CN107289659A - The control method of air-conditioning system and air-conditioning system - Google Patents
The control method of air-conditioning system and air-conditioning system Download PDFInfo
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- CN107289659A CN107289659A CN201710525294.3A CN201710525294A CN107289659A CN 107289659 A CN107289659 A CN 107289659A CN 201710525294 A CN201710525294 A CN 201710525294A CN 107289659 A CN107289659 A CN 107289659A
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- valve
- port
- mouthful
- valve port
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Classifications
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- 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
- F25B49/022—Compressor control arrangements
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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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/074—Details of compressors or related parts with multiple cylinders
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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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/077—Compressor control units, e.g. terminal boxes, mounted on the compressor casing wall containing for example starter, protection switches or connector contacts
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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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air-conditioning system and the control method of air-conditioning system.Air-conditioning system includes compressor, commutation component, outdoor heat exchanger, indoor heat exchanger, flash vessel, throttling arrangement and reversal valve.Compressor can be operated in single cylinder pattern or twin-tub pattern, and compressor is formed with the first air entry, the second air entry, gas supplementing opening, control mouth and exhaust outlet.The component that commutates includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, and the gas outlet of flash vessel is connected with the gas supplementing opening of compressor.Reversal valve include first, second mouthful and the 3rd mouthful, first connects control mouth, second mouthful of first valve port of connection, 3rd mouthful of the 4th valve port of connection, first can selectively communicate with second mouthful or the 3rd mouthful, so that control mouth can selectively communicate with the first valve port or the 4th valve port, when control mouth is connected with the 4th valve port, compressor operating is in single cylinder pattern, when control mouth is connected with the first valve port, and compressor operating is in twin-tub pattern.
Description
Technical field
The present invention relates to household electrical appliance technical field, more specifically, it is related to the control of a kind of air-conditioning system and air-conditioning system
Method processed.
Background technology
With the raising of people's material life, air conditioner is increasingly becoming the requirement of people's life, and people are also to air-conditioning
Higher requirement is proposed in terms of refrigerating capacity, heating capacity, efficiency, traditional air-conditioning can meet general cooling and warming
Operating mode, but in high-temperature refrigeration, low-temperature heating operating mode, ability will decay, and efficiency can also be deteriorated.
The content of the invention
Embodiment of the present invention provides the control method of a kind of air-conditioning system and air-conditioning system.
The air-conditioning system of embodiment of the present invention includes:
Compressor, the compressor can be operated in single cylinder pattern or twin-tub pattern, and the compressor is formed with the first suction
Gas port, the second air entry, gas supplementing opening, control mouth and exhaust outlet, the compressor include the first cylinder and the second cylinder, described the
One air entry connects first cylinder, and second air entry connects second cylinder;
Commutate component, and the commutation component includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, described the
One valve port can selectively communicate with second valve port or the 3rd valve port, and the 4th valve port can be selectively communicated with
Second valve port or the 3rd valve port, first valve port connect the exhaust outlet, the 4th valve port connection described the
One air entry and second air entry, the control mouth can selectively communicate with first valve port or the 4th valve
Mouthful;
Outdoor heat exchanger and indoor heat exchanger, the first port of the outdoor heat exchanger connect second valve port, described
The second port of outdoor heat exchanger connects the first port of the indoor heat exchanger, the second port connection of the indoor heat exchanger
3rd valve port;
Flash vessel, the flash vessel includes two refrigerants mouthful and gas outlet, described two refrigerants mouths respectively with the outdoor
The second port of heat exchanger is connected with the first port of the indoor heat exchanger, and the gas outlet is connected with the gas supplementing opening;
Throttling arrangement, the throttling arrangement includes first throttle element and the second restricting element, the first throttle element
The second port and one of them described refrigerant mouthful of the outdoor heat exchanger are connected, second restricting element connects the interior
The first port of heat exchanger and another described refrigerant mouthful, the air-conditioning system is in refrigeration, the aperture of a restricting element
Less than the aperture of second restricting element, the air-conditioning system is when heating, and the aperture of second restricting element is less than institute
State the aperture of first throttle element;With
Reversal valve, the reversal valve include first, second mouthful and the 3rd mouthful, the first connects the control mouth,
Second mouthful of connection, first valve port, the 3rd mouthful of connection the 4th valve port, the first can be optionally
Described second mouthful is connected or described 3rd mouthful, so that the control mouth can selectively communicate with first valve port or institute
The 4th valve port is stated, when the control mouth is connected with the 4th valve port, the compressor operating is in the single cylinder pattern, the control
When donsole is connected with first valve port, the compressor operating is in the twin-tub pattern.
In the air-conditioning system that embodiment of the present invention is provided, compressor can be according to operating mode in single cylinder pattern and twin-tub pattern
Middle switching, and flash vessel can give compressor Gas-supplying enthalpy-increasing, improve the cooling and warming ability of air-conditioning system full working scope, and by adjusting
The aperture for saving first throttle element and the second restricting element coordinates so that the amount from flash vessel tonifying Qi to compressor is more reasonable, enters
One step improves the efficiency of air-conditioning system.
In some embodiments, the reversal valve is magnetic valve, and the magnetic valve is used to connect described the when power is off
Flatly with described second mouthful, the first and described 3rd mouthful are connected when being powered;Or
The magnetic valve is used to connect the first and described second mouthful when being powered, and described a bite is connected when power is off
With described 3rd mouthful.
In some embodiments, the reversal valve is pressure-control valve, and the pressure-control valve is used in first pressure
Effect is lower to connect the first and described second mouthful, and the first and described 3rd mouthful are connected under second pressure effect,
The first pressure is more than the second pressure.
In some embodiments, the air-conditioning system also includes:
Detecting element, the detecting element is used for the frequency for detecting the compressor;With
Controller, the controller is used to control the first when the frequency is less than default first frequency threshold value
Connected with described 3rd mouthful so that the compressor operating is in the single cylinder pattern;And it is pre- for being more than or equal in the frequency
If second frequency threshold value when control described first to be connected with described second mouthful so that the compressor operating is in the twin-tub mould
Formula.
In some embodiments, the first frequency threshold value is less than or equal to the second frequency threshold value.
In some embodiments, the first throttle element and second restricting element are electric expansion valve.
In some embodiments, the first throttle element is electric expansion valve, and second restricting element is refrigeration
Valve element, the one kind heated in valve element, capillary and heating power expansion valve;Or
Second restricting element is electric expansion valve, and the first throttle element is refrigeration valve element, heats valve element, capillary
One kind in pipe and heating power expansion valve.
In some embodiments, the air-conditioning system includes air-conditioner outdoor unit, and the air-conditioner outdoor unit includes housing, institute
State flash vessel to be arranged in the housing, the flash vessel is fixed on the housing by the first damper element.
In some embodiments, the air-conditioning system includes air-conditioner outdoor unit, and the air-conditioner outdoor unit includes housing, institute
State reversal valve to be arranged in the housing, the reversal valve is fixed on the housing by the second damper element.
The control method of the air-conditioning system of embodiment of the present invention is used to control air-conditioning system, and the air-conditioning system includes:
Compressor, the compressor can be operated in single cylinder pattern or twin-tub pattern, and the compressor is formed with the first suction
Gas port, exhaust outlet, the second air entry, gas supplementing opening and control mouth, the compressor include the first cylinder and the second cylinder, described the
One air entry connects first cylinder, and second air entry connects second cylinder;
Commutate component, and the commutation component includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, described the
One valve port can selectively communicate with second valve port or the 3rd valve port, and the 4th valve port can be selectively communicated with
Second valve port or the 3rd valve port, first valve port connect the exhaust outlet, the 4th valve port connection described the
One air entry and second air entry, the control mouth can selectively connect first valve port or the 4th valve port;
Outdoor heat exchanger and indoor heat exchanger, the first port of the outdoor heat exchanger connect second valve port, described
The second port of outdoor heat exchanger connects the first port of the indoor heat exchanger, the second port connection of the indoor heat exchanger
3rd valve port;
Flash vessel, the flash vessel includes two refrigerants mouthful and gas outlet, described two refrigerants mouths respectively with the outdoor
The second port of heat exchanger is connected with the first port of the indoor heat exchanger, and the gas outlet is connected with the gas supplementing opening;
Throttling arrangement, the throttling arrangement includes first throttle element and the second restricting element, the first throttle element
The second port and one of them described refrigerant mouthful of the outdoor heat exchanger are connected, second restricting element connects the interior
The first port of heat exchanger and another described refrigerant mouthful, the air-conditioning system is in refrigeration, the aperture of a restricting element
Less than the aperture of second restricting element, the air-conditioning system is when heating, and the aperture of second restricting element is less than institute
State the aperture of first throttle element;With
Reversal valve, the reversal valve include first, second mouthful and the 3rd mouthful, the first connects the control mouth,
Second mouthful of connection, first valve port, the 3rd mouthful of connection the 4th valve port, the first can be optionally
Described second mouthful is connected or described 3rd mouthful, so that the control mouth can selectively communicate with first valve port or institute
The 4th valve port is stated, when the control mouth is connected with the 4th valve port, the compressor operating is in the single cylinder pattern, the control
When donsole is connected with first valve port, the compressor operating is in the twin-tub pattern;
Described control method includes:
Detect the frequency of the compressor;
When the frequency is less than default first frequency threshold value, control the first to be connected with described 3rd mouthful so that
The compressor operating is in the single cylinder pattern;With
When the frequency is more than or equal to default second frequency threshold value, control described first is connected with described second mouthful
So that the compressor operating is in the twin-tub pattern.
The additional aspect and advantage of embodiments of the present invention will be set forth in part in the description, partly will be from following
Description in become obvious, or recognized by the practice of embodiments of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Obtain substantially and be readily appreciated that, wherein:
Fig. 1 is the view of the air-conditioning system of embodiment of the present invention;
Fig. 2 is the view of the air-conditioning system of embodiment of the present invention;
Fig. 3 is the schematic flow sheet of the control method of the air-conditioning system of embodiment of the present invention;
Fig. 4 is the diagrammatic cross-section of the flash vessel of embodiment of the present invention;
Fig. 5 is the part-structure schematic diagram of the escape pipe of the flash vessel of embodiment of the present invention;;
Fig. 6 is the internal structure schematic diagram of the air-conditioner outdoor unit of embodiment of the present invention;
Fig. 7 is the enlarged diagram of VII part of Fig. 6 air-conditioner outdoor unit;
Fig. 8 is the flash vessel of embodiment of the present invention and the schematic perspective view of the first damper element;
Fig. 9 is the flash vessel of embodiment of the present invention and the schematic perspective view of the first damper element;
Figure 10 is the enlarged diagram of Ⅹ part of Fig. 6 air-conditioner outdoor unit;
The schematic perspective view of second damper element of the air-conditioner outdoor unit of Figure 11 present embodiments.
Main element symbol description:
Flash vessel 100, cylinder 10, host cavity 11, the bottom 12 of cylinder 10, the side wall 13 of cylinder 10, the top of cylinder 10
14th, the 15, first refrigerant pipe 20 of perforation, the 21, first refrigerant inlet 22 of the first refrigerant mouthful, the second refrigerant pipe 30, inserting end the 31, the 3rd
Refrigerant mouthful the 32, second refrigerant mouthful 33, escape pipe 40, gas outlet 41, the side wall 42 of escape pipe 40, air admission hole 43, air-conditioner outdoor unit
102nd, housing 110, chassis 112, side plate 114, dividing plate 116, the first damper element 120, the first block rubber 120, clip slot 122,
One jaws 124, the second jaws 126, reversal valve 130, valve body 131, first 132, second mouthful 133, the 3rd mouthful 134, second subtract
Shake element 140, the second block rubber 140, mounting groove 141, trough of belt 142, bandage 150, air-conditioning system 200, compressor 210, first
Air entry 211, exhaust outlet 212, gas supplementing opening 213, the second air entry 214, control mouth 215, the first cylinder 216, the second cylinder
217th, commutation component 220, the first valve port 221, the second valve port 222, the 3rd valve port 223, the 4th valve port 224, outdoor heat exchanger
230th, the first port 231 of outdoor heat exchanger 230, the second port 232 of outdoor heat exchanger 230, indoor heat exchanger 240, interior
The first port 241 of heat exchanger 240, first throttle element 250, the first port 251 of first throttle element 250, first throttle
The second port 252 of element 250, the second restricting element 260, the throttling member of first port 261, second of the second restricting element 260
The second port 262 of part 260, detecting element 270, controller 280.
Embodiment
Embodiments of the present invention are described further below in conjunction with accompanying drawing.Same or similar label is from beginning in accompanying drawing
To representing same or similar element or element with same or like function eventually.
In addition, the embodiments of the present invention described below in conjunction with the accompanying drawings are exemplary, it is only used for explaining the present invention's
Embodiment, and be not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
Fig. 1 and 2 is referred to, the air-conditioning system 200 of embodiment of the present invention includes compressor 210, commutation component 220, room
External heat exchanger 230, indoor heat exchanger 240, flash vessel 100, throttling arrangement and reversal valve 130.
Compressor 210 can be operated in single cylinder pattern or twin-tub pattern.Compressor 210 is formed with the first air entry 211, row
Gas port 212, gas supplementing opening 213, the second air entry 214 and control mouth 215.Compressor 210 includes the first cylinder 216 and the second cylinder
217.First air entry 211 connects the first cylinder 216, and the second air entry 214 connects the second cylinder 217.
The component 220 that commutates includes the first valve port 221, the second valve port 222, the 3rd valve port 223 and the 4th valve port 224.First
Valve port 221 can selectively communicate with the second valve port 222 or the 3rd valve port 223, and the 4th valve port 224 can selectively communicate with
Two valve ports 222 or the 3rd valve port 223.First valve port 221 connects exhaust outlet 212, and the 4th valve port 224 connects the first air entry 211
With the second air entry 214, control mouth 215 can selectively communicate with the first valve port 221 or the 4th valve port 224.
The first port 231 of outdoor heat exchanger connects the second valve port 222, the communication chamber of second port 232 of outdoor heat exchanger
The first port 241 of interior heat exchanger, the second port 242 of indoor heat exchanger connects the 3rd valve port 223.
Flash vessel 100 includes two refrigerants mouthful (the first refrigerant mouthful the 21, second refrigerant mouthful 33) and gas outlet 41, two refrigerants
Mouth (21,33) is connected with the second port 232 of outdoor heat exchanger and the first port 241 of indoor heat exchanger respectively, gas outlet 41
Connected with gas supplementing opening 213.
Throttling arrangement includes the restricting element 260 of first throttle element 250 and second.First throttle element 250 connects outdoor
The second port 232 of heat exchanger and a refrigerant mouthful 21, the second restricting element 260 connect the first port 241 of indoor heat exchanger
With another refrigerant mouthful 33.Air-conditioning system 200 is in refrigeration, and the aperture of first throttle element 250 is less than the second restricting element 260
Aperture.Air-conditioning system 200 is when heating, and the aperture of the second restricting element 260 is less than the aperture of first throttle element 250.
Reversal valve 130 includes first 132, second mouthful 133 and the 3rd mouthful 134, the connection control mouth 215 of first 132, the
Two mouthful of 133 the first valve port 221 of connection, the 3rd mouthful of 134 the 4th valve port 224 of connection.First 132 can selectively communicate with second
Mouthfuls 133 or the 3rd mouthful 134, so that control mouth 215 can selectively communicate with the first valve port 221 or the 4th valve port 224, control
When donsole 215 is connected with the 4th valve port 224, compressor 210 is operated in single cylinder pattern, and control mouth 215 is connected with the first valve port 221
When, compressor 210 is operated in twin-tub pattern.
In the air-conditioning system 200 that embodiment of the present invention is provided, compressor 210 can be according to operating mode in single cylinder pattern and double
Switch in cylinder pattern, and flash vessel 100 can give the Gas-supplying enthalpy-increasing of compressor 210, improve the refrigerated medium of the full working scope of air-conditioning system 200
Heat energy power, and coordinated by the aperture for adjusting the restricting element 260 of first throttle element 250 and second so that mended from flash vessel 100
The amount of gas to compressor 210 is more reasonable, further improves the efficiency of air-conditioning system 200.
Specifically, the refrigerant in refrigeration of air-conditioning system 200 successively flows through first throttle element 250, flash vessel 100 and second
Restricting element 260, the aperture of first throttle element 250 is less than the aperture of the second restricting element 260;Air-conditioning system 200 is being heated
When refrigerant successively flow through the second restricting element 260, flash vessel 100 and first throttle element 250, the second restricting element 260 is opened
Aperture of the degree less than first throttle element 250.The aperture for namely flowing through the throttling arrangement of the upstream of flash vessel 100 is less than flash vessel
The aperture of the throttling arrangement in 100 downstreams so that refrigerant is before flash vessel 100 is flowed into, and the pressure of refrigerant can decline more,
Increase flows into the refrigerant of the gas phase of flash vessel 100 so that flash vessel 100 isolated more people's gaseous coolant and can be transferred to
Gas supplementing opening 213.
In some embodiments, reversal valve 130 be magnetic valve, magnetic valve be used for when power is off connection first 132 with
Second mouthful 133, first 132 and the 3rd mouthful 134 are connected when being powered.Or magnetic valve is used to connect first when being powered
132 and second mouthful 133, first 132 and the 3rd mouthful 134 are connected when power is off.In this way, reversal valve 130 is easily controlled to cause
Compressor 210 easily switches between single cylinder pattern and twin-tub pattern.
In some embodiments, reversal valve is pressure-control valve, and pressure-control valve is used to connect under first pressure effect
Lead to first 132 and second mouthful 133, first 132 and the 3rd mouthful 134 are connected under second pressure effect.Specifically, act on
The pressure of pressure-control valve can be used for the valve core movement of control pressure control valve, and first pressure can be more than second pressure, first
Pressure might be less that second pressure.
It will be appreciated, of course, that the concrete form of reversal valve 130 is not limited to the magnetic valve and pressure-control valve of the example above,
Can be any switchably connection first 132 and second mouthful 133, first 132 and the 3rd mouthful 134 of reversal valve 130.
Specifically, in some embodiments, the restricting element 260 of first throttle element 250 and second can be electronics
Expansion valve.In this way, the restricting element 260 of first throttle element 250 and second flows through heat exchanger (230,240) and sudden strain of a muscle available for adjustment
The pressure of the refrigerant of steaming device 100, and by adjusting the aperture of the restricting element 260 of first throttle element 250 and second, so that flash distillation
Device 100 gives the air compensation of compressor 210 in the reasonable scope.
In some embodiments, first throttle element 250 is electric expansion valve, and the second restricting element 260 is refrigeration valve
Core, the one kind heated in valve element, capillary and heating power expansion valve.In this way, can be by adjusting the aperture of first throttle element 250
It is sized such that the aperture of first throttle element 250 aperture less than the second restricting element 260 in kind of refrigeration cycle, first throttle
The aperture of element 250 when heating circulation more than the second restricting element 260 aperture.
In some embodiments, the second restricting element 260 is electric expansion valve, and first throttle element 250 is refrigeration valve
Core, the one kind heated in valve element, capillary and heating power expansion valve.In this way, can by adjust the second restricting element 260 aperture
It is sized such that the aperture of the second restricting element 260 aperture more than first throttle element 250 in kind of refrigeration cycle, the second throttling
The aperture of element 260 when heating circulation less than first throttle element 250 aperture.
When air-conditioning system 200 is operated in kind of refrigeration cycle, the first valve port 221 of commutation component 220 is led with the second valve port 222
Logical and the 4th valve port 224 and the 3rd valve port 223 are turned on.
When air-conditioning system 200 is operated in kind of refrigeration cycle, the flow direction of refrigerant is as follows:Discharged from the exhaust outlet 212 of compressor 210
HTHP refrigerant through commutate component 220 the first valve port 221 and the second valve port 222 enter it is cold in outdoor heat exchanger 230
Solidifying, refrigerant is discharged after being exchanged heat in outdoor heat exchanger 230 with outdoor environment from the second port 232 of outdoor heat exchanger 230.
The liquid phase refrigerant being then discharged out passes through the reducing pressure by regulating flow of first throttle element 250, and the gas-liquid two-phase refrigerant after throttling is cold from first
Matchmaker mouthful 21 enters flash vessel 100, and the progress gas-liquid separation in flash vessel 100.The gaseous coolant isolated from flash vessel 100
From gas outlet 41 gas supplementing opening 213 is flowed through to return in compressor 210, after overcompression from the exhaust outlet 212 of compressor 210 discharge after
It is continuous to be circulated.The liquid refrigerants isolated from flash vessel 100 flows out from refrigerant mouthful 33, and then refrigerant is by the second throttling member
Entered after the reducing pressure by regulating flow of part 260 in indoor heat exchanger 240.Refrigerant is changed in heat exchanger 240 with indoor environment indoors
Heat is undergone phase transition, and indoor environment is freezed, and the gas phase refrigerant discharged from indoor heat exchanger 240 passes through commutation component 220
The 3rd valve port 223 and the 4th valve port 224, then enter from the first air entry 211 and the second air entry 214 in compressor 210, it is complete
Into kind of refrigeration cycle.
When air-conditioning system 200, which is operated in, heats circulation, the first valve port 221 and the 3rd valve port 223 of the component 220 that commutates are led
Logical and the 4th valve port 224 is turned on the second valve port 222.
Air-conditioning system 200 is operated in when heating circulation, and the flow direction of refrigerant is as follows:Discharged from the exhaust outlet 212 of compressor 210
High pressure gaseous refrigerant, through commutation component 220 the first valve port 221 and the 3rd valve port 223 get in heat exchanger 240
In, refrigerant and the indoor environment of the HTHP in indoor heat exchanger 240 carry out phase-change heat-exchange, with to indoor environment system
Heat.The liquid phase refrigerant discharged from indoor heat exchanger 240 passes through the second restricting element 260 and carries out first time throttling, the gas after throttling
Liquid two-phase mixtures refrigerant is entered in flash vessel 100, and flash vessel 100 carries out gas-liquid separation to refrigerant.Separated from flash vessel 100
The gaseous coolant gone out flows through gas supplementing opening 213 from gas outlet 41 and returned in compressor 210, after compression from the exhaust of compressor 210
The discharge of mouth 212 proceeds circulation.The liquid refrigerants isolated from flash vessel 100 flows out from refrigerant mouthful 21, through first throttle
Entered after the decompression of the second throttle of element 250 in outdoor heat exchanger 230, after the refrigerant evaporation heat exchange in outdoor heat exchanger 230,
By the second valve port 222 and the 4th valve port 224 of the component 220 that commutates, enter from the first air entry 211 and the second air entry 214
In compressor 210, completion heats circulation.
It should be noted that in embodiments of the present invention, the refrigerant flowed into from control mouth 215 can be for the second cylinder
217 back pressures provided, that is to say, that the pressure for the refrigerant discharged from the second cylinder 217 is with the refrigerant pressure of control mouth 215
Increase and increase, reduce with the reduction of the refrigerant pressure of control mouth 215, flowing to the refrigerant of control mouth 215 can not flow into
Second cylinder 217.
Referring to Fig. 1, when reversal valve 130 connects first 132 and the 3rd mouthful 134, the valve port of control mouth 215 and the 4th
224 connections, and the 4th valve port 224 is connected with the second air entry 214, that is to say, that the refrigerant pressure of control mouth 215 is inhaled with second
The refrigerant pressure of gas port 214 is equal.Now compressor 210 to the refrigerant flowed back to from the second air entry 214 without carrying out again
Compression, the refrigerant for entering the second cylinder 217 from the second air entry 214 is directly discharged from the second cylinder 217, is the second cylinder
217 have neither part nor lot in compression, and compressor 210 is operated in single cylinder pattern.
Referring to Fig. 2, when reversal valve 130 connects first 132 and second mouthful 133, the valve port of control mouth 215 and first
221 connection, that is, control mouth 215 refrigerant pressure be equal to exhaust outlet 212 refrigerant pressure.And the second air entry 214 and
Four valve ports 224 are connected, and the refrigerant pressure of the 4th valve port 224 is less than the refrigerant pressure of exhaust outlet 212, that is to say, that inhaled from second
Gas port 214 flows back to refrigerant pressure of the refrigerant pressure less than control mouth 215 of the second cylinder 217.The now refrigerant of the second cylinder 217
Need compressor 210 to flow out the second cylinder 217 after being compressed, be that the second cylinder 217 participates in compression, compressor 210
It is operated in twin-tub pattern.
It should be noted that no matter air-conditioning system 200 is operated in kind of refrigeration cycle or heats circulation, compressor 210 all may be used
To be operated in single cylinder pattern or twin-tub pattern, to improve the cooling and warming ability of air-conditioning system 200.
Referring again to Fig. 1 and Fig. 2, in some embodiments, air-conditioning system 200 also includes detecting element 270 and control
Device 280.Detecting element 270 is used for the frequency for detecting compressor 210.Controller 280 is used to be less than the default first frequency in frequency
First 132 is controlled to be connected with the 3rd mouthful 134 so that compressor 210 is operated in single cylinder pattern during rate threshold value;And in frequency
First 132 is controlled to be connected with second mouthful 133 so that compressor operating is double during more than or equal to default second frequency threshold value
Cylinder pattern.
In addition, referring to Fig. 3, the control method of the air-conditioning system 200 of embodiment of the present invention comprises the following steps:
S10:Detect the frequency of compressor 210;
S20:When frequency is less than default first frequency threshold value, control first is connected with the 3rd mouthful so that compressor work
Make in single cylinder pattern;With
S30:When frequency is more than or equal to default second frequency threshold value, control first is connected with second mouthful so as to press
Contracting machine is operated in twin-tub pattern.
In the control method of above-mentioned air-conditioning system 200 and air-conditioning system 200, by detecting the frequency of compressor 210, in frequency
Rate make it that compressor 210 is operated in twin-tub pattern when being more than second frequency threshold value, improve that air-conditioning system 200 is quick to be heated and quickly
The ability of refrigeration.And cause compressor 210 to be operated in twin-tub pattern, air-conditioning system 200 when frequency is less than first frequency threshold value
Efficiency it is higher.
In some embodiments, first frequency threshold value is less than or equal to second frequency threshold value.That is, compressor
210 frequencies being operated under twin-tub pattern are more than the frequency that compressor 210 is operated under single cylinder pattern.Specifically, first frequency
Threshold value can be 33 hertz, 25 hertz, 20 hertz etc., and second frequency threshold value can be 47 hertz, 50 hertz, 52 hertz etc., the
One frequency threshold and second frequency threshold value can make a choice according to the species of compressor 210.
Referring to Fig. 4, in some embodiments, flash vessel 100 includes cylinder 10, the first refrigerant pipe 20, the second refrigerant
Pipe 30 and escape pipe 40.First refrigerant pipe 20, the second refrigerant pipe 30 and escape pipe 40 are stretched into cylinder 10.
Cylinder 10 is formed with host cavity 11.Escape pipe 40, the first refrigerant pipe 20 and the second refrigerant pipe 30 stretch into host cavity
In 11.The corrosion-resistant material such as can use copper of cylinder 10 is made.It is preferred that cylinder 10 is cylindrical.Certainly, cylinder 10
Can also be in other shapes such as square tube shapes.
It is appreciated that cylinder 10 is formed with and confesses tracheae 40, the first refrigerant pipe 20 and the second refrigerant pipe 30 and stretch into host cavity
Perforation 15 in 11.Sealed around perforation 15 with escape pipe 40, the first refrigerant pipe 20 and the second refrigerant pipe 30 to prevent cylinder
Secondary refrigerant leakage in body 10.
First refrigerant pipe 20 is cylindrical, and the first refrigerant pipe 20 is made such as the corrosion-resistant material as copper.In some realities
Apply in mode, the first refrigerant pipe 20 is cylindrical.It is appreciated that in other embodiments, the first refrigerant pipe 20 can be in side
The other shapes such as tubular.
First refrigerant pipe 20 is stretched into host cavity 11 from the bottom 12 of cylinder 10, it is preferred that the axial direction of the first refrigerant pipe 20
With the axially in parallel of cylinder 10 or overlapping.First refrigerant pipe 20 is formed with the refrigerant inlet 22 of the first refrigerant mouthful 21 and first.First
Refrigerant mouthful 21 is located at outside host cavity 11, and the first refrigerant inlet 22 is located in host cavity 11.First refrigerant inlet 22 connects host cavity
11 and first refrigerant mouthfuls 21.
The refrigerant of gas-liquid binary states from the first refrigerant mouthfuls 21 after the first refrigerant inlet 22 enters in host cavity 11, it is gaseous
Refrigerant is separated from the refrigerant of liquid.The refrigerant of liquid is located at the bottom of cylinder 10, and gaseous refrigerant is located at cylinder 10
Top.
First refrigerant inlet 22 is opened in the side wall of the first refrigerant pipe 20, and the first 22 points of refrigerant inlet is multigroup, Duo Zu
Axial uniform intervals of one refrigerant inlet 22 along the first refrigerant pipe 20 are set.Multigroup first refrigerant inlet 22 can cause refrigerant can
To be rapidly introduced into host cavity 11.In some embodiments, the quantity of every group of first refrigerant inlet 22 is multiple, same group
Multiple first refrigerant inlets 22 being provided at circumferentially spaced along the first refrigerant pipe 20.It is preferred that same group of multiple first refrigerants
Circumferential uniform intervals of the entrance 22 along the first refrigerant pipe 20 are set.It is appreciated that in other embodiments, every group of first refrigerant
The quantity of entrance 22 can be single.
Second refrigerant pipe 30 is cylindrical, and the second refrigerant pipe 30 is made such as the corrosion-resistant material as copper.In some realities
Apply in mode, the second refrigerant pipe 30 is cylindrical.It is appreciated that in other embodiments, the second refrigerant pipe 30 can be in side
The other shapes such as tubular.In the example of fig. 4, the second refrigerant pipe 30 is stretched into host cavity 11 from the side wall 13 of cylinder 10, and second
The inserting end 31 of refrigerant pipe 30 is close to the bottom 12 of cylinder 10.In the example of figure 9, the second refrigerant pipe 30 is from the bottom of cylinder 10
12 stretch into host cavity 11.
Second refrigerant pipe 30 is formed with the second refrigerant inlet 32 and the second refrigerant mouthful 33.Second refrigerant inlet 32, which is located at, to be housed
In chamber 11.Second refrigerant mouthful 33 is located at outside host cavity 11.Second refrigerant inlet 32 connection host cavity 11 and second refrigerant mouthful 33.Such as
This, liquid refrigerants in cylinder 10 can enter from the second refrigerant inlet 32 in second refrigerant pipe 30 after from 33 rows of the second refrigerant mouthful
Go out to outside host cavity 11.
In some embodiments, the quantity of the second refrigerant inlet 32 is multiple, multiple second refrigerant inlets 32 along second
The circumferential uniform intervals of refrigerant pipe 30 are set.
It should be noted that refrigerant can be flowed into host cavity 11 from the first refrigerant mouthful 21, it is cold then in turn through first
Flowed out to after matchmaker's entrance 22, the second refrigerant inlet 32 and the second refrigerant mouth 33 outside host cavity 11.Refrigerant can also be from the second refrigerant
Mouth 33 is flowed into host cavities 11, after the second refrigerant inlet 32, the first refrigerant inlet 22 and the first refrigerant mouth 21
Flow out to outside host cavity 11.
Incorporated by reference to Fig. 5, escape pipe 40 is cylindrical, and escape pipe 40 is made such as the corrosion-resistant material as copper.Escape pipe
40 stretch into host cavity 11 from the top 14 of cylinder 10.In this way, the gas positioned at the top of cylinder 10 can enter in escape pipe 40
To flow out host cavity 11.It is preferred that the axial direction of escape pipe 40 and the axially in parallel of cylinder 10 or overlapping and being configured so that escape pipe
40 easily stretch into host cavity 11.The depth D1 that escape pipe 40 is stretched into host cavity 11 is the depth D2 of host cavity 11 1/3-
1/2.The gas in host cavity 11 is so conducive to enter in escape pipe 40.
Escape pipe 40 is formed with gas outlet 41, and gas outlet 41 is located at outside host cavity 11.The side wall 42 of escape pipe 40 is offered
Multigroup air admission hole 43, multigroup air admission hole 43 is located in host cavity 11, axially spaced-apart distribution of multigroup air admission hole 43 along escape pipe 40,
Every group of connection gas outlet 41 of air admission hole 43 and host cavity 11.So make it that the gas (gaseous coolant) in host cavity 11 can be quick
Ground flows out host cavity 11, to reduce the air pressure of host cavity 11, so as to improve the effect of the gas-liquid separation of flash vessel 100.
Specifically, the gas that multigroup air admission hole 43 can increase in host cavity 11 enters the area of escape pipe 40, so as to
To increase the flow of the gas entered in escape pipe 40, as the gas in host cavity 11 flows out, the air pressure in host cavity 11 subtracts
Small, the gas in the refrigerant liquid in host cavity 11 can be separated to cooling medium liquid in vitro, so as to improve the gas-liquid of flash vessel 100
The effect of separation.
Manufactured for the ease of escape pipe 40, it is preferred that axial uniform intervals distribution of the multigroup air admission hole 43 along escape pipe 40.
In other words, the distance between two groups of air admission holes 43 of arbitrary neighborhood are equal.
In some embodiments, air admission hole 43 is rounded, it will be understood that in other embodiments, and air admission hole 43 can
With in the shape such as polygon is fan-shaped or square.
In some embodiments, the quantity of every group of air admission hole 43 is multiple, and same group of multiple air admission holes 43 are along outlet
The circumferentially-spaced distribution of pipe 40.It is preferred that circumferential uniform intervals distribution of same group of the multiple air admission holes 43 along escape pipe 40.Such as
This, can open up to form more air admission holes 43 to increase the stream that the gas in host cavity 11 enters escape pipe 40 on escape pipe 40
Amount.It is appreciated that in other embodiments, the quantity of every group of air admission hole 43 can be single.
Fig. 6 and Fig. 7 is referred to, in some embodiments, air-conditioning system 200 is included outside air-conditioner outdoor unit 102, air-conditioning room
Machine 102 includes housing 110 and flash vessel 100.Flash vessel 100 is arranged in housing 110.Flash vessel 100 passes through the first damping member
Part 120 is fixed on housing 110.
In the air-conditioner outdoor unit 102 of embodiment of the present invention, the first damper element 120 can absorb the shake of flash vessel 100
It is dynamic, so as to reduce the noise of the formation of flash vessel 100, improve Consumer's Experience.
Specifically, housing 110 includes chassis 112 and side plate 114.The connecting base plate 112 of side plate 114.First damper element 120
It is fixed on chassis 112, flash vessel 100 is fixed on the first damper element 120.So it is easy to the first damper element 120 and sudden strain of a muscle
The installation of steaming device 100.First damper element 120 is for example fixed on by way of bonding on chassis 112, and for example passes through screw etc.
Fastener is fixed on chassis 112.
In some embodiments, the first damper element 120 is the first block rubber 120.It is appreciated that in other embodiment party
In formula, the first damper element 120 can be the flexible elements such as spring.
In some embodiments, the first block rubber 120 is in cuboid, it will be understood that in other embodiments, and first
Block rubber 120 can be in the other shapes such as round table-like or cylindric.
Specifically, the first block rubber 120 offers clip slot 122, and clip slot 122 clamps flash vessel 100 so that flash vessel 100 is solid
It is scheduled on the first block rubber 120.In this way, clip slot 122 causes flash vessel 100 is dismantled more to facilitate.It should be noted that clip slot
122 clamping flash vessels 100 refer to that flash vessel 100 can't be relative to the first block rubber when air-conditioner outdoor unit 102 vibrates
120 are moved.
As shown in figure 8, in one example, clip slot 122 clamps the first refrigerant pipe 20.In this way, due to the first refrigerant pipe 20
Size it is smaller, facilitate clip slot 122 to step up the first refrigerant pipe 20 so that flash vessel 100 is fixed on the first block rubber 120.
As shown in figure 9, in another example, being stretched into the second refrigerant pipe 30 from the bottom 12 of cylinder 10 in cylinder 10
When, the quantity of clip slot 122 is two, and two clip slots 122 clamp the first refrigerant pipe 20 and the second refrigerant pipe 30 respectively.So can be with
Flash vessel 100 is further avoided to be moved relative to the first block rubber 120.
Specifically, each clip slot 122 is formed with the first jaws 124 and the second jaws 126, and the first refrigerant pipe 20 and second is cold
Matchmaker's pipe 30 passes through the corresponding jaws 126 of first jaws 124 and second, so that the second refrigerant pipe 30 and the part of the second refrigerant pipe 30 position
In in the first block rubber 120, so that clip slot 122 can clamp the first refrigerant pipe 20 and the second refrigerant pipe 30.
Fig. 6 and Figure 10 is referred to, in some embodiments, air-conditioner outdoor unit 102 also includes reversal valve 130, reversal valve
130 are fixed on housing 110 by the second damper element 140.
In this way, the second damper element 140 can absorb the vibrations of reversal valve 130, so as to reduce making an uproar for the formation of reversal valve 130
Sound, improves Consumer's Experience.
Specifically, such as solenoid directional control valve 130 of reversal valve 130, is so easy to control reversal valve 130 to work.
In some embodiments, housing 110 includes dividing plate 116, the space that the spaced side plate 114 of dividing plate 116 is surrounded.Second
Damper element 140 is fixed on dividing plate 116.Reversal valve 130 is fixed on the second damper element 140.In this way, dividing plate 116 can be with
Larger position is provided to install for the second damper element 140.
In some embodiments, the second damper element 140 includes the second block rubber 140.It is appreciated that in other implementations
In mode, the second damper element 140 can be the flexible members such as spring.
Specifically, incorporated by reference to Figure 11, the second block rubber 140 offers mounting groove 141, and reversal valve 130 includes valve body 131,
Valve body 131 is contained in mounting groove 141 at least in part.In this way, mounting groove 141 causes the block rubber 140 of reversal valve 130 and second
Connection area it is larger, be conducive to reversal valve 130 to install stable.In some embodiments, valve body 131 is partly contained in peace
In tankage 141.
It is preferred that the shape and size of valve body 131 and the shape and matching size of mounting groove 141.In some embodiments
In, valve body 131 is cylindrical, and the inner surface of mounting groove 141 is circular arc with the profile of valve body 131 to match.It is appreciated that peace
The size of tankage 141 is slightly larger than the size of mounting groove 141, so that valve body 131 can be installed in mounting groove 141.
In some embodiments, reversal valve 130 bundlees the block rubber 140 of valve body 131 and second by bandage 150 and fixed
On the second block rubber 140.In this way, the fixed form of reversal valve 130 is simple, reversal valve 130 is easily from the second block rubber 140
On disassemble.
Specifically, trough of belt 142 is offered on the second block rubber 140, trough of belt 142 is located at valve body 131 radially.Bandage
150 pass through trough of belt 142 and bundle valve body 131 along the circumferencial direction of valve body 131.Moved in this way, trough of belt 142 can limit bandage 150
It is dynamic so that reversal valve 130, which is arranged on the second block rubber 140, more to be stablized.
In some embodiments, the quantity of bandage 150 is two, two bandages 150 axially spaced-apart along valve body 131 point
Cloth.
In the description of this specification, reference term " some embodiments ", " embodiment ", " some embodiment party
Formula ", " exemplary embodiment ", " example ", the description of " specific example " or " some examples " mean with reference to the embodiment
Or specific features, structure, material or the feature of example description are contained at least one embodiment of the present invention or example.
In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, description
Specific features, structure, material or feature can be in any one or more embodiments or example with suitable side
Formula is combined.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one described feature.In the description of the invention, " multiple " are meant that at least two, such as two,
Three, unless otherwise specifically defined.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification, and the scope of the present invention is limited by claim and its equivalent.
Claims (10)
1. a kind of air-conditioning system, it is characterised in that including:
Compressor, the compressor can be operated in single cylinder pattern or twin-tub pattern, the compressor be formed with the first air entry,
Second air entry, gas supplementing opening, control mouth and exhaust outlet, the compressor include the first cylinder and the second cylinder, and described first inhales
Gas port connects first cylinder, and second air entry connects second cylinder;
Commutate component, and the commutation component includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, first valve
Mouth can selectively communicate with second valve port or the 3rd valve port, and the 4th valve port can selectively communicate with described
Second valve port or the 3rd valve port, first valve port connect the exhaust outlet, and the 4th valve port connection described first is inhaled
Gas port and second air entry, the control mouth can selectively communicate with first valve port or the 4th valve port;
Outdoor heat exchanger and indoor heat exchanger, the first port of the outdoor heat exchanger connect second valve port, the outdoor
The second port of heat exchanger connects the first port of the indoor heat exchanger, and the second port connection of the indoor heat exchanger is described
3rd valve port;
Flash vessel, the flash vessel includes two refrigerants mouthful and gas outlet, described two refrigerants mouths respectively with the outdoor heat exchange
The second port of device is connected with the first port of the indoor heat exchanger, and the gas outlet is connected with the gas supplementing opening;
Throttling arrangement, the throttling arrangement includes first throttle element and the second restricting element, the first throttle element connection
The second port of the outdoor heat exchanger and one of them described refrigerant mouthful, second restricting element connect the indoor heat exchange
The first port of device and another described refrigerant mouthful, the air-conditioning system is in refrigeration, and the aperture of a restricting element is less than
The aperture of second restricting element, the air-conditioning system is when heating, and the aperture of second restricting element is less than described the
The aperture of one restricting element;With
Reversal valve, the reversal valve include first, second mouthful and the 3rd mouthful, the first connects the control mouth, described
Second mouthful of connection first valve port, the 3rd mouthful of connection the 4th valve port, the first can be selectively communicated with
Described second mouthful or described 3rd mouthful, so that the control mouth can selectively communicate with first valve port or described
Four valve ports, when the control mouth is connected with the 4th valve port, the compressor operating is in the single cylinder pattern, the control mouth
When being connected with first valve port, the compressor operating is in the twin-tub pattern.
2. air-conditioning system according to claim 1, it is characterised in that the reversal valve is magnetic valve, the magnetic valve is used
In connecting the first and described second mouthful when power is off, the first and described 3rd mouthful are connected when being powered;Or
The magnetic valve is used to connect the first and described second mouthful when being powered, and described a bite and institute are connected when power is off
State the 3rd mouthful.
3. air-conditioning system according to claim 1, it is characterised in that the reversal valve is pressure-control valve, the pressure
Control valve is used to connect the first and described second mouthful under first pressure effect, connects described under second pressure effect
First with described 3rd mouthful, the first pressure be more than the second pressure.
4. air-conditioning system according to claim 1, it is characterised in that the air-conditioning system also includes:
Detecting element, the detecting element is used for the frequency for detecting the compressor;With
Controller, the controller is used to control the first and institute when the frequency is less than default first frequency threshold value
The 3rd mouthful of connection is stated so that the compressor operating is in the single cylinder pattern;And it is default for being more than or equal in the frequency
Described first is controlled to be connected with described second mouthful during second frequency threshold value so that the compressor operating is in the twin-tub pattern.
5. air-conditioning system according to claim 4, it is characterised in that the first frequency threshold value is less than or equal to described the
Two frequency thresholds.
6. air-conditioning system according to claim 1, it is characterised in that the first throttle element and the second throttling member
Part is electric expansion valve.
7. air-conditioning system according to claim 1, it is characterised in that the first throttle element is electric expansion valve, institute
It is refrigeration valve element, the one kind heated in valve element, capillary and heating power expansion valve to state the second restricting element;Or
Second restricting element be electric expansion valve, the first throttle element for refrigeration valve element, heat valve element, capillary and
One kind in heating power expansion valve.
8. air-conditioning system according to claim 1, it is characterised in that the air-conditioning system includes air-conditioner outdoor unit, described
Air-conditioner outdoor unit includes housing, and the flash vessel is arranged in the housing, and the flash vessel is fixed by the first damper element
On the housing.
9. air-conditioning system according to claim 1, it is characterised in that the air-conditioning system includes air-conditioner outdoor unit, described
Air-conditioner outdoor unit includes housing, and the reversal valve is arranged in the housing, and the reversal valve is fixed by the second damper element
On the housing.
10. a kind of control method of air-conditioning system, it is characterised in that the air-conditioning system includes:
Compressor, the compressor can be operated in single cylinder pattern or twin-tub pattern, the compressor be formed with the first air entry,
Exhaust outlet, the second air entry, gas supplementing opening and control mouth, the compressor include the first cylinder and the second cylinder, and described first inhales
Gas port connects first cylinder, and second air entry connects second cylinder;
Commutate component, and the commutation component includes the first valve port, the second valve port, the 3rd valve port and the 4th valve port, first valve
Mouth can selectively communicate with second valve port or the 3rd valve port, and the 4th valve port can selectively communicate with described
Second valve port or the 3rd valve port, first valve port connect the exhaust outlet, and the 4th valve port connection described first is inhaled
Gas port and second air entry, the control mouth can selectively connect first valve port or the 4th valve port;
Outdoor heat exchanger and indoor heat exchanger, the first port of the outdoor heat exchanger connect second valve port, the outdoor
The second port of heat exchanger connects the first port of the indoor heat exchanger, and the second port connection of the indoor heat exchanger is described
3rd valve port;
Flash vessel, the flash vessel includes two refrigerants mouthful and gas outlet, described two refrigerants mouths respectively with the outdoor heat exchange
The second port of device is connected with the first port of the indoor heat exchanger, and the gas outlet is connected with the gas supplementing opening;
Throttling arrangement, the throttling arrangement includes first throttle element and the second restricting element, the first throttle element connection
The second port of the outdoor heat exchanger and one of them described refrigerant mouthful, second restricting element connect the indoor heat exchange
The first port of device and another described refrigerant mouthful, the air-conditioning system is in refrigeration, and the aperture of a restricting element is less than
The aperture of second restricting element, the air-conditioning system is when heating, and the aperture of second restricting element is less than described the
The aperture of one restricting element;With
Reversal valve, the reversal valve include first, second mouthful and the 3rd mouthful, the first connects the control mouth, described
Second mouthful of connection first valve port, the 3rd mouthful of connection the 4th valve port, the first can be selectively communicated with
Described second mouthful or described 3rd mouthful, so that the control mouth can selectively communicate with first valve port or described
Four valve ports, when the control mouth is connected with the 4th valve port, the compressor operating is in the single cylinder pattern, the control mouth
When being connected with first valve port, the compressor operating is in the twin-tub pattern;
Described control method includes:
Detect the frequency of the compressor;
When the frequency is less than default first frequency threshold value, the first is controlled to be connected with described 3rd mouthful so that described
Compressor operating is in the single cylinder pattern;With
The frequency be more than or equal to default second frequency threshold value when, control described first connected with described second mouthful so that
The compressor operating is in the twin-tub pattern.
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CN201710525294.3A CN107289659A (en) | 2017-06-30 | 2017-06-30 | The control method of air-conditioning system and air-conditioning system |
PCT/CN2017/117887 WO2019000868A1 (en) | 2017-06-30 | 2017-12-22 | Air conditioning system and control method for air conditioning system |
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CN107816817A (en) * | 2017-11-24 | 2018-03-20 | 安徽美芝精密制造有限公司 | Compressor and its refrigerating plant |
WO2019000869A1 (en) * | 2017-06-30 | 2019-01-03 | 广东美的制冷设备有限公司 | Air conditioning system and air conditioning system control method |
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CN105091395A (en) * | 2015-08-31 | 2015-11-25 | 广东美的制冷设备有限公司 | Cooling and heating type air-conditioner system and single-cooling type air-conditioner system |
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Application publication date: 20171024 |