CN203907772U - Air conditioning system with defrosting function - Google Patents
Air conditioning system with defrosting function Download PDFInfo
- Publication number
- CN203907772U CN203907772U CN201420199157.7U CN201420199157U CN203907772U CN 203907772 U CN203907772 U CN 203907772U CN 201420199157 U CN201420199157 U CN 201420199157U CN 203907772 U CN203907772 U CN 203907772U
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- Prior art keywords
- heat exchanger
- compressor
- air
- conditioning system
- pipeline
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 36
- 238000010257 thawing Methods 0.000 title abstract description 30
- 239000003507 refrigerant Substances 0.000 claims abstract description 33
- 230000001276 controlling effect Effects 0.000 claims abstract description 5
- 238000003860 storage Methods 0.000 claims description 34
- 239000002826 coolant Substances 0.000 claims description 5
- 210000001736 Capillaries Anatomy 0.000 claims description 3
- 230000002411 adverse Effects 0.000 abstract 1
- 238000005338 heat storage Methods 0.000 description 22
- 239000011232 storage material Substances 0.000 description 22
- 238000010438 heat treatment Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001131 transforming Effects 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000414 obstructive Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002918 waste heat Substances 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
Abstract
The utility model discloses an air conditioning system with a defrosting function. The air conditioning system comprises a compressor, a four-way reversing valve, an outdoor heat exchanger, a first throttle device and an indoor heat exchanger, and further comprises a bypass pipeline, a heat accumulator and a control valve, wherein the bypass pipeline is connected between the first end of the outdoor heat exchanger and an air entry of the compressor; the heat accumulator is provided with a first heat exchange tube and a second heat exchange tube; the first heat exchange tube is connected to a pipeline between a vent of the compressor and the first end of the indoor heat exchanger in series; the second heat exchange tube is connected to the bypass pipeline in series; the control valve is used for controlling a refrigerant to reflow to the air entry of the compressor by the pipeline between the first end of the outdoor heat exchanger and the air entry of the compressor or the bypass pipeline. The air conditioning system with the defrosting function, disclosed by the utility model, has the advantages that the defrosting speed is high, the defrosting time is short, the comfortable level of a user during use can be guaranteed, and adverse influences on the compressor during defrosting can be avoided.
Description
Technical field
The utility model relates to air-conditioning technical field, particularly relates to a kind of air-conditioning system with defrost function.
Background technology
Air-conditioning is in the winter time in running cold season, and the temperature of outdoor heat exchanger is lower than environment temperature.If outdoor environment temperature is lower than below 7 ℃, the surface temperature of outdoor heat exchanger is just likely lower than 0 ℃; If outdoor environment humidity is enough large simultaneously, this will cause outdoor heat exchanger frosting, even icing, the heat exchange of serious obstruction outdoor heat exchanger, make the significantly decay rapidly of air-conditioning system heating performance, significantly affect the heating effect of air-conditioning, even cause compressor of air conditioner to break down.For this reason, need in time the outdoor heat exchanger processing that defrosts.
Traditional Defrost mode is as follows: at air-conditioning heating running, four-way change-over valve is switched to kind of refrigeration cycle flow process, allows the refrigerant of the HTHP that compressor discharges be drained in outdoor heat exchanger through four-way change-over valve, defrosts.Yet indoor heat exchanger absorbs room heat when traditional Defrost mode defrosts, cause room temperature to decline, had a strong impact on the comfortableness in room.And; adopt traditional defrosting mode; first need compressor shutdown, inner blower is through blowing after waste heat after a while, and four-way change-over valve just commutates and defrosts; after having defrosted; compressor is stagnated a period of time again, and then four-way change-over valve commutates again, heats; this process approximately needs 12～15min even longer, totally unfavorable to the comfortableness in room.In addition, adopt traditional defrosting mode, mainly utilize compressor to defrost to refrigerant institute work.While entering defrosting, the suction temperature of compressor maintains-25 ℃ even lower below, and air-breathing meter pressure maintains 1～2bar, a large amount of liquid refrigerants accumulates in place, suction port of compressor, the as easy as rolling off a log hydraulic compression that causes, unfavorable to the reliability service of compressor, affect actual life of compressor.
The problems referred to above that exist in order to solve traditional Defrost mode, prior art has proposed a kind of thermal storage defrosting method, main low-temperature heat source when this Defrost method adopts the storage heater that is arranged on compressor housing as defrosting operating condition.When freezing or heating, storage heater absorbs the used heat of compressor, and during heating and defrosting, four-way change-over valve does not commutate, and refrigerant, after indoor heat exchanger flows out, enters into outdoor heat exchanger through the bypass line in parallel with electric expansion valve and defrosts.Although this Defrost method can solve the problems referred to above that traditional Defrost mode exists, but, because this Defrost mode is that the heat that utilizes compressor to produce carries out accumulation of heat, therefore the phase change heat storage material phase transformation temperature points using will inevitably be lower, heat-storing material heat absorption and release speed can be slower, thereby make defrosting speed slower, extend the defrost time, affect equally heating effect and comfort level.And, when storage heater amount of stored heat is not enough, defrost, can cause the cold-producing medium cannot evaporating completely in a large number to enter compressor, thereby the reliability of compressor is caused to fatal threat.
Summary of the invention
For above-mentioned prior art present situation, technical problem to be solved in the utility model is, provides a kind of.
Another technical problem to be solved in the utility model is, a kind of air-conditioning system with defrost function is provided, and its defrosting speed is fast, and defrosting time is short, with the comfortableness that guarantees that user uses, and the cold-producing medium cannot evaporating completely can avoid defrosting time enters compressor compressor is caused to adverse effect.
In order to solve the problems of the technologies described above, a kind of air-conditioning system with defrost function provided by the utility model, comprise compressor, four-way change-over valve, outdoor heat exchanger, first throttle device and indoor heat exchanger, the exhaust outlet of described compressor is connected with the first end of described outdoor heat exchanger and the first end of described indoor heat exchanger by described four-way change-over valve with air entry, and the second end of described outdoor heat exchanger is connected with the second end of described outdoor heat exchanger by described first throttle device;
Also comprise bypass line, storage heater and control valve, described bypass line is connected between the first end of described outdoor heat exchanger and the air entry of described compressor, described storage heater has the first heat exchanger tube and the second heat exchanger tube, described the first heat exchanger tube is connected on the pipeline between the exhaust outlet of described compressor and the first end of described indoor heat exchanger, described the second heat exchanger tube is connected on described bypass line, described control valve is back to the air entry of described compressor for controlling refrigerant via the pipeline between the first end of described outdoor heat exchanger and the air entry of described compressor or described bypass line.
In an embodiment, the described air-conditioning system with defrost function also comprises the second throttling arrangement therein, and described the second throttling arrangement is connected on the described bypass line of described the second heat exchange tube inlet side of described storage heater.
In an embodiment, described the second throttling arrangement is capillary therein.
In an embodiment, the passage aperture of described control valve is less than the aperture of refrigerant pipe therein, makes to flow into described second heat exchanger tube of described storage heater after the coolant throttle of described control valve.
In an embodiment, described control valve is triple valve therein.
In an embodiment, described control valve comprises the first two-port valve on the pipeline between the first end of described outdoor heat exchanger and the air entry of described compressor and is positioned at the second two-port valve on described bypass line therein.
In an embodiment, one end of described bypass line is connected on the pipeline between described four-way change-over valve and the first end of described outdoor heat exchanger therein, and the other end is connected on the pipeline between described four-way change-over valve and the air entry of described compressor.
In an embodiment, the two ends of described bypass line are all connected on the pipeline between described four-way change-over valve and the air entry of described compressor therein.
In an embodiment, described compressor is single-stage compressor therein.
Compared with prior art, the high temperature refrigerant that air-conditioning system with defrost function of the present utility model utilizes compressor directly to discharge carries out accumulation of heat, therefore can adopt the phase change heat storage material that phase transformation temperature points is higher, like this, when defrosting, the temperature difference of phase change heat storage material and cold-producing medium strengthens, and the heat release speed of phase change heat storage material is fast, corresponding defrosting speed also can be accelerated, and has guaranteed the comfortableness that user uses.And storage heater amount of stored heat is sufficient during defrosting, the cold-producing medium of having avoided cannot evaporating completely enters compressor and causes liquid hammer, thereby the reliability of compressor is caused to fatal threat.
The beneficial effect that the utility model additional technical feature has will partly describe in this description specific embodiment.
Accompanying drawing explanation
Fig. 1, Fig. 2 and Fig. 3 are the schematic flow sheet of the air-conditioning system with defrost function in the utility model embodiment mono-, wherein, the schematic flow sheet that Fig. 1 is when refrigeration, Fig. 2 is the schematic flow sheet while heating, the schematic flow sheet of Fig. 3 during for defrosting;
System diagram when Fig. 4 is the defrosting of the air-conditioning system with defrost function in the utility model embodiment bis-.
Description of reference numerals: 1, compressor; 2, four-way change-over valve; 3, outdoor heat exchanger; 4, first throttle device; 5, indoor heat exchanger; 6, bypass line; 7, storage heater; 7a, the first heat exchanger tube; 7b, the second heat exchanger tube; 8, triple valve; 9, the second throttling arrangement.
The specific embodiment
Below with reference to accompanying drawing, also the utility model is elaborated in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in following embodiment and embodiment can combine mutually.
Air-conditioning system with defrost function of the present utility model increases bypass line at existing air-conditioner system, storage heater and control valve, bypass line is connected between the first end of outdoor heat exchanger and the air entry of compressor, storage heater has the first heat exchanger tube and the second heat exchanger tube, the first heat exchanger tube is connected on the pipeline between the exhaust outlet of compressor and the first end of indoor heat exchanger, the second heat exchanger tube is connected on bypass line, control valve is for controlling the air entry that refrigerant is back to described compressor via the pipeline between the first end of outdoor heat exchanger and the air entry of compressor or bypass line.Refrigeration or while heating, the HTHP refrigerant that compressor is discharged enters in the first heat exchanger tube of storage heater and carries out heat exchange with phase change heat storage material, and phase change heat storage material absorbs heat and undergoes phase transition, and heat is stored; During defrosting, refrigerant in outdoor heat exchanger after condensing heat-exchange, enters in the second heat exchanger tube of storage heater and carries out heat exchange with phase change heat storage material, absorbs the heat of savings in storage heater, evaporates, and then enters compressor air suction mouth, completes defrost cycle.
With respect to traditional, utilize the accumulation of heat of compressor used heat, the high temperature refrigerant that air-conditioning system with defrost function of the present utility model utilizes compressor directly to discharge carries out accumulation of heat, therefore can adopt the phase change heat storage material that phase transformation temperature points is higher, like this, when defrosting, the temperature difference of phase change heat storage material and cold-producing medium strengthens, and the heat release speed of phase change heat storage material is fast, corresponding defrosting speed also can be accelerated, and has guaranteed the comfortableness that user uses.And storage heater amount of stored heat is sufficient during defrosting, the cold-producing medium of having avoided cannot evaporating completely enters compressor and causes liquid hammer, thereby the reliability of compressor is caused to fatal threat.
Below in conjunction with specific embodiment, the air-conditioning system with defrost function of the present utility model is described in detail.
Embodiment mono-
As shown in Figures 1 to 3, the air-conditioning system with defrost function in the present embodiment is identical with the existing air-conditioning system with defrost function: include single-stage compressor 1, four-way change-over valve 2, outdoor heat exchanger 3, first throttle device 4 and indoor heat exchanger 5, wherein, the exhaust outlet of described compressor 1 is connected with the first end of described indoor heat exchanger 5 with the first end of described outdoor heat exchanger 3 by described four-way change-over valve 2 with air entry, and the second end of described outdoor heat exchanger 3 is connected with the second end of described indoor heat exchanger 5 through first throttle device 4.First throttle device 4 is preferably electric expansion valve.
Different from the existing air-conditioning system with defrost function is, the air-conditioning system with defrost function in the present embodiment also comprises bypass line 6, storage heater 7 and control valve, and the two ends of described bypass line 6 are all connected on the pipeline between described four-way change-over valve 2 and the air entry of described compressor 1.Described storage heater 7 has the first heat exchanger tube 7a and the second heat exchanger tube 7b, and described the first heat exchanger tube 7a is connected on the exhaust outlet and the pipeline between described four-way change-over valve 2 of described compressor 1, and described the second heat exchanger tube 7b is connected on described bypass line 6.Described control valve is for controlling the air entry that refrigerant is back to described compressor 1 via the pipeline between the first end of described outdoor heat exchanger 3 and the air entry of described compressor 1 or described bypass line 6.Preferably, described control valve is triple valve 8, the first interface of described triple valve 8 is connected with described four-way change-over valve 2 through refrigerant pipe, the second interface of described triple valve 8 is connected with the air entry of described double-stage compressor 1 through refrigerant pipe, the 3rd interface of described triple valve 8 is connected with one end of described the first bypass line 9 through refrigerant pipe, and the other end of described the first bypass line 9 is connected on the pipeline between the second interface of described triple valve 8 and the air entry of described double-stage compressor 1.
Refrigeration or while heating, the HTHP refrigerant that compressor 1 is discharged enters in the first heat exchanger tube 7a of storage heater 7 and carries out heat exchange with phase change heat storage material, and phase change heat storage material absorbs heat and undergoes phase transition, and heat is stored; During defrosting, refrigerant, after the interior condensing heat-exchange of outdoor heat exchanger 3, enters in the second heat exchanger tube 7b of storage heater 7 and carries out heat exchange with phase change heat storage material, absorbs the heat of storage heater 7 interior savings, evaporates, and then enters compressor 1 air entry, completes defrost cycle.As can be seen here, the high temperature refrigerant that the air-conditioning system with defrost function of the present embodiment utilizes compressor 1 directly to discharge carries out accumulation of heat, therefore can adopt the phase change heat storage material that phase transformation temperature points is higher, like this, when defrosting, the temperature difference of phase change heat storage material and cold-producing medium strengthens, and the heat release speed of phase change heat storage material is fast, corresponding defrosting speed also can be accelerated, and has guaranteed the comfortableness that user uses.And storage heater 7 amount of stored heat are sufficient during defrosting, the cold-producing medium of having avoided cannot evaporating completely enters compressor 1 and causes liquid hammer, thereby the reliability of compressor 1 is caused to fatal threat.
Preferably, the passage aperture of described triple valve 8 is less than the aperture of refrigerant pipe, makes to flow into the described second heat exchanger tube 7b of described storage heater 7 after the coolant throttle of described triple valve 8.Like this, the refrigerant of outdoor heat exchanger 3 outlet is by after triple valve 8 throttlings, then enters storage heater 7 heat absorption evaporations, is conducive to liquid coolant and evaporates completely, and the cold-producing medium of having avoided cannot evaporating completely enters compressor 1 and causes liquid hammer.
The operation principle of the air-conditioning system with defrost function in the present embodiment is as follows:
In process of refrigerastion, as shown in Figure 1, the high temperature refrigerant of compressor 1 exhaust outlet enters in the first heat exchanger tube 7a of storage heater 7 and carries out heat exchange with phase change heat storage material, phase change heat storage material absorbs heat and undergoes phase transition, heat is stored, then refrigerant enters outdoor heat exchanger 3 through four-way change-over valve 2, and with outdoor environment heat exchange, release heat, enter indoor heat exchanger 5 through the 4 throttlings coolings of first throttle device are laggard again, carry out heat exchange with indoor environment, heat amount of heat in absorption chamber, finally by crossing triple valve 8, enter compressor 1 air entry, complete kind of refrigeration cycle one time.
Heat in process, as shown in Figure 2, the high temperature refrigerant of compressor 1 exhaust outlet enters in the first heat exchanger tube 7a of storage heater 7 and carries out heat exchange with phase change heat storage material, phase change heat storage material absorbs heat and undergoes phase transition, heat is stored, then refrigerant enters indoor heat exchanger 5 through four-way change-over valve 2, in indoor heat exchanger 5 condensation heat releases, and then enter outdoor heat exchanger 3 through 4 throttlings of first throttle device are laggard, at outdoor heat exchanger 3, evaporate, absorb heat, finally by crossing triple valve 8, enter compressor 1 air entry, complete and once heat circulation.
During defrosting, as shown in Figure 3, the high temperature refrigerant of compressor 1 exhaust outlet enters in the first heat exchanger tube 7a of storage heater 7 and carries out heat exchange with phase change heat storage material, phase change heat storage material absorbs heat and undergoes phase transition, heat is stored, then refrigerant enters indoor heat exchanger 5 through four-way change-over valve 2, and now indoor fan (not shown) is closed, and refrigerant does not carry out heat exchange with internal environment substantially at indoor heat exchanger 5; Refrigerant enters first throttle device 4 after indoor heat exchanger 5 flows out, and now the aperture of first throttle device 4 is adjusted to maximum, and then the refrigerant of heat enters into outdoor heat exchanger 3 and defrosts, and now outdoor fan (not shown) is closed condition; After the interior condensing heat-exchange of outdoor heat exchanger 3, then commutate and enter the second heat exchanger tube 7b of storage heater 7 by triple valve 8, absorb the heat of storage heater 7 interior savings, evaporate, then enter compressor 1 air entry, complete defrost cycle.
Embodiment bis-
Figure 4 shows that the schematic diagram of the air-conditioning system with defrost function in the utility model embodiment bis-.Different from embodiment mono-: one end of described the first bypass line 6 is connected on the pipeline between described four-way change-over valve 2 and the first end of described outdoor heat exchanger 3, and the other end is connected on the pipeline between described four-way change-over valve 2 and the air entry of described double-stage compressor 1.In addition, also comprise the second throttling arrangement 9, described the second throttling arrangement 9 is connected on the described bypass line 6 of described the second heat exchanger tube 7b entrance side.Further preferably, described the second throttling arrangement 9 is capillary.Like this, the refrigerant of outdoor heat exchanger 3 outlet is by after capillary-compensated, then enters storage heater 7 heat absorption evaporations, is conducive to liquid coolant and evaporates completely, and the cold-producing medium of having avoided cannot evaporating completely enters compressor 1 and causes liquid hammer.
What the control valve in above-described embodiment adopted is triple valve 8, can also adopt two two-port valves to replace triple valve 8, a two-port valve is on the pipeline between the first end of described outdoor heat exchanger 3 and the air entry of described compressor 1, and another two-port valve is positioned on described bypass line 6.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (9)
1. the air-conditioning system with defrost function, comprise compressor, four-way change-over valve, outdoor heat exchanger, first throttle device and indoor heat exchanger, the exhaust outlet of described compressor is connected with the first end of described outdoor heat exchanger and the first end of described indoor heat exchanger by described four-way change-over valve with air entry, and the second end of described outdoor heat exchanger is connected with the second end of described outdoor heat exchanger by described first throttle device;
It is characterized in that, also comprise bypass line, storage heater and control valve, described bypass line is connected between the first end of described outdoor heat exchanger and the air entry of described compressor, described storage heater has the first heat exchanger tube and the second heat exchanger tube, described the first heat exchanger tube is connected on the pipeline between the exhaust outlet of described compressor and the first end of described indoor heat exchanger, described the second heat exchanger tube is connected on described bypass line, described control valve is back to the air entry of described compressor for controlling refrigerant via the pipeline between the first end of described outdoor heat exchanger and the air entry of described compressor or described bypass line.
2. the air-conditioning system with defrost function according to claim 1, is characterized in that, also comprises the second throttling arrangement, and described the second throttling arrangement is connected on the described bypass line of described the second heat exchange tube inlet side of described storage heater.
3. the air-conditioning system with defrost function according to claim 2, is characterized in that, described the second throttling arrangement is capillary.
4. the air-conditioning system with defrost function according to claim 1, is characterized in that, the passage aperture of described control valve is less than the aperture of refrigerant pipe, makes to flow into described second heat exchanger tube of described storage heater after the coolant throttle of described control valve.
5. the air-conditioning system with defrost function according to claim 1, is characterized in that, described control valve is triple valve.
6. the air-conditioning system with defrost function according to claim 1, it is characterized in that, described control valve comprises the first two-port valve on the pipeline between the first end of described outdoor heat exchanger and the air entry of described compressor and is positioned at the second two-port valve on described bypass line.
7. according to the air-conditioning system with defrost function described in any one in claim 1 to 6, it is characterized in that, one end of described bypass line is connected on the pipeline between described four-way change-over valve and the first end of described outdoor heat exchanger, and the other end is connected on the pipeline between described four-way change-over valve and the air entry of described compressor.
8. according to the air-conditioning system with defrost function described in any one in claim 1 to 6, it is characterized in that, the two ends of described bypass line are all connected on the pipeline between described four-way change-over valve and the air entry of described compressor.
9. the air-conditioning system with defrost function according to claim 1, is characterized in that, described compressor is single-stage compressor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199157.7U CN203907772U (en) | 2014-04-22 | 2014-04-22 | Air conditioning system with defrosting function |
| PCT/CN2015/076353 WO2015161743A1 (en) | 2014-04-22 | 2015-04-10 | Air-conditioning system with defrosting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199157.7U CN203907772U (en) | 2014-04-22 | 2014-04-22 | Air conditioning system with defrosting function |
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| Publication Number | Publication Date |
|---|---|
| CN203907772U true CN203907772U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420199157.7U Active CN203907772U (en) | 2014-04-22 | 2014-04-22 | Air conditioning system with defrosting function |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203907772U (en) |
| WO (1) | WO2015161743A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879975A (en) * | 2015-06-15 | 2015-09-02 | 北京工业大学 | Hot-gas bypass and phase change heat storage combined defrosting system applied to refrigerator |
| WO2015161743A1 (en) * | 2014-04-22 | 2015-10-29 | 珠海格力电器股份有限公司 | Air-conditioning system with defrosting function |
| CN106288564A (en) * | 2016-09-30 | 2017-01-04 | 芜湖美智空调设备有限公司 | Air conditioning system |
| CN106766295A (en) * | 2016-12-08 | 2017-05-31 | 东莞信易电热机械有限公司 | A kind of cooling-water machine |
| CN106839498A (en) * | 2017-02-10 | 2017-06-13 | 美的集团股份有限公司 | Heat pump air conditioner and its control method |
| CN106907825A (en) * | 2017-02-06 | 2017-06-30 | 美的集团股份有限公司 | Air-conditioning system and air-conditioner control method |
| CN112781275A (en) * | 2020-12-30 | 2021-05-11 | 珠海格力电器股份有限公司 | Heat pump system, control method thereof, controller, and computer-readable storage medium |
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| JP2667741B2 (en) * | 1991-01-18 | 1997-10-27 | シャープ株式会社 | Air conditioner |
| JP3458058B2 (en) * | 1998-04-13 | 2003-10-20 | 株式会社神戸製鋼所 | Refrigeration equipment |
| CN2482652Y (en) * | 2001-05-23 | 2002-03-20 | 广东科龙电器股份有限公司 | Thermal storage heat pump air conditioner |
| JP2013104623A (en) * | 2011-11-15 | 2013-05-30 | Panasonic Corp | Refrigeration cycle device and air conditioner with the same |
| CN103574966B (en) * | 2012-07-30 | 2015-09-09 | 珠海格力电器股份有限公司 | Heat pump type air corditioning system and Defrost method thereof |
| CN103791569B (en) * | 2012-10-30 | 2016-10-05 | 珠海格力电器股份有限公司 | Heat pump type air corditioning system |
| CN203907772U (en) * | 2014-04-22 | 2014-10-29 | 珠海格力电器股份有限公司 | Air conditioning system with defrosting function |
| CN203908096U (en) * | 2014-04-22 | 2014-10-29 | 珠海格力电器股份有限公司 | Two-stage compression air conditioning system with defrosting function |
| CN103983037B (en) * | 2014-04-22 | 2016-08-24 | 珠海格力电器股份有限公司 | The Two-stage Compression air conditioning system of band defrosting function |
| CN104061705B (en) * | 2014-06-12 | 2017-03-15 | 珠海格力电器股份有限公司 | Two-stage Compression air-conditioning system and its control method |
| CN203964436U (en) * | 2014-06-12 | 2014-11-26 | 珠海格力电器股份有限公司 | Two-stage Compression air-conditioning system |
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2014
- 2014-04-22 CN CN201420199157.7U patent/CN203907772U/en active Active
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2015
- 2015-04-10 WO PCT/CN2015/076353 patent/WO2015161743A1/en active Application Filing
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015161743A1 (en) * | 2014-04-22 | 2015-10-29 | 珠海格力电器股份有限公司 | Air-conditioning system with defrosting function |
| CN104879975A (en) * | 2015-06-15 | 2015-09-02 | 北京工业大学 | Hot-gas bypass and phase change heat storage combined defrosting system applied to refrigerator |
| CN106288564A (en) * | 2016-09-30 | 2017-01-04 | 芜湖美智空调设备有限公司 | Air conditioning system |
| CN106766295A (en) * | 2016-12-08 | 2017-05-31 | 东莞信易电热机械有限公司 | A kind of cooling-water machine |
| CN106907825A (en) * | 2017-02-06 | 2017-06-30 | 美的集团股份有限公司 | Air-conditioning system and air-conditioner control method |
| CN106839498A (en) * | 2017-02-10 | 2017-06-13 | 美的集团股份有限公司 | Heat pump air conditioner and its control method |
| CN106839498B (en) * | 2017-02-10 | 2019-12-20 | 美的集团股份有限公司 | Heat pump air conditioner and control method thereof |
| CN112781275A (en) * | 2020-12-30 | 2021-05-11 | 珠海格力电器股份有限公司 | Heat pump system, control method thereof, controller, and computer-readable storage medium |
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| WO2015161743A1 (en) | 2015-10-29 |
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