CN104654461A - Air conditioner capable of continuously heating and defrosting and control method of air conditioner - Google Patents
Air conditioner capable of continuously heating and defrosting and control method of air conditioner Download PDFInfo
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- CN104654461A CN104654461A CN201510046569.6A CN201510046569A CN104654461A CN 104654461 A CN104654461 A CN 104654461A CN 201510046569 A CN201510046569 A CN 201510046569A CN 104654461 A CN104654461 A CN 104654461A
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- heat exchanger
- outdoor heat
- valve port
- exchanger unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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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
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention relates to the technical field of air conditioning equipment, in particular to an air conditioner capable of continuously heating and defrosting and a control method of the air conditioner. The air conditioner capable of continuously heating and defrosting comprises an outdoor heat exchanger, an indoor heat exchanger, a compressor, a throttling device and a four-way valve, wherein the four-way valve comprises a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port and the second valve port are respectively communicated with the air suction end and the air exhaust end of the compressor, and the third valve port is communicated with the indoor heat exchanger; the outdoor heat exchanger comprises at least two outdoor heat exchanger units which are arranged in parallel, one end of each outdoor heat exchanger unit is connected with a reversing device in series, and each reversing device selectively enables the outdoor heat exchanger units to be communicated with the third valve port or the fourth valve port. Through the structure, low influence on indoor temperature during heating and defrosting processes of the air conditioner is realized, and the using comfort degree of the air conditioner is increased.
Description
Technical field
The present invention relates to air conditioner technical field, particularly relate to a kind of can the air-conditioner of continuous heating defrost and control method thereof.
Background technology
Conventional air conditioner system is formed primarily of compressor, condenser, choke valve, evaporimeter, in order to cold and hot conversion adds cross valve parts, its condenser and evaporimeter is exchanged, and realizes the demand simultaneously realizing cooling and warming.In heating operations, the outer surface of outdoor heat exchanger has frost and is formed, and frost can impact the heat exchange property of outdoor heat exchanger.When needing the solidifying frost removed on outdoor heat exchanger, need cross valve to commutate, now condenser and evaporimeter exchange, and adopting indoor heat absorption to melt the frost of condenser, as this reduced indoor heating effect, affecting comfortableness.
Can impact indoor temperature for defrost process, scientific worker has made improvement to existing air-conditioning, as increased auxiliary heating parts (as electric heater) on outdoor heat exchanger, although this auxiliary electric heating element can defrost to outdoor heat exchanger when not affecting room temperature, but the energy consumption of general auxiliary heating parts is higher, the problem that defrosting efficiency is low.
For the problems referred to above, we need one can realize can not causing too much influence to indoor temperature in heating and defrosting process, also can not produce and occur suddenly abnormal throttling noise because stopping in room that air-conditioning causes and affect air-conditioning comfort problem, and there is higher defrosting efficiency and lower energy consumption can the air-conditioner of continuous heating defrost and control method thereof.
Summary of the invention
The object of the invention is to propose a kind of can the air-conditioner of continuous heating defrost, can realize can not causing too much influence to indoor temperature in heating and defrosting process.
Another object of the present invention be to propose a kind of can the control method of air-conditioner of continuous heating defrost, can realize can not causing too much influence to indoor temperature in heating and defrosting process.
For reaching this object, the present invention by the following technical solutions:
A kind of can the air-conditioner of continuous heating defrost, comprise outdoor heat exchanger, indoor heat exchanger, compressor, throttling arrangement and cross valve, described cross valve comprises the first valve port, second valve port, 3rd valve port and the 4th valve port, described first valve port, second valve port is communicated with exhaust end with the suction end of compressor respectively, 3rd valve port is communicated with indoor heat exchanger, wherein, described outdoor heat exchanger comprises at least two outdoor heat exchanger unit be arranged in parallel, all reversing arrangement has been arranged in series in one end of each outdoor heat exchanger unit, the selectable outdoor heat exchanger unit that makes of described reversing arrangement is communicated with the 3rd valve port or the 4th valve port.
As above-mentioned can a kind of preferred version of air-conditioner of continuous heating defrost, in described outdoor heat exchanger, part outdoor heat exchanger unit is communicated with the 3rd valve port, this part outdoor heat exchanger unit defrosts, and in described outdoor heat exchanger, part outdoor heat exchanger unit is communicated with the 4th valve port.
As above-mentioned can a kind of preferred version of air-conditioner of continuous heating defrost, be all arranged in series throttling arrangement at the other end of each outdoor heat exchanger unit.
As above-mentioned can a kind of preferred version of air-conditioner of continuous heating defrost, described reversing arrangement is three-way magnetic valve, and this three-way magnetic valve comprises A mouth, B mouth and C mouth, wherein, A mouth is communicated with outdoor heat exchanger unit, and B mouth is communicated with the 3rd valve port, and C mouth is communicated with the 4th valve port;
Three-way magnetic valve comprises "on" position and off-position,
When being in off-position, A mouth is communicated with C mouth, is not communicated with between A mouth and B mouth;
When being in "on" position, A mouth is communicated with B mouth, and A mouth is not communicated with C mouth.
As above-mentioned can a kind of preferred version of air-conditioner of continuous heating defrost, described B mouth is communicated with the connecting pipeline between described indoor heat exchanger and the 3rd valve port by the first pipeline, and described C mouth is connected with the 4th valve port by the second pipeline.
As above-mentioned can a kind of preferred version of air-conditioner of continuous heating defrost, also comprise the defrosting temperature-sensitive bag on control device and heat exchanger unit disposed in the outdoor, described defrosting temperature-sensitive bag, three-way magnetic valve are electrically connected with control device;
Air-conditioning be in heat state time, described control device controls energising or the power-off of three-way magnetic valve according to the temperature value that defrosting temperature-sensitive bag detects.
As above-mentioned can a kind of preferred version of air-conditioner of continuous heating defrost, be arranged side by side between described outdoor heat exchanger unit, and the maximum heat-transfer surface correspondence of adjacent outdoor heat exchanger unit is arranged.
As above-mentioned can a kind of preferred version of air-conditioner of continuous heating defrost, there is between described outdoor heat exchanger unit the spacing of setting.
As above-mentioned can a kind of preferred version of air-conditioner of continuous heating defrost, described outdoor heat exchanger comprises two outdoor heat exchanger unit be arranged in parallel, it is respectively the first outdoor heat exchanger unit and the second outdoor heat exchanger unit, one end of described First Heat Exchanger unit is provided with first throttle device, the other end is provided with the first reversing arrangement, one end of described second heat exchanger unit is provided with the second throttling arrangement, and the other end is provided with the second reversing arrangement.
A kind of as previously discussed can the control method of air-conditioner of continuous heating defrost, wherein, when air-conditioning is in heating operation, if when detecting that outdoor heat exchanger unit needs to defrost, the reversing arrangement outdoor heat exchanger unit that needs are defrosted that carries out commutating is communicated with the 3rd valve port of cross valve, and carry out in defrost process at outdoor heat exchanger, need to guarantee that at least one outdoor heat exchanger unit is communicated with the 4th valve port of cross valve.
Beneficial effect of the present invention is: by being arranged in parallel by multiple outdoor heat exchanger unit of air-conditioner, and by the mode of communicating between reversing arrangement control room external heat exchanger unit and cross valve.When outdoor heat exchanger unit is communicated with the 3rd valve port, the outdoor heat exchanger unit be in series with the 3rd valve port defrosts, and other does not need the outdoor heat exchanger unit defrosted to be communicated with the 4th valve port of cross valve, heats circulation normally.Can realize thus can not causing too much influence to indoor temperature in heating and defrosting process, also do not produce and occur suddenly abnormal throttling noise because stopping in room that air-conditioning causes and affect air-conditioning comfort problem, and this air-conditioning has higher defrosting efficiency and lower energy consumption.
Accompanying drawing explanation
Fig. 1 be the specific embodiment of the invention provide can the structural representation of air-conditioner of continuous heating defrost.
Fig. 2 is the partial enlarged drawing at Fig. 1 " I place ";
Fig. 3 is the partial enlarged drawing at Fig. 1 " J place ";
Fig. 4 be the specific embodiment of the invention provide the refrigerant of air-conditioner kind of refrigeration cycle of continuous heating defrost can flow to schematic diagram;
Fig. 5 be the specific embodiment of the invention provide can continuous heating defrost air conditioner heat-production circulation refrigerant flow to schematic diagram;
Fig. 6 be the specific embodiment of the invention provide can flow to schematic diagram by second outdoor heat exchanger of air-conditioner of the continuous heating defrost refrigerant that carries out defrosting;
Fig. 7 be the specific embodiment of the invention provide can flow to schematic diagram by first outdoor heat exchanger of air-conditioner of the continuous heating defrost refrigerant that carries out defrosting.
Wherein:
1: outdoor heat exchanger; 2: indoor heat exchanger; 3: compressor; 4: cross valve; 5: the first pipelines; 6: the second pipelines; 7: gas-liquid separator; 8: oil eliminator; 9: the first stop valves; 10: the second stop valves;
21: the first outdoor heat exchanger unit; 22: the second outdoor heat exchanger unit; 23: first throttle device; 24: the first reversing arrangements; 25: the second throttling arrangements; 26: the second reversing arrangements;
41: the first valve ports; 42: the second valve ports; 43: the three valve ports; 44: the four valve ports.
Detailed description of the invention
Technical scheme of the present invention is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
As shown in Figures 1 to 7, present embodiments provide for a kind of can the air-conditioner of continuous heating defrost, it comprises outdoor heat exchanger 1, indoor heat exchanger 2, compressor 3, throttling arrangement and cross valve 4, wherein, with reference to Fig. 2, cross valve 4 comprises the first valve port 41, second valve port 42, the 3rd valve port 43 and the 4th valve port 44, first valve port 41, second valve port 42 and is communicated with exhaust end with the suction end of compressor 3 respectively, and the 3rd valve port 43 is communicated with indoor heat exchanger 2.
Outdoor heat exchanger 1 comprises at least two outdoor heat exchanger unit be arranged in parallel, and has all been arranged in series reversing arrangement in one end of each outdoor heat exchanger unit, and the selectable outdoor heat exchanger unit that makes of this reversing arrangement is communicated with the 3rd valve port 43 or the 4th valve port 44.
Concrete, in heating and defrosting process, in outdoor heat exchanger, part outdoor heat exchanger unit is communicated with the 3rd valve port 43, this part outdoor heat exchanger unit defrosts, in outdoor heat exchanger, part outdoor heat exchanger unit is communicated with the 4th valve port 44, and the outdoor heat exchanger unit that this part is communicated with the 4th valve port 44 heats circulation normally.
In this embodiment, the preferred arrangement of throttling arrangement is: be all arranged in series throttling arrangement at the other end of each outdoor heat exchanger unit, namely one end of each outdoor heat exchanger unit has been arranged in series reversing arrangement, and the other end has been arranged in series throttling arrangement.The set-up mode of this kind of throttling arrangement, in air-conditioning defrost process, can improve condensation or the evaporation efficiency of outdoor heat exchanger unit.
Present embodiment by being arranged in parallel by multiple outdoor heat exchanger unit of air-conditioner, and passes through the mode of communicating between reversing arrangement control room external heat exchanger unit and cross valve 4.When outdoor heat exchanger unit is communicated with the 3rd valve port 43, the outdoor heat exchanger unit be in series with the 3rd valve port 43 defrosts.Needs illustrate, in defrost process, need to ensure that at least one outdoor heat exchanger unit is communicated with the 4th valve port 44 of cross valve 4, as long as meet this condition, air-conditioner could form normal closed circuit (being namely in normal heating operation state), can realize making fluctuations in indoor temperature too large in defrost process.
Concrete, reversing arrangement is three-way magnetic valve, and with reference to Fig. 3, this three-way magnetic valve comprises A mouth, B mouth and C mouth, and wherein, A mouth is communicated with outdoor heat exchanger unit, and B mouth is communicated with the 3rd valve port 43, and C mouth is communicated with the 4th valve port 44;
Three-way magnetic valve comprises "on" position and off-position, and when being in off-position, A mouth is communicated with C mouth, is not communicated with between A mouth and B mouth, and the outdoor heat exchanger unit of connecting with the three-way magnetic valve being in off-position is communicated with the 4th valve port 44;
When being in "on" position, A mouth is communicated with B mouth, and A mouth is not communicated with C mouth, and the outdoor heat exchanger unit of connecting with the three-way magnetic valve being in "on" position is communicated with the 3rd valve port 43.
Concrete further, B mouth is communicated with the connecting pipeline between indoor heat exchanger 2 and cross valve 4 the 3rd valve port 43 by the first pipeline 5, and C mouth is connected with the 4th valve port 44 by the second pipeline 6.
It should be noted that to carry out intelligentized control method to air-conditioner defrosting process, air-conditioner also comprises the defrosting temperature-sensitive bag on control device and heat exchanger unit disposed in the outdoor, defrosting temperature-sensitive bag, three-way magnetic valve are electrically connected with control device, air-conditioning be in heat state time, control device controls energising or the power-off of three-way magnetic valve according to the temperature value that defrosting temperature-sensitive bag detects.That is the temperature value that control device can detect according to defrosting temperature-sensitive bag show which outdoor heat exchanger unit needs to defrost.
Be arranged side by side between outdoor heat exchanger unit, and the maximum heat-transfer surface correspondence of adjacent outdoor heat exchanger unit is arranged.When heating operation, humid air, through the heat exchange of outer heat exchanger, makes most moisture be condensed at outer heat exchanger, internal layer heat exchanger unit not easily produces frosting.
There is between outdoor heat exchanger unit the spacing of setting.On this basis, if be arranged side by side form in above between outdoor heat exchanger unit, humid air is after outer heat exchanger, then the space between two-layer heat exchanger achieves air to flow through nexine heat exchanger more even, further can make the frosting hardly of nexine heat exchanger.
Meanwhile, because there is setting spacing between outdoor heat exchanger unit, the heat exchange efficiency of each outdoor heat exchanger unit can be improved.
As preferably, above-mentioned throttling arrangement is electric expansion valve.
Be provided with gas-liquid separator 7 between first valve port 41 and suction end, the second valve port 42 and exhaust end are provided with oil eliminator 8.The performance of air-conditioning can be improved by arranging gas-liquid separator 7 and oil eliminator 8, certainly possibility air-conditioner being arranged the parts such as reservoir is also not precluded within, as the first stop valve 9 and the second stop valve 10, first stop valve 9 and the second stop valve 10 can so that the dismounting of air-conditioning, installation and maintenance.
Present embodiment comprises two outdoor heat exchanger unit for outdoor heat exchanger and is described in detail, as described below concrete:
Outdoor heat exchanger comprises two outdoor heat exchanger unit be arranged in parallel, it is respectively the first outdoor heat exchanger unit 21 and the second outdoor heat exchanger unit 22, one end of First Heat Exchanger unit 21 is provided with first throttle device 23, the other end is provided with the first reversing arrangement 24, one end of second heat exchanger unit 22 is provided with the second throttling arrangement 25, and the other end is provided with the second reversing arrangement 26.Wherein, first throttle device 23 and the second throttling arrangement 25 are electric expansion valve, and the first reversing arrangement 24 and the second reversing arrangement 26 are three-way magnetic valve.
In order to be further detailed above-mentioned air-conditioner, present embodiment additionally provides its concrete course of work.This air-conditioner comprises refrigeration mode, heating mode and heats defrost pattern, as shown below concrete:
Refrigeration mode, in such a mode the first reversing arrangement 24 power-off, the second reversing arrangement 26 power-off, the flow direction of refrigerant is in such a mode:
With reference to Fig. 4, compressor 3 is vented refrigerant after oil eliminator 8, cross valve 4 and flows to the first outdoor heat exchanger unit 21 and the second heat exchanger unit 22, the refrigerant flowing through the first outdoor heat exchanger unit 21 and the second heat exchanger unit 22 enters indoor heat exchanger 2 heat exchange by the first stop valve 9 respectively after first throttle device 23 and the second throttling arrangement 25 reducing pressure by regulating flow, refrigerant after heat exchange gasification returns compressor 3 through the second stop valve 10, cross valve 4, gas-liquid separator 7, completes a kind of refrigeration cycle.
Heating mode, in such a mode the first reversing arrangement 24 power-off, the second reversing arrangement 26 power-off, the flow direction of refrigerant is in such a mode:
With reference to Fig. 5, compressor 3 is vented through oil eliminator 8, cross valve 4, second stop valve 10 to indoor heat exchanger 2 heat exchange, condensed liquid refrigerants enters the first outdoor heat exchanger unit 21 and the second outdoor heat exchanger unit 22 respectively after the first stop valve 9, first throttle device 23, second throttling arrangement 25 reducing pressure by regulating flow, after evaporation endothermic, return compressor 3 through cross valve 4, gas-liquid separator 7 again, complete and once heat circulation.
Heat defrost pattern:
In such a mode, if when detecting that the second outdoor parallel operation hot cell 22 needs defrost, now the second reversing arrangement 26 is energized, the first reversing arrangement 24 power-off.
With reference to Fig. 6, compressor 3 is vented a refrigerant part after oil eliminator 8, cross valve 4 and enters indoor heat exchanger 2 heat exchange through the second stop valve 10, another part enters the second outdoor heat exchanger unit 22 by the second reversing arrangement 26 and carries out heat exchange (condensation heat release defrosts), finally flow through the refrigerant mixing of indoor heat exchanger 2 and the second outdoor heat exchanger unit 22, evaporation endothermic in the first outdoor heat exchanger unit 21 is entered after first throttle device 23 reducing pressure by regulating flow, return compressor 3 finally by cross valve 4, gas-liquid separator 7, complete and heat defrost circulation.
When detecting that the first outdoor heat exchanger unit 21 needs defrost, now the first reversing arrangement 24 is energized, the second reversing arrangement 26 power-off.
With reference to Fig. 7, compressor 3 is vented a refrigerant part after oil eliminator 8, cross valve 4 and enters indoor heat exchanger 2 heat exchange through the second stop valve 10, another part enters the first outdoor heat exchanger unit 21 by the first reversing arrangement 24 and carries out heat exchange (condensation heat release defrosts), finally flow through the refrigerant mixing of indoor heat exchanger 2 and the first outdoor heat exchanger unit 21, evaporation endothermic in the second outdoor heat exchanger unit 22 is entered after the second throttling arrangement 25 reducing pressure by regulating flow, return compressor 3 finally by cross valve 4, gas-liquid separator 7, complete and heat defrost circulation.
Present embodiment additionally provide a kind of be applicable to above-mentioned can the control method of air-conditioner of continuous heating defrost, when air-conditioning is in heating operation, if when detecting that outdoor heat exchanger unit needs to defrost, the reversing arrangement outdoor heat exchanger unit that needs are defrosted that carries out commutating is communicated with the 3rd valve port 43 of cross valve 4, and carry out in defrost process at outdoor heat exchanger 1, need to guarantee that at least one outdoor heat exchanger unit is communicated with the 4th valve port 44 of cross valve 4.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (10)
1. one kind can the air-conditioner of continuous heating defrost, comprise outdoor heat exchanger (1), indoor heat exchanger (2), compressor (3), throttling arrangement and cross valve (4), described cross valve (4) comprises the first valve port (41), second valve port (42), 3rd valve port (43) and the 4th valve port (44), described first valve port (41), second valve port (42) is communicated with exhaust end with the suction end of compressor (3) respectively, 3rd valve port (43) is communicated with indoor heat exchanger (2), it is characterized in that, described outdoor heat exchanger (1) comprises at least two outdoor heat exchanger unit be arranged in parallel, all reversing arrangement has been arranged in series in one end of each outdoor heat exchanger unit, the selectable outdoor heat exchanger unit that makes of described reversing arrangement is communicated with the 3rd valve port (43) or the 4th valve port (44).
2. according to claim 1 can the air-conditioner of continuous heating defrost, it is characterized in that: in described outdoor heat exchanger, part outdoor heat exchanger unit is communicated with the 3rd valve port (43), this part outdoor heat exchanger unit defrosts, and in described outdoor heat exchanger, part outdoor heat exchanger unit is communicated with the 4th valve port (44).
3. according to claim 1 can the air-conditioner of continuous heating defrost, it is characterized in that: be all arranged in series throttling arrangement at the other end of each outdoor heat exchanger unit.
4. according to claim 1 can the air-conditioner of continuous heating defrost, it is characterized in that, described reversing arrangement is three-way magnetic valve, this three-way magnetic valve comprises A mouth, B mouth and C mouth, wherein, A mouth is communicated with outdoor heat exchanger unit, and B mouth is communicated with the 3rd valve port (43), and C mouth is communicated with the 4th valve port (44);
Three-way magnetic valve comprises "on" position and off-position,
When being in off-position, A mouth is communicated with C mouth, is not communicated with between A mouth and B mouth;
When being in "on" position, A mouth is communicated with B mouth, and A mouth is not communicated with C mouth.
5. according to claim 4 can the air-conditioner of continuous heating defrost, it is characterized in that, described B mouth is communicated with the connecting pipeline between described indoor heat exchanger (2) and the 3rd valve port (43) by the first pipeline (5), and described C mouth is connected with the 4th valve port (44) by the second pipeline (6).
6. according to claim 4 can the air-conditioner of continuous heating defrost, it is characterized in that, also comprise the defrosting temperature-sensitive bag on control device and heat exchanger unit disposed in the outdoor, described defrosting temperature-sensitive bag, three-way magnetic valve are electrically connected with control device;
Air-conditioning be in heat state time, described control device controls energising or the power-off of three-way magnetic valve according to the temperature value that defrosting temperature-sensitive bag detects.
7. according to claim 1 can the air-conditioner of continuous heating defrost, it is characterized in that, be arranged side by side between described outdoor heat exchanger unit, and the maximum heat-transfer surface correspondence of adjacent outdoor heat exchanger unit is arranged.
8. according to claim 7 can the air-conditioner of continuous heating defrost, it is characterized in that there is between described outdoor heat exchanger unit the spacing of setting.
9. according to claim 3 can the air-conditioner of continuous heating defrost, it is characterized in that, described outdoor heat exchanger (1) comprises two outdoor heat exchanger unit be arranged in parallel, it is respectively the first outdoor heat exchanger unit (21) and the second outdoor heat exchanger unit (22), one end of described First Heat Exchanger unit (21) is provided with first throttle device (23), the other end is provided with the first reversing arrangement (24), one end of described second heat exchanger unit (22) is provided with the second throttling arrangement (25), the other end is provided with the second reversing arrangement (26).
10. one kind as described in claim 1-9 any one can the control method of air-conditioner of continuous heating defrost, it is characterized in that, when air-conditioning is in heating operation, if when detecting that outdoor heat exchanger unit needs to defrost, the reversing arrangement outdoor heat exchanger unit that needs are defrosted that carries out commutating is communicated with the 3rd valve port (43) of cross valve (4), and carry out in defrost process at outdoor heat exchanger (1), need to guarantee that at least one outdoor heat exchanger unit is communicated with the 4th valve port (44) of cross valve (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510046569.6A CN104654461A (en) | 2015-01-29 | 2015-01-29 | Air conditioner capable of continuously heating and defrosting and control method of air conditioner |
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| CN201510046569.6A CN104654461A (en) | 2015-01-29 | 2015-01-29 | Air conditioner capable of continuously heating and defrosting and control method of air conditioner |
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| CN105003982A (en) * | 2015-08-04 | 2015-10-28 | 珠海格力电器股份有限公司 | Air-conditioning system and control method thereof |
| CN105371517A (en) * | 2015-11-04 | 2016-03-02 | 青岛海尔空调器有限总公司 | Radiant air conditioner and defrosting method thereof |
| CN105910227A (en) * | 2016-04-20 | 2016-08-31 | 广东美的暖通设备有限公司 | Air conditioner system and defrosting method thereof |
| CN105928272A (en) * | 2016-04-20 | 2016-09-07 | 广东美的暖通设备有限公司 | Air conditioning system and defrosting method thereof |
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| CN106247651A (en) * | 2016-08-19 | 2016-12-21 | 芜湖美智空调设备有限公司 | Refrigeration system and control method thereof and control device, air-conditioner |
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| CN106839493A (en) * | 2016-11-23 | 2017-06-13 | 珠海格力电器股份有限公司 | A kind of air-conditioning system and its defrosting control method |
| CN109612026A (en) * | 2018-11-22 | 2019-04-12 | 海信（山东）空调有限公司 | Outdoor unit, air conditioner and its Defrost method |
| CN109827275A (en) * | 2019-03-29 | 2019-05-31 | 广东美的制冷设备有限公司 | Airhandling equipment |
| CN110173917A (en) * | 2019-06-21 | 2019-08-27 | 珠海格力电器股份有限公司 | Air-conditioning system and its control method |
| CN110332618A (en) * | 2019-07-15 | 2019-10-15 | 珠海格力电器股份有限公司 | Outdoor unit, air-conditioning system and control method with continuous heating function |
| CN111306832A (en) * | 2018-12-11 | 2020-06-19 | 广东美芝精密制造有限公司 | Air conditioner |
| CN111322784A (en) * | 2020-03-23 | 2020-06-23 | 珠海格力电器股份有限公司 | Air conditioning unit capable of continuously heating and control method thereof |
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| CN106839493A (en) * | 2016-11-23 | 2017-06-13 | 珠海格力电器股份有限公司 | A kind of air-conditioning system and its defrosting control method |
| CN106839493B (en) * | 2016-11-23 | 2023-08-29 | 珠海格力电器股份有限公司 | Air conditioning system and defrosting control method thereof |
| CN109612026A (en) * | 2018-11-22 | 2019-04-12 | 海信（山东）空调有限公司 | Outdoor unit, air conditioner and its Defrost method |
| CN111306832A (en) * | 2018-12-11 | 2020-06-19 | 广东美芝精密制造有限公司 | Air conditioner |
| CN111306832B (en) * | 2018-12-11 | 2021-09-17 | 广东美芝精密制造有限公司 | Air conditioner |
| WO2020150889A1 (en) * | 2019-01-22 | 2020-07-30 | 北京卡林新能源技术有限公司 | Control system for sequential defrosting of moist-air heat exchanger |
| CN109827275A (en) * | 2019-03-29 | 2019-05-31 | 广东美的制冷设备有限公司 | Airhandling equipment |
| CN110173917A (en) * | 2019-06-21 | 2019-08-27 | 珠海格力电器股份有限公司 | Air-conditioning system and its control method |
| CN110173917B (en) * | 2019-06-21 | 2023-07-18 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN110332618A (en) * | 2019-07-15 | 2019-10-15 | 珠海格力电器股份有限公司 | Outdoor unit, air-conditioning system and control method with continuous heating function |
| CN111425949A (en) * | 2020-03-11 | 2020-07-17 | 珠海格力电器股份有限公司 | Heat pump air conditioning system and control method thereof |
| CN111322784A (en) * | 2020-03-23 | 2020-06-23 | 珠海格力电器股份有限公司 | Air conditioning unit capable of continuously heating and control method thereof |
| CN113669844A (en) * | 2021-08-30 | 2021-11-19 | 海信（广东）空调有限公司 | Air conditioner and control method thereof |
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