CN104848578B - The control method of air conditioner and air conditioner - Google Patents

The control method of air conditioner and air conditioner Download PDF

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Publication number
CN104848578B
CN104848578B CN201510211998.4A CN201510211998A CN104848578B CN 104848578 B CN104848578 B CN 104848578B CN 201510211998 A CN201510211998 A CN 201510211998A CN 104848578 B CN104848578 B CN 104848578B
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China
Prior art keywords
heat exchanger
air conditioner
interface
temperature
outdoor heat
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CN201510211998.4A
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Chinese (zh)
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CN104848578A (en
Inventor
韩宇
李金波
陈明瑜
宋超锋
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea Refrigeration Equipment Co Ltd
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Priority to CN201510211998.4A priority Critical patent/CN104848578B/en
Publication of CN104848578A publication Critical patent/CN104848578A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00Compression machines, plants or systems, with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02Defrosting cycles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02742Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two four-way valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00Control issues
    • F25B2600/25Control of valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21Temperatures
    • F25B2700/2103Temperatures near a heat exchanger
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21Temperatures
    • F25B2700/2106Temperatures of fresh outdoor air

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses the control method of air conditioner and air conditioner.Air conditioner includes:Compressor, compressor have exhaust outlet and gas returning port;First commutation component, the first commutation component have the first valve port to the 4th valve port, and the first valve port connects with one of in the second valve port and the 3rd valve port, and the 4th valve port connects with another in the second valve port and the 3rd valve port;Indoor heat exchanger;Second commutation component, second commutation component has first interface to the 4th interface, first interface connects with one of in second interface and the 3rd interface, 4th interface connects with another in second interface and the 3rd interface, the first throttle element and the first controller being connected in parallel are connected between first interface and the second end of indoor heat exchanger, the 4th interface is connected with the second valve port;First outdoor heat exchanger and the second outdoor heat exchanger.The air conditioner of the present invention, comfortableness of user when using air conditioner heat-production function can be improved to a certain extent.

Description

The control method of air conditioner and air conditioner
Technical field
The present invention relates to art of refrigeration units, more particularly, to the control method of a kind of air conditioner and air conditioner.
Background technology
When winter uses air conditioner heat-production, the phenomenon of frosting occurs due to low temperature in the air-conditioner outdoor unit of air conditioner.It is existing Pointed out in technology, the defrosting to air-conditioner outdoor unit is typically after air conditioner runs a period of time, by the heating mode of air conditioner Switch to refrigeration mode, indoor heat exchanger is as the heat in evaporator absorption chamber, and outdoor heat exchanger is as condenser with to sky Outdoor unit radiating is adjusted, so as to realize defrosting, however, the Defrost technology of heat has had a strong impact on that user's is comfortable in this absorption chamber Property.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention carries Go out a kind of air conditioner, the air conditioner can improve the comfortableness of user.
The present invention also proposes a kind of control method of air conditioner, for controlling above-mentioned air conditioner.
According to the air conditioner of the present invention, including:Compressor, the compressor have exhaust outlet and gas returning port;First commutation Component, the first commutation component have the first valve port to the 4th valve port, first valve port and the second valve port and the 3rd valve port In one of connection, the 4th valve port connects with another in second valve port and the 3rd valve port, described First valve port is connected with the exhaust outlet, and the 4th valve port is connected with the gas returning port;Indoor heat exchanger, the indoor heat exchange The first end of device is connected with the 3rd valve port;Second commutation component, the second commutation component have first interface to the 4th Interface, the first interface connect with one of in second interface and the 3rd interface, the 4th interface and described second Interface connects with another in the 3rd interface, is connected between the first interface and the second end of the indoor heat exchanger There are the first throttle element and the first controller being connected in parallel, the 4th interface is connected with second valve port;First is outdoor Heat exchanger and the second outdoor heat exchanger, the first end of first outdoor heat exchanger are connected with the 3rd interface, and described second The first end of outdoor heat exchanger is connected with the second interface, outside the second end of first outdoor heat exchanger and the second Room The second restricting element and second controller being connected in parallel are connected between second end of heat exchanger.
According to the air conditioner of the present invention, by setting the first outdoor heat exchanger and the second outdoor heat exchange in air-conditioner outdoor unit Device, and the second restricting element and second controller are connected in parallel between the first outdoor heat exchanger and the second outdoor heat exchanger, together When in coolant loop set second commutation component, indoor heat exchanger can be made in the first outdoor heat exchanger or the second outdoor heat exchange Continue during device defrost to indoor heating, it is comfortable when using air conditioner heat-production function that this improves user to a certain extent Property.
According to some embodiments of the present invention, the first commutation component is four-way valve.
According to some embodiments of the present invention, the second commutation component is four-way valve.
In some embodiments of the invention, first controller is configured to be in normally off.
According to some embodiments of the present invention, the second controller is configured to be in normally open.
In some embodiments of the invention, the first throttle element is capillary or electric expansion valve, described second Restricting element is capillary or electric expansion valve.
According to some embodiments of the present invention, first outdoor heat exchanger and second outdoor heat exchanger are two only Vertical heat exchange element, or two that first outdoor heat exchanger and second outdoor heat exchanger are a heat exchange element Point.
According to the control method of the air conditioner of the present invention, the air conditioner is above-mentioned air conditioner, and the control method is such as Under:
When following either condition meets, the air conditioner is controlled to enter the first self-circulating defrosting pattern, described first Self-circulating defrosting pattern, second controller are closed, the first outdoor heat exchanger are defrosted:
Condition one, after compressor accumulative operation t1 minutes, the first temperature T1 is less than first predetermined value T11, and first is warm Degree T1 and the first predetermined difference value BT1 sums are less than or equal to T10, and the 3rd temperature T3 > third predetermined value T33, wherein the first temperature The temperature that T1 is the first outdoor heat exchanger is spent, second temperature T2 is the temperature of the second outdoor heat exchanger, and the 3rd temperature T3 is air-conditioning Environment temperature in device outdoor unit, the T10 are that air conditioner heat-production runs and arrives m2 after compressor start continuous service m1 minutes The minimum value of T1 in minute;
Condition two, after compressor accumulative operation t2 minutes, the first temperature T1 is less than the 4th predetermined value T12, the 3rd temperature The predetermined value T34 of T3 > the 5th, and continue m3 minutes;
Condition three, after compressor accumulative operation t3 minutes, the first temperature T1 is less than the 6th predetermined value T13, the 3rd temperature The predetermined value T35 of T3 > the 7th;
When following either condition meets, the air conditioner is controlled to enter the second self-circulating defrosting pattern, described second Self-circulating defrosting pattern, second controller are closed, the second outdoor heat exchanger are defrosted:
Condition four, after compressor accumulative operation t4 minutes, second temperature T2 is less than the first setting value T21, and second is warm The settings of degree T2 and second difference BT2 sums are less than or equal to T20, and the setting value T331 of the 3rd temperature T3 > the 3rd, wherein described T20 is that air conditioner heat-production is run and after compressor start continuous service m1 minutes to the minimum value of the T2 in m2 minutes;
Condition five, after compressor accumulative operation t5 minutes, second temperature T2 is less than the 4th setting value T22, the 3rd temperature The setting value T341 of T3 > the 5th, and continue m31 minutes;
Condition six, after compressor accumulative operation t6 minutes, second temperature T2 is less than the 6th setting value T23, the 3rd temperature The setting value T351 of T3 > the 7th;
Wherein when meeting to enter the first self-circulating defrosting pattern and the second self-circulating defrosting pattern simultaneously, the is initially entered One self-circulating defrosting pattern, after enter back into the second self-circulating defrosting pattern.
The first self-circulating defrosting pattern is run in air conditioner or during the second self-circulating defrosting pattern, when detecting that satisfaction exits During condition, defrost is exited.
According to the control method of the air conditioner of the present invention, during the defrost of air conditioner, indoor heat exchanger can be held Continue to indoor radiating, so as to ensure that the lasting heating of indoor set during defrost, this improves user and existed to a certain extent Using comfortableness during air conditioner heat-production function, while by detecting the temperature of the first outdoor heat exchanger and the second outdoor heat exchanger Degree, and by it compared with predetermined value to determine whether to be defrosted, can be defrosted according to actual conditions, avoid air-conditioning Device is defrosted in frostless situation and wastes energy, realizes the purpose of frost defrosting.
According to some embodiments of the present invention, in the first self-circulating defrosting pattern, the exit criteria is:Detect T1 Higher than the first set temperature value, detect T1 higher than the second set temperature value and continue first scheduled time or detection to described The time that first outdoor heat exchanger is defrosted is more than the first setting time, wherein first set temperature value is more than described the Two set temperature values;When being defrosted to second outdoor heat exchanger, the exit criteria is:Detect T2 higher than the 3rd setting Temperature value, T2 is detected higher than the 4th set temperature value and continues second scheduled time or detection to second outdoor heat exchange The time that device is defrosted is more than the second setting time, wherein the 3rd set temperature value is more than the 4th design temperature Value.
Brief description of the drawings
Fig. 1 is that the air conditioner according to embodiments of the present invention refrigerant in kind of refrigeration cycle flows to schematic diagram;
Fig. 2 is that air conditioner according to embodiments of the present invention flows to schematic diagram in the refrigerant of heating circulation;
Refrigerant when Fig. 3 is the first outdoor heat exchanger defrosting of air conditioner according to embodiments of the present invention flows to schematic diagram;
Refrigerant when Fig. 4 is the second outdoor heat exchanger defrosting of air conditioner according to embodiments of the present invention flows to schematic diagram;
Control flow schematic diagram when Fig. 5 is the first outdoor heat exchanger defrosting of air conditioner according to embodiments of the present invention;
Control flow schematic diagram when Fig. 6 is the second outdoor heat exchanger defrosting of air conditioner according to embodiments of the present invention.
Reference:
Air conditioner 100;
Compressor 1;Exhaust outlet A;Gas returning port B;
First commutation component 2;First valve port C;Second valve port D;3rd valve port E;4th valve port F;
Second commutation component 3;First interface G;Second interface H;3rd interface I;4th interface J;
Indoor heat exchanger 4;
First throttle element 5;
First controller 6;
First outdoor heat exchanger 7;
Second outdoor heat exchanger 8;
Second restricting element 9;
Second controller 10.
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 accompanying drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally;Can be that machinery connects Connect or electrically connect or can communicate each other;Can be joined directly together, can also be indirectly connected by intermediary, can be with It is connection or the interaction relationship of two elements of two element internals, is limited unless otherwise clear and definite.For this area For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
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 directly contact, 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 and is less than second feature.
Below with reference to the accompanying drawings air conditioner 100 according to embodiments of the present invention is described, can be used for adjusting indoor temperature.
As Figure 1-Figure 4, air conditioner 100 according to embodiments of the present invention can include the commutation component of compressor 1, first 2nd, the second commutation component 3, indoor heat exchanger 4, the first outdoor heat exchanger 7 and the second outdoor heat exchanger 8.
Specifically, compressor 1 has exhaust outlet A and gas returning port B, and refrigerant is entered inside compressor 1 from gas returning port B, warp Compressor 1 forms the refrigerant of HTHP after compressing, discharged from exhaust outlet A.
First commutation component 2 has the first valve port C to the 4th valve port F, wherein, the first valve port C and the second valve port D and the 3rd One of connection in valve port E, the 4th valve port F connect with another in the second valve port D and the 3rd valve port E, in other words, when When first valve port C connects with the second valve port D, the 4th valve port F connects with the 3rd valve port E, when the first valve port C and the 3rd valve port E connects When logical, the 4th valve port F connects with the second valve port D.In addition, the first valve port C is connected with exhaust outlet A, the 4th valve port F and gas returning port B It is connected.
Preferably, the first commutation component 2 is four-way valve, when the first commutation component 2 powers off, the first valve port C and the second valve Mouth D connections, the 4th valve port F connect with the 3rd valve port E, and when the first commutation component 2 is powered, the first valve port C and the 3rd valve port E connect Logical, the 4th valve port F connects with the second valve port D.But it is understood that the first commutation component 2 can be formed as other elements, As long as there is the first valve port C to the 4th valve port F and commutation can be realized.
Because the first valve port C of the first commutation component 2 can be with one of them in the second valve port D and the 3rd valve port E even Connecing to realize commutation connection, the 4th valve port F is connected with another in the second valve port D and the 3rd valve port E to realize commutation connection, This allows air conditioner 100 to be changed between refrigeration mode and heating mode, it is achieved thereby that the refrigerating function of air conditioner 100 And heat-production functions.
The first end of indoor heat exchanger 4 is connected with the 3rd valve port E, and indoor heat exchanger 4 can be exchanged heat with indoor environment to adjust Save indoor temperature.
Second commutation component 3 has first interface G to the 4th interface J, wherein, first interface G and second interface H and the 3rd One of connection in interface I, the 4th interface J connect with another in second interface H and the 3rd interface I, in other words, when When first interface G connects with second interface H, the 4th interface J connects with the 3rd interface I, when first interface G and the 3rd interface I connects When logical, the 4th interface J connects with second interface H.
The first throttle element 5 and first being connected in parallel is connected between first interface G and the second end of indoor heat exchanger 4 Controller 6, the 4th interface J are connected with the second valve port D, and first throttle element 5 can be depressured to the coolant throttle in refrigerant flow, First controller 6 can be used for the break-make for controlling refrigerant flow, for example, when the first controller 6 is opened, first interface G and room Refrigerant between second end of interior heat exchanger 4 is by the first controller 6, without by first throttle element 5, when the first controller During 6 closing, the refrigerant between first interface G and the second end of indoor heat exchanger 4 is then by first throttle element 5, without passing through First controller 6.
Preferably, the second commutation component 3 is four-way valve, and when the second commutation component 3 powers off, first interface G connects with second Mouth H connections, the 4th interface J connect with the 3rd interface I, and when the second commutation component 3 is powered, first interface G and the 3rd interface I connects Logical, the 4th interface J connects with second interface H.But it is understood that the second commutation component 3 can be formed as other elements, As long as there is the first valve port C to the 4th valve port F and commutation can be realized.
The first end of first outdoor heat exchanger 7 is connected with the 3rd interface I, the first end and second of the second outdoor heat exchanger 8 Interface H is connected, and is connected with and is connected in parallel between the second end of the second end of the first outdoor heat exchanger 7 and the second outdoor heat exchanger 8 The second restricting element 9 and second controller 10, second controller 10 can be used for control refrigerant flow in refrigerant break-make, second Restricting element 9 can be used for being depressured the coolant throttle in refrigerant flow.It is understood that when second controller 10 is opened, Refrigerant between second end of the first outdoor heat exchanger 7 and the second end of the second outdoor heat exchanger 8 flow through second controller 10 with The conducting of refrigerant is realized, without passing through the second restricting element 9, when second controller 10 is closed, the of the first outdoor heat exchanger 7 Refrigerant between two ends and the second end of the second outdoor heat exchanger 8 by the second restricting element 9 with reducing pressure by regulating flow, and without the Two controllers 10, thus, by being connected in the restricting element 9 of second controller 10 and second in parallel first outdoor heat exchanger 7 , can be in order to which air conditioner 100 be respectively to the He of the first outdoor heat exchanger 7 between second end and the second end of the second outdoor heat exchanger 8 Second outdoor heat exchanger 8 is defrosted.
Air conditioner 100 in the embodiment of the present invention is defrosting to the first outdoor heat exchanger 7 and the second outdoor heat exchanger 8 respectively When, indoor apparatus of air conditioner continues to indoor radiating to adjust indoor temperature, while indoor auxiliary heating device can also be opened, to enter The indoor heating effect of one step increase, because indoor auxiliary heating device is prior art, herein just without being described in detail.When So it is understood that in defrosting, if being heated without indoor auxiliary heating device to indoor environment, can also be closed Close.In the following description, auxiliary heating device is described exemplified by opening in room when to defrost.
For example, as shown in figure 1, when air conditioner 100 is in refrigeration mode, the first valve port C of the first commutation component 2 and the Two valve port D are connected, and the 4th valve port F connects with the 3rd valve port E, and the first interface G of the second commutation component 3 connects with second interface H, 4th interface J and the 3rd interface I connects, and the first controller 6 is closed, and second controller 10 is in opening, through pressure The refrigerant for the HTHP that contracting machine 1 is discharged commutates by the first valve port C and the second valve port D of the first commutation component 2 by second 4th interface J of component 3 and the 3rd interface I, the first outdoor heat exchanger 7 and the second outdoor heat exchanger 8 are flowed into, and it is outdoor first Energy exchange is carried out with external environment in the outdoor heat exchanger 8 of heat exchanger 7 and second, subsequent refrigerant flows from the second outdoor heat exchanger 8 Go out, by the second interface H and first interface G of the second commutation component 3, first throttle element 5 is flowed to, through first throttle element 5 The refrigerant of low-temp low-pressure is formed after reducing pressure by regulating flow, flows into indoor heat exchanger 4, indoors in heat exchanger 4 evaporation endothermic to reduce room Interior temperature, the refrigerant after heat exchange pass through the 3rd valve port E and the 4th valve port F of the first commutation component 2, and pass through returning for compressor 1 Gas port B enters compressor 1, reciprocal with this so as to form kind of refrigeration cycle.
Certainly, it will be understood by those skilled in the art that, when air conditioner 100 freezes or second The first interface G of commutation component 3 connects with the 3rd interface I, and the 4th interface J connects with second interface H, thus, from the first commutation The refrigerant of the second valve port D outflows of component 2 flows directly into the 4th interface J of the second commutation component 3, is then flowed from second interface H Go out to the second outdoor heat exchanger 8 and the first outdoor heat exchanger 7, then flow out to the 3rd interface I from the first outdoor heat exchanger 7, connect From first interface G and flow to first throttle element 5.
As shown in Fig. 2 when air conditioner 100 is in heating mode, the first valve port C and the 3rd valve of the first commutation component 2 Mouth E connections, the 4th valve port F connect with the second valve port D, and the first interface G of the second commutation component 3 connects with second interface H, and the 4th Interface J is connected with the 3rd interface I, and the first controller 6 is closed, and second controller 10 is opened, the exhaust outlet A discharges through compressor 1 The refrigerant of HTHP flow to indoor heat exchanger 4 by the first valve port C and the 3rd valve port E, condensation dissipates in heat exchanger 4 indoors Heat, then into first throttle element 5, low temperature is formed after the reducing pressure by regulating flow of first throttle element 5 to be heated to indoor environment The refrigerant of low pressure, by first interface G and second interface H, enter in the second outdoor heat exchanger 8 and the first outdoor heat exchanger 7 Evaporation endothermic, then flowed out from the first outdoor heat exchanger 7, by the 3rd interface I and the 4th interface J, flow to the second valve port D and Four valve port F, and the gas returning port B through compressor 1 returns to compressor 1, it is reciprocal with this, realize the heating circulation of air conditioner 100.
Certainly, it will be understood by those skilled in the art that, when air conditioner 100 heats or second changes Connected to the first interface G of component 3 with the 3rd interface I, the 4th interface J connects with second interface H, thus, from indoor heat exchanger 4 The refrigerant of outflow, directly by first interface G and the 3rd interface I, enters after the reducing pressure by regulating flow of first throttle element 5 Evaporation endothermic in one outdoor heat exchanger 7 and the second outdoor heat exchanger 8, then flows out from the second outdoor heat exchanger 8, is connect by second Mouth H and the 4th interface J, flows to the second valve port D and the 4th valve port F, so as to return to compressor 1.
As shown in figure 3, when air conditioner 100 is in the first self-circulating defrosting pattern, during to the first 7 defrost of outdoor heat exchanger, First valve port C of the first commutation component 2 connects with the 3rd valve port E, and the 4th valve port F connects with the second valve port D, the second commutation component 3 first interface G is connected with the 3rd interface I, and the 4th interface J connects with second interface H, and the first controller 6 is opened, the second control Device 10 is closed, and indoor auxiliary heating device is opened, and the refrigerant of the HTHP of the now exhaust outlet A of compressor 1 discharges passes through first Valve port C and the 3rd valve port E, the condensation radiating of indoor heat exchanger 4 is flowed into improve indoor temperature, subsequently forms the liquid of HTHP Refrigerant, then by the first controller 6, first interface G and the 3rd interface I are flowed through, flow to the condensation radiating of the first outdoor heat exchanger 7 To be defrosted to the first outdoor heat exchanger 7, after after the reducing pressure by regulating flow of the second restricting element 9, the second outdoor heat exchange is entered Evaporation endothermic in device 8, then by second interface H and the 4th interface J, the second valve port D and the 4th valve port F is flowed through, and pass through pressure The gas returning port B of contracting machine 1 returns to compressor 1.During the defrost to the first outdoor heat exchanger 7, indoor heat exchanger 4 continue to Indoor heating, along with the unlatching of indoor auxiliary heating device further increases heating effect, so as to drastically increase use The comfortableness at family.
As shown in figure 4, when air conditioner 100 is in the second self-circulating defrosting pattern, during to the second 8 defrost of outdoor heat exchanger, First valve port C of the first commutation component 2 connects with the 3rd valve port E, and the 4th valve port F connects with the second valve port D, the second commutation component 3 first interface G is connected with second interface H, and the 4th interface J connects with the 3rd interface I, and the first controller 6 is opened, the second control Device 10 is closed, and indoor auxiliary heating device is opened, and now the refrigerant of the HTHP of the exhaust outlet A discharges of compressor 1 is by the One valve port C and the 3rd valve port E, the condensation radiating of indoor heat exchanger 4 is flowed into improve indoor temperature, subsequently forms the liquid of HTHP State refrigerant, then by the first controller 6, first interface G and second interface H are flowed through, flow to the condensation of the second outdoor heat exchanger 8 and dissipate Heat to the second outdoor heat exchanger 8 to defrost, and afterwards after the reducing pressure by regulating flow of the second restricting element 9, it is outdoor to enter first Evaporation endothermic in heat exchanger 7, then by the 3rd interface I and the 4th interface J, the second valve port D and the 4th valve port F is flowed through, through pressure The gas returning port B of contracting machine 1 returns to compressor 1, and the defrost to the second outdoor heat exchanger 8 is back and forth realized with this.Outside to second Room During the defrost of heat exchanger 8, indoor heat exchanger 4 continues to indoor heating, along with the unlatching of indoor auxiliary heating device is entered One step adds heating effect, so as to drastically increase the comfortableness of user.
Air conditioner 100 according to embodiments of the present invention, by setting the first outdoor heat exchanger 7 and in air-conditioner outdoor unit Two outdoor heat exchangers 8, and the He of the second restricting element 9 is connected in parallel between the first outdoor heat exchanger 7 and the second outdoor heat exchanger 8 Second controller 10, while the second commutation component 3 is set in coolant loop, indoor heat exchanger 4 can be made to be changed in the first outdoor Continue during hot 7 or second 8 defrost of outdoor heat exchanger of device to indoor heating, this improves user using air-conditioning to a certain extent Comfortableness during 100 heat-production functions of device, the problem of avoiding existing air conditioner indoor can not heat when outside is defrosted.
According to some embodiments of the present invention, the first controller 6 is configured to be in normally off, only works as air conditioner 100 when being in defrost pattern, and the first controller 6 is just opened, and thus, without controlling the running status of the first controller 7, is easy to sky The control operation of device 100 is adjusted, the long-time of air conditioner 100 is in and freezes or heat state.
In some embodiments of the invention, second controller 10 is configured to be in normally open, only works as air conditioner 100 when opening defrost pattern, and second controller is just closed, consequently facilitating air conditioner 100 is in refrigeration mode and heating mode Normal work.
Alternatively, first throttle element 5 is capillary or electric expansion valve, and the second restricting element 9 is also capillary or electricity Sub- expansion valve, for example, the restricting element 9 of first throttle element 5 and second can be simultaneously capillary or be electric expansion valve simultaneously, Certainly, first throttle element 5 can also be one in capillary or electric expansion valve, the second restricting element 9 be capillary or Another in electric expansion valve.Still optionally further, the restricting element 9 of first throttle element 5 and second is electric expansion valve, Due to the size of the i.e. controllable cold medium flux of aperture by controlling electric expansion valve, in electronic expansion valve opening maximum without section Stream acts on, it is therefore not necessary to set the controller in parallel with electric expansion valve that reducing pressure by regulating flow and break-make to refrigerant can be achieved, this Cost has been saved to a certain extent.
According to some embodiments of the present invention, the first outdoor heat exchanger 7 and the second outdoor heat exchanger 8 are two and independent changed Thermal element, thus, it is possible to largely improve the exchange capability of heat of outdoor heat exchanger.Certainly, the invention is not restricted to this, first Two parts of the outdoor heat exchanger 8 of outdoor heat exchanger 7 and second or a heat exchange element, it is not only simple in construction, but also Cost has been saved to a certain extent.
The control method of air conditioner according to embodiments of the present invention is described in detail below, wherein according to air conditioner The air conditioner of the above embodiment of the present invention, the first temperature sensor, second temperature sensor and the 3rd can be provided with air conditioner Temperature sensor, wherein, the first temperature sensor is used for the temperature for detecting the first outdoor heat exchanger, and second temperature sensor is used for The temperature of the second outdoor heat exchanger is detected, three-temperature sensor is used to detect the environment temperature in air-conditioner outdoor unit.
When following either condition meets, control air conditioner enters the first self-circulating defrosting pattern, in the first self-loopa White pattern, the first valve port of the first commutation component connect with the 3rd valve port, and the 4th valve port connects with the second valve port, the second commutation group The first interface of part and the 3rd orifice, the 4th interface are connected with second interface, and the first controller is opened, and second controller closes Close, the first outdoor heat exchanger is defrosted:
Condition one, after compressor accumulative operation t1 minutes, the first temperature T1 is less than first predetermined value T11, and first is warm Degree T1 and the first predetermined difference value BT1 sums are less than or equal to T10, and the 3rd temperature T3 > third predetermined value T33, wherein the first temperature The temperature that T1 is the first outdoor heat exchanger is spent, second temperature T2 is the temperature of the second outdoor heat exchanger, and the 3rd temperature T3 is air-conditioning Environment temperature in device outdoor unit, T10 are that air conditioner heat-production runs and arrives m2 minutes after compressor start continuous service m1 minutes Interior T1 minimum value.
Condition two, after compressor accumulative operation t2 minutes, the first temperature T1 is less than the 4th predetermined value T12, the 3rd temperature The predetermined value T34 of T3 > the 5th, and continue m3 minutes.
Condition three, after compressor accumulative operation t3 minutes, the first temperature T1 is less than the 6th predetermined value T13, the 3rd temperature The predetermined value T35 of T3 > the 7th.
Meet between environment temperature in temperature, air-conditioner outdoor unit and each preset temperature when the first outdoor heat exchanger When above-mentioned condition one is to any one condition in condition three, air conditioner just enters the first self-circulating defrosting pattern, to first Outdoor heat exchanger defrost.
It is understood that first predetermined value T11, the first predetermined difference value BT1, third predetermined value T33, the 4th predetermined value T12, the 5th predetermined value T34, the 6th predetermined value T13 and the 7th predetermined value T35 concrete numerical value can be carried out according to actual conditions Specific setting, just limited here without specific.Simultaneously in condition one, condition two, condition three during the accumulation operation of compressor Between can also specifically be limited according to actual conditions.
When following either condition meets, control air conditioner enters the second self-circulating defrosting pattern, in the second self-loopa White pattern, the first valve port of the first commutation component connect with the 3rd valve port, and the 4th valve port connects with the second valve port, the second commutation group The first interface of part is connected with second interface, the 4th interface and the 3rd orifice, and the first controller is opened, and second controller closes Close, the second outdoor heat exchanger is defrosted:
Condition four, after compressor accumulative operation t4 minutes, second temperature T2 is less than the first setting value T21, and second is warm The settings of degree T2 and second difference BT2 sums are less than or equal to T20, and the 3rd temperature T3 > the 3rd setting value T331, wherein T20 are Air conditioner heat-production is run and after compressor start continuous service m1 minutes to the minimum value of the T2 in m2 minutes.
Condition five, after compressor accumulative operation t5 minutes, second temperature T2 is less than the 4th setting value T22, the 3rd temperature The setting value T341 of T3 > the 5th, and continue m31 minutes.
Condition six, after compressor accumulative operation t6 minutes, second temperature T2 is less than the 6th setting value T23, the 3rd temperature The setting value T351 of T3 > the 7th.
Meet between environment temperature in temperature, air-conditioner outdoor unit and each preset temperature when the second outdoor heat exchanger When above-mentioned condition four is to any one condition in condition six, air conditioner just enters the second self-circulating defrosting pattern, to second Outdoor heat exchanger defrost.
It is understood that the first setting value T21, the second setting difference BT2, the 3rd setting value T331, the 4th setting value T22, the 5th setting value T341, the 6th setting value T23 and the 7th setting value T351 concrete numerical value can be entered according to actual conditions The specific setting of row, is just limited without specific here.The accumulation of compressor is run in condition four, condition five, condition six simultaneously Time can also specifically limit according to actual conditions.
When meeting to enter the first self-circulating defrosting pattern and the second self-circulating defrosting pattern simultaneously, first is initially entered certainly Circulate defrost pattern, after enter back into the second self-circulating defrosting pattern.If it is understood, however, that the first outdoor heat exchanger and There was only one among second outdoor heat exchanger and meet defrost condition, then entrance meets oneself of that outdoor heat exchanger of defrost condition Circulate defrost pattern.
The first self-circulating defrosting pattern is run in air conditioner or during the second self-circulating defrosting pattern, when detecting that satisfaction exits During condition, defrost is exited, that is to say, that be currently running the air-conditioning of the first self-circulating defrosting pattern or the second self-circulating defrosting pattern Device exits defrost pattern at once when detecting that satisfaction exits the condition of defrost, switches to heating mode or refrigeration mode.
According to the control method of the air conditioner of the present invention, during the defrost of air conditioner, indoor heat exchanger can be held Continue to indoor radiating, so as to ensure that the lasting heating of indoor set during defrost, this improves user and existed to a certain extent Using comfortableness during air conditioner heat-production function, while by detecting the temperature of the first outdoor heat exchanger and the second outdoor heat exchanger Degree, and by it compared with predetermined value to determine whether to be defrosted, can be defrosted according to actual conditions, avoid air-conditioning Device is defrosted in frostless situation and wastes energy, ensure that the purpose that realization has frost to defrost.
Further, in the first self-circulating defrosting pattern, exit criteria is:Detect that T1 is higher than the first design temperature It is worth, detects T1 higher than the second set temperature value and continued for first scheduled time or detect to remove the first outdoor heat exchanger Frost time more than the first setting time, wherein the first set temperature value is more than the second set temperature value.Changed outside to second Room During hot device defrosting, exit criteria is:Detect T2 higher than the 3rd set temperature value, detect T2 higher than the 4th set temperature value and Continue second scheduled time or detection to the time that the second outdoor heat exchanger is defrosted more than the second setting time, wherein the Three set temperature values are more than the 4th set temperature value.
When the first self-circulating defrosting pattern and the second self-circulating defrosting pattern meet respective exit criteria respectively, air-conditioning Device exits defrost pattern immediately, so as to switch to heating mode or refrigeration mode, to continue to indoor heating or refrigeration.
For example, when air conditioner is in heating mode, compressor open record compressor start continuously after 7 minutes arrive by operation T1 minimum values T10, T2 minimum value in 12 minutes is T20.
As shown in figure 5, if compressor start or the first outdoor heat exchanger defrost terminate rear timing and started, compressor adds up After operation 29 minutes, decision condition one, if T1 < first predetermined values T11 (for example, T11=-7 DEG C), and the predetermined difference values of T1+ first BT1 (for example, BT1=2.5 DEG C)≤T10, and the 3rd temperature T3 > third predetermined values T33 (for example, T33=-22 DEG C), if meeting Condition one, while check whether the second outdoor heat exchanger defrost flag is 0, and if 0, air conditioner just enters the first self-loopa White pattern, so as to the first outdoor heat exchanger defrost, now the defrost flag of the first outdoor heat exchanger is 1.If it is unsatisfactory for condition One, then continue decision condition two and condition three, if there is a satisfaction in condition two and condition three, and the second outdoor heat exchanger defrost Flag is 0, then air conditioner enters the first self-circulating defrosting pattern.
After air conditioner enters the first self-circulating defrosting pattern 1s, T1 is persistently detected, when detecting that T1 > first set temperature During angle value (for example, the first set temperature value is 18 DEG C), the first self-circulating defrosting pattern is exited, otherwise continues to detect, works as detection To the set temperature values of T1 > second (for example, the second set temperature value be 8 DEG C), and continued for first scheduled time (such as first is pre- Fix time as 30 seconds), or detect air conditioner to the time that the first outdoor heat exchanger is defrosted more than the first setting time (example Such as, the first setting time is 3 minutes) when, air conditioner exits the first self-circulating defrosting pattern, now the change of the first outdoor heat exchanger White flag is 0.
As shown in fig. 6, if compressor start or the second outdoor heat exchanger defrost terminate rear timing and started, compressor adds up After operation 29 minutes, decision condition four, if T2 < the first setting value T21 (for example, T21=-7 DEG C), and T2+ second sets difference BT2 (for example, BT2=2.5 DEG C)≤T20, and the setting value T331 (for example, T331=-22 DEG C) of the 3rd temperature T3 > the 3rd, if full Sufficient condition four, while check whether the first outdoor heat exchanger defrost flag is 0, and if 0, air conditioner just enters the second self-loopa Defrost pattern, so as to the second outdoor heat exchanger defrost, now the defrost flag of the second outdoor heat exchanger is 1, if being unsatisfactory for bar Part four, then air conditioner continues decision condition five and condition six, if there is a satisfaction in condition five and condition six, and the first outdoor is changed Hot device defrost flag is 0, then air conditioner enters the second self-circulating defrosting pattern.
Air conditioner enter the second self-circulating defrosting pattern 1s after, persistently detect T2, when detect T2 > the 3rd setting temperature During angle value (for example, the 3rd set temperature value is 18 DEG C), the second self-circulating defrosting pattern is exited, otherwise continues to detect, works as detection To the set temperature values of T2 > the 4th (for example, the 4th set temperature value be 8 DEG C), and continued for second scheduled time (such as second is pre- Fix time as 30 seconds), or detect air conditioner to the time that the second outdoor heat exchanger is defrosted more than the second setting time (example Such as, the second setting time is 3 minutes) when, air conditioner exits the second self-circulating defrosting pattern, now the change of the second outdoor heat exchanger White flag is 0.
After air conditioner exits defrost pattern, the first controller is closed, and second controller is in opening, the The first interface of two commutation components connects with second interface, and the 4th interface and the 3rd orifice, air conditioner enter heating mode Or refrigeration mode, exit defrost pattern and enter in heating mode certain time (for example, 4 minutes) rear chamber aiding in air conditioner Heating combined equipment is closed.
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 combining the embodiment or example description Point is contained at least one embodiment or 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.Moreover, specific features, structure, material or the feature of description can be with office Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification 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, changed, replacing and modification.

Claims (9)

  1. A kind of 1. air conditioner, it is characterised in that including:
    Compressor, the compressor have exhaust outlet and gas returning port;
    First commutation component, the first commutation component have the first valve port to the 4th valve port, first valve port and the second valve Mouthful connected with one of in the 3rd valve port, the 4th valve port with it is another in second valve port and the 3rd valve port Individual connection, first valve port are connected with the exhaust outlet, and the 4th valve port is connected with the gas returning port;
    Indoor heat exchanger, the first end of the indoor heat exchanger are connected with the 3rd valve port;
    There is first interface to the 4th interface, the first interface to be connect with second for second commutation component, the second commutation component Mouthful connected with one of in the 3rd interface, the 4th interface with it is another in the second interface and the 3rd interface Be connected between second end of individual connection, the first interface and the indoor heat exchanger first throttle element that is connected in parallel and First controller, the 4th interface are connected with second valve port;
    First outdoor heat exchanger and the second outdoor heat exchanger, the first end of first outdoor heat exchanger and the 3rd interface phase Even, the first end of second outdoor heat exchanger is connected with the second interface, the second end of first outdoor heat exchanger with The second restricting element and second controller being connected in parallel are connected between second end of second outdoor heat exchanger;
    Wherein, when the air conditioner is in heating mode, first controller is closed and the second controller is opened.
  2. 2. air conditioner according to claim 1, it is characterised in that the first commutation component is four-way valve.
  3. 3. air conditioner according to claim 1, it is characterised in that the second commutation component is four-way valve.
  4. 4. air conditioner according to claim 1, it is characterised in that first controller is configured to be in normally closed shape State.
  5. 5. air conditioner according to claim 1, it is characterised in that the second controller is configured to be in normally opened shape State.
  6. 6. air conditioner according to claim 1, it is characterised in that the first throttle element is capillary or electronic expansion Valve, second restricting element are capillary or electric expansion valve.
  7. 7. air conditioner according to claim 1, it is characterised in that changed outside first outdoor heat exchanger and the second Room Hot device is two independent heat exchange elements, or first outdoor heat exchanger and second outdoor heat exchanger are a heat exchange Two parts of element.
  8. 8. a kind of control method of air conditioner, it is characterised in that the air conditioner is according to any one of claim 1-5 Air conditioner, the control method is as follows:
    When following either condition meets, control the air conditioner to enter the first self-circulating defrosting pattern, followed certainly described first Ring defrost pattern, second controller are closed, the first outdoor heat exchanger are defrosted:
    Condition one, after compressor accumulative operation t1 minutes, the first temperature T1 is less than first predetermined value T11, and the first temperature T1 It is less than or equal to T10, and the 3rd temperature T3 > third predetermined value T33 with the first predetermined difference value BT1 sums, wherein the first temperature T1 For the temperature of the first outdoor heat exchanger, second temperature T2 is the temperature of the second outdoor heat exchanger, and the 3rd temperature T3 is air conditioner chamber Environment temperature in outer machine, the T10 are that air conditioner heat-production runs and arrives m2 minutes after compressor start continuous service m1 minutes Interior T1 minimum value;
    Condition two, after compressor accumulative operation t2 minutes, the first temperature T1 is less than the 4th predetermined value T12, the 3rd temperature T3 > 5th predetermined value T34, and continue m3 minutes;
    Condition three, after compressor accumulative operation t3 minutes, the first temperature T1 is less than the 6th predetermined value T13, the 3rd temperature T3 > 7th predetermined value T35;
    When following either condition meets, control the air conditioner to enter the second self-circulating defrosting pattern, followed certainly described second Ring defrost pattern, second controller are closed, the second outdoor heat exchanger are defrosted:
    Condition four, after compressor accumulative operation t4 minutes, second temperature T2 is less than the first setting value T21, and second temperature T2 It is less than or equal to T20, and the setting value T331 of the 3rd temperature T3 > the 3rd with the second setting difference BT2 sums, wherein the T20 is Air conditioner heat-production is run and after compressor start continuous service m1 minutes to the minimum value of the T2 in m2 minutes;
    Condition five, after compressor accumulative operation t5 minutes, second temperature T2 is less than the 4th setting value T22, the 3rd temperature T3 > 5th setting value T341, and continue m31 minutes;
    Condition six, after compressor accumulative operation t6 minutes, second temperature T2 is less than the 6th setting value T23, the 3rd temperature T3 > 7th setting value T351;
    Wherein when meeting to enter the first self-circulating defrosting pattern and the second self-circulating defrosting pattern simultaneously, first is initially entered certainly Circulate defrost pattern, after enter back into the second self-circulating defrosting pattern.
    When air conditioner runs the first self-circulating defrosting pattern or the second self-circulating defrosting pattern, meet exit criteria when detecting When, exit defrost.
  9. 9. the control method of air conditioner according to claim 8, it is characterised in that
    In the first self-circulating defrosting pattern, the exit criteria is:Detect that T1 is higher than the first set temperature value, detects T1 Higher than the second set temperature value and continue first scheduled time or detection first outdoor heat exchanger is defrosted when Between more than the first setting time, wherein first set temperature value is more than second set temperature value;
    When being defrosted to second outdoor heat exchanger, the exit criteria is:Detect T2 higher than the 3rd set temperature value, inspection T2 is measured higher than the 4th set temperature value and continued for second scheduled time or detect to remove second outdoor heat exchanger Frost time more than the second setting time, wherein the 3rd set temperature value is more than the 4th set temperature value.
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CN105202794B (en) * 2015-09-29 2018-01-19 美的集团武汉制冷设备有限公司 Air conditioner
EP3187789A4 (en) * 2015-10-27 2018-03-21 GD Midea Heating & Ventilating Equipment Co., Ltd. Enhanced vapor injection air conditioning system
CN111121193B (en) * 2018-10-31 2021-10-22 广东美芝精密制造有限公司 Air conditioner

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07294047A (en) * 1994-04-21 1995-11-10 Mitsubishi Heavy Ind Ltd Air conditioner
JP2003090640A (en) * 2001-09-14 2003-03-28 Saginomiya Seisakusho Inc Refrigeration cycle for air conditioner
CN200955881Y (en) * 2006-01-05 2007-10-03 南京天加空调设备有限公司 Continuous defrosting and heating air source heat pump
CN101144662A (en) * 2007-06-06 2008-03-19 西安建筑科技大学 Dual-purpose heat pump device for winter and summer
CN101788206A (en) * 2009-07-03 2010-07-28 曾华文 Outdoor double heat exchanger defrosting low-temperature heating system
CN103759456A (en) * 2014-01-27 2014-04-30 平武臣 Heat exchange system of air conditioner or heat pump and defrosting method of heat exchange system
CN103968503A (en) * 2014-04-14 2014-08-06 广东美的暖通设备有限公司 Air conditioner outdoor unit, and defrosting method and device for air conditioner
CN104110766A (en) * 2013-05-29 2014-10-22 广东美的制冷设备有限公司 Method for controlling intelligent defrosting of air conditioner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07294047A (en) * 1994-04-21 1995-11-10 Mitsubishi Heavy Ind Ltd Air conditioner
JP2003090640A (en) * 2001-09-14 2003-03-28 Saginomiya Seisakusho Inc Refrigeration cycle for air conditioner
CN200955881Y (en) * 2006-01-05 2007-10-03 南京天加空调设备有限公司 Continuous defrosting and heating air source heat pump
CN101144662A (en) * 2007-06-06 2008-03-19 西安建筑科技大学 Dual-purpose heat pump device for winter and summer
CN101788206A (en) * 2009-07-03 2010-07-28 曾华文 Outdoor double heat exchanger defrosting low-temperature heating system
CN104110766A (en) * 2013-05-29 2014-10-22 广东美的制冷设备有限公司 Method for controlling intelligent defrosting of air conditioner
CN103759456A (en) * 2014-01-27 2014-04-30 平武臣 Heat exchange system of air conditioner or heat pump and defrosting method of heat exchange system
CN103968503A (en) * 2014-04-14 2014-08-06 广东美的暖通设备有限公司 Air conditioner outdoor unit, and defrosting method and device for air conditioner

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