CN108088031A - Defrosting control method, multi-split air conditioner and the storage medium of multi-split air conditioner - Google Patents
Defrosting control method, multi-split air conditioner and the storage medium of multi-split air conditioner Download PDFInfo
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- CN108088031A CN108088031A CN201711254593.4A CN201711254593A CN108088031A CN 108088031 A CN108088031 A CN 108088031A CN 201711254593 A CN201711254593 A CN 201711254593A CN 108088031 A CN108088031 A CN 108088031A
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- air conditioner
- operating parameter
- split air
- heat exchanger
- exchanger tube
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Abstract
The invention discloses a kind of defrosting control methods of multi-split air conditioner, comprise the following steps：When receiving defrost signal, the electric expansion valve of the indoor unit of shutdown is controlled to be opened into default aperture；Obtain the operating parameter of air conditioner；Judge whether the operating parameter meets preset condition；When the operating parameter meets the preset condition, the air conditioner is controlled to carry out defrosting operation.The invention also discloses a kind of multi-split air conditioner and computer readable storage mediums.The present invention multi-split air conditioner carry out defrost before improve shut down in machine heat exchanger tube temperature, with evaporation shut down in machine heat exchanger tube on droplet, reduce shut down in machine heat exchanger tube on frost amount, solve shut down in machine noise problem.
Description
Technical field
The present invention relates to air conditioner technical field more particularly to a kind of defrosting control method of multi-split air conditioner, one to drag
Multi-air-conditioner and computer readable storage medium.
Background technology
One drags more air-conditionings, and in defrost, the electric expansion valve of machine can be opened in shutdown, and substantial amounts of low temperature refrigerant causes to shut down
Frosting on the heat exchanger of interior machine.After defrost, the frost in shutdown on the heat exchanger of machine is melted under the action of high temperature refrigerant
Droplet, but since the wind turbine of machine in shutdown is not opened, droplet is difficult evaporation.In this way, after defrost several times, the heat exchange of machine in shutdown
The droplet accumulated on device is more, carries out defrost again in this case so that droplet is frozen into frost, and frost is received to the cold with heat exchanger
Contracting one works and can generate larger noise, and after defrost, frost works with heat exchanger heat expansion one also can
Generate larger noise.
The content of the invention
It is a primary object of the present invention to provide a kind of defrosting control method of multi-split air conditioner, multi-split air conditioner with
And computer readable storage medium, it is intended to multi-split air conditioner improves the heat exchanger tube temperature of machine in shutdown before carrying out defrost, with
Evaporation shut down in machine heat exchanger tube on droplet, reduce the frost amount on the heat exchanger tube of machine in shutting down, solve to shut down in machine make an uproar
Mail is inscribed.
To achieve the above object, the present invention provides a kind of defrosting control method of multi-split air conditioner, and described one drags mostly sky
The defrosting control method of device is adjusted to comprise the following steps：
When receiving defrost signal, the electric expansion valve of the indoor unit of shutdown is controlled to be opened into default aperture；
Obtain the operating parameter of air conditioner；
Judge whether the operating parameter meets preset condition；
When the operating parameter meets the preset condition, the air conditioner is controlled to carry out defrosting operation.
Preferably, the electric expansion valve for the indoor unit that the control is shut down is opened into before default aperture, is further included：
Judge whether the air conditioner has the indoor unit of shutdown；
When there is the indoor unit of shutdown, perform it is described control shut down indoor unit electric expansion valve be opened into it is default
The step of aperture；
In the indoor unit of no shutdown, then the air conditioner is controlled to carry out defrosting operation.
Preferably, the electric expansion valve for the indoor unit that the control is shut down is opened into default aperture and the acquisition air-conditioning
Between the step of operating parameter of device, including：
The frequency of the compressor of the air conditioner is adjusted to predeterminated frequency.
Preferably, it is described to judge that the step of whether operating parameter meets preset condition includes：
Determine whether that the indoor heat exchanger tube temperature for the indoor unit shut down is more than default heat exchanger tube temperature, wherein,
When the indoor heat exchanger tube temperature for having the indoor unit of shutdown is more than the default heat exchanger tube temperature, judge that the operating parameter expires
The foot preset condition.
Preferably, it is described to judge that the step of whether operating parameter meets preset condition includes：
Judge whether the delivery temperature of the compressor is more than default delivery temperature, wherein, in the exhaust of the compressor
When temperature is more than the default delivery temperature, judge that the operating parameter meets the preset condition.
Preferably, it is described to judge that the step of whether operating parameter meets preset condition includes：
Judge whether the high side pressure of the compressor is more than preset pressure, wherein, in the high-pressure side of the compressor
When pressure is more than the preset pressure, judge that the operating parameter meets the preset condition.
Preferably, it is described to judge that the step of whether operating parameter meets preset condition includes：
Judge whether the run time that the compressor is run with the predeterminated frequency is more than preset time, wherein, in institute
When stating the run time that compressor is run with the predeterminated frequency and being more than the preset time, judge that the operating parameter meets institute
State preset condition.
To achieve the above object, the present invention also provides a kind of multi-split air conditioner, the multi-split air conditioner includes：
Memory, processor and it is stored in the multi-split air conditioner that can be run on the memory and on the processor
Defrosting control program, realize when the defrosting control program of the multi-split air conditioner is performed by the processor and drag such as above-mentioned one
The step of defrosting control method of multi-air-conditioner.
To achieve the above object, the present invention also provides a kind of computer readable storage medium, the computer-readable storages
The defrosting control program of multi-split air conditioner is stored on medium, the defrosting control program of the multi-split air conditioner is by processor
The step of defrosting control method such as above-mentioned multi-split air conditioner is realized during execution.
Defrosting control method, multi-split air conditioner and the computer-readable storage medium of multi-split air conditioner provided by the invention
Matter when receiving defrost signal, controls the electric expansion valve of the indoor unit of shutdown to be opened into default aperture, then obtains air-conditioning
The operating parameter of device, and judge whether operating parameter meets preset condition, when operating parameter meets the preset condition, control
The air conditioner carries out defrosting operation.The present invention improves the heat exchange tube temperature of machine in shutdown before multi-split air conditioner carries out defrost
Degree to evaporate the droplet in shutdown on the heat exchanger tube of machine, reduces the frost amount on the heat exchanger tube of machine in shutting down, solves machine in shutdown
Noise problem.
Description of the drawings
Fig. 1 is the hardware running environment schematic diagram for the terminal that the embodiment of the present invention is related to；
Fig. 2 is the flow diagram of the defrosting control method first embodiment of multi-split air conditioner of the present invention；
Fig. 3 is the flow diagram of the defrosting control method second embodiment of multi-split air conditioner of the present invention；
Fig. 4 is the flow diagram of the defrosting control method 3rd embodiment of multi-split air conditioner of the present invention；
Fig. 5 is to judge whether operating parameter meets the refinement flow diagram of preset condition in the present invention；
Fig. 6 is to judge whether operating parameter meets the refinement flow diagram of preset condition in the present invention；
Fig. 7 is to judge whether operating parameter meets the refinement flow diagram of preset condition in the present invention；
Fig. 8 is to judge whether operating parameter meets the refinement flow diagram of preset condition in the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of defrosting control method of multi-split air conditioner, and the premise of defrost is carried out in multi-split air conditioner
The heat exchanger tube temperature of machine in height shutdown with the droplet on the heat exchanger tube of machine in evaporation shutdown, is reduced in shutting down on the heat exchanger tube of machine
Frost amount, solve shut down in machine noise problem.
As shown in Figure 1, the hardware running environment schematic diagram for the terminal that Fig. 1, which is the embodiment of the present invention, to be related to；
Terminal of the embodiment of the present invention is air conditioner.
As shown in Figure 1, the terminal can include：Processor 1001, such as CPU, network interface 1004, user interface
1003, memory 1005, communication bus 1002.Wherein, communication bus 1002 is used to implement the connection communication between these components.
User interface 1003 can include display screen (Display), input unit such as keyboard (Keyboard), optional user interface
1003 can also include standard wireline interface and wireless interface.Network interface 1004 can optionally connect including the wired of standard
Mouth, wireless interface (such as memory (non-volatile memory), such as magnetic disk storage.Memory 1005 optionally may be used also
To be independently of the storage device of aforementioned processor 1001.
It, can be with it will be understood by those skilled in the art that the restriction of the structure of the terminal shown in Fig. 1 not structure paired terminal
Including either combining some components or different components arrangement than illustrating more or fewer components.
As shown in Figure 1, it can lead to as in a kind of memory 1005 of computer storage media including operating system, network
Believe the defrosting control program of module, Subscriber Interface Module SIM and multi-split air conditioner.
In terminal shown in Fig. 1, network interface 1004 is mainly used for connecting background server, is carried out with background server
Data communication；User interface 1003 is mainly used for connecting client (user terminal), with client into row data communication；And processor
1001 can be used for the control program for calling the indoor fan of the air conditioner stored in memory 1005, and perform following operation：
When receiving defrost signal, the electric expansion valve of the indoor unit of shutdown is controlled to be opened into default aperture；
Obtain the operating parameter of air conditioner；
Judge whether the operating parameter meets preset condition；
When the operating parameter meets the preset condition, the air conditioner is controlled to carry out defrosting operation.
Further, processor 1001 can call the defrosting control journey of the multi-split air conditioner stored in memory 1005
Sequence also performs following operation：
Judge whether the air conditioner has the indoor unit of shutdown；
When there is the indoor unit of shutdown, perform it is described control shut down indoor unit electric expansion valve be opened into it is default
The step of aperture；
In the indoor unit of no shutdown, then the air conditioner is controlled to carry out defrosting operation.
Further, processor 1001 can call the defrosting control journey of the multi-split air conditioner stored in memory 1005
Sequence also performs following operation：
The frequency of the compressor of the air conditioner is adjusted to predeterminated frequency.
Further, processor 1001 can call the defrosting control journey of the multi-split air conditioner stored in memory 1005
Sequence also performs following operation：
Determine whether that the indoor heat exchanger tube temperature for the indoor unit shut down is more than default heat exchanger tube temperature, wherein,
When the indoor heat exchanger tube temperature for having the indoor unit of shutdown is more than the default heat exchanger tube temperature, judge that the operating parameter expires
The foot preset condition.
Further, processor 1001 can call the defrosting control journey of the multi-split air conditioner stored in memory 1005
Sequence also performs following operation：
Judge whether the delivery temperature of the compressor is more than default delivery temperature, wherein, in the exhaust of the compressor
When temperature is more than the default delivery temperature, judge that the operating parameter meets the preset condition.
Further, processor 1001 can call the defrosting control journey of the multi-split air conditioner stored in memory 1005
Sequence also performs following operation：
Judge whether the high side pressure of the compressor is more than preset pressure, wherein, in the high-pressure side of the compressor
When pressure is more than the preset pressure, judge that the operating parameter meets the preset condition.
Further, processor 1001 can call the defrosting control journey of the multi-split air conditioner stored in memory 1005
Sequence also performs following operation：
Judge whether the run time that the compressor is run with the predeterminated frequency is more than preset time, wherein, in institute
When stating the run time that compressor is run with the predeterminated frequency and being more than the preset time, judge that the operating parameter meets institute
State preset condition.
With reference to Fig. 2, in the first embodiment, the defrosting control method of the multi-split air conditioner includes：
Step S10, when receiving defrost signal, the electric expansion valve of the indoor unit of shutdown is controlled to be opened into default open
Degree；
In the present embodiment, when receiving defrost signal, first determine whether air conditioner has the indoor unit of shutdown, stop having
During the indoor unit of machine, then the electric expansion valve of the indoor unit of shutdown is controlled to be opened into default aperture.This is because the interior of start
Machine is in heating state, and indoor heat exchanger tube temperature is higher, and the indoor unit temperature shut down is approached with room temperature, so in air conditioner
During defrost, substantial amounts of low temperature refrigerant causes frosting on the indoor heat exchanger tube for the indoor unit shut down, and by the electricity of the indoor unit of shutdown
Sub- expansion valve is opened into default aperture, and high-temperature gas refrigerant can be made to flow through the indoor unit of shutdown, so as to heat the room of indoor unit
Interior heat exchanger tube.It should be noted that default aperture can be maximum opening.
Step S20, the operating parameter of air conditioner is obtained；
In the present embodiment, the operating parameter of air conditioner can be the indoor heat exchanger tube temperature for the indoor unit shut down, compressor
Delivery temperature, the high side pressure of compressor and the run time run with the predeterminated frequency of compressor.Wherein, preset
The effect of frequency is to ensure the rate of defrost, can be configured according to practical application, such as 60Hz, and the present invention does not do specific
It limits.
Step S30, judge whether the operating parameter meets preset condition；
Step S40, when the operating parameter meets the preset condition, the air conditioner is controlled to carry out defrosting operation.
When getting operating parameter, judge whether operating parameter meets preset condition.Specifically, judge to shut down interior machine
Whether indoor heat exchanger tube temperature is more than default heat exchanger tube temperature, judges whether the delivery temperature of compressor is more than default exhaust temperature
Degree, judges whether the high side pressure of compressor is more than preset pressure and judges the operation that compressor is run with predeterminated frequency
Whether the time is more than preset time, wherein, the indoor heat exchanger tube temperature of machine is more than default heat exchanger tube temperature, compressor in shutdown
Delivery temperature be more than default delivery temperature, the high side pressure of compressor is more than preset pressure, compressor is transported with predeterminated frequency
When capable run time is more than preset time this four conditions and meets one of them, then judge that operating parameter meets preset condition,
Certainly, meet two of which, three or it is whole when, operating parameter is also to meet preset condition.It is it should be noted that default
Heat exchanger tube temperature, default delivery temperature, preset pressure and preset time this four parameter presets can according to actual conditions into
Row is set, and the present invention is not specifically limited.
In the first embodiment, when receiving defrost signal, the electric expansion valve of the indoor unit of shutdown is controlled to be opened into
Default aperture, then obtains the operating parameter of air conditioner, and judges whether operating parameter meets preset condition, expires in operating parameter
During the foot preset condition, the air conditioner is controlled to carry out defrosting operation.In this way, carry out the premise of defrost in multi-split air conditioner
The heat exchanger tube temperature of machine in height shutdown with the droplet on the heat exchanger tube of machine in evaporation shutdown, is reduced in shutting down on the heat exchanger tube of machine
Frost amount, solve shut down in machine noise problem.
In a second embodiment, as shown in figure 3, on the basis of above-mentioned embodiment shown in Fig. 2, the room of the control shutdown
The electric expansion valve of interior machine is opened into before default aperture, is further included：
Step S50, judge whether the air conditioner has the indoor unit of shutdown；
Step S60, when there is the indoor unit of shutdown, the electric expansion valve for performing the indoor unit that the control is shut down is opened
The step of opening to default aperture；
Step S70, in the indoor unit of no shutdown, then the air conditioner is controlled to carry out defrosting operation.
In the present embodiment, when receiving defrost signal, first determine whether air conditioner has the indoor unit of shutdown, stop having
During the indoor unit of machine, then the electric expansion valve of the indoor unit of shutdown is controlled to be opened into default aperture.This is because the interior of start
Machine is in heating state, and indoor heat exchanger tube temperature is higher, and the indoor unit temperature shut down is approached with room temperature, so in air conditioner
During defrost, substantial amounts of low temperature refrigerant causes frosting on the indoor heat exchanger tube for the indoor unit shut down, and by the electricity of the indoor unit of shutdown
Sub- expansion valve is opened into default aperture, and high-temperature gas refrigerant can be made to flow through the indoor unit of shutdown, so as to heat the room of indoor unit
Interior heat exchanger tube.It should be noted that default aperture can be maximum opening.
In the present embodiment, in the indoor unit of no shutdown, then directly control air conditioner and carry out defrosting operation.This is because
The indoor unit of start is in heating state, and indoor heat exchanger tube temperature is higher.
In a second embodiment, first determine whether air conditioner has the indoor unit of shutdown, there is the indoor unit of shutdown
When, when there is the indoor unit of shutdown, then the electric expansion valve of the indoor unit of shutdown is controlled to be opened into default aperture, do not shut down
Indoor unit when, then air conditioner is controlled directly to carry out defrosting operation.Stop in this way, being improved before multi-split air conditioner carries out defrost
The heat exchanger tube temperature of machine in machine solves the noise problem of machine in shutting down.
In the third embodiment, it is described as shown in figure 4, on the basis of the embodiment shown in above-mentioned Fig. 2 to any one of Fig. 3
Control shut down indoor unit electric expansion valve be opened into default aperture and it is described obtain air conditioner operating parameter the step of
Between, including：
Step S80, the frequency of the compressor of the air conditioner is adjusted to predeterminated frequency.
In the third embodiment, after the electric expansion valve for the indoor unit shut down in control is opened into default aperture, adjustment is empty
The compressor frequency of device is adjusted to predeterminated frequency, wherein, the effect of predeterminated frequency is to ensure the indoor heat exchanger tube temperature of machine in shutdown
Climbing speed, to ensure the efficiency of defrost, can be configured according to practical application, such as 60Hz, the present invention, which is not done, to be had
Body limits.After frequency to the predeterminated frequency of adjustment compressor, then obtain the indoor heat exchanger tube temperature of machine in the shutdown of air conditioner,
The run time that the delivery temperature of compressor, the high side pressure of compressor and compressor are run with the predeterminated frequency.
In the third embodiment, after the electric expansion valve for the indoor unit shut down in control is opened into default aperture, adjustment is empty
The compressor frequency of device is adjusted to the operating parameter of predeterminated frequency, then acquisition air conditioner.This way it is ensured that shut down in machine interior
The climbing speed of heat exchanger tube temperature, so as to ensure that the efficiency of defrost, the frosting for avoiding the indoor heat exchanger tube of machine in shutting down is asked
Topic.
In the fourth embodiment, as shown in figure 5, on the basis of above-mentioned Fig. 2 to embodiment shown in Fig. 4, the judgement institute
Stating the step of whether operating parameter meets preset condition includes：
Step S31, determine whether that the indoor heat exchanger tube temperature for the indoor unit shut down is more than default heat exchanger tube temperature,
Wherein, when the indoor heat exchanger tube temperature for the indoor unit for having shutdown is more than the default heat exchanger tube temperature, the fortune is judged
Row parameter meets the preset condition.
In the present embodiment, the indoor heat exchanger tube temperature of the indoor unit of shutdown is detected.It should be noted that it shuts down
Indoor unit may have multiple, be more than default heat exchanger tube temperature in the indoor heat exchanger tube temperature for the indoor unit for having at least one shutdown
When, that is, judge that operating parameter meets preset condition.This is because the heat exchanger tube temperature of multiple indoor units of multi-split air conditioner is all
Relatively, when the indoor heat exchanger tube temperature of machine is more than default heat exchanger tube temperature in there are one shutdown, others shut down in machine
Indoor heat exchanger tube temperature will not to be necessarily less than default heat exchanger tube temperature too many.If the indoor heat exchange of machine in all shutdown
Tube temperature degree is all higher than carrying out defrosting operation again during default heat exchanger tube temperature, and the indoor heat exchanger tube temperature of indoor unit may all compare at this time
Higher, this is unfavorable for the stabilization and reliability of air-conditioning system.
It should be noted that default heat exchanger tube temperature is configured according to actual conditions, the present invention is not specifically limited.
In the fourth embodiment, determine whether that the indoor heat exchanger tube temperature for the indoor unit shut down is more than default heat exchange tube temperature
When the indoor heat exchanger tube temperature for the indoor unit for having shutdown is more than default heat exchanger tube temperature, it is default to judge that operating parameter meets for degree
Condition.In this way, the heat exchanger tube temperature of machine in shutdown is not only improved before control air conditioner carries out defrost, to avoid machine in shutdown
Indoor heat exchanger tube frosting problem, and ensure that the stabilization and reliability of system.
In the 5th embodiment, as shown in fig. 6, on the basis of above-mentioned embodiment shown in Fig. 2 to Fig. 5, the judgement institute
Stating the step of whether operating parameter meets preset condition includes：
Step S32, judge whether the delivery temperature of the compressor is more than default delivery temperature, wherein, in the compression
When the delivery temperature of machine is more than the default delivery temperature, judge that the operating parameter meets the preset condition.
In the present embodiment, the delivery temperature of compressor is detected, is more than default row in the delivery temperature of compressor
When temperature is spent, then judge that operating parameter meets preset condition.This is because the delivery temperature in compressor is more than default exhaust temperature
When spending, even if the indoor heat exchanger tube temperature of machine is more than default heat exchanger tube temperature in shutting down not yet, but in shutting down machine interior
It is too many that heat exchanger tube temperature will not be less than default heat exchanger tube temperature.When delivery temperature is more than default delivery temperature, in order to avoid
Excessive discharge temperature damages air conditioner, ensures the ability and reliability of air-conditioning system, and control air conditioner carries out defrosting operation.
It should be noted that default delivery temperature is configured according to actual conditions, the present invention is not specifically limited.
In the 5th embodiment, judge whether the delivery temperature of compressor is more than default delivery temperature, wherein, it is compressing
When the delivery temperature of machine is more than default delivery temperature, then judge that operating parameter meets preset condition.In this way, not only in control air-conditioning
Device improves before carrying out defrost shut down in machine heat exchanger tube temperature, to avoid the frosting problem of the indoor heat exchanger tube of machine in shutdown,
And it ensure that the ability and reliability of system.
In the sixth embodiment, as shown in fig. 7, on the basis of above-mentioned Fig. 2 to the embodiment shown in Fig. 6, the judgement institute
Stating the step of whether operating parameter meets preset condition includes：
Step S33, judge whether the high side pressure of the compressor is more than preset pressure, wherein, in the compressor
High side pressure be more than the preset pressure when, judge that the operating parameter meets the preset condition.
In the present embodiment, the high side pressure of compressor is detected, be more than in the high side pressure of compressor pre-
If during pressure, then judge that operating parameter meets preset condition.This is because the high side pressure in compressor is more than preset pressure
When, even if the indoor heat exchanger tube temperature of machine is more than default heat exchanger tube temperature in shutting down not yet, but the interior of machine is changed in shutting down
It is too many that heat pipe temperature will not be less than default heat exchanger tube temperature.When the high side pressure of compressor is more than preset pressure, in order to
Ensure the ability and reliability of air-conditioning system, hypertonia is avoided to damage air conditioner, at this time air conditioner is controlled to carry out defrosting operation.
It should be noted that preset pressure is configured according to actual conditions, the present invention is not specifically limited.
In the sixth embodiment, judge whether the high side pressure of compressor is more than preset pressure, in the high pressure of compressor
When lateral pressure is more than preset pressure, judge that operating parameter meets the preset condition.In this way, not only in control air conditioner
The heat exchanger tube temperature of machine in shutting down is improved before frost, to avoid the frosting problem of the indoor heat exchanger tube of machine in shutdown, and is ensured
The ability and reliability of system.
In the seventh embodiment, as shown in figure 8, on the basis of above-mentioned Fig. 2 to embodiment shown in Fig. 7, the judgement institute
Stating the step of whether operating parameter meets preset condition includes：
Step S34, judge whether the run time that the compressor is run with the predeterminated frequency is more than preset time,
In, when the run time that the compressor is run with the predeterminated frequency is more than the preset time, judge the operation ginseng
Number meets the preset condition.
In the present embodiment, compressor is detected with the run time that the predeterminated frequency is run, compressor with
When the run time of the predeterminated frequency operation is more than preset time, then judge that operating parameter meets preset condition.This is because
When the run time that compressor is run with the predeterminated frequency is more than preset time, even if the indoor heat exchange there are no machine in shutting down
Tube temperature degree is more than default heat exchanger tube temperature, but the indoor heat exchanger tube temperature of machine will not be less than default heat exchanger tube temperature in shutting down
Too much.When the run time that compressor is run with predeterminated frequency is more than preset time, in order to avoid air conditioner long-play
Heating capacity is caused to decline, so as to influence the efficiency of air-conditioning system, therefore air conditioner is controlled to carry out defrosting operation.
Wherein, preset time is configured according to actual conditions, and the present invention is not specifically limited.
In the seventh embodiment, when judging whether the run time that compressor is run with the predeterminated frequency is more than default
Between, when the run time that compressor is run with the predeterminated frequency is more than preset time, it is described pre- to judge that operating parameter meets
If condition.In this way, the heat exchanger tube temperature of machine in shutdown is not only improved before control air conditioner carries out defrost, to avoid in shutdown
The frosting problem of the indoor heat exchanger tube of machine, and ensure that the efficiency of system.
The present invention also provides a kind of multi-split air conditioner, the multi-split air conditioner includes：The defrost of multi-split air conditioner
Program is controlled, the defrosting control program of the multi-split air conditioner is arranged for carrying out following operation：
When receiving defrost signal, the electric expansion valve of the indoor unit of shutdown is controlled to be opened into default aperture；
Obtain the operating parameter of air conditioner；
Judge whether the operating parameter meets preset condition；
When the operating parameter meets the preset condition, the air conditioner is controlled to carry out defrosting operation.
Further, the defrosting control program configuration of the multi-split air conditioner also operates as follows to realize：
Judge whether the air conditioner has the indoor unit of shutdown；
When there is the indoor unit of shutdown, perform it is described control shut down indoor unit electric expansion valve be opened into it is default
The step of aperture；
In the indoor unit of no shutdown, then the air conditioner is controlled to carry out defrosting operation.
Further, the defrosting control program configuration of the multi-split air conditioner also operates as follows to realize：
The frequency of the compressor of the air conditioner is adjusted to predeterminated frequency.
Further, the defrosting control program configuration of the multi-split air conditioner also operates as follows to realize：
Determine whether that the indoor heat exchanger tube temperature for the indoor unit shut down is more than default heat exchanger tube temperature, wherein,
When the indoor heat exchanger tube temperature for having the indoor unit of shutdown is more than the default heat exchanger tube temperature, judge that the operating parameter expires
The foot preset condition.
Further, the defrosting control program configuration of the multi-split air conditioner also operates as follows to realize：
Judge whether the delivery temperature of the compressor is more than default delivery temperature, wherein, in the exhaust of the compressor
When temperature is more than the default delivery temperature, judge that the operating parameter meets the preset condition.
Further, the defrosting control program configuration of the multi-split air conditioner also operates as follows to realize：
Judge whether the high side pressure of the compressor is more than preset pressure, wherein, in the high-pressure side of the compressor
When pressure is more than the preset pressure, judge that the operating parameter meets the preset condition.
Further, the defrosting control program configuration of the multi-split air conditioner also operates as follows to realize：
Judge whether the run time that the compressor is run with the predeterminated frequency is more than preset time, wherein, in institute
When stating the run time that compressor is run with the predeterminated frequency and being more than the preset time, judge that the operating parameter meets institute
State preset condition.
Multi-split air conditioner provided by the invention, when receiving defrost signal, the electronics for controlling the indoor unit of shutdown is swollen
Swollen valve is opened into default aperture, then obtains the operating parameter of air conditioner, and judges whether operating parameter meets preset condition,
When operating parameter meets the preset condition, the air conditioner is controlled to carry out defrosting operation.The present invention multi-split air conditioner into
The heat exchanger tube temperature of machine in shutting down is improved before row defrost, with the droplet on the heat exchanger tube of machine in evaporation shutdown, is reduced in shutting down
Frost amount on the heat exchanger tube of machine solves the noise problem of machine in shutting down.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored on the computer readable storage medium
There is the defrosting control program of multi-split air conditioner, the defrosting control program of the multi-split air conditioner is executed by processor realization such as
Lower operation：
When receiving defrost signal, the electric expansion valve of the indoor unit of shutdown is controlled to be opened into default aperture；
Obtain the operating parameter of air conditioner；
Judge whether the operating parameter meets preset condition；
When the operating parameter meets the preset condition, the air conditioner is controlled to carry out defrosting operation.
Further, following operation is also realized when the defrosting control program of the multi-split air conditioner is executed by processor：
Judge whether the air conditioner has the indoor unit of shutdown；
When there is the indoor unit of shutdown, perform it is described control shut down indoor unit electric expansion valve be opened into it is default
The step of aperture；
In the indoor unit of no shutdown, then the air conditioner is controlled to carry out defrosting operation.
Further, following operation is also realized when the defrosting control program of the multi-split air conditioner is executed by processor：
The frequency of the compressor of the air conditioner is adjusted to predeterminated frequency.
Further, following operation is also realized when the defrosting control program of the multi-split air conditioner is executed by processor：
Determine whether that the indoor heat exchanger tube temperature for the indoor unit shut down is more than default heat exchanger tube temperature, wherein,
When the indoor heat exchanger tube temperature for having the indoor unit of shutdown is more than the default heat exchanger tube temperature, judge that the operating parameter expires
The foot preset condition.
Further, following operation is also realized when the defrosting control program of the multi-split air conditioner is executed by processor：
Judge whether the delivery temperature of the compressor is more than default delivery temperature, wherein, in the exhaust of the compressor
When temperature is more than the default delivery temperature, judge that the operating parameter meets the preset condition.
Further, following operation is also realized when the defrosting control program of the multi-split air conditioner is executed by processor：
Judge whether the high side pressure of the compressor is more than preset pressure, wherein, in the high-pressure side of the compressor
When pressure is more than the preset pressure, judge that the operating parameter meets the preset condition.
Further, following operation is also realized when the defrosting control program of the multi-split air conditioner is executed by processor：
Judge whether the run time that the compressor is run with the predeterminated frequency is more than preset time, wherein, in institute
When stating the run time that compressor is run with the predeterminated frequency and being more than the preset time, judge that the operating parameter meets institute
State preset condition.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme substantially in other words does the prior art
Going out the part of contribution can be embodied in the form of software product, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disc, CD), used including some instructions so that a station terminal equipment (can be TV
Machine, mobile phone, computer, server, air conditioner or network equipment etc.) perform method described in each embodiment of the present invention.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (9)
- A kind of 1. defrosting control method of multi-split air conditioner, which is characterized in that the defrosting control side of the multi-split air conditioner Method comprises the following steps：When receiving defrost signal, the electric expansion valve of the indoor unit of shutdown is controlled to be opened into default aperture；Obtain the operating parameter of air conditioner；Judge whether the operating parameter meets preset condition；When the operating parameter meets the preset condition, the air conditioner is controlled to carry out defrosting operation.
- 2. the defrosting control method of multi-split air conditioner as described in claim 1, which is characterized in that the room that the control is shut down The electric expansion valve of interior machine is opened into before default aperture, is further included：Judge whether the air conditioner has the indoor unit of shutdown；When there is the indoor unit of shutdown, the electric expansion valve for performing the indoor unit that the control is shut down is opened into default aperture The step of；In the indoor unit of no shutdown, then the air conditioner is controlled to carry out defrosting operation.
- 3. the defrosting control method of multi-split air conditioner as described in claim 1, which is characterized in that the room that the control is shut down The electric expansion valve of interior machine be opened into default aperture and it is described obtain air conditioner operating parameter the step of between, including：The frequency of the compressor of the air conditioner is adjusted to predeterminated frequency.
- 4. such as the defrosting control method of claim 1-3 any one of them multi-split air conditioners, which is characterized in that the judgement The step of whether operating parameter meets preset condition includes：Determine whether that the indoor heat exchanger tube temperature for the indoor unit shut down is more than default heat exchanger tube temperature, wherein, stop having When the indoor heat exchanger tube temperature of the indoor unit of machine is more than the default heat exchanger tube temperature, judge that the operating parameter meets institute State preset condition.
- 5. such as the defrosting control method of claim 1-3 any one of them multi-split air conditioners, which is characterized in that the judgement The step of whether operating parameter meets preset condition includes：Judge whether the delivery temperature of the compressor is more than default delivery temperature, wherein, in the delivery temperature of the compressor During more than the default delivery temperature, judge that the operating parameter meets the preset condition.
- 6. such as the defrosting control method of claim 1-3 any one of them multi-split air conditioners, which is characterized in that the judgement The step of whether operating parameter meets preset condition includes：Judge whether the high side pressure of the compressor is more than preset pressure, wherein, in the high side pressure of the compressor During more than the preset pressure, judge that the operating parameter meets the preset condition.
- 7. such as the defrosting control method of claim 1-3 any one of them multi-split air conditioners, which is characterized in that the judgement The step of whether operating parameter meets preset condition includes：Judge whether the run time that the compressor is run with the predeterminated frequency is more than preset time, wherein, in the pressure When the run time that contracting machine is run with the predeterminated frequency is more than the preset time, it is described pre- to judge that the operating parameter meets If condition.
- 8. a kind of multi-split air conditioner, which is characterized in that the multi-split air conditioner includes memory, processor and is stored in institute State the defrosting control program for the multi-split air conditioner that can be run on memory and on the processor, the multi-split air conditioner Defrosting control program multi-split air conditioner as any one of claim 1 to 7 is realized when being performed by the processor Defrosting control method the step of.
- 9. a kind of computer readable storage medium, which is characterized in that be stored on the computer readable storage medium one drag it is more The defrosting control program of air conditioner realizes that right such as will when the defrosting control program of the multi-split air conditioner is executed by processor The step of seeking the defrosting control method of the multi-split air conditioner any one of 1 to 7.
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| CN108088031B (en) | 2021-02-26 |
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