the first magnetic valve 13 and the second magnetic valve 11 all can be opened.
The refrigeration system for air-conditioner according to the abovementioned embodiments of the present invention, can also have following technical characteristic:
According to one embodiment of present invention, also comprise: oil eliminator 2, the gas outlet of described compressor 1 is connected to the entrance of described oil eliminator 2, the oil export of described oil eliminator 2 is connected to the low-pressure inlet of described compressor 1, the first end of described cross valve 3 is connected to the gas vent of described oil eliminator 2, second end of described cross valve 3 is connected to the entrance of described outdoor heat exchanger 4, the three-terminal link of described cross valve 3 is to the outlet (being namely connected to stop valve 10b) of described indoor heat exchanger 4, 4th end of described cross valve 3 is connected to the entrance of described gas-liquid separator 9.
According to one embodiment of present invention, also comprise: the first capillary 14, the first oil export of described oil eliminator 2 is connected to the low-pressure inlet of described compressor 1 by described first capillary 14; Second capillary 15 and the 3rd magnetic valve 12, the second oil export of described oil eliminator 2 is connected to the low-pressure inlet of described compressor 1 successively by described second capillary 15 and described 3rd magnetic valve 12.
According to one embodiment of present invention, also comprise: the first electric expansion valve 6, the outlet of described outdoor heat exchanger is connected to the first via entrance of described plate type heat exchanger 7 by described first electric expansion valve 6.
According to one embodiment of present invention, also comprise: the second electric expansion valve 8, the first via outlet of described plate type heat exchanger 7 is connected to the second road entrance of described plate type heat exchanger 7 by described second electric expansion valve 8.
According to one embodiment of present invention, also comprise: outdoor fan 5 and indoor fan (not shown).
Fig. 2 shows the schematic flow diagram of the defrosting control method of refrigeration system according to an embodiment of the invention.
As shown in Figure 2, the defrosting control method of refrigeration system according to an embodiment of the invention, for carrying out defrosting control to the refrigeration system shown in Fig. 1, described defrosting control method comprises: step 202, detects described refrigeration system and whether reaches defrost condition; Step 204, when detecting that described refrigeration system reaches described defrost condition, controlling the commutation of described cross valve, and controlling described first magnetic valve and open, and controlling described second closed electromagnetic valve.
According to one embodiment of present invention; described refrigeration system also comprises the indoor fan corresponding to described indoor heat exchanger and the outdoor fan corresponding to described outdoor heat exchanger; then before the described cross valve commutation of control, also comprise: control described indoor fan and the shutdown of described outdoor fan.
By when detecting that refrigeration system reaches defrost condition; control room inner blower and outdoor fan are shut down; control cross valve commutation simultaneously; and control the first magnetic valve and open, and control the second closed electromagnetic valve, the gaseous coolant after plate type heat exchanger is all flowed in compressor and presses chamber; increase in compressor the flow of pressing refrigerant in chamber; reduce the crushing of compressor, and then improve the operational efficiency of compressor, ensure that system high efficiency, complete defrosting rapidly.
Fig. 3 shows the schematic block diagram of the defrosting control device of refrigeration system according to an embodiment of the invention.
As shown in Figure 3, the defrosting control device 300 of refrigeration system according to an embodiment of the invention, for carrying out defrosting control to the refrigeration system shown in Fig. 1, described defrosting control device 300 comprises: detecting unit 302, whether reaches defrost condition for detecting described refrigeration system; Control unit 304, for when described detecting unit 302 detects that described refrigeration system reaches described defrost condition, controls the commutation of described cross valve, and controls described first magnetic valve and open, and control described second closed electromagnetic valve.
According to one embodiment of present invention; described refrigeration system also comprises the indoor fan corresponding to described indoor heat exchanger and the outdoor fan corresponding to described outdoor heat exchanger; described control unit 304 also for: before the commutation of control described cross valve, control described indoor fan and described outdoor fan is shut down.
By when detecting that refrigeration system reaches defrost condition; control room inner blower and outdoor fan are shut down; control cross valve commutation simultaneously; and control the first magnetic valve and open, and control the second closed electromagnetic valve, the gaseous coolant after plate type heat exchanger is all flowed in compressor and presses chamber; increase in compressor the flow of pressing refrigerant in chamber; reduce the crushing of compressor, and then improve the operational efficiency of compressor, ensure that system high efficiency, complete defrosting rapidly.
The invention allows for a kind of air-conditioner, comprising: refrigeration system as shown in Figure 1; And the defrosting control device 300 of refrigeration system as shown in Figure 3.
More than be described with reference to the accompanying drawings technical scheme of the present invention, the present invention proposes the defrosting control scheme of a kind of refrigeration system for air-conditioner and a kind of new refrigeration system, can, under guaranteeing that air-conditioner has the prerequisite of good heating effect and the stability of a system, realize efficiently, rapidly defrosting.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. for a refrigeration system for air-conditioner, it is characterized in that, comprising:
Compressor, cross valve, outdoor heat exchanger, indoor heat exchanger and gas-liquid separator; And
Plate type heat exchanger, the outlet of described outdoor heat exchanger is connected to the first via entrance of described plate type heat exchanger, the first via outlet of described plate type heat exchanger is connected to the second road entrance of described plate type heat exchanger and the entrance of described indoor heat exchanger, second way outlet of described plate type heat exchanger is connected to the middle press-in mouth of described compressor and the entrance of described gas-liquid separator, and the outlet of described gas-liquid separator is connected to the low-pressure inlet of described compressor;
First magnetic valve, is arranged on the pipeline between the second way outlet of described plate type heat exchanger and the middle press-in mouth of described compressor;
Second magnetic valve, is arranged on the pipeline between the second way outlet of described plate type heat exchanger and the entrance of described gas-liquid separator.
2. the refrigeration system for air-conditioner according to claim 1, is characterized in that, also comprise:
Oil eliminator, the gas outlet of described compressor is connected to the entrance of described oil eliminator, the oil export of described oil eliminator is connected to the low-pressure inlet of described compressor, the first end of described cross valve is connected to the gas vent of described oil eliminator, second end of described cross valve is connected to the entrance of described outdoor heat exchanger, the three-terminal link of described cross valve is to the outlet of described indoor heat exchanger, and the 4th end of described cross valve is connected to the entrance of described gas-liquid separator.
3. the refrigeration system for air-conditioner according to claim 2, is characterized in that, also comprise:
First capillary, the first oil export of described oil eliminator is connected to the low-pressure inlet of described compressor by described first capillary;
Second capillary and the 3rd magnetic valve, the second oil export of described oil eliminator is connected to the low-pressure inlet of described compressor successively by described second capillary and described 3rd magnetic valve.
4. the refrigeration system for air-conditioner according to any one of claim 1 to 3, is characterized in that, also comprise:
First electric expansion valve, the outlet of described outdoor heat exchanger is connected to the first via entrance of described plate type heat exchanger by described first electric expansion valve.
5. the refrigeration system for air-conditioner according to any one of claim 1 to 3, is characterized in that, also comprise:
Second electric expansion valve, the first via outlet of described plate type heat exchanger is connected to the second road entrance of described plate type heat exchanger by described second electric expansion valve.
6. a defrosting control method for refrigeration system, is characterized in that, for carrying out defrosting control to the refrigeration system such as according to any one of claim 1 to 5, described defrosting control method comprises:
Detect described refrigeration system and whether reach defrost condition;
When detecting that described refrigeration system reaches described defrost condition, controlling the commutation of described cross valve, and controlling described first magnetic valve and open, and controlling described second closed electromagnetic valve.
7. the defrosting control method of refrigeration system according to claim 6, it is characterized in that, described refrigeration system also comprises the indoor fan corresponding to described indoor heat exchanger and the outdoor fan corresponding to described outdoor heat exchanger, then, before the described cross valve commutation of control, also comprise:
Control described indoor fan and the shutdown of described outdoor fan.
8. a defrosting control device for refrigeration system, is characterized in that, for carrying out defrosting control to the refrigeration system such as according to any one of claim 1 to 5, described defrosting control device comprises:
Whether detecting unit, reach defrost condition for detecting described refrigeration system;
Control unit, for when described detecting unit detects that described refrigeration system reaches described defrost condition, controls the commutation of described cross valve, and controls described first magnetic valve and open, and control described second closed electromagnetic valve.
9. the defrosting control device of refrigeration system according to claim 8, is characterized in that, described refrigeration system also comprise corresponding to described indoor heat exchanger indoor fan and correspond to the outdoor fan of described outdoor heat exchanger, described control unit also for:
Before the described cross valve commutation of control, control described indoor fan and the shutdown of described outdoor fan.
10. an air-conditioner, is characterized in that, comprising:
Refrigeration system according to any one of claim 1 to 5; And
The defrosting control device of refrigeration system as claimed in claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510237645.1A CN104879974A (en) | 2015-05-11 | 2015-05-11 | Refrigeration system for air conditioner, method and apparatus for controlling defrosting, and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510237645.1A CN104879974A (en) | 2015-05-11 | 2015-05-11 | Refrigeration system for air conditioner, method and apparatus for controlling defrosting, and air conditioner |
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| CN104879974A true CN104879974A (en) | 2015-09-02 |
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| CN201510237645.1A Pending CN104879974A (en) | 2015-05-11 | 2015-05-11 | Refrigeration system for air conditioner, method and apparatus for controlling defrosting, and air conditioner |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008138921A (en) * | 2006-11-30 | 2008-06-19 | Mitsubishi Electric Corp | Air conditioner |
| CN101691960A (en) * | 2009-09-30 | 2010-04-07 | 广东美的电器股份有限公司 | Three-pipe heating and reclaiming air-conditioning system |
| CN102016457A (en) * | 2008-04-22 | 2011-04-13 | 大金工业株式会社 | Refrigeration device |
| CN103388923A (en) * | 2013-08-20 | 2013-11-13 | 海信（山东）空调有限公司 | Jetting enthalpy increasing air-conditioning system |
| CN104110919A (en) * | 2013-04-15 | 2014-10-22 | Lg电子株式会社 | Air Conditioner And Method For Controlling The Same |
| CN104596023A (en) * | 2013-10-30 | 2015-05-06 | Lg电子株式会社 | AIR CONDITIONER AND METHOD thereof |
-
2015
- 2015-05-11 CN CN201510237645.1A patent/CN104879974A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008138921A (en) * | 2006-11-30 | 2008-06-19 | Mitsubishi Electric Corp | Air conditioner |
| CN102016457A (en) * | 2008-04-22 | 2011-04-13 | 大金工业株式会社 | Refrigeration device |
| CN101691960A (en) * | 2009-09-30 | 2010-04-07 | 广东美的电器股份有限公司 | Three-pipe heating and reclaiming air-conditioning system |
| CN104110919A (en) * | 2013-04-15 | 2014-10-22 | Lg电子株式会社 | Air Conditioner And Method For Controlling The Same |
| CN103388923A (en) * | 2013-08-20 | 2013-11-13 | 海信（山东）空调有限公司 | Jetting enthalpy increasing air-conditioning system |
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Application publication date: 20150902 |