CN106440132A - Cooling-and-heating-type air conditioner and control method thereof - Google Patents
Cooling-and-heating-type air conditioner and control method thereof Download PDFInfo
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- CN106440132A CN106440132A CN201610866892.2A CN201610866892A CN106440132A CN 106440132 A CN106440132 A CN 106440132A CN 201610866892 A CN201610866892 A CN 201610866892A CN 106440132 A CN106440132 A CN 106440132A
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a cooling-and-heating-type air conditioner and a control method thereof. The cooling-and-heating-type air conditioner comprises a double-cylinder compressor, a reversing component, an outdoor heat exchanger, a gas-liquid separator and an indoor heat exchanger component, wherein the double-cylinder compressor comprises a first air cylinder and a second air cylinder; the reversing component comprises exhaust valve ports, a first outdoor connection valve port, a second outdoor connection valve port, a first indoor connection valve port, a second indoor connection valve port, a first air suction valve port and a second air suction valve port; the first end of the outdoor heat exchanger is connected with the first outdoor connection valve port and the second outdoor connection valve port; the second end of the outdoor heat exchanger is connected with the first end of a throttling element; two ends of the first indoor heat exchange part of the indoor heat exchanger component are separately connected with the first indoor connection valve port and a second connection port of the gas-liquid separator; and two ends of the second heat exchange part of the indoor heat exchanger component are separately connected with the second indoor connection valve port and a third connection port of the gas-liquid separator. By adopting the air conditioner disclosed by the invention, the energy efficiency level of the cooling-and-heating-type air conditioner can be optimized.
Description
Technical field
The present invention relates to air-conditioning technical field, especially relates to a kind of heating and air conditioner that can lift air-conditioning efficiency and control
Method processed.
Background technology
Usually, air-conditioner is in refrigeration, and the coolant after restricting element throttling enters directly in indoor heat exchanger
Row heat exchange, due to being mixed with a part of gaseous coolant in the coolant after throttling, the gaseous coolant for entering in indoor heat exchanger is not only
The heat transfer effect of impact indoor heat exchanger, the compression power consumption for also resulting in compressor increases, and the Energy Efficiency Ratio of compressor reduces, so as to
Have influence on the efficiency level of air-conditioner.
Content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.For this purpose, the present invention is carried
Go out a kind of heating and air conditioner, the heat transfer effect of indoor heat exchanger component can be not only improved, and duplex cylinder compressor can be improved
Energy Efficiency Ratio, reduces the power consumption of duplex cylinder compressor, optimizes the efficiency level of heating and air conditioner, good energy-conserving effect.
The present invention also proposes a kind of control method of heating and air conditioner.
Heating and air conditioner according to embodiments of the present invention, including：Duplex cylinder compressor, the duplex cylinder compressor includes shell
Body, the first cylinder and the second cylinder, the housing is provided with air vent, the first air entry and the second air entry, first gas
Cylinder and second cylinder are respectively provided in the housing, and the air intake passage of first cylinder is with first air entry even
Logical, the air intake passage of second cylinder is connected with second air entry, the appearance of first cylinder and second cylinder
The span of product ratio is 1～20；Commutation component, the commutation component include exhaust valve port, the first outdoor connection valve port, the
Two outdoor connection valve ports, the first indoor connection valve port, the second indoor connection valve mouth, the first air-breathing valve port and the second air-breathing valve port,
The exhaust valve port is connected with the air vent, and the first air-breathing valve port is connected with first air entry, and described second inhales
Valve port while is connected with second air entry；Outdoor heat exchanger, the first end of the outdoor heat exchanger is outdoor with described first even
Connect valve port to be connected with the described second outdoor connection valve mouth, the second end of the outdoor heat exchanger and the first end phase of restricting element
Even；Gas-liquid separator, the gas-liquid separator includes first interface to the 3rd interface, the first interface and the restricting element
The second end be connected；Indoor heat exchanger component, the indoor heat exchanger component includes the first indoor heat exchanging part and the second interior
Heat exchanging part, the two ends of the described first indoor heat exchanging part are connected valve port and the gas-liquid separator with the described first interior respectively
Second interface be connected, the two ends of the second indoor heat exchanging part respectively with the described second indoor connection valve mouth and the gas-liquid
3rd interface of separator is connected.
Heating and air conditioner according to embodiments of the present invention, on the one hand by arranging the first cylinder and the second cylinder, and makes
First cylinder and the second cylinder are connected with the first air entry and the second air entry respectively, and make the appearance of the first cylinder and the second cylinder
The span of product ratio is 1～20, so as to be conducive to improving the Energy Efficiency Ratio of duplex cylinder compressor, reduces the work(of duplex cylinder compressor
Consumption；On the other hand by arranging gas-liquid separator, and indoor heat exchanger component is made to include the first indoor heat exchanging part and second Room
Interior heat exchanging part, makes the first indoor heat exchanging part be connected with the second interface of gas-liquid separator, make the second indoor heat exchanging part and
3rd interface of gas-liquid separator is connected, so as to the gas that when heating and air conditioner is freezed, gas-liquid separator separates can be easy to go out
State coolant and liquid refrigerants separately flow to indoor heat exchanger component, and indoors in heat exchanger assembly independently with interior
Environment carries out heat exchange, so as to be conducive to improving the heat transfer effect of indoor heat exchanger component, optimizes the efficiency water of heating and air conditioner
Flat, good energy-conserving effect.According to some embodiments of the present invention, the commutation component includes two cross valves, each described four-way
Valve is provided with an exhaust valve port, and one of cross valve is provided with the described first indoor connection valve port, first outdoor even
Valve port and the first air-breathing valve port is connect, another described cross valve is provided with the described second indoor connection valve mouth, the second Room
Outer connection valve port and the second air-breathing valve port.
Specifically, described two cross valves are linked when the heating and air conditioner is freezed or heated.
According to some embodiments of the present invention, the commutation component is seven port valves.
According to some embodiments of the present invention, the duplex cylinder compressor also includes the first reservoir, first reservoir
It is located at outside the housing, first reservoir is connected with first air entry and the first air-breathing valve port respectively.
Specifically, the duplex cylinder compressor also includes the second reservoir, and second reservoir is located at outside the housing, institute
State the second reservoir to be connected with second air entry and the second air-breathing valve port respectively.
Specifically, the volume of second reservoir is less than the volume of first reservoir.
According to some embodiments of the present invention, the described first indoor heat exchanging part and the second indoor heat exchanging part are two
Individual independent heat exchanger, or the first indoor heat exchanging part and the second indoor heat exchanging part be same heat exchanger
Two parts.
The control method of heating and air conditioner according to embodiments of the present invention, the flow degree of restricting element is adjustable, in refrigeration
According to the flow degree of the adjustable restricting element of the testing result of the first detection object adjustment flow degree to setting flow during operation
Degree；According to the flow degree of the adjustable restricting element of the testing result of the second detection object adjustment flow degree to setting during heating operation
Constant current is measured；Wherein first detection object includes outdoor environment temperature, the running frequency of duplex cylinder compressor, the row of air vent
At least one of pressure at expulsion of temperature degree and air vent；Second detection object includes outdoor environment temperature, twin-tub pressure
At least one of pressure at expulsion of the running frequency of contracting machine, the delivery temperature of air vent and air vent.
The control method of heating and air conditioner according to embodiments of the present invention, is conducive to improving the efficiency of air-conditioner.
Alternatively, first detection object is identical with second detection object.
The control method of heating and air conditioner according to embodiments of the present invention, the flow degree of the restricting element is fixed, root
The running frequency of the duplex cylinder compressor is adjusted to meeting bar according to the compressor operation parameters for detecting and/or outdoor environment temperature
Part, the wherein compressor operation parameters include at least one of running current, pressure at expulsion, delivery temperature.
The control method of heating and air conditioner according to embodiments of the present invention, is conducive to improving the efficiency of air-conditioner.
Description of the drawings
Fig. 1 is the schematic diagram of heating and air conditioner according to some embodiments of the invention；
Fig. 2 is the schematic diagram of the heating and air conditioner according to other embodiments of the present invention.
Reference：
Air-conditioner 100；
Duplex cylinder compressor 1；First cylinder 11；Second cylinder 12；Air vent 13；First air entry 14；Second air entry 15；
Outdoor heat exchanger 2；
Indoor heat exchanger component 3；First indoor heat exchanging part 31；Second indoor heat exchanging part 32；
Restricting element 4；
Commutation component 5；Exhaust valve port 51；First outdoor connection valve port 52；Second outdoor connection valve mouth 53；First interior is even
Connect valve port 54；Second indoor connection valve mouth 55；First air-breathing valve port 56；Second air-breathing valve port 57；
Gas-liquid separator 6；First interface 61；Second interface 62；3rd interface 63；
First sensor A；Second sensor B；
First reservoir 16；Second reservoir 17.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of Description of Drawings is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In describing the invention, it is to be understood that term " on ", D score " top ", " bottom " " interior ", the instruction such as " outward "
Orientation or position relationship are based on orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplification is retouched
State, rather than indicate or the hint device of indication or element must with specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.
In describing the invention, " multiple " are meant that at least two, such as two, three etc., unless otherwise clear and definite
Specific restriction.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integral；Can be that machinery connects
Connect, or electrically connect or can communicate each other；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, permissible
It is the connection of two element internals or the interaction relationship of two elements, unless otherwise clearly restriction.For this area
For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Below with reference to Fig. 1-Fig. 2, heating and air conditioner 100 according to embodiments of the present invention, heating and air conditioner 100 are described
Can be used to freeze to indoor environment or heat.
As Figure 1-Figure 2, heating and air conditioner 100 according to embodiments of the present invention can include duplex cylinder compressor 1, change
To component 5, outdoor heat exchanger 2, gas-liquid separator 6 and indoor heat exchanger component 3.Specifically, indoor heat exchanger component 3 is located at one
In the casing of individual indoor set.
Specifically, duplex cylinder compressor 1 includes housing, the first cylinder 11 and the second cylinder 12.First cylinder 11 and the second gas
Cylinder 12 is respectively provided in housing.For example, the first cylinder 11 and the second cylinder 12 are respectively provided in housing, and the first cylinder 11 and
Two cylinders 12 interval setting on the above-below direction of duplex cylinder compressor 1.Or, in further embodiments, 12 He of the second cylinder
Between first cylinder 11 is respectively provided in housing, and the second cylinder 12 and the first cylinder 11 are on the above-below direction of duplex cylinder compressor 1
Every setting.
As Figure 1-Figure 2, housing is provided with air vent 13, the first air entry 14 and the second air entry 15, the first cylinder
11 air intake passage is connected with the first air entry 14, and the air intake passage of the second cylinder 12 is connected with the second air entry 15, thus, is changed
Coolant after heat can return to duplex cylinder compressor 1 from the first air entry 14 and the second air entry 15 respectively.Specifically, from first
The coolant that air entry 14 is returned can flow to the first cylinder 11, and the coolant for returning from the second air entry 15 can flow to the second cylinder 12,
Coolant is independently compressed in the first cylinder 11 and the second cylinder 12, and the coolant after compression can be respectively from the first cylinder 11 and the
Two cylinders 12 flow to air vent 13, and while discharge duplex cylinder compressor 1 from air vent 13.
The span of the volume ratio of the first cylinder 11 and the second cylinder 12 is 1～20, the i.e. volume of the second cylinder 12
Span with the ratio of the volume of the first cylinder 11 is (1/20)～1.Inventor is had found in practical study, when the first gas
When the span of the volume ratio of cylinder 11 and the second cylinder 12 is 1～20, the efficiency of duplex cylinder compressor 1 is compared with prior art
Have and be obviously improved, so as to the Energy Efficiency Ratio of duplex cylinder compressor 1 is improved, reduce the power consumption of duplex cylinder compressor 1, optimize cold-warm type sky
Adjust the efficiency level of device 100.
Shown in reference picture 1- Fig. 2, commutation component 5 includes that the outdoor connection valve port 52, second of exhaust valve port 51, first is outdoor even
Connect the indoor connection valve mouth 55 of the indoor connection valve port 54, second of valve port 53, first, the first air-breathing valve port 56 and the second air-breathing valve port
57.For example, as Figure 1-Figure 2, in the first outdoor connection valve port 52 and the first indoor connection valve port 54 can be with aerofluxuss
The commutation connection of valve port 51, another in the first outdoor connection valve port 52 and the first indoor connection valve port 54 can be with the first inlet valve
56 commutation connection of mouth；One in second outdoor connection valve mouth 53 and the second indoor connection valve mouth 55 can be commutated with exhaust valve port 51
Connection, another in the second outdoor connection valve mouth 53 and the second indoor connection valve mouth 55 can with the commutation of the second air-breathing valve port 57 even
Logical, when heating and air conditioner 100 is freezed, exhaust valve port 51 is connected valve port 52 and the second outdoor connection valve respectively with the first outdoor
Mouth 53 is connected, and the first air-breathing valve port 56 is connected valve port 54 with the first interior and connects, and the second air-breathing valve port 57 is connected with the second interior
Valve port 55 is connected；When heating and air conditioner 100 is heated, exhaust valve port 51 is connected valve port 54 and second Room with the first interior respectively
Interior connection valve port 55 is connected, and the first air-breathing valve port 56 is connected valve port 52 with the first outdoor and connects, the second air-breathing valve port 57 and second
Outdoor connection valve port 53 is connected.Herein it is understood that above-mentioned with regard to the outdoor connection valve port 52 of exhaust valve port 51, first, the
One indoor connection valve port 54, first air-breathing valve port the 53, second indoor connection valve mouth 55, second of the 56, second outdoor connection valve mouth are inhaled
The mode of communicating of valve port while 57 is only schematically illustrating with reference to the accompanying drawings, cannot function as one kind restriction to the application to this,
In other embodiments, can also be with other mode of communicating, the such as first outdoor connection valve port 52 and the second indoor connection valve
One in mouth 55 is connected with the commutation of exhaust valve port 51, another in the first outdoor connection valve port 52 and the second indoor connection valve mouth 55
One connect with the commutation of the first air-breathing valve port 56, one in the second outdoor connection valve mouth 53 and the first indoor connection valve port 54 and
The commutation connection of exhaust valve port 51, another and the second air-breathing in the second outdoor connection valve mouth 53 and the first indoor connection valve port 54
The commutation connection of valve port 57.
In addition, exhaust valve port 51 is connected with air vent 13, the first air-breathing valve port 56 is connected with the first air entry 14, and second inhales
Valve port while 57 is connected with the second air entry 15, thus, simple and reliable for structure.
Specifically, as Figure 1-Figure 2, the first end (left end for for example, illustrating in Fig. 1-Fig. 2) of outdoor heat exchanger 2 with
First outdoor connection valve port 52 is connected with the second outdoor connection valve mouth 53, thus, when heating and air conditioner 100 is freezed, coolant
Outdoor heat exchanger 2 can be flowed to simultaneously from the first outdoor connection valve port 52 and the second outdoor connection valve mouth 53, work as heating and air conditioner
100 when heating, and coolant can flow to the first outdoor connection valve port 52 and the second outdoor connection valve mouth 53 respectively from outdoor heat exchanger 2.
Second end (right-hand member for for example, illustrating in Fig. 1-Fig. 2) of outdoor heat exchanger 2 and the first end (example of restricting element 4
Such as, the left end for illustrating in Fig. 1-Fig. 2) it is connected, restricting element 4 can carry out reducing pressure by regulating flow to flowing through its coolant.
As Figure 1-Figure 2, gas-liquid separator 6 includes 61 to the 3rd interface 63 of first interface, wherein first interface 61 with
Second end (right-hand member for for example, illustrating in Fig. 1-Fig. 2) of restricting element 4 is connected, and coolant can achieve gaseous state in gas-liquid separator 6
Coolant and the separation of liquid refrigerants.Alternatively, when heating and air conditioner 100 is freezed, gaseous coolant can be flowed from second interface 62
Go out, liquid refrigerants can be flowed out from the 3rd interface 63.Certainly, in further embodiments, when heating and air conditioner 100 is freezed,
Gaseous coolant can be flowed out from the 3rd interface 63, and liquid refrigerants is flowed out from second interface 62.It should be noted that gaseous coolant and liquid
State coolant is specifically relevant with the concrete structure of gas-liquid separator 6 from which interface outflow, and the structure of gas-liquid separator 6 and work are former
Reason is by as it is known to those skilled in the art that no longer describe in detail herein.
Indoor heat exchanger component 3 includes the first indoor heat exchanging part 31 and the second indoor heat exchanging part 32, and the first interior is changed
The second interface 62 that the two ends of hot part 31 are connected valve port 54 and gas-liquid separator 6 with the first interior respectively is connected, and second is indoor
The two ends of heat exchanging part 32 are connected with the 3rd interface 63 of the second indoor connection valve mouth 55 and gas-liquid separator 6 respectively.For example, when
When heating and air conditioner 100 is freezed, the liquid refrigerants that gas-liquid separator 6 is isolated can be flowed out from second interface 62 to flow to first
Indoor heat exchanging part 31 and indoor environment heat exchange, gaseous coolant can flow out from the 3rd interface 63 and flow to heat exchanging part in second Room
32 carry out heat exchange with indoor environment.Thus, when heating and air conditioner 100 is freezed, the gas that gas-liquid separator 6 can be easy to isolate
State coolant and liquid refrigerants separately flow to indoor heat exchanger component 3, and indoors in heat exchanger assembly 3 independently with room
Interior environment carries out heat exchange, so as to be conducive to improving the heat transfer effect of indoor heat exchanger component 3, optimizes heating and air conditioner 100
Efficiency level.
Alternatively, the flow degree of restricting element 4 is adjustable or non-adjustable.Specifically, restricting element 4 is electric expansion valve, hair
Tubule or choke valve.Thus, simple structure.When restricting element 4 is electric expansion valve, the flow degree of restricting element 4 is adjustable, when
When restricting element 4 is capillary tube or choke valve, the flow degree of restricting element 4 is non-adjustable.
Specifically, for example, as Figure 1-Figure 2, when heating and air conditioner 100 is freezed, exhaust valve port 51 respectively with
First outdoor connection valve port 52 is connected with the second outdoor connection valve mouth 53, and the first air-breathing valve port 56 is connected valve port 54 with the first interior
Connection, the second air-breathing valve port 57 is connected with the second indoor connection valve mouth 55, from the coolant that the air vent 13 of duplex cylinder compressor 1 is discharged
First outdoor connection valve port 52 and second outdoor connection valve mouth 53 are flowed to respectively can through exhaust valve port 51, subsequent two-way coolant divides
Not from the first outdoor connection valve port 52 and the second outdoor connection valve mouth 53 while flowing to outdoor heat exchanger 2, coolant is in outdoor heat exchange
Heat exchange is carried out with outdoor environment in device 2, subsequent coolant flows to restricting element 4, through restricting element 4 from after the outflow of outdoor heat exchanger 2
After reducing pressure by regulating flow, gas-liquid separator 6 is flowed to, coolant realizes the separation of gaseous coolant and liquid refrigerants, liquid in gas-liquid separator 6
State coolant is flowed out from second interface 62, and gaseous coolant is flowed out from the 3rd interface 63, the coolant that flows out from second interface 62 and from the
The coolant that three interface 63 flows out is flowed in the corresponding first indoor heat exchanging part 31 and the second indoor heat exchanging part 32 respectively, and respectively
From heat exchange is independently carried out with indoor environment to freeze to indoor environment, the two-way coolant after heat exchange is respectively from corresponding first Room
Interior heat exchanging part 31 and the second indoor heat exchanging part 32 flow out；The coolant for flowing out from the first indoor heat exchanging part 31 is through the first Room
Interior connection valve port 54 and the first air-breathing valve port 56, and the first cylinder 11 is flowed to through the first air entry 14, from the second indoor heat exchange
The coolant that part 32 is flowed out is through the second indoor connection valve mouth 55 and the second air-breathing valve port 57, and flows to through the second air entry 15
Second cylinder 12；Two-way coolant respectively in corresponding first cylinder 11 and the second cylinder 12 independent compression to form high temperature respectively
The coolant of high pressure, the two-way coolant after compression can flow to air vent 13 from the first cylinder 11 and the second cylinder 12 respectively, and simultaneously
Duplex cylinder compressor 1 is discharged from air vent 13, so as to form the kind of refrigeration cycle of heating and air conditioner 100.
When heating and air conditioner 100 is heated, for example, as Figure 1-Figure 2, exhaust valve port 51 is indoor with first respectively connects
Connect valve port 54 to connect with the second indoor connection valve mouth 55, the first air-breathing valve port 56 is connected valve port 52 with the first outdoor and connects, second
Air-breathing valve port 57 is connected with the second outdoor connection valve mouth 53, and the coolant that discharges from the air vent 13 of duplex cylinder compressor 1 can be through row
Valve port while 51 flows to the first indoor connection valve port 54 and the second indoor connection valve mouth 55, and subsequent two-way coolant is indoor from first respectively
Connection valve port 54 and the second indoor connection valve mouth 55 flow to the corresponding first indoor heat exchanging part 31 and the second indoor heat exchanging part
32, two-way coolant is carried out with indoor environment respectively in the corresponding first indoor heat exchanging part 31 and the second indoor heat exchanging part 32
Heat exchange to give indoor heating, after subsequent two-way coolant is flowed out from the first indoor heat exchanging part 31 and the second indoor heat exchanging part 32,
Through corresponding second interface 62 and the 3rd interface 63 while flowing to gas-liquid separator 6, subsequent coolant through first interface 61 from
Flow out in gas-liquid separator 6, and restricting element 4 flowed to, after 4 reducing pressure by regulating flow of restricting element, coolant flows to outdoor heat exchanger 2,
Coolant carries out heat exchange with outdoor environment in outdoor heat exchanger 2, and the coolant after heat exchange is flowed out from outdoor heat exchanger 2, and is flowed respectively
To the first outdoor connection valve port 52 and the second outdoor connection valve mouth 53 to flow into commutation component 5；Flow to the first outdoor connection valve port
52 coolant, further across the first air-breathing valve port 56, and flows to the first cylinder 11 through the first air entry 14, flows to second Room
The coolant of outer connection valve port 53 is further across the second air-breathing valve port 57, and flows to the second cylinder 12 through the second air entry 15；
Two-way coolant respectively in corresponding first cylinder 11 and the second cylinder 12 independent compression to form the coolant of High Temperature High Pressure respectively,
Two-way coolant after compression can flow to air vent 13 from the first cylinder 11 and the second cylinder 12 respectively, and while from 13 row of air vent
Going out duplex cylinder compressor 1, circulation is heated so as to form heating and air conditioner 100.
Heating and air conditioner 100 according to embodiments of the present invention, on the one hand by arranging the first cylinder 11 and the second cylinder
12, and so that the first cylinder 11 is connected with the first air entry 14 and the second air entry 15 with the second cylinder 12 respectively, and make the first gas
The span of the volume ratio of cylinder 11 and the second cylinder 12 is 1～20, so as to be conducive to improving the efficiency of duplex cylinder compressor 1
Than reducing the power consumption of duplex cylinder compressor 1；On the other hand by arranging gas-liquid separator 6, and include indoor heat exchanger component 3
First indoor heat exchanging part 31 and the second indoor heat exchanging part 32, make the of the first indoor heat exchanging part 31 and gas-liquid separator 6
Two interfaces 62 are connected, and so that the second indoor heat exchanging part 63 is connected with the 3rd interface 63 of gas-liquid separator 6, so as to when cold-warm type sky
When adjusting device 100 to freeze, the gaseous coolant that gas-liquid separator 6 can be easy to isolate and liquid refrigerants separately flow to interior and change
Hot device assembly 3, and independently carry out heat exchange with indoor environment in heat exchanger assembly 3 indoors, changes so as to be conducive to improving interior
The heat transfer effect of hot device assembly 3, optimizes the efficiency level of heating and air conditioner 100, good energy-conserving effect.
According to some embodiments of the present invention, with reference to shown in Fig. 1, commutation component 5 includes two cross valves, each cross valve
An exhaust valve port 51 is provided with, one of cross valve is provided with first the 54, first outdoor 52 and of connection valve port of indoor connection valve port
First air-breathing valve port 56, another cross valve is provided with second the 55, second outdoor connection valve mouth 53 and second of indoor connection valve mouth and inhales
Valve port while 57.Thus, the coolant that discharges from air vent 13 can flow to two exhaust valve ports 51, simple structure, reliability respectively.
Certainly, the invention is not restricted to this, in other embodiments, as shown in Fig. 2 commutation component 5 is seven port valves, knot
Structure is simple and reliable, and being provided with beneficial to reduces cost of seven port valves.
Further, commutation component 5 is when including two cross valves, two cross valves freeze in heating and air conditioner 100 or
Link when heating, consequently facilitating commutation function while two cross valves is realized, in order to freeze when heating and air conditioner 100
When, the exhaust valve port 51 of one of cross valve is connected valve port 52 with the first outdoor and connects and the first air-breathing valve port 56 and the first Room
Interior connection valve port 54 is connected, and the exhaust valve port 51 of another cross valve is connected and the second inlet valve with the second outdoor connection valve mouth 53
Mouth 57 is connected with the second indoor connection valve mouth 55, when heating and air conditioner 100 is heated, the exhaust valve port of one of cross valve
51 are connected with the first interior that valve port 54 is connected and the first air-breathing valve port 56 is outdoor with first is connected valve port 52 and connects, another four-way
The exhaust valve port 51 of valve is connected with the second indoor connection valve mouth 55, and the second air-breathing valve port 57 and the second outdoor connection valve mouth 53 are even
Logical.
In some embodiments of the invention, duplex cylinder compressor 1 also includes the first reservoir 16, and the first reservoir 16 is located at
Outside housing, the first reservoir 16 is connected with the first air entry 14 and the first air-breathing valve port 56 respectively, thus, can be easy to from first
The coolant that air-breathing valve port 56 flows out carries out gas-liquid separation, flows to the first cylinder 11 in order to gaseous coolant through the first air entry 14
And liquid refrigerants is stored in the first reservoir 16, so as to avoid liquid hammer of the liquid refrigerants to the first cylinder 11.
Further, duplex cylinder compressor 1 also includes the second reservoir 17, and the second reservoir 17 is located at outside housing, the second storage
Liquid device 17 is connected with the second air entry 15 and the second air-breathing valve port 57 respectively, thus, can be easy to flowing from the second air-breathing valve port 57
The coolant for going out carries out gas-liquid separation, and in order to gaseous coolant flows to the second cylinder 12 through the second air entry 15, liquid refrigerants is deposited
Storage so as to avoid liquid hammer of the liquid refrigerants to the second cylinder 12, is conducive to improving twin-tub pressure in the second reservoir 17 then
1 reliability of operation of contracting machine.
Alternatively, the volume of the second reservoir 17 can greater than, equal to or volume less than the first reservoir 16.
Preferably, the volume of the second reservoir 17 is less than the volume of the first reservoir 16.Specifically, due to the second cylinder
The volume of 12 to the first cylinders 11 is little, by causing the volume of the second reservoir 17 less than the volume of the first reservoir 16, not only
Can ensure to flow back to the coolant quantity of the first cylinder 11 and the second cylinder 12 respectively, and advantageously reduce cost.
In some embodiments of the invention, the first indoor heat exchanging part 31 and the second indoor heat exchanging part 32 are only for two
Vertical heat exchanger, thus, is conducive to improving the heat transfer effect of indoor heat exchanger component 3.Certainly, the invention is not restricted to this, at which
In its embodiment, the first indoor heat exchanging part 31 and the second indoor heat exchanging part 32 are two parts of same heat exchanger, thus
Simple and reliable, and advantageously reduce cost.It is understood that the first indoor heat exchanging part 31 and the second indoor heat exchanging part
In 32 casing for being located at same indoor set.
The aspects such as processing and manufacture in view of the second cylinder 12 and the first cylinder 11, it is preferable that the first cylinder 11 and
The span of the volume ratio of two cylinders 12 is 1～10.
Specifically, as Figure 1-Figure 2, heating and air conditioner 100 still further comprises first sensor A, the first sensing
Device A is located at air vent 13 temperature or pressure for detecting the coolant at air vent 13.Alternatively, first sensor A is
Pressure transducer or temperature sensor.
Specifically, heating and air conditioner 100 still further comprises second sensor B, and it is indoor that second sensor B is located at first
Heat exchanging part 31 or temperature or pressure in the second indoor heat exchanging part 32 for the corresponding coolant of detection.Alternatively,
Second sensor B is pressure transducer or temperature sensor.
Below with reference to Fig. 2, the structure of the air-conditioner 100 of one specific embodiment of the present invention is described in detail.
As shown in Fig. 2 the heating and air conditioner 100 of the present embodiment includes duplex cylinder compressor 1, commutation component 5, outdoor heat exchange
Device 2, gas-liquid separator 6 and indoor heat exchanger component 3.As shown in Fig. 2 commutation component 5 is seven port valves.
Duplex cylinder compressor 1 includes housing, the first cylinder 11 and the second cylinder 12.First cylinder 11 and the second cylinder 12 are respectively
It is located in housing.
As shown in Fig. 2 housing is provided with air vent 13, the first air entry 14 and the second air entry 15, the first cylinder 11
Air intake passage is connected with the first air entry 14, and the air intake passage of the second cylinder 12 is connected with the second air entry 15, thus, after heat exchange
Coolant can return to duplex cylinder compressor 1 from the first air entry 14 and the second air entry 15 respectively.
As shown in Fig. 2 commutation component 5 includes the outdoor connection valve mouth of the outdoor connection valve port 52, second of exhaust valve port 51, first
53rd, first indoor the 54, second interior of connection valve port connection valve mouth 55, the first air-breathing valve port 56 and the second air-breathing valve port 57.Aerofluxuss
Valve port 51 is connected with air vent 13, and the first air-breathing valve port 56 is connected with the first air entry 14, and the second air-breathing valve port 57 and second is inhaled
QI KOU 15 is connected, thus, simple and reliable for structure.
Specifically, as shown in Fig. 2 the first end of outdoor heat exchanger 2 is connected valve port 52 with the first outdoor and the second outdoor connects
Connect valve port 53 to be connected, thus, when heating and air conditioner 100 is freezed, coolant can be from the first outdoor connection valve port 52 and second Room
Outer connection valve port 53 is while flow to outdoor heat exchanger 2, and when heating and air conditioner 100 is heated, coolant can be from 2 points of outdoor heat exchanger
First outdoor connection valve port 52 and second outdoor connection valve mouth 53 are not flowed to.Second end of outdoor heat exchanger 2 is adjustable with flow degree
Restricting element 4 first end be connected, restricting element 4 can carry out reducing pressure by regulating flow to flowing through its coolant.
As shown in Fig. 2 gas-liquid separator 6 includes 61 to the 3rd interface 63 of first interface, wherein first interface 61 and throttling
Second end of element 4 is connected, and coolant can achieve the separation of gaseous coolant and liquid refrigerants in gas-liquid separator 6.Indoor heat exchange
Device assembly 3 includes the first indoor heat exchanging part 31 and the second indoor heat exchanging part 32, and the two ends of the first indoor heat exchanging part 31 are divided
The second interface 62 for not being connected valve port 54 and gas-liquid separator 6 with the first interior is connected, the two ends of the second indoor heat exchanging part 32
It is connected with the 3rd interface 63 of the second indoor connection valve mouth 55 and gas-liquid separator 6 respectively.Restricting element 4 is electric expansion valve.
First indoor heat exchanging part 31 and the second indoor heat exchanging part 32 are two independent heat exchangers.Two indoor heat exchange
Part is located in the casing of same indoor set.
Inventor adopts air-conditioner to do multigroup experiment to verify the first cylinder 11 and the second cylinder 12 in practical study
Volume ratio and duplex cylinder compressor 1 efficiency lifting than between relation.
| First cylinder and the second cylinder ratio | Efficiency lifts (%) |
| 2 | 10% |
| 20 | 7% |
When the span of the first cylinder 11 and the volume ratio of the second cylinder 12 is 1～20, the efficiency of whole machine is with now
Have technology compare have be obviously improved.
Preferably, the span of the volume ratio of the first cylinder 11 and the second cylinder 12 is 1～10.
The control method of heating and air conditioner according to embodiments of the present invention is described below in detail.
The flow degree of the restricting element of heating and air conditioner is adjustable, and the flow degree of certain restricting element can also be non-adjustable
's.
Specifically, when restricting element flow degree can timing, in refrigerating operaton according to the inspection to the first detection object
The flow degree of the adjustable restricting element of result adjustment flow degree is surveyed to setting flow degree；According to right to the second detection during heating operation
The testing result of elephant adjusts the flow degree of the adjustable restricting element of flow degree to setting flow degree；Wherein the first detection object includes
In outdoor environment temperature, the running frequency of duplex cylinder compressor, the pressure at expulsion of the delivery temperature of air vent and air vent at least
One.Second detection object includes outdoor environment temperature, the running frequency of duplex cylinder compressor, the delivery temperature of air vent and aerofluxuss
At least one of pressure at expulsion of mouth.For example, heating and air conditioner includes controller, and controller can be according to the first detection object
Testing result or the second detection object the testing result adjustment adjustable restricting element of flow degree flow degree to setting flow
Degree.
It is understood that the first detection object and the second detection object can be identicals, can also be certainly different
's.It should be noted that the first detection object is identical with the second detection object referring in refrigeration and heating operation, for adjusting
Parameter needed for restricting element is identical, and the first detection object is different with the second detection object to be referred in refrigeration and heating operation
When, differ for adjusting the parameter needed for restricting element.
In some embodiments of the invention, the first detection object and the second detection object are outdoor environment temperature T4,
When heating with heating operation, outdoor environment temperature presets multiple outdoor temperatures interval respectively, and each outdoor temperature is interval to be corresponded to not
With restricting element flow degree, the interval corresponding section of the outdoor temperature being located according to the actually detected outdoor environment temperature value that arrives
The flow degree of the flow angle value adjustment restricting element of fluid element.
Specifically, during refrigeration, the concrete condition of the flow degree of the interval corresponding restricting element of different outdoor temperatures is as follows
Table：
| T4 | Flow degree |
| 10≤T4 ＜ 20 | 100 |
| 20≤T4 ＜ 30 | 110 |
| 30≤T4 ＜ 40 | 120 |
| 40≤T4 ＜ 50 | 150 |
| 50≤T4 ＜ 60 | 180 |
When heating, the concrete condition such as following table of the flow degree of the interval corresponding restricting element of different outdoor temperatures：
| T4 | Flow degree |
| 10≤T4 ＜ 20 | 160 |
| 5≤T4 ＜ 10 | 180 |
| - 5≤T4 ＜ 5 | 200 |
| - 10≤T4 ＜ -5 | 250 |
| - 15≤T4 ＜ -10 | 300 |
In further embodiments, the first detection object and the second detection object are outdoor environment temperature T4 and running frequency
F, is calculated the setting flow degree of restricting element first according to outdoor environment temperature and running frequency, then according to setting flow
The flow degree of degree adjustment restricting element.
Specifically, during refrigeration, the flow degree LA_cool_1 and outdoor environment temperature T4 of restricting element and running frequency F it
Between relational expression be：LA_cool_1=a1·F+b1T4+c1, when the flow degree LA_cool_1 for calculating is more than the throttling unit of collection
When the actual flow of part is spent, the flow degree of restricting element is increased to calculated flow rate degree；Otherwise turn down.Wherein 0≤a1≤ 20,0
≤b1≤ 20, -50≤c1≤100.Control coefrficient a, b, c can be all 0, when one coefficient of any of which is zero, it was demonstrated that the coefficient
Corresponding parameter is no affected on the flow degree of restricting element.For example in refrigeration, outdoor environment temperature is detected for 35 DEG C, compression
Machine running frequency is 58Hz, sets a1=1, b1=1.6, c1=6.Heating and air conditioner is according to the frequency for collecting and T4 first
Value, the flow degree for calculating restricting element should be 120, adjust the flow degree of restricting element to 120.
When heating, the flow degree LA_heat_1 of restricting element and the relation between outdoor environment temperature T4 and running frequency F
Formula is：LA_heat_1=x1·F+y1T4+z1, when the flow degree LA_heat_1 for calculating is more than the reality of the restricting element of collection
When flow is spent, the flow degree of restricting element is increased to calculated flow rate degree；Otherwise turn down.Wherein, 0≤x1≤ 15,0≤y1≤
15, -50≤z1≤100；Control coefrficient x, y, z can be all 0.For example, when heating, outdoor environment temperature is detected for 7 DEG C, pressure
Contracting machine running frequency is 72Hz, sets x1=2.0, y1=3.0, z1=22.0；System is according to the frequency for collecting and T4 first
Value, the flow degree for calculating restricting element should be 187, adjust the flow degree of restricting element to 187.Maintain the stream of restricting element
After measuring 200s, compressor operating frequency and T4 value, or the adjustment according to user to air-conditioning, detection compressor fortune is detected again
Line frequency and T4 value, readjust to restricting element.
In other specific examples of the present invention, the first detection object and the second detection object are outdoor environment temperature
T4, running frequency F and pressure at expulsion；Or first detection object and the second detection object be outdoor environment temperature T4, operation frequency
Rate F and delivery temperature, are calculated setting pressure at expulsion or the row of setting according to outdoor environment temperature T4 and running frequency F first
Temperature degree, then adjusts the flow degree of restricting element so that detection according to the actually detected pressure at expulsion for arriving or delivery temperature
To pressure at expulsion or delivery temperature reach setting pressure at expulsion or set delivery temperature.Thus, simple and reliable.
In other embodiments of the present invention, the first detection object is that outdoor environment temperature T4, the second detection object is
Outdoor environment temperature T4, running frequency F and pressure at expulsion or the second detection object are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4, running frequency F are outdoor environment temperature T4,
And delivery temperature.In refrigerating operaton, outdoor environment temperature presets multiple outdoor temperatures interval respectively, each outdoor temperature interval
The flow degree of the different restricting element of correspondence, right according to the outdoor temperature interval at the actually detected outdoor environment temperature value place that arrives
The flow degree of the flow angle value adjustment restricting element of the restricting element that answers.In heating operation, first according to outdoor environment temperature
T4 and running frequency F are calculated setting pressure at expulsion or set delivery temperature, then according to the actually detected exhaust pressure for arriving
The flow degree of power or delivery temperature adjustment restricting element is so that the pressure at expulsion for detecting or delivery temperature reach setting
Pressure at expulsion or setting delivery temperature.Thus, simple and reliable.
Further, after the flow degree of restricting element meets condition, can be after the operation n second, detection first again is examined
Object or the second detection object is surveyed, and the flow degree of restricting element is then adjusted according to testing result, is so repeated.Certainly repeat bar
Part not limited to this, for example, can detect that the first detection object or the second detection are right after the operational order for receiving user again
As then adjusting the flow degree of restricting element according to testing result.
When the flow degree of restricting element is fixed, according to the compressor operation parameters for detecting and/or outdoor environment temperature
The running frequency of adjustment duplex cylinder compressor includes running current, pressure at expulsion, row to condition, wherein compressor operation parameters are met
At least one of temperature degree；In other words, according to the running frequency of the testing result adjustment duplex cylinder compressor to detection object, its
Middle detection object includes outdoor environment temperature, the delivery temperature of air vent, the pressure at expulsion of air vent, the operation of duplex cylinder compressor
At least one of electric current.Herein it should be noted that the flow degree fixation of restricting element refers to the flow degree of restricting element not
Adjustable.
When the running frequency of duplex cylinder compressor adjust to meet condition after, can operation the n second after detect again compressor
Operational factor and/or outdoor environment temperature, then according to the running frequency of the testing result adjustment compressor for detecting again, such as
This repeats.Certainly repeat condition not limited to this, for example, can detect compressor fortune after the operational order for receiving user again
Line parameter and/or outdoor environment temperature, then according to the running frequency of the testing result adjustment compressor for detecting again.Change speech
It, when freezing or heat, after the running frequency of compressor meets condition, in the operation n second or can receive user
Operation signal after, detection compressor operation parameters and/or outdoor environment temperature again, then according to testing result adjustment operation
Frequency, so repeats.
In the specific example of the present invention, during heating and air conditioner operation, if detect user's shutdown referred to
Order or indoor environment temperature reach design temperature, and compressor is out of service.
The control method of air-conditioner according to embodiments of the present invention, by according to testing result adjustment pressure in running
The running frequency of contracting machine, such that it is able to let the system operate in suitable parameter area, improves air-conditioner reliability of operation.
In some embodiments of the invention, multiple different delivery temperature intervals, multiple delivery temperature areas are preset first
Between corresponding running frequency regulating command difference, then detection delivery temperature the row that is located according to the delivery temperature that detects
The corresponding regulating command of gas temperature range adjusts running frequency.Wherein regulating command can include frequency reducing, raising frequency, keep frequency,
The instructions such as shutdown, releasing frequency limitation.So as to adjust the running frequency of compressor by detecting delivery temperature, can be directly anti-
Answer the running status of system, it is ensured that system operation improves air-conditioner reliability of operation in suitable parameter area, further.
Need to illustrate, the running frequency that releasing frequency limitation refers to compressor is unrestricted, need not adjust compressor
Running frequency.For example air-conditioner start refrigerating operaton, detects delivery temperature TP in running, sets following regulation and refers to
Order：115 DEG C≤TP, shut down；110℃≤TP<115 DEG C, it is downconverted to TP<110℃；105℃≤TP<110 DEG C, frequency keeps；TP<
105 DEG C, release frequency limitation.Then corresponding regulating command is executed according to actually detected delivery temperature TP for arriving, is adjusting
Detect TP after becoming again, terminate if meeting and adjusting to judge, after the operation n second, delivery temperature TP is detected again, repeats to sentence
Disconnected.While operation n second, if detecting user's shutdown command or design temperature reaches, terminate operation.
In some embodiments of the invention, default multiple outdoor temperatures are interval, heat stoppage protection electric current and refrigeration is stopped
Machine protective current, the different limit frequency protective current of the interval correspondence of multiple outdoor temperatures.Outdoor environment temperature, Ran Hougen are detected first
The outdoor temperature interval being located according to the outdoor environment temperature that detects obtains corresponding limit frequency protective current, adjustment running frequency with
Make actually detected to running current reach corresponding limit frequency protective current, the running current for wherein detecting when cooling is more than
Then directly shut down during refrigeration stoppage protection electric current, the running current for detecting when heating is more than when heating stoppage protection electric current then
Directly shut down.
Specifically, during refrigeration, multiple outdoor temperatures are interval can institute as follows with the corresponding corresponding relation for limiting frequency protective current
Show：As 50.5 DEG C of T4 ＞, limit frequency protective current be；As 45.5 DEG C of 49.5 DEG C >=T4 ＞, limit frequency protective current be；
As 41 DEG C of 44.5 DEG C >=T4 ＞, limit frequency protective current be；As 33 DEG C of 40 DEG C >=T4 ＞, limit frequency protective current be；When
32 >=T4 DEG C, limit frequency protective current is CL1.Wherein CL5, CL4, CL3, CL2, CL1 and refrigeration stoppage protection electric current concrete number
Value can be specifically limited according to practical situation, and here is not limited.
The outdoor environment temperature T4 for for example detecting when refrigerating operaton is located outside 33 DEG C of 40 DEG C >=T4 of temperature range ＞
When interior, then it represents that running current does not allow more than limit frequency protective current CL2, if it does, running current will be downconverted to less than limit
Frequency protective current CL2.
When heating, the interval corresponding relation with corresponding limit frequency protective current of multiple outdoor temperatures can be as follows：Work as T4
During 15 DEG C of ＞, limit frequency protective current be；When 14 DEG C of ＞ T4 >=10 DEG C, limit frequency protective current is HL4；When 9 DEG C of ＞ T4 >=6
DEG C when, limit frequency protective current be；When 5 DEG C of ＞ T4 >=-19 DEG C, it is HL2 to limit frequency protective current；As -20 DEG C of ＞ T4, limit frequency is protected
Shield electric current is HL1.Wherein HL5, HL4, HL3, HL2, HL1 and heat the concrete numerical value of stoppage protection electric current can be according to actual feelings
Condition is specifically limited, and here is not limited.
For example when the outdoor environment temperature T4 for detecting when heating operation is located outside 9 DEG C of ＞ T4 >=6 DEG C of temperature range,
Then represent that running current does not allow more than limit frequency protective current HL3, if it does, running current will be downconverted to protecting less than limit frequency
Electric current HL3.
In some embodiments of the invention, multiple outdoor temperatures interval can be preset, and multiple outdoor temperatures are interval corresponding
Different setting running frequencies, transports according to corresponding setting the in outdoor temperature interval that the actually detected outdoor environment temperature for arriving is located
The running frequency of line frequency adjustment compressor.
In some embodiments of the invention, multiple different pressure at expulsion intervals, multiple pressure at expulsion areas are preset first
Between corresponding running frequency regulating command difference, then detection pressure at expulsion the row that is located according to the pressure at expulsion that detects
The interval corresponding regulating command of atmospheric pressure adjusts running frequency.Wherein regulating command can include frequency reducing, raising frequency, keep frequency,
The instructions such as shutdown, releasing frequency limitation.So as to adjust the running frequency of compressor by detecting pressure at expulsion, can be directly anti-
Answer the running status of system, it is ensured that system operation improves air-conditioner reliability of operation in suitable parameter area, further.
The control method of heating and air conditioner according to embodiments of the present invention, is conducive to improving the energy of heating and air conditioner
Effect.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for describing with reference to the embodiment or example
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
Combined in one or more embodiments or example in an appropriate manner.Additionally, in the case of not conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiments or example can be tied by art personnel
Close and combine.
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, changes, replacing and modification.
Claims (11)
1. a kind of heating and air conditioner, it is characterised in that include：
Duplex cylinder compressor, the duplex cylinder compressor includes housing, the first cylinder and the second cylinder, and the housing is provided with aerofluxuss
Mouthful, the first air entry and the second air entry, first cylinder and second cylinder be respectively provided in the housing, described the
The air intake passage of one cylinder is connected with first air entry, and the air intake passage of second cylinder is with second air entry even
Logical, the span of the volume ratio of first cylinder and second cylinder is 1～20；
Commutation component, the commutation component include exhaust valve port, the first outdoor connection valve port, the second outdoor connection valve mouth, first
Indoor connection valve port, the second indoor connection valve mouth, the first air-breathing valve port and the second air-breathing valve port, the exhaust valve port and the row
QI KOU is connected, and the first air-breathing valve port is connected with first air entry, the second air-breathing valve port and second air-breathing
Mouth is connected；
Outdoor heat exchanger, the first end of the outdoor heat exchanger is connected valve port and the second outdoor connection with the described first outdoor
Valve port is connected, and the second end of the outdoor heat exchanger is connected with the first end of restricting element；
Gas-liquid separator, the gas-liquid separator includes first interface to the 3rd interface, the first interface and the throttling unit
Second end of part is connected；
Indoor heat exchanger component, the indoor heat exchanger component includes the first indoor heat exchanging part and the second indoor heat exchanging part,
The two ends of the described first indoor heat exchanging part are connected the second of valve port and the gas-liquid separator with the described first interior respectively and connect
Mouthful be connected, the two ends of the second indoor heat exchanging part respectively with the described second indoor connection valve mouth and the gas-liquid separator
3rd interface is connected.
2. heating and air conditioner according to claim 1, it is characterised in that the commutation component includes two cross valves,
Each described cross valve is provided with an exhaust valve port, and one of cross valve is provided with the described first indoor connection valve port, institute
The first outdoor connection valve port and the first air-breathing valve port is stated, another described cross valve is provided with the described second indoor connection valve
Mouth, the described second outdoor connection valve mouth and the second air-breathing valve port.
3. heating and air conditioner according to claim 2, it is characterised in that described two cross valves are in cold-warm type sky
Adjust device refrigeration or link when heating.
4. heating and air conditioner according to claim 1, it is characterised in that the commutation component be.
5. heating and air conditioner according to claim 1, it is characterised in that the duplex cylinder compressor also includes the first liquid storage
Device, first reservoir is located at outside the housing, first reservoir respectively with first air entry and described first
Air-breathing valve port is connected.
6. heating and air conditioner according to claim 5, it is characterised in that the duplex cylinder compressor also includes the second liquid storage
Device, second reservoir is located at outside the housing, second reservoir respectively with second air entry and described second
Air-breathing valve port is connected.
7. heating and air conditioner according to claim 6, it is characterised in that the volume of second reservoir is less than described
The volume of the first reservoir.
8. heating and air conditioner according to claim 1, it is characterised in that the described first indoor heat exchanging part and described the
Two indoor heat exchanging part are two independent heat exchangers, or the described first indoor heat exchanging part and the second indoor heat exchanging part
It is divided into two parts of same heat exchanger.
9. a kind of control method of the heating and air conditioner according to any one of claim 1-8, it is characterised in that described
The flow degree of restricting element is adjustable, in refrigerating operaton according to adjustable to the testing result of the first detection object adjustment flow degree
The flow degree of restricting element is to setting flow degree；According to the testing result adjustment flow degree to the second detection object during heating operation
The flow degree of adjustable restricting element is to setting flow degree；
Wherein first detection object includes the aerofluxuss temperature of outdoor environment temperature, the running frequency of duplex cylinder compressor, air vent
At least one of pressure at expulsion of degree and air vent；
Second detection object include outdoor environment temperature, the running frequency of duplex cylinder compressor, the delivery temperature of air vent and
At least one of pressure at expulsion of air vent.
10. the control method of heating and air conditioner according to claim 9, it is characterised in that first detection object
Identical with second detection object.
A kind of 11. control methods of the heating and air conditioner according to any one of claim 1-8, it is characterised in that institute
The flow degree for stating restricting element is fixed, described double according to the compressor operation parameters for detecting and/or outdoor environment temperature adjustment
The running frequency of cylinder compressor is to condition is met, and wherein the compressor operation parameters include running current, pressure at expulsion, aerofluxuss
At least one of temperature.
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| PCT/CN2016/102941 WO2018018767A1 (en) | 2016-07-29 | 2016-10-21 | Cooling and heating air conditioner, and control method |
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| CN111121193A (en) * | 2018-10-31 | 2020-05-08 | 广东美芝精密制造有限公司 | Air conditioner |
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| CN106440132A (en) * | 2016-07-29 | 2017-02-22 | 广东美的制冷设备有限公司 | Cooling-and-heating-type air conditioner and control method thereof |
| CN113970126B (en) * | 2020-07-07 | 2022-11-11 | 广东美的制冷设备有限公司 | Air conditioner, control method of air conditioner and storage medium |
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