CN204254947U - Air-conditioning system - Google Patents
Air-conditioning system Download PDFInfo
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- CN204254947U CN204254947U CN201420648934.1U CN201420648934U CN204254947U CN 204254947 U CN204254947 U CN 204254947U CN 201420648934 U CN201420648934 U CN 201420648934U CN 204254947 U CN204254947 U CN 204254947U
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Abstract
The utility model provides a kind of air-conditioning system, comprise compressor, cross valve, indoor heat exchanger, first outdoor heat exchanger, second outdoor heat exchanger and reversal valve, wherein, second outdoor heat exchanger is connected with compressor by the first valve, be communicated with the first outdoor heat exchanger by the second valve, pass through reversal valve, first valve and the second valve change the flow direction of cold-producing medium, the second outdoor heat exchanger is utilized to carry out preheating EAT, to prevent the first outdoor heat exchanger frosting, restrained effectively the frosting situation of outdoor heat exchanger under clammy operating mode, thus decrease the defrosting action that air-conditioning system occurs in heating operations, achieve complete machine and continue efficient heat supply, improve heating time accounting and heating load, improve the comfortableness of air-conditioning system under clammy heating condition, meanwhile, decrease the number of times that cross valve commutates because of defrost, improve the service life of cross valve and compressor, improve the reliability of air-conditioning system and the adaptability to clammy heating condition.
Description
Technical field
The utility model relates to art of refrigeration units, more specifically, relates to a kind of air-conditioning system.
Background technology
At present, the application of air-conditioner is more and more extensive, and frosting problem is the major issue solved needed for air-conditioner always; In conventional air conditioner, often adopt the mode such as reverse cycle defrosting, hot gas bypass defrosting to defrost, these modes are all just carry out defrosting action after heat exchanger frosting, have certain effect in actual applications, but after also there is cross valve commutation, compressor returns liquid, cross valve and frequently to commutate problems such as causing reliability decrease.
Utility model content
The utility model is intended at least to solve one of technical problem existed in prior art.
For this reason, the purpose of this utility model is, provides a kind of air-conditioning system that effectively can suppress frosting.
For achieving the above object, the utility model provides a kind of air-conditioning system, comprising: compressor, and described compressor has exhaust outlet and gas returning port; Cross valve, described cross valve has exhaust port, condenser port, evaporimeter port and suction port, and described exhaust port is connected with the exhaust outlet of described compressor, and described suction port is connected with the gas returning port of described compressor; Indoor heat exchanger, one end of described indoor heat exchanger is connected with the evaporimeter port of described cross valve; First outdoor heat exchanger, one end of described first outdoor heat exchanger is connected with the condenser port of described cross valve, and the other end is connected by the other end of throttling arrangement with described indoor heat exchanger; Second outdoor heat exchanger, described second outdoor heat exchanger is positioned at the side of described first outdoor heat exchanger, and one end of described second outdoor heat exchanger is connected with the exhaust outlet of described compressor by the first valve, be connected by the second valve one end with described first outdoor heat exchanger; And reversal valve, the feed liquor port of described reversal valve is connected with the other end of described second outdoor heat exchanger, and two working ports of described reversal valve are connected with the two ends of described throttling arrangement respectively.
The air-conditioning system that the utility model provides, pass through reversal valve, first valve and the second valve realize the change of refrigerant flow direction, the second outdoor heat exchanger is utilized to carry out preheating EAT, to prevent the first outdoor heat exchanger frosting, air-conditioning system is made not occur defrost action under the clammy operating mode of certain limit, continue heat supply, and appearance defrost action the least possible under the low cold operating mode of high humility, ensure that air-conditioning system reliability, improve heating time accounting and heating load, specifically, air-conditioning system has two groups of outdoor heat exchangers, when air-conditioning system is freezed, second valve open, reversal valve is communicated with the other end of the second outdoor heat exchanger and throttling arrangement near one end of the second outdoor heat exchanger, the cold-producing medium that HTHP discharged by compressor carries out heat exchange by whole heat exchanging pipes of two groups of outdoor heat exchangers, now two groups of outdoor heat exchangers all play condenser effect, indoor heat exchanger is entered and room air carries out heat exchange afterwards through throttling arrangement step-down throttling, realize refrigeration, when air-conditioning system heats, be divided into two kinds of modes: when control module detects that air-conditioning system operates in the heating condition of not easily frosting, second valve open, reversal valve is communicated with the other end of the second outdoor heat exchanger and throttling arrangement near one end of the second outdoor heat exchange, two groups of outdoor heat exchangers all play evaporimeter effect, cold-producing medium, by after indoor heat exchanger heat exchange, enters two groups of outdoor heat exchangers through throttling arrangement, when control module detects that air-conditioning system operates in the heating condition of easy frosting, control is opened the first valve and is closed the second valve, control reversal valve commutation simultaneously, now, the high-temperature high-pressure refrigerant part that compressor is discharged passes through the pipeline of the second outdoor heat exchanger, play the effect of preheating chamber outer air, and realize heat exchange with the pipeline of the first outdoor heat exchanger and promote evaporating temperature, now, first outdoor heat exchanger still works the effect of heating, like this, effectively inhibit the frosting situation of outdoor heat exchanger under clammy operating mode, thus decrease the defrosting action that air-conditioning system occurs in heating operations, achieve complete machine and continue efficient heat supply, improve heating time accounting and heating load, improve the comfortableness of air-conditioning system under clammy heating condition, meanwhile, decrease the number of times that cross valve commutates because of defrost, improve the service life of cross valve and compressor, improve the reliability of air-conditioning system and the adaptability to clammy heating condition.
In addition, the air-conditioning system provided according to the utility model above-described embodiment also has following additional technical feature:
According to an embodiment of the present utility model, described reversal valve is two-position three way magnetic valve.
Two-position three way magnetic valve can, under the control of control module, according to different outdoor situations, switch the stream of the second outdoor heat exchanger, and two position three-way valve size be little, both saves space, lightly attractive in appearance again.
According to an embodiment of the present utility model, described first valve is electric expansion valve or heating power expansion valve.
First valve connects exhaust outlet and second outdoor heat exchanger of compressor, in order to carry out reducing pressure by regulating flow to high-temperature high-pressure refrigerant, and ensure that only some enters the second outdoor heat exchanger for the high-temperature high-pressure refrigerant that flows out from compressor, adopt electric expansion valve or heating power expansion valve as the first valve, the strong adaptability that electric expansion valve changes refrigerant amount, makes air conditioning comfortableness strengthen; Heating power expansion valve, Applicable temperature scope is large, can Fast-Balance system high-low pressure during shutdown.
According to an embodiment of the present utility model, described second valve is two-way electromagnetic valve.
Two-port valve has two-way on-off action, effectively can control unlatching or the closedown of air-conditioning duct, and two-port valve size is little, both saves space, lightly attractive in appearance again.
According to an embodiment of the present utility model, described throttling arrangement is capillary or electric expansion valve or heating power expansion valve or restriction sleeve.
Throttling arrangement connects indoor heat exchanger and outdoor heat exchanger, in order to carry out reducing pressure by regulating flow to high-temperature high-pressure refrigerant, ensure the pressure differential between condenser and evaporimeter, to make liquid refrigerant evaporation endothermic under the low pressure required in evaporimeter, thus reach the object of refrigeration step-down, capillary or electric expansion valve or heating power expansion valve or restriction sleeve can be adopted, the structure of capillary is simple, easily manufactured, cheap, there is no moving component, itself not easily produces fault and leakage, and there is auto-compensation feature to adapt to the requirement of cooling load change to flow, the strong adaptability that electric expansion valve changes refrigerant amount, makes air conditioning comfortableness strengthen, heating power expansion valve, Applicable temperature scope is large, can Fast-Balance system high-low pressure during shutdown.
According to an embodiment of the present utility model, described first outdoor heat exchanger and described second outdoor heat exchanger are fin-tube type heat exchanger.
Fin-tube type heat exchanger is widely used, technology maturation, easily manufactures, and cost is lower, by the adjustment of stream, can suppress the situation generation of accumulating frost at clammy operating mode lower bottom part stream because of ponding or long-pending frost.
According to an embodiment of the present utility model, described second outdoor heat exchanger is L-shaped, and described first outdoor heat exchanger is positioned at described second outdoor heat exchanger.
Second outdoor heat exchanger is centered around outside the first outdoor heat exchanger, under clammy operating mode, carries out preheating, promote the evaporating temperature of the first outdoor heat exchanger to the outdoor cold air of process, thus effectively suppresses outdoor heat exchanger frosting.
According to an embodiment of the present utility model, described first outdoor heat exchanger is micro-channel heat exchanger, and described second outdoor heat exchanger is fin-tube type heat exchanger.
Compared with usual heat exchanger, micro-channel heat exchanger volume is little, compact conformation, and the coefficient of heat transfer is large, and heat exchange efficiency is high, and reliably energy-conservation; First outdoor heat exchanger mainly plays evaporation, adopts micro-channel heat exchanger can effective improving heat exchanging efficiency, comfortableness when lifting heats; And the second outdoor heat exchanger is mainly preheated air, suppress heat exchanger frosting, adopt fin-tube type heat exchanger effectively to achieve the goal, can also reduce costs simultaneously.
According to an embodiment of the present utility model, described first outdoor heat exchanger is aluminium micro-channel heat exchanger.
Aluminium micro-channel heat exchanger thermal conductivity is good, lightweight, easy processing and manufacturing, and good looking appearance, effectively can promote using character and the comfortableness of air-conditioning system.
According to an embodiment of the present utility model, described first outdoor heat exchanger is identical with the size of described second outdoor heat exchanger.
Size is identical, and the second outdoor heat exchanger can block the first outdoor heat exchanger completely, thus can effective preheating chamber exogenous damp cold air, suppresses outdoor heat exchanger frosting.
Additional aspect of the present utility model and advantage become obvious by description part below, or are recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the air-conditioning system according to the utility model embodiment;
Fig. 2 is the first assembly structure schematic diagram of the first outdoor heat exchanger and the second outdoor heat exchanger in the air-conditioning system shown in Fig. 1;
Fig. 3 is the second assembly structure schematic diagram of the first outdoor heat exchanger and the second outdoor heat exchanger in the air-conditioning system shown in Fig. 1.
Wherein, the corresponding relation in Fig. 1 to Fig. 3 between Reference numeral and component names is:
1 compressor, 11 exhaust outlets, 12 gas returning ports, 2 cross valves, 21 exhaust ports, 22 condenser ports, 23 evaporimeter ports, 24 suction ports, 3 indoor heat exchangers, 4 first outdoor heat exchangers, 5 throttling arrangements, 6 second outdoor heat exchangers, 7 first valves, 8 second valves, 9 reversal valves.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments, the utility model 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 utility model; but; the utility model can also adopt other to be different from mode described here to implement, and therefore, protection domain of the present utility model is not by the restriction of following public specific embodiment.
1 to accompanying drawing 3 describes the air-conditioning system provided according to some embodiments of the utility model with reference to the accompanying drawings.
In FIG, the flow direction of cold-producing medium when filled arrows is refrigeration, hollow arrow is the flow direction of cold-producing medium when heating; In fig. 2, hollow arrow direction is the flow direction of cold-producing medium, and filled arrows direction is the flow direction of outdoor wind; In figure 3, filled arrows direction is the flow direction of outdoor wind.
As shown in Figure 1, according to a kind of air-conditioning system that some embodiments of the utility model provide, comprising: compressor 1, cross valve 2, indoor heat exchanger 3, first outdoor heat exchanger 4, second outdoor heat exchanger 6 and reversal valve 9,
Particularly, compressor 1 has exhaust outlet 11 and gas returning port 12, cross valve 2 has exhaust port 21, condenser port 22, evaporimeter port 23 and suction port 24, exhaust port 21 is connected with the exhaust outlet 11 of compressor 1, suction port 24 is connected with compressor 1 gas returning port 12, one end of indoor heat exchanger 3 is connected with the evaporimeter port 23 of cross valve 2, one end of first outdoor heat exchanger 4 is connected with the condenser port 22 of cross valve 2, the other end is connected by the other end of throttling arrangement 5 with indoor heat exchanger 3, second outdoor heat exchanger 6 is positioned at the side of the first outdoor heat exchanger 4, one end of second outdoor heat exchanger 6 is connected with the exhaust outlet 11 of compressor 1 by the first valve 7, be connected by the second valve 8 one end with the first outdoor heat exchanger 4, the feed liquor port of reversal valve 9 is connected with the other end of the second outdoor heat exchanger 6, two working ports of reversal valve 9 are connected with the two ends of throttling arrangement 5 respectively.
The air-conditioning system that the utility model provides, pass through reversal valve, first valve and the second valve realize the change of refrigerant flow direction, the second outdoor heat exchanger is utilized to carry out preheating EAT, to prevent the first outdoor heat exchanger frosting, air-conditioning system is made not occur defrost action under the clammy operating mode of certain limit, continue heat supply, and appearance defrost action the least possible under the low cold operating mode of high humility, ensure that air-conditioning system reliability, improve heating time accounting and heating load, specifically, air-conditioning system has two groups of outdoor heat exchangers, when air-conditioning system is freezed, control the first valve closing, second valve open, reversal valve is communicated with the other end of the second outdoor heat exchanger and throttling arrangement near one end of the second outdoor heat exchanger, the cold-producing medium that HTHP discharged by compressor carries out heat exchange by whole heat exchanging pipes of two groups of outdoor heat exchangers, now two groups of outdoor heat exchangers all play condenser effect, indoor heat exchanger is entered and room air carries out heat exchange afterwards through throttling arrangement step-down throttling, realize refrigeration, when air-conditioning system heats, be divided into two kinds of modes: when control module detects that air-conditioning system operates in the heating condition of not easily frosting, control the first valve closing, the second valve open, reversal valve is communicated with the other end of the second outdoor heat exchanger and throttling arrangement near one end of the second outdoor heat exchange, two groups of outdoor heat exchangers all play evaporimeter effect, cold-producing medium, by after indoor heat exchanger heat exchange, enters two groups of outdoor heat exchangers through throttling arrangement, when control module detects that air-conditioning system operates in the heating condition of easy frosting, control is opened the first valve and is closed the second valve, control reversal valve commutation simultaneously, now, the high-temperature high-pressure refrigerant part that compressor is discharged passes through the pipeline of the second outdoor heat exchanger, play the effect of preheating chamber outer air, and realize heat exchange with the pipeline of the first outdoor heat exchanger and promote evaporating temperature, now, first outdoor heat exchanger still works the effect of heating, like this, effectively inhibit the frosting situation of outdoor heat exchanger under clammy operating mode, thus decrease the defrosting action that air-conditioning system occurs in heating operations, achieve complete machine and continue efficient heat supply, improve heating time accounting and heating load, improve the comfortableness of air-conditioning system under clammy heating condition, meanwhile, decrease the number of times that cross valve commutates because of defrost, improve the service life of cross valve and compressor, improve the reliability of air-conditioning system and the adaptability to clammy heating condition.
Particularly, as shown in Figure 1, reversal valve 9 is two-position three way magnetic valve.
Two position three-way valve can, under the control of control module, according to different outdoor situations, switch the stream of the second outdoor heat exchanger, and two position three-way valve size be little, both saves space, lightly attractive in appearance again.
Preferably, the first valve 7 is electric expansion valve or heating power expansion valve.
First valve connects exhaust outlet and second outdoor heat exchanger of compressor, in order to carry out reducing pressure by regulating flow to high-temperature high-pressure refrigerant, and ensure that only some enters the second outdoor heat exchanger for the high-temperature high-pressure refrigerant that flows out from compressor, adopt electric expansion valve or heating power expansion valve as the first valve, the strong adaptability that electric expansion valve changes refrigerant amount, makes air conditioning comfortableness strengthen; Heating power expansion valve, Applicable temperature scope is large, can Fast-Balance system high-low pressure during shutdown.
Alternatively, the second valve 8 is two-way electromagnetic valve.
Two-port valve has two-way on-off action, effectively can control unlatching or the closedown of air-conditioning duct, and two-port valve size is little, both saves space, lightly attractive in appearance again.
Alternatively, throttling arrangement 5 is capillary or electric expansion valve or heating power expansion valve or restriction sleeve.
Throttling arrangement connects indoor heat exchanger and outdoor heat exchanger, in order to carry out reducing pressure by regulating flow to high-temperature high-pressure refrigerant, ensure the pressure differential between condenser and evaporimeter, to make liquid refrigerant evaporation endothermic under the low pressure required in evaporimeter, thus reach the object of refrigeration step-down, capillary or electric expansion valve or heating power expansion valve or restriction sleeve can be adopted, the structure of capillary is simple, easily manufactured, cheap, there is no moving component, itself not easily produces fault and leakage, and there is auto-compensation feature to adapt to the requirement of cooling load change to flow, the strong adaptability that electric expansion valve changes refrigerant amount, makes air conditioning comfortableness strengthen, heating power expansion valve, Applicable temperature scope is large, can Fast-Balance system high-low pressure during shutdown.
In a specific embodiment of the present utility model, as shown in Figure 2, the first outdoor heat exchanger 4 and the second outdoor heat exchanger 6 are fin-tube type heat exchanger.
Fin-tube type heat exchanger is widely used, technology maturation, easily manufactures, and cost is lower, by the adjustment of stream, can suppress the situation generation of accumulating frost at clammy operating mode lower bottom part stream because of ponding or long-pending frost.
Preferably, as shown in Figure 2, the second outdoor heat exchanger 6 is L-shaped, and the first outdoor heat exchanger 4 is positioned at the second outdoor heat exchanger 6.
Second outdoor heat exchanger is centered around outside the first outdoor heat exchanger, under clammy operating mode, carries out preheating, promote the evaporating temperature of the first outdoor heat exchanger to the outdoor cold air of process, thus effectively suppresses outdoor heat exchanger frosting.
In another specific embodiment of the present utility model, as shown in Figure 3, the first outdoor heat exchanger 4 is micro-channel heat exchanger, and the second outdoor heat exchanger 6 is fin-tube type heat exchanger.
Compared with usual heat exchanger, micro-channel heat exchanger volume is little, compact conformation, and the coefficient of heat transfer is large, and heat exchange efficiency is high, and reliably energy-conservation; First outdoor heat exchanger mainly plays evaporation, adopts micro-channel heat exchanger can effective improving heat exchanging efficiency, comfortableness when lifting heats; And the second outdoor heat exchanger is mainly preheated air, suppress heat exchanger frosting, adopt fin-tube type heat exchanger effectively to achieve the goal, can also reduce costs simultaneously.
Alternatively, the first outdoor heat exchanger 4 is aluminium micro-channel heat exchanger.
Aluminium micro-channel heat exchanger thermal conductivity is good, lightweight, easy processing and manufacturing, and good looking appearance, effectively can promote using character and the comfortableness of air-conditioning system.
Preferably, as shown in Figure 3, the first outdoor heat exchanger 4 is identical with the size of described second outdoor heat exchanger 6.
Size is identical, and the second outdoor heat exchanger can block the first outdoor heat exchanger completely, thus can effective preheating chamber exogenous damp cold air, suppresses outdoor heat exchanger frosting.
In sum, the air-conditioning system that the utility model provides, the change of refrigerant flow direction is realized by reversal valve, the first valve and the second valve, the second outdoor heat exchanger is utilized to carry out preheating EAT, to prevent the first outdoor heat exchanger frosting, restrained effectively the frosting situation of outdoor heat exchanger under clammy operating mode, thus decrease the defrosting action that air-conditioning system occurs in heating operations, achieve complete machine and continue efficient heat supply, improve heating time accounting and heating load, improve the comfortableness of air-conditioning system under clammy heating condition; Meanwhile, decrease the number of times that cross valve commutates because of defrost, improve the service life of cross valve and compressor, improve the reliability of air-conditioning system and the adaptability to clammy heating condition.
In description of the present utility model, term " installation ", " being connected ", " connection " etc. all should be interpreted broadly, and such as, " connection " can be fixedly connected with, and also can be removably connect, or connects integratedly; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In description of the present utility model, term " first ", " second " object for describing, and instruction or hint relative importance can not be interpreted as, unless otherwise clearly defined and limited.
In the description of this description, specific features, structure, material or feature that the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. an air-conditioning system, is characterized in that, comprising:
Compressor, described compressor has exhaust outlet and gas returning port;
Cross valve, described cross valve has exhaust port, condenser port, evaporimeter port and suction port, and described exhaust port is connected with the exhaust outlet of described compressor, and described suction port is connected with the gas returning port of described compressor;
Indoor heat exchanger, one end of described indoor heat exchanger is connected with the evaporimeter port of described cross valve;
First outdoor heat exchanger, one end of described first outdoor heat exchanger is connected with the condenser port of described cross valve, and the other end is connected by the other end of throttling arrangement with described indoor heat exchanger;
Second outdoor heat exchanger, described second outdoor heat exchanger is positioned at the side of described first outdoor heat exchanger, and one end of described second outdoor heat exchanger is connected with the exhaust outlet of described compressor by the first valve, be connected by the second valve one end with described first outdoor heat exchanger; With
Reversal valve, the feed liquor port of described reversal valve is connected with the other end of described second outdoor heat exchanger, and two working ports of described reversal valve are connected with the two ends of described throttling arrangement respectively.
2. air-conditioning system according to claim 1, is characterized in that,
Described reversal valve is two-position three way magnetic valve.
3. air-conditioning system according to claim 2, is characterized in that,
Described first valve is electric expansion valve or heating power expansion valve.
4. air-conditioning system according to claim 3, is characterized in that,
Described second valve is two-way electromagnetic valve.
5. air-conditioning system according to claim 4, is characterized in that,
Described throttling arrangement is capillary or electric expansion valve or heating power expansion valve or restriction sleeve.
6. air-conditioning system according to any one of claim 1 to 5, is characterized in that,
Described first outdoor heat exchanger and described second outdoor heat exchanger are fin-tube type heat exchanger.
7. air-conditioning system according to claim 6, is characterized in that,
Described second outdoor heat exchanger is L-shaped, and described first outdoor heat exchanger is positioned at described second outdoor heat exchanger.
8. air-conditioning system according to any one of claim 1 to 5, is characterized in that,
Described first outdoor heat exchanger is micro-channel heat exchanger, and described second outdoor heat exchanger is fin-tube type heat exchanger.
9. air-conditioning system according to claim 8, is characterized in that,
Described first outdoor heat exchanger is aluminium micro-channel heat exchanger.
10. air-conditioning system according to claim 9, is characterized in that,
Described first outdoor heat exchanger is identical with the size of described second outdoor heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420648934.1U CN204254947U (en) | 2014-10-31 | 2014-10-31 | Air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420648934.1U CN204254947U (en) | 2014-10-31 | 2014-10-31 | Air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204254947U true CN204254947U (en) | 2015-04-08 |
Family
ID=52959247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420648934.1U Expired - Fee Related CN204254947U (en) | 2014-10-31 | 2014-10-31 | Air-conditioning system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204254947U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042925A (en) * | 2015-08-05 | 2015-11-11 | 广东美的制冷设备有限公司 | Air conditioning system and air conditioner with same |
| CN105588355A (en) * | 2016-01-27 | 2016-05-18 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN110173951A (en) * | 2019-04-30 | 2019-08-27 | 中国联合工程有限公司 | The method of hot working fluid adverse current in liquid supply pipe is prevented when a kind of air-cooler defrosting |
| CN110553328A (en) * | 2019-09-09 | 2019-12-10 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
-
2014
- 2014-10-31 CN CN201420648934.1U patent/CN204254947U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042925A (en) * | 2015-08-05 | 2015-11-11 | 广东美的制冷设备有限公司 | Air conditioning system and air conditioner with same |
| CN105588355A (en) * | 2016-01-27 | 2016-05-18 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN110173951A (en) * | 2019-04-30 | 2019-08-27 | 中国联合工程有限公司 | The method of hot working fluid adverse current in liquid supply pipe is prevented when a kind of air-cooler defrosting |
| CN110173951B (en) * | 2019-04-30 | 2021-01-19 | 中国联合工程有限公司 | Method for preventing hot working medium from flowing reversely in liquid supply pipe during defrosting of air cooler |
| CN110553328A (en) * | 2019-09-09 | 2019-12-10 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20211031 |