CN108006926A - Air conditioner and its control method - Google Patents
Air conditioner and its control method Download PDFInfo
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- CN108006926A CN108006926A CN201711284468.8A CN201711284468A CN108006926A CN 108006926 A CN108006926 A CN 108006926A CN 201711284468 A CN201711284468 A CN 201711284468A CN 108006926 A CN108006926 A CN 108006926A
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- Prior art keywords
- air conditioner
- valve port
- heating branch
- temperature
- chassis
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a kind of air conditioner and its control method, air conditioner includes：Compressor, commutation valve group, outdoor heat exchanger, indoor heat exchanger, chassis and heating branch.Compressor has exhaust outlet and gas returning port, and commutation valve group has the first valve port, the second valve port, the 3rd valve port and the 4th valve port, and the first valve port is connected with exhaust outlet, and the 4th valve port is connected with gas returning port.The chassis of outdoor heat exchanger lower part is provided with osculum to discharge the condensed water of outdoor heat exchanger generation.Heating branch is arranged on chassis, and the one end for heating branch is connected between exhaust outlet and the first valve port, and the other end for heating branch is connected between gas returning port and the 4th valve port.Air conditioner according to the present invention, can heat chassis using the high temperature refrigerant flowed out from compressor, prevent chassis from freezing and influencing the heat transfer effect of outdoor heat exchanger, improve the stability of air conditioner operation.
Description
Technical field
The present invention relates to technical field of electric appliances, specifically, more particularly to a kind of air conditioner and its control method.
Background technology
Operationally, when outdoor environment temperature is low, when especially snowing, the condensed water of outdoor unit is easy to heat pump air conditioner
The glaciation on chassis, and discharge outlet is gradually blocked, cause defrosting water not discharge.With defrosting, the progress freezed, ice sheet
Progressive additive, until spreading to exchanger base, causes the resistance increase of exchanger heat choke, under causing unit heating performance serious
Drop.
The content of the invention
It is contemplated that at least solve one of technical problem existing in the prior art.For this reason, the present invention proposes a kind of sky
Device is adjusted, the air conditioner has the advantages that simple in structure, stable.
The present invention also proposes a kind of control method of air conditioner, and the control method of the air conditioner has control program letter
Singly, the advantages of flexibility is high.
Air conditioner according to embodiments of the present invention, the air conditioner include：Compressor, the compressor have exhaust outlet and
Gas returning port；Commutate valve group, and the commutation valve group has the first valve port, the second valve port, the 3rd valve port and the 4th valve port, and described first
Valve port is connected with the exhaust outlet, and the 4th valve port is connected with the gas returning port；Outdoor heat exchanger, the outdoor heat exchanger
One end is connected with second valve port；Indoor heat exchanger, one end of the indoor heat exchanger are another with the outdoor heat exchanger
End connection, the other end of the indoor heat exchanger are connected with the 3rd valve port；Chassis, the chassis is close to the outdoor heat exchange
Device, the chassis are equipped with osculum, and the condensed water on the outdoor heat exchanger is condensed in discharge；For preventing in the chassis
Condensation water freezing heating branch, the heating branch is arranged on the chassis, described in one end of the heating branch is connected to
Between exhaust outlet and first valve port, the other end of the heating branch be connected to the gas returning port and the 4th valve port it
Between；When the air conditioner is in refrigerating state, first valve port is connected with second valve port, the 3rd valve port and institute
State the connection of the 4th valve port；When the air conditioner is in heating state, first valve port is connected with the 3rd valve port, described
Second valve port is connected with the 4th valve port.
Air conditioner according to embodiments of the present invention, by setting the valve group that commutates, can connect different valve ports and realize air-conditioning
The heating of device or refrigerating function.Moreover, air conditioner is equipped with heating branch, the high temperature refrigerant from compressor outflow can be utilized the bottom of to
Disk is heated, and prevents chassis from freezing and influencing the heat transfer effect of outdoor heat exchanger, improves the stability of air conditioner operation.
According to some embodiments of the present invention, the heating branch is located in the chassis.
In some embodiments of the present invention, the heating branch is contacted with the exterior bottom wall on the chassis.
According to some embodiments of the present invention, the osculum is multiple for what is be spaced apart, in multiple osculums extremely
The heating branch is equipped with one few.
According to some embodiments of the present invention, the heating branch is close to the osculum.
Further, the heating branch is located at the surface or underface of the osculum.
According to some embodiments of the present invention, the heating branch includes：Refrigerant pipe；And on-off element, the break-make member
Part and refrigerant pipe series connection.
In some embodiments of the invention, one end of the refrigerant pipe is connected with the exhaust outlet, the refrigerant pipe
The other end is connected with one end of the on-off element, and the other end of the on-off element is connected with the gas returning port.
According to some embodiments of the present invention, one end of the on-off element is connected with the exhaust outlet, the break-make member
The other end of part is connected with one end of the refrigerant pipe, and the other end of the refrigerant pipe is connected with the gas returning port.
In some embodiments of the invention, the on-off element is solenoid valve or electric expansion valve.
In some embodiments of the invention, the air conditioner further includes：Oil eliminator, the oil eliminator have air inlet
Mouth, gas vent and liquid outlet, the air inlet are connected with the exhaust outlet, and the gas vent connects with first valve port
Logical, the liquid outlet is connected with the gas returning port, and described one end for heating branch is connected to the gas vent and described the
Between one valve port.
The control method of air conditioner according to embodiments of the present invention, the air conditioner are air conditioner described above, setting
Outdoor temperature is the first temperature T1, and the control method includes：It is described when ambient temperature is more than the first temperature T1
Branch is heated to close；When ambient temperature is less than or equal to the first temperature T1, and the air conditioner run t1 minutes after,
Start the heating branch.
The control method of air conditioner according to embodiments of the present invention, the logical of heating branch is controlled according to outdoor environment temperature
Disconnected, when the condensed water in chassis is there are during icing hidden danger, startup heating branch, heats chassis, prevents cold in chassis
Condensate solidification freezes and influences the heat exchange property of outdoor heat exchanger.When the condensed water in chassis, there is no the hidden danger that solidification freezes
When, heating branch is disconnected, so as to energy-saving consumption-reducing.
According to some embodiments of the present invention, the first temperature T1, meets：-10℃≤T1≤4℃.
In some embodiments of the invention, the value range of the t1 is：8 minutes≤t1≤12 minute.
According to some embodiments of the present invention, when ambient temperature be less than or equal to the first temperature T1 and it is described plus
When hot branch starts, the heating branch after t2 minutes, close t3 minutes by the heating branch.
In some embodiments of the invention, the value range of the t2 is：10 minutes≤t2≤70 minute；The t3's
Value range is：10 minutes≤t3≤70 minute.
In some embodiments of the invention, when ambient temperature be less than or equal to the first temperature T1 and it is described plus
When hot branch starts, the heating branch starts to be carried out with t2 minutes described, described t3 minutes of closing for loop cycle.
According to some embodiments of the present invention, when the air conditioner enters defrost state, after defrost starts t4 minutes, institute
Heating branch is stated to start.
In some embodiments of the invention, the value range of the t4 is：1 minute≤t4≤3 minute.
According to some embodiments of the present invention, when the air conditioner enters defrost state, the air conditioner detects in real time
Ambient temperature and the relation of the first temperature T1, when the ambient temperature of air conditioner detection is less than or equal to first temperature
During T1, and after described t1 minutes of air conditioner operation, start the heating branch.
In some embodiments of the invention, outdoor temperature is set as second temperature T2, when ambient temperature is less than institute
State second temperature T2, the air conditioner is in shutdown status and the shutdown status duration was more than t5 minutes, described in force start
Air conditioner and the heating branch, run time after t6 minutes, shut down by the air conditioner.
According to some embodiments of the present invention, the value range of the t5 is：50 minutes≤t5≤120 minute；The t6
Value range be：10 minutes≤t6≤60 minute.
In some embodiments of the invention, the first temperature T1, the second temperature T2 meet：-15≤T2≤1
DEG C, and T2 ＜ T1.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the structure diagram of air conditioner according to embodiments of the present invention；
Fig. 2 is the structure diagram of air conditioner according to embodiments of the present invention；
Fig. 3 is the partial structural diagram of air conditioner according to embodiments of the present invention；
Fig. 4 is the partial structural diagram of air conditioner according to embodiments of the present invention；
Fig. 5 is the partial structural diagram of air conditioner according to embodiments of the present invention；
Fig. 6 is the partial structural diagram of air conditioner according to embodiments of the present invention.
Reference numeral：
Air conditioner 100,
Compressor 10, exhaust outlet 110, gas returning port 120,
Commutate valve group 20, the first valve port 210, the second valve port 220, the 3rd valve port 230, the 4th valve port 240,
Outdoor heat exchanger 30,
Indoor heat exchanger 40,
Chassis 50, osculum 510,
Heating branch 60, refrigerant pipe 610, on-off element 620,
Oil eliminator 70.
Embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " on ", " under ", " rear ", "left", "right", " bottom ", " interior ",
The orientation or position relationship of instructions such as " outer " are based on orientation shown in the drawings or position relationship, are for only for ease of and describe this hair
It is bright and simplify description, rather than instruction or imply that signified device or element must have specific orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.In addition, define " first ", the feature of " second " can be bright
Show or implicitly include one or more this feature.In the description of the present invention, unless otherwise indicated, " multiple " contain
Justice is two or more.
In the description of the present invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
As shown in figs 1 to 6, air conditioner 100 according to embodiments of the present invention, air conditioner 100 include：Compressor 10, commutation
Valve group 20, outdoor heat exchanger 30, indoor heat exchanger 40, chassis 50 and heating branch 60.
Specifically, as depicted in figs. 1 and 2, compressor 10 has exhaust outlet 110 and gas returning port 120.Refrigerant is through overcompression
After machine 10 compresses, high pressure gaseous refrigerant can discharge compressor 10 from exhaust outlet 110, then flow to outdoor heat exchanger 30
(or indoor heat exchanger 40), the liquid that refrigerant becomes normal temperature high voltage after outdoor heat exchanger 30 (or indoor heat exchanger 40) heat dissipation are cold
Matchmaker.The refrigerant of liquid gets in heat exchanger 40 (or outdoor heat exchanger 30), and liquid refrigerants vaporizes the refrigerant for becoming gaseous state low temperature,
So as to absorb substantial amounts of heat, indoor refrigeration (or heating) is realized, the refrigerant after heat exchange is finally from gas returning port 120
It is back in compressor 10, is compressed again, realizes refrigerant circulating in 100 system of air conditioner.
As depicted in figs. 1 and 2, the valve group 20 that commutates has the first valve port 210, the second valve port 220, the 3rd valve port 230 and the
Four valve ports 240, the first valve port 210 are connected with exhaust outlet 110, and the 4th valve port 240 is connected with gas returning port 120.Thus, from exhaust outlet
The refrigerants of 110 discharges can be flowed into the first valve port 210, and the refrigerant after heat exchange can be from after the 4th valve port 240
Gas returning port 120 is back in compressor 10.
One end of outdoor heat exchanger 30 is connected with the second valve port 220, one end and the outdoor heat exchanger 30 of indoor heat exchanger 40
Other end connection, the other end of indoor heat exchanger 40 connects with the 3rd valve port 230.Thus, it is possible to refrigerant is set to pass through reversal valve
Group 20 is flowed in heat exchanger 40 and outdoor heat exchanger 30 indoors, refrigerant flowing in heat exchanger 40 and outdoor heat exchanger 30 indoors
When, heat exchange can be carried out with surrounding environment, realize the refrigeration or heat-production functions of air conditioner 100.
Chassis 50 is equipped with osculum close to outdoor heat exchanger 30, chassis 50, is condensed in discharge on outdoor heat exchanger 30
Condensed water.
Heating branch 60 is used to prevent the condensation water freezing in chassis 50, and as shown in figures 3 to 6, heating branch 60 is arranged on bottom
Disk 50, one end of heating branch 60 are connected between 110 and first valve port 210 of exhaust outlet, the other end connection of heating branch 60
Between 120 and the 4th valve port 240 of gas returning port.Thus, the high temperature and pressure refrigerant discharged from exhaust outlet 110 can flow into heating
Branch 60, heats chassis 50, prevents the condensation water freezing on chassis 50 and influences the heat transfer effect of outdoor heat exchanger 30.
Moreover, the refrigerant in heating branch 60 is back in compressor 10 after 50 heat release of chassis from gas returning port 120, refrigerant can be with
Continue cycling through utilization.
When air conditioner 100 is in refrigerating state, the first valve port 210 is connected with the second valve port 220, the 3rd valve port 230 with
4th valve port 240 connects.Thus, the refrigerant for the high temperature and pressure discharged from exhaust outlet 110, is flowed into commutation valve group 20, and successively
It is flowed into by the first valve port 210 and the second valve port 220 in outdoor heat exchanger 30.High temperature and pressure refrigerant is in outdoor heat exchanger 30
Condensation heat, the refrigerant temperature after heat exchange is carried out with outdoor environment to be reduced, and low temperature refrigerant is flowed into from outdoor heat exchanger 30
In indoor heat exchanger 40, and heat exchange, low temperature refrigerant evaporation endothermic, so as to fulfill the effect of indoor refrigeration are carried out with indoor environment
Fruit.By indoor heat exchanger 40 heat exchange after refrigerant flow into pass through the 3rd valve port 230 and the 4th valve port 240 successively, finally from time
Gas port 120 is back in compressor 10, realizes circulating for refrigerant.
When air conditioner 100 is in heating state, the first valve port 210 is connected with the 3rd valve port 230, the second valve port 220 with
4th valve port 240 connects.Thus, the high temperature and pressure refrigerant discharged from exhaust outlet 110, is flowed into commutation valve group 20, and passes through successively
Cross the first valve port 210 and the 3rd valve port 230 is entered in indoor heat exchanger 40, high temperature and pressure refrigerant coagulates in heat exchanger 40 indoors
Heat release is tied, realizes heating indoor effect.Refrigerant after heat exchange flows into outdoor heat exchanger 30 from indoor heat exchanger 40
It is interior, and the evaporation endothermic in outdoor heat exchanger 30, refrigerant carry out heat exchange with outdoor environment.Handed over through 30 heat of outdoor heat exchanger
Refrigerant after changing finally passes through the second valve port 220 and the 4th valve port 240 successively, is back to from gas returning port 120 in compressor 10.
Air conditioner 100 according to embodiments of the present invention, by setting the valve group 20 that commutates, can connect different valve ports and realize
The heating of air conditioner 100 or refrigerating function.Moreover, air conditioner 100 is equipped with heating branch 60, it can utilize and be flowed out from compressor 10
High temperature refrigerant chassis 50 is heated, prevent chassis 50 from freezing and influencing the heat transfer effect of outdoor heat exchanger 30, improve
The stability that air conditioner 100 is run..
According to some embodiments of the present invention, as shown in figures 3 to 6, heating branch 60 can be located in chassis 50.Thus,
When heating high temperature refrigerant inflow 50 position of chassis in branch 60, chassis 50 is heated in high temperature refrigerant heat release, so as to
Prevent the condensation water freezing in chassis 50 and influence the heat exchange efficiency of outdoor heat exchanger 30.Moreover, heating branch 60 is arranged on bottom
In disk 50, set easy to heat the layout of branch 60, improve the space availability ratio of air conditioner 100.
In some embodiments of the present invention, heating branch 60 can be contacted with the exterior bottom wall on chassis 50.It is understood that
Vapor in outdoor environment can collect the bottom for flowing into chassis 50, will heat when outdoor heat exchanger 30 condenses into water droplet
Branch 60 is arranged at the exterior bottom wall on chassis 50, can utilize heat high temperature refrigerant in branch 60 directly to the bottom wall on chassis 50 into
Row heating, improves energy utilization rate.Moreover, will heat branch 60 be arranged on chassis 50 exterior bottom wall, can prevent condensed water with
Heating branch 60 directly contacts and influences to heat the heating effect of branch 60.
According to some embodiments of the present invention, as shown in Figure 5 and Figure 6, osculum 510 can be multiple for what is be spaced apart, by
This, can improve 50 drainage efficiency of chassis.At least one interior be equipped with multiple osculums 510 heats branch 60, thus, adds
Hot branch 60 directly can heat osculum 510, prevent condensation water freezing and block osculum 510, influence chassis 50
Drainage efficiency.As shown in fig. 6, heating branch 60 can intert multiple osculums 510 up and down successively, to improve to osculum
510 heating effect.
According to some embodiments of the present invention, as shown in Figure 3 and Figure 4, heating branch 60 can be close to osculum 510.By
This, can prevent heating branch 60 from influencing the drainage effect of osculum 510, furthermore, it is possible to using heating branch 60 to osculum
510 are heated, and prevent condensed water from freezing at osculum 510 and influencing the discharge of condensed water.
Further, the surface or underface of osculum 510 can be located at by heating branch 60.That is, heating branch
Road 60 can be located at the surface of osculum 510, as shown in the example in Fig. 3 and Fig. 4；Certainly, heating branch 60 can also position
In the underface of osculum 510, thus, it is possible to the diversity that heating branch 60 is set is improved, can basis in actual setting
It is actually needed and setting is laid out to the position for heating branch 60.
According to some embodiments of the present invention, as depicted in figs. 1 and 2, heating branch 60 can include：610 He of refrigerant pipe
On-off element 620, on-off element 620 and refrigerant pipe 610 are connected.Thus, the refrigerant of high temperature and pressure can be in 620 He of on-off element
Flowing in refrigerant pipe 610, on-off element 620 can connect or close heating branch 60 and tune can be with the temperature and pressure of whole refrigerant
Power, improves the evaporation exothermal effect of the refrigerant in heating branch 60, and can prevent the refrigerant for being back to compressor 10 from " liquid occurs
Hit " phenomenon, and influence the working performance and service life of compressor 10.
In some embodiments of the invention, as shown in Fig. 2, one end of refrigerant pipe 610 is connected with exhaust outlet 110, refrigerant
The other end of pipe 610 is connected with one end of on-off element 620, and the other end of on-off element 620 is connected with gas returning port 120.Thus,
The part high temperature and pressure refrigerant flowed out from exhaust outlet 110 can first flow into refrigerant pipe 610, evaporate and put in refrigerant pipe 610
Heat prevents the condensation water freezing in chassis 50 to be heated to chassis 50.Refrigerant after heat exchange flows into break-make member
Reducing pressure by regulating flow in part 620, is finally back in compressor 10 from gas returning port 120 and is recycled.
According to some embodiments of the present invention, as shown in Figure 1, one end of on-off element 620 is connected with exhaust outlet 110, lead to
The other end of disconnected element 620 is connected with one end of refrigerant pipe 610, and the other end of refrigerant pipe 610 is connected with gas returning port 120.Thus,
The part high temperature and pressure refrigerant discharged from exhaust outlet 110 can flow into on-off element 620 first and carry out reducing pressure by regulating flow, after decompression
High temperature refrigerant flows into refrigerant pipe 610 and is evaporated heat dissipation, to be heated to chassis 50.
In some embodiments of the invention, on-off element 620 can be solenoid valve or electric expansion valve.That is,
On-off element 620 can select solenoid valve, thus, easy to control, manual dexterity.On-off element 620 can also select electronics swollen
Swollen valve, thus, it is possible to improve the diversity of the selection of on-off element 620.
In some embodiments of the invention, as depicted in figs. 1 and 2, air conditioner 100 can also include：Oil eliminator 70,
Oil eliminator 70 has air inlet, gas vent and liquid outlet, and air inlet is connected with exhaust outlet 110, gas vent and first
Valve port 210 connects, and liquid outlet is connected with gas returning port 120, and one end of heating branch 60 is connected to gas vent and the first valve port
Between 210.It should be noted that the refrigerant discharged from exhaust outlet 110 may be gas-liquid mixture, or it is entrained with lubricating oil etc.
Impurity, in order to prevent liquid refrigerants and lubricating oil influence the heat transfer effect of refrigerant, the refrigerant flowed out from exhaust outlet 110 can from into
Gas port, which enters in oil eliminator 70, to carry out isolation of purified, liquid refrigerants and lubricating oil and is back to compressor 10 from liquid outlet, point
The first valve port 210 is flowed into from gas vent from purified gaseous coolant and carries out refrigerant circulation, realize the refrigeration of air conditioner 100
Or heating effect.
The control method of air conditioner 100 according to embodiments of the present invention, air conditioner 100 are air conditioner 100 described above,
Set outdoor temperature includes as the first temperature T1, control method：When ambient temperature is more than the first temperature T1, branch is heated
Close；When ambient temperature is less than or equal to the first temperature T1, and air conditioner run t1 minute after, start heat branch.
It should be noted that " the first temperature " described here can be configured according to actual needs, such as the first temperature
Degree can be temperature when neighbouring condensed water is frozen into ice.When ambient temperature is more than the first temperature, the condensation on chassis
Water will not be solidified as ice, therefore close heating branch, so as to energy-saving consumption-reducing.When environment temperature is less than or equal to the first temperature
When, the condensed water in chassis can be solidified as ice, at this time, after air conditioner runs a period of time, be produced at outdoor heat exchanger
Condensed water is collected in chassis, and the water-setting consolidation ice in chassis, starts heating branch and chassis is heated in order to prevent.
The control method of air conditioner 100 according to embodiments of the present invention, heating branch 60 is controlled according to outdoor environment temperature
Break-make, when the condensed water in chassis 50 is there are during icing hidden danger, starts heating branch 60, chassis 50 heated, is prevented
Condensed water solidification in chassis 50 freezes and influences the heat exchange property of outdoor heat exchanger 30.When the condensed water in chassis 50 is not present
When solidifying the hidden danger to freeze, heating branch 60 is disconnected, so as to energy-saving consumption-reducing.
According to some embodiments of the present invention, the first temperature T1 meets：-10℃≤T1≤4℃.It is understood that
Under standard pressure, the temperature that condensed water solidification freezes is 0 DEG C, by setting the first temperature T1 to meet：- 10 DEG C≤T1≤4 DEG C, when
When ambient temperature is more than 4 DEG C, it is smaller to condense the possibility of water freezing, closes heating branch, prevents the waste of the energy.When outer
When boundary's environment temperature is less than or equal to 4 DEG C, after air conditioner operation a period of time, starts heating branch and chassis is heated, so that
It can effectively prevent the condensed water in chassis from solidifying to freeze.
In some embodiments of the invention, the value range of t1 is：8 minutes≤t1≤12 minute.That is, when outer
When boundary's environment temperature is less than or equal to the first temperature T1, after air conditioner is run 8-12 minutes, start heating branch.It is appreciated that
It is that when air conditioner just starts, the vapor around outdoor heat exchanger can't be condensed into water droplet at once.One section is run in air conditioner
After time, the Water vapor condensation around outdoor heat exchanger is drop, and collects and be flowed into chassis, at this time, starts heating branch
Chassis is heated, is frozen with preventing the condensed water in chassis from solidifying.Thus, it is possible to energy-saving consumption-reducing, prevents energy waste.
According to some embodiments of the present invention, when ambient temperature is less than or equal to the first temperature T1 and heating branch opens
When dynamic, heating branch after t2 minutes, close t3 minutes by heating branch.It is understood that when the presence in chassis freezes
During hidden danger, start heating branch and chassis is heated, after heating branch heating a period of time, one section of branch of heating can be closed
Time, thus, it is possible to prevent energy waste.
Further, the value range of t2 is：10 minutes≤t2≤70 minute；The value range of t3 is：10 minutes≤t3
≤ 70 minutes.That is, the heating time of heating branch can be 10-70 minutes, closing the time of heating branch can be
10-70 minutes, by experimental verification, when the value range of t2 is：10 minutes≤t2≤70 minute；The value range of t3 is：10
During minute≤t3≤70 minute, the problem of can effectively preventing the heat exchange property of chassis internal cause icing effect outdoor heat exchanger, carry
The high working performance of air conditioner, while the energy can be saved, prevent energy waste.
In some embodiments of the invention, when ambient temperature is less than or equal to the first temperature T1 and heating branch opens
When dynamic, heating branch starts to be carried out for t3 minutes with t2 minutes, closing for loop cycle.Thus, it is possible to using heating branch the bottom of to
Disk carries out regular intermittent heating, on the one hand can effectively prevent from terminating the condensed water solidification in disk and freeze and influence outdoor
The heat transfer effect of heat exchanger；On the other hand the energy can be saved.
According to some embodiments of the present invention, when air conditioner enters defrost state, after defrost starts t4 minutes, heating branch
Road starts.Thus, it is possible to the defrosting water for effectively preventing from flowing into chassis is frozen into ice and influences the heat exchange effect of outdoor heat exchanger
Fruit.
In some embodiments of the invention, the value range of t4 is：1 minute≤t4≤3 minute.By verification experimental verification,
Work as satisfaction：During 1 minute≤t4≤3 minute, it can effectively prevent the defrosting water in chassis from solidifying to freeze, and can effectively prevent
Freeze in chassis and influence the heat transfer effect of outdoor heat exchanger, and can be with energy-saving consumption-reducing.
According to some embodiments of the present invention, when air conditioner enters defrost state, air conditioner detects ambient temperature in real time
With the relation of the first temperature T1, when the ambient temperature of air conditioner detection is less than or equal to the first temperature T1, and air conditioner runs t1
After minute, start heating branch.It is understood that when air conditioner operation defrost state, through after a period of time, outdoor heat exchange
Defrosting water can collect and be flowed into chassis on device, thus, start heating branch, chassis can be added using branch is heated
Heat, effectively prevents the defrosting water in chassis from solidifying to freeze.
In some embodiments of the invention, outdoor temperature is set as second temperature T2, when ambient temperature is less than the
Two temperature T2, air conditioner are in shutdown status and the shutdown status duration was more than t5 minutes, force start air conditioner and heating
Branch, run time after t6 minutes, shut down by air conditioner.It is understood that when ambient temperature it is relatively low, the ponding in chassis
Freeze the hidden danger for existing and freezing damage outdoor heat exchanger, and there is also solidify to damage pipeline when temperature is relatively low for the refrigerant in air conditioner
Hidden danger, therefore, after outdoor environment temperature is relatively low, air conditioner is in shutdown status for a period of time, by force start air conditioner and
Heat branch for a period of time, so that the refrigerant circulation flowing of air conditioner, and chassis is heated using branch is heated, prevent
Air conditioner is frozen damage, improves the stability of air conditioner operation.
According to some embodiments of the present invention, the value range of t5 is：50 minutes≤t5≤120 minute；The value model of t6
Enclosing is：10 minutes≤t6≤60 minute.By verification experimental verification, when meet 50 minutes≤t5≤120 minute, 10 minutes≤t6≤60
During minute, it can effectively prevent air conditioner from freezing damage, effectively protect air conditioner, extend the service life of air conditioner.
In some embodiments of the invention, second temperature T2 meets：- 15≤T2≤1 DEG C and T2 ＜ T1.Work as ambient temperature
During less than 1 DEG C, after air conditioner shuts down a period of time, start air conditioner and heating component operation a period of time by force, can be effective
Air conditioner is protected, prevents air conditioner from freezing damage, extends the service life of air conditioner.
Air conditioner 100 according to embodiments of the present invention is described in detail with three specific embodiments referring to Fig. 1-Fig. 6.
It is worth understanding, it is described below to be merely illustrative, rather than the concrete restriction to the present invention.
Embodiment one：
As shown in Figure 1, air conditioner 100 includes：Compressor 10, commutation valve group 20, outdoor heat exchanger 30, indoor heat exchanger
40th, chassis 50, heating branch 60 and oil eliminator 70.
Wherein, as shown in Figure 1, compressor 10 has exhaust outlet 110 and gas returning port 120, commutation valve group 20 has the first valve
The 210, second valve port 220 of mouth, the 3rd valve port 230 and the 4th valve port 240, the first valve port 210 are connected with exhaust outlet 110, the 4th valve
Mouthfuls 240 connect with gas returning port 120, and one end of outdoor heat exchanger 30 is connected with the second valve port 220, one end of indoor heat exchanger 40 and
The other end connection of outdoor heat exchanger 30, the other end of indoor heat exchanger 40 are connected with the 3rd valve port 230.
Oil eliminator 70 has air inlet, gas vent and liquid outlet, and air inlet is connected with exhaust outlet 110, and gas goes out
Mouthful connected with the first valve port 210, liquid outlet is connected with gas returning port 120, heat branch 60 one end be connected to gas vent with
Between first valve port 210.
As shown in Figure 3 and Figure 4, chassis 50 condenses in the condensation on outdoor heat exchanger 30 close to outdoor heat exchanger 30 with collection
Water.Chassis 50 is equipped with osculum 510, and osculum 510 is multiple for what is be spaced apart.Heating branch 60 is arranged on chassis 50 and is used to prevent bottom
Condensation water freezing in disk 50, with reference to shown in Fig. 1, heating branch 60 one end be connected to 110 and first valve port 210 of exhaust outlet it
Between, the other end of heating branch 60 is connected between 120 and the 4th valve port 240 of gas returning port.
As shown in Figure 1, heating branch 60 includes：Refrigerant pipe 610 and on-off element 620, on-off element 620 and refrigerant pipe
610 series connection.One end of on-off element 620 is connected with exhaust outlet 110, the other end of on-off element 620 and one end of refrigerant pipe 610
Connection, the other end of refrigerant pipe 610 are connected with gas returning port 120.
When air conditioner 100 is in refrigerating state, the first valve port 210 is connected with the second valve port 220, the 3rd valve port 230 with
4th valve port 240 connects.Thus, the refrigerant for the high temperature and pressure discharged from exhaust outlet 110, after 70 isolation of purified of oil eliminator
Commutation valve group 20 is flowed into, and is flowed into successively by the first valve port 210 and the second valve port 220 in outdoor heat exchanger 30.High temperature
High pressure refrigerant condensation heat in outdoor heat exchanger 30, the refrigerant temperature after heat exchange is carried out with outdoor environment to be reduced, low temperature
Refrigerant is flowed into indoor heat exchanger 40 from outdoor heat exchanger 30, and carries out heat exchange, low temperature refrigerant evaporation with indoor environment
Heat absorption, so as to fulfill the effect of indoor refrigeration.Refrigerant after the heat exchange of indoor heat exchanger 40 flows into passes through the 3rd valve port successively
230 and the 4th valve port 240, finally it is back to from gas returning port 120 in compressor 10, realizes circulating for refrigerant.
When air conditioner 100 is in heating state, the mode of communicating of switching commutation valve group 20, makes the first valve port 210 and the
Three valve ports 230 connect, and the second valve port 220 is connected with the 4th valve port 240.So that refrigerant is in outdoor heat exchanger 30 and indoor heat exchange
It is opposite when flow direction is with refrigerating state in device 40.As shown in Figure 1, the high temperature and pressure refrigerant discharged from exhaust outlet 110, by oil
Commutation valve group 20 is flowed into after 70 isolation of purified of separator, and enters room by the first valve port 210 and the 3rd valve port 230 successively
In interior heat exchanger 40, high temperature and pressure refrigerant condensation heat in heat exchanger 40 indoors, realizes heating indoor effect.Handed over by heat
Refrigerant after changing is flowed into outdoor heat exchanger 30 from indoor heat exchanger 40, and the evaporation endothermic in outdoor heat exchanger 30, refrigerant
Heat exchange is carried out with outdoor environment.Refrigerant after 30 heat exchange of outdoor heat exchanger finally passes through the second valve port 220 successively
With the 4th valve port 240, it is back to from gas returning port 120 in compressor 10.
Outdoor temperature is set as the first temperature T1, the first temperature T1 is 4 DEG C.When ambient temperature is more than 4 DEG C, heating
Branch is closed；When ambient temperature is less than or equal to 4 DEG C, and air conditioner is run 8-12 minutes or so, heats branch to start
10 minutes, close 60 minutes clocks for loop cycle progress.
When air conditioner enters defrost state, air conditioner detects the relation of ambient temperature and the first temperature T1 in real time, works as sky
When adjusting the ambient temperature of device detection to be less than or equal to the first temperature T1, after defrost starts 2 minutes, heating branch starts.
When ambient temperature is in shutdown status and the shutdown status duration was more than 60 minutes less than 1 DEG C of air conditioner,
Force start air conditioner and heating branch, run time after 15 minutes, shut down by air conditioner.
Thus, by setting the valve group 20 that commutates, heating or refrigeration work(that different valve ports realizes air conditioner 100 can be connected
Energy.Moreover, air conditioner 100 is equipped with heating branch 60, chassis 50 can be carried out using the high temperature refrigerant flowed out from compressor 10
Heating, prevents chassis 50 from freezing and influencing the heat transfer effect of outdoor heat exchanger 30, improves the stability of the operation of air conditioner 100.
Moreover, the refrigerant in heating branch 60 can be back in compressor 10 and be reused, energy-saving consumption-reducing, makes air conditioner 100
Energy be fully utilized.
Embodiment two：
As shown in Fig. 2, what is different from the first embodiment is that in this embodiment, one end and the exhaust outlet 110 of refrigerant pipe 610
Connection, the other end of refrigerant pipe 610 are connected with one end of on-off element 620, the other end and the gas returning port 120 of on-off element 620
Connection.Thus, it is possible to improve the diversity that heating branch 60 designs.
Embodiment three：
As shown in Figure 5 and Figure 6, what is different from the first embodiment is that in this embodiment, heating the refrigerant pipe 610 of branch 60
Intert the osculum 510 on chassis 50 successively.Thus, the high temperature refrigerant in refrigerant pipe 610 can heat osculum 510,
Prevent condensed water from solidifying ice blockage osculum 510 at osculum 510 and influencing the drainage efficiency on chassis 50, or even influence room
The heat transfer effect of external heat exchanger 30, effectively increases the stability of the operation of air conditioner 100.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe
Structure, material or feature are contained at least one embodiment of the present invention or example.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can combine in an appropriate manner in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (23)
- A kind of 1. air conditioner, it is characterised in that including：Compressor, the compressor have exhaust outlet and gas returning port；Commutate valve group, and the commutation valve group has the first valve port, the second valve port, the 3rd valve port and the 4th valve port, first valve Mouth is connected with the exhaust outlet, and the 4th valve port is connected with the gas returning port；Outdoor heat exchanger, one end of the outdoor heat exchanger are connected with second valve port；Indoor heat exchanger, one end of the indoor heat exchanger are connected with the other end of the outdoor heat exchanger, the interior heat exchange The other end of device is connected with the 3rd valve port；Chassis, the chassis are equipped with osculum close to the outdoor heat exchanger, the chassis, and condensing in the outdoor with discharge changes Condensed water on hot device；For preventing the heating branch of the condensation water freezing in the chassis, the heating branch is arranged on the chassis, described to add One end of hot branch is connected between the exhaust outlet and first valve port, and the other end for heating branch is connected to described Between gas returning port and the 4th valve port；When the air conditioner is in refrigerating state, first valve port is connected with second valve port, the 3rd valve port with The 4th valve port connection；When the air conditioner is in heating state, first valve port is connected with the 3rd valve port, institute The second valve port is stated to connect with the 4th valve port.
- 2. air conditioner according to claim 1, it is characterised in that the heating branch is located in the chassis.
- 3. air conditioner according to claim 1, it is characterised in that the heating branch and the exterior bottom wall on the chassis connect Touch.
- 4. air conditioner according to claim 1, it is characterised in that the osculum is multiple for what is be spaced apart, multiple described The heating branch is equipped with least one in osculum.
- 5. air conditioner according to claim 1, it is characterised in that the heating branch is close to the osculum.
- 6. air conditioner according to claim 5, it is characterised in that the heating branch is located at the surface of the osculum Or underface.
- 7. air conditioner according to claim 1, it is characterised in that the heating branch includes：Refrigerant pipe；WithOn-off element, the on-off element and refrigerant pipe series connection.
- 8. air conditioner according to claim 7, it is characterised in that one end of the refrigerant pipe is connected with the exhaust outlet, The other end of the refrigerant pipe is connected with one end of the on-off element, and the other end of the on-off element connects with the gas returning port It is logical.
- 9. air conditioner according to claim 7, it is characterised in that one end of the on-off element connects with the exhaust outlet Logical, the other end of the on-off element is connected with one end of the refrigerant pipe, the other end of the refrigerant pipe and the gas returning port Connection.
- 10. air conditioner according to claim 7, it is characterised in that the on-off element is solenoid valve or electric expansion valve.
- 11. air conditioner according to claim 1, it is characterised in that the air conditioner further includes：Oil eliminator, the oil eliminator have air inlet, gas vent and liquid outlet, the air inlet and the exhaust outlet Connection, the gas vent are connected with first valve port, and the liquid outlet is connected with the gas returning port,One end of the heating branch is connected between the gas vent and first valve port.
- 12. a kind of control method of air conditioner, it is characterised in that the air conditioner is according to any one of claim 1-12 institute The air conditioner stated, set outdoor temperature includes as the first temperature T1, the control method：When ambient temperature is more than the first temperature T1, the heating branch is closed；When ambient temperature is less than or equal to the first temperature T1, and the air conditioner run t1 minutes after, described in startup Heat branch.
- 13. the control method of air conditioner according to claim 12, it is characterised in that the first temperature T1, meets：- 10℃≤T1≤4℃。
- 14. the control method of air conditioner according to claim 12, it is characterised in that the value range of the t1 is：8 points Clock≤t1≤12 minute.
- 15. the control method of air conditioner according to claim 12, it is characterised in that when ambient temperature is less than or equal to The first temperature T1 and it is described heating branch start when, it is described heating branch after t2 minute, it is described heating branch closing T3 minutes.
- 16. the control method of air conditioner according to claim 15, it is characterised in that the value range of the t2 is：10 Minute≤t2≤70 minute；The value range of the t3 is：10 minutes≤t3≤70 minute.
- 17. the control method of air conditioner according to claim 15, it is characterised in that when ambient temperature is less than or equal to The first temperature T1 and when the heating branch starts, the heating branch start with it is t2 minute described, close the t3 and divide Clock carries out for loop cycle.
- 18. the control method of air conditioner according to claim 12, it is characterised in that when the air conditioner enters defrost shape During state, after defrost starts t4 minutes, the heating branch starts.
- 19. the control method of air conditioner according to claim 17, it is characterised in that the value range of the t4 is：1 point Clock≤t4≤3 minute.
- 20. the control method of air conditioner according to claim 18, it is characterised in that when the air conditioner enters defrost shape During state, the air conditioner detects the relation of ambient temperature and the first temperature T1 in real time, when the external world of air conditioner detection When temperature is less than or equal to the first temperature T1, and after described t1 minutes of air conditioner operation, start the heating branch.
- 21. the control method of air conditioner according to claim 12, it is characterised in that set outdoor temperature as second temperature T2, when ambient temperature is less than the second temperature T2, the air conditioner is in shutdown status and shutdown status duration More than t5 minutes, air conditioner described in force start and the heating branch, run time after t6 minutes, shut down by the air conditioner.
- 22. the control method of air conditioner according to claim 21, it is characterised in that the value range of the t5 is：50 Minute≤t5≤120 minute；The value range of the t6 is：10 minutes≤t6≤60 minute.
- 23. the control method of air conditioner according to claim 21, it is characterised in that the first temperature T1, described Two temperature T2, meet：- 15 DEG C≤T2≤1 DEG C, and T2 ＜ T1.
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| CN108844266A (en) * | 2018-09-12 | 2018-11-20 | 珠海格力电器股份有限公司 | Air-conditioning system |
| CN109282542A (en) * | 2018-09-26 | 2019-01-29 | 珠海格力电器股份有限公司 | A kind of defrosting device, heat pump unit and control method |
| CN109631257A (en) * | 2018-12-14 | 2019-04-16 | 广东Tcl智能暖通设备有限公司 | Air conditioner and its control method, control device |
| CN109682018A (en) * | 2018-12-27 | 2019-04-26 | 广东美的暖通设备有限公司 | The control method of heating system, the control device of heating system and air conditioner |
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| CN110006154A (en) * | 2019-05-05 | 2019-07-12 | 珠海格力电器股份有限公司 | Thawing apparatus, air-conditioner outdoor unit and change ice control method |
| CN110360765A (en) * | 2019-07-11 | 2019-10-22 | 珠海格力电器股份有限公司 | Device, control method and the air-conditioning for preventing reversal valve liquid hammer |
| CN110360765B (en) * | 2019-07-11 | 2020-07-24 | 珠海格力电器股份有限公司 | Device for preventing liquid impact of reversing valve, control method and air conditioner |
| CN111750486A (en) * | 2020-06-17 | 2020-10-09 | 宁波奥克斯电气股份有限公司 | Control method and device for preventing internal machine from freezing and air conditioner |
| CN111750486B (en) * | 2020-06-17 | 2022-07-19 | 宁波奥克斯电气股份有限公司 | Control method and device for preventing indoor unit from freezing and air conditioner |
| CN115264984A (en) * | 2021-04-30 | 2022-11-01 | 芜湖美智空调设备有限公司 | Air conditioning system and control method thereof |
| CN113091200B (en) * | 2021-05-08 | 2022-04-19 | 宁波奥克斯电气股份有限公司 | Air conditioner and control method and device thereof |
| CN113091200A (en) * | 2021-05-08 | 2021-07-09 | 宁波奥克斯电气股份有限公司 | Air conditioner and control method and device thereof |
| CN113959064A (en) * | 2021-11-29 | 2022-01-21 | 广东积微科技有限公司 | Air conditioner and deicing method |
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Application publication date: 20180508 |