CN108826599A - Control method for air-conditioning system - Google Patents
Control method for air-conditioning system Download PDFInfo
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- CN108826599A CN108826599A CN201810436786.XA CN201810436786A CN108826599A CN 108826599 A CN108826599 A CN 108826599A CN 201810436786 A CN201810436786 A CN 201810436786A CN 108826599 A CN108826599 A CN 108826599A
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- indoor unit
- temperature
- average value
- local environment
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The invention belongs to air-conditioning technical fields, and in particular to a kind of control method for air-conditioning system.Present invention seek to address that existing multi-online air-conditioning system cannot well control multiple indoor units, the heat transfer effect so as to cause part indoor unit is difficult to the problem of meeting user demand.For this purpose, the control method for air-conditioning system of the invention includes：Obtain the coil temperature of at least two indoor units；Calculate the average value of the coil temperature of at least two indoor unit；According to the average value of the coil temperature of the indoor unit and the coil temperature; selectively the degree of superheat of the indoor unit is adjusted; so that the air-conditioning system can effectively judge the case where indoor unit is with the presence or absence of ability surplus or scarce capacity by coil temperature, so that the heat transfer effect of the indoor unit is effectively ensured can meet user demand constantly.
Description
Technical field
The invention belongs to air-conditioning technical fields, and in particular to a kind of control method for air-conditioning system.
Background technique
With the continuous improvement of people's living standards, people also proposed increasingly higher demands to living environment.In order to
Comfortable environment temperature is maintained, air conditioner has become essential a kind of equipment in people's life.Normally, it is existing very much
The biggish place of area can all use the air-conditioning system of multi-connected machine, i.e., cooperated by an outdoor unit and multiple indoor units,
To realize the effect of refrigeration or heating.Meanwhile existing multi-online air-conditioning system is all by setting target superheat degree come to more
A indoor unit is controlled, and still, this control mode still has certain problems, it is difficult to meet user demand.
Specifically, existing air-conditioning system usually can all preset target superheat when carrying out indoor unit match control
Degree, then by controlling the aperture of electric expansion valve so that each indoor unit reaches target superheat degree；Alternatively, there are also part air-conditioning systems
System can select the different degrees of superheat according to the temperature range that different indoor units are set.But the mistake of these control methods setting
Temperature is all invariable, and during actual use, since different indoor units may have different structure and company
Connect mode, and different indoor units usually all have different loads, the ability so as to cause part indoor unit it is superfluous and also
The problem of some indoor unit capability deficiencies.
Correspondingly, this field needs the control method for air-conditioning system of one kind newly to solve the above problems.
Summary of the invention
It, cannot be right well in order to solve existing multi-online air-conditioning system in order to solve the above problem in the prior art
Multiple indoor units are controlled, and are difficult to the problem of meeting user demand so as to cause the heat transfer effect of part indoor unit, the present invention
A kind of control method for air-conditioning system is provided, the air-conditioning system includes multiple indoor units, and the control method includes：
Obtain the coil temperature of at least two indoor units；Calculate the average value of the coil temperature of at least two indoor unit；According to institute
The coil temperature of indoor unit and the average value of the coil temperature are stated, selectively the degree of superheat of the indoor unit is adjusted
It is whole.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according to the coil pipe temperature of the indoor unit
Degree and the coil temperature average value, selectively the degree of superheat of the indoor unit is adjusted " the step of specifically include：
The difference of the coil temperature of the indoor unit and the average value of the coil temperature is compared with the first preset range；According to
The comparison result of the difference of the average value of the coil temperature of the indoor unit and the coil temperature and first preset range,
Selectively the degree of superheat of the indoor unit is adjusted.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according to the coil pipe temperature of the indoor unit
The difference of the average value of degree and the coil temperature and the comparison result of first preset range, selectively to the interior
The degree of superheat of machine is adjusted " the step of specifically include：If the coil temperature of the indoor unit and the coil temperature is flat
The difference of mean value is not adjusted the degree of superheat of the indoor unit then in first preset range.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according to the coil pipe temperature of the indoor unit
The difference of the average value of degree and the coil temperature and the comparison result of first preset range, selectively to the interior
The degree of superheat of machine is adjusted " the step of specifically include：If the coil temperature of the indoor unit and the coil temperature is flat
The difference of mean value then obtains the temperature change of at least two indoor units local environment not in first preset range
Rate；According to the rate of temperature change of at least two indoor units local environment, selectively to the degree of superheat of the indoor unit into
Row adjustment.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according at least two indoor unit
The rate of temperature change of local environment is selectively adjusted the degree of superheat of the indoor unit " the step of specifically include：It calculates
The average value of the rate of temperature change of at least two indoor units local environment；By the temperature change of the indoor unit local environment
The ratio of the average value of rate and the rate of temperature change is compared with the second preset range；According to the indoor unit local environment
Rate of temperature change and the rate of temperature change average value ratio and second preset range comparison result, selectivity
Ground is adjusted the degree of superheat of the indoor unit.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according to the indoor unit local environment
Rate of temperature change and the rate of temperature change average value ratio and second preset range comparison result, selectivity
Ground is adjusted the degree of superheat of the indoor unit " the step of specifically include：If the temperature of the indoor unit local environment becomes
The ratio of the average value of rate and the rate of temperature change is in second preset range, then not to the overheat of the indoor unit
Degree is adjusted.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according to the indoor unit local environment
Rate of temperature change and the rate of temperature change average value ratio and second preset range comparison result, selectivity
Ground is adjusted the degree of superheat of the indoor unit " the step of specifically include：If the temperature of the indoor unit local environment becomes
The ratio of the average value of rate and the rate of temperature change is not in second preset range, then to the overheat of the indoor unit
Degree is adjusted.
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " at least two indoor units are being obtained
Before the step of coil temperature ", the control method further includes：Obtain the indoor unit local environment temperature and the air-conditioning
The target mean temperature of system；The temperature of the indoor unit local environment is compared with the target mean temperature；According to
The comparison result of the temperature of the indoor unit local environment and the target mean temperature selectively executes and " obtains at least two
The step of coil temperature of a indoor unit ".
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according to the indoor unit local environment
Temperature and the target mean temperature comparison result, selectively execute the coil temperatures of at least two indoor units " obtain "
The step of " the step of specifically include：Under cooling condition, if the temperature of the indoor unit local environment is less than or equal to described
Target mean temperature, then the step of not executing the coil temperatures of at least two indoor units " obtain ", directly to the indoor unit
The degree of superheat is adjusted；If the temperature of the indoor unit local environment is greater than the target mean temperature, executes and " obtain extremely
The step of coil temperature of few two indoor units ".
In the optimal technical scheme of the above-mentioned control method for air-conditioning system, " according to the indoor unit local environment
Temperature and the target mean temperature comparison result, selectively execute the coil temperatures of at least two indoor units " obtain "
The step of " the step of specifically include：Under heating condition, if the temperature of the indoor unit local environment is more than or equal to described
Target mean temperature, then the step of not executing the coil temperatures of at least two indoor units " obtain ", directly to the indoor unit
The degree of superheat is adjusted；If the temperature of the indoor unit local environment is less than the target mean temperature, executes and " obtain extremely
The step of coil temperature of few two indoor units ".
It will be appreciated to those of skill in the art that in the inventive solutions, air-conditioning system of the invention includes
Multiple indoor units, the control method for air-conditioning system of the invention include：Obtain the coil temperature of at least two indoor units；Meter
Calculate the average value of the coil temperature of at least two indoor unit；According to the coil temperature of the indoor unit and the coil temperature
Average value, selectively the degree of superheat of the indoor unit is adjusted, so that the air-conditioning system can pass through coil pipe temperature
It spends effectively to judge the case where indoor unit is with the presence or absence of ability surplus or scarce capacity, so that the interior be effectively ensured
The heat transfer effect of machine can meet user demand constantly.
Detailed description of the invention
Fig. 1 is the key step flow chart of the control method for air-conditioning system of the invention；
Fig. 2 is the specific steps flow chart of the control method for air-conditioning system of the invention.
Specific embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining technical principle of the invention, it is not intended that limit the scope of the invention.For example, although
Describe each step of method of the invention in the application according to particular order, but these be not sequentially it is restrictive,
Under the premise of without departing from basic principle of the invention, those skilled in the art can execute the step in a different order
Suddenly.
Based on the existing air-conditioning system proposed in background technique when carrying out indoor unit match control all can use it is constant not
The degree of superheat of change, and during actual use, since different indoor units may have different structure and connection type, and
And different indoor units usually all have different loads, the ability so as to cause part indoor unit is superfluous and there are also some indoor units
The problem of scarce capacity.The present invention provides a kind of control method for air-conditioning system, the air-conditioning system includes multiple rooms
Interior machine, and the air-conditioning system can be adjusted in real time based on the degree of superheat of multiple underlying parameters to different indoor units, with
Toilet, which states air-conditioning system, can timely and effectively judge the case where each indoor unit is with the presence or absence of ability surplus or scarce capacity,
User demand can be met constantly to which the heat transfer effect of each indoor unit be effectively ensured.
Specifically, in the preferred embodiment, the air-conditioning system includes controller, and each indoor unit includes
First temperature sensor and second temperature sensor；Wherein, first temperature sensor is for detecting locating for the indoor unit
The temperature of environment, the second temperature sensor are used to detect the coil temperature of the indoor unit.Meanwhile the controller can
The temperature information of first temperature sensor and second temperature sensor detection is obtained, and the controller can also
The rate of temperature change of different indoor unit local environments is calculated according to the temperature information that these get.In addition, the air-conditioning system
System further includes multiple electric expansion valves, and the controller can control the aperture of the electric expansion valve.Those skilled in the art
, it is understood that the description of these structures be not it is restrictive, technical staff can also according to actual use demand voluntarily
Set the specific structure of the air-conditioning system；It, can also be with for example, the controller can be the master controller of the air-conditioning system
It is the controller that technical staff is separately provided；As long as the air-conditioning system can run control method of the invention.
Referring next to Fig. 1, which is the key step flow chart of the control method for air-conditioning system of the invention.Such as figure
Shown in 1, control method of the invention mainly includes the following steps：
S1：Obtain the coil temperature of at least two indoor units；
S2：Calculate the average value of the coil temperature of at least two indoor units；
S3：According to the average value of the coil temperature of indoor unit and coil temperature, selectively to the degree of superheat of indoor unit into
Row adjustment.
Further, in step sl, the controller can obtain the coil temperature of at least two indoor units, with toilet
The coil temperature situation of change of multiple indoor units can be got by stating air-conditioning system.Then, step S2, i.e., the described controller are executed
The average value of the coil temperature of at least two indoor unit can be calculated according to the data got, so that the air-conditioning system
System can be by the coil temperature mean change situation of the multiple indoor units of data acquisition of multiple coil temperatures, so as to by coil pipe temperature
Degree mean change situation is effectively judged as exchange capability of heat of the reference standard to each indoor unit.Finally, step S3 is executed,
I.e. according to the average value of the coil temperature of the indoor unit and the coil temperature, selectively to the degree of superheat of the indoor unit
It is adjusted.
Specifically, the control method is using the average value of the coil temperature as reference standard, further according to each room
The average value of the coil temperature of interior machine and the coil temperature come judge respectively each indoor unit with the presence or absence of ability it is superfluous or
The problem of scarce capacity, so that the air-conditioning system can be to there are the overheats of scarce capacity or the indoor unit of ability overstock problem
Degree is adjusted, so that the exchange capability of heat of each indoor unit can match with the heat exchange demand of local environment, in turn
So that each indoor unit can more efficiently work, so that the air-conditioning system can farthest meet user's need
It asks.
Referring next to Fig. 2, which is the specific steps flow chart of the control method for air-conditioning system of the invention.It needs
Illustrate, control method of the invention will be said in case where the air-conditioning system runs refrigeration mode below
It is bright；Meanwhile although in the preferred embodiment, the air-conditioning system can obtain the operation data of each indoor unit, it is described
Air-conditioning system obviously can also only fetching portion indoor unit operation data.As shown in Fig. 2, control method of the invention
Specifically include the following steps：
S101：Obtain the temperature of indoor unit local environment and the target mean temperature of air-conditioning system；
S102：Judge whether the temperature of indoor unit local environment is greater than target mean temperature；If so, thening follow the steps
S104；If it is not, then executing step S103；
S103：Directly the degree of superheat of the indoor unit is adjusted；
S104：Obtain the coil temperature of each indoor unit；
S105：Calculate the average value of the coil temperature of all indoor units；
S106：Judge the difference of the coil temperature of the indoor unit and the average value of coil temperature whether in the first default model
In enclosing；If so, thening follow the steps S107；If it is not, then executing step S108；
S107：The degree of superheat of the indoor unit is not adjusted；
S108：Obtain the rate of temperature change of each indoor unit local environment；
S109：Calculate the average value of the rate of temperature change of all indoor unit local environments；
S110：Judge the rate of temperature change of the indoor unit local environment and the average value of rate of temperature change ratio whether
In the second preset range；If so, thening follow the steps S107；If it is not, then executing step S111；
S111：The degree of superheat of the indoor unit is adjusted.
It should be noted that in step s101, the calculating process of the target mean temperature is as follows：
Firstly, calculating the setting mean temperature of all indoor units：
Wherein, the air-conditioning system includes n indoor unit, TiIndicate the set temperature of i-th of indoor unit.
Then, the set temperature of each indoor unit and the difference of the setting mean temperature are calculated separately：
Finally, each indoor unit is corresponding | Δ Ti| it is compared with preset difference value, is when with preset difference value being 3 DEG C
Example：Will each indoor unit it is corresponding | Δ Ti| it is compared with 3 DEG C, if the indoor unit is corresponding | Δ Ti| 3 DEG C of >, then
This calculating is no longer participate in using the set temperature of the indoor unit as invalid value；If the indoor unit is corresponding | Δ Ti|≤3
DEG C, then this calculating is continued to participate in using the set temperature of the indoor unit as virtual value.Reusability above-mentioned steps are to remaining
Virtual value is calculated, until calculate the average value of all virtual values at this time when generating without invalid value, and by the average value
As target mean temperature.
It is understood that the calculating process of target mean temperature is exactly one in fact is similar to removal maximin
The process of average value is calculated, such calculation can effectively avoid target mean temperature by some excessively high set temperatures or mistake
The influence of low set temperature so that effectively obtaining most of user feels suitable temperature, and then effectively avoids the air-conditioning system
The problem of system influences overall heat exchange effect Wei meeting the needs of a few users, farthest to meet the system of most users
Cold demand.Certainly, the calculating process in this preferred embodiment is merely exemplary, and technical staff can also be according to actual use need
Ask the calculating process of sets itself target mean temperature or the numerical value of sets itself target mean temperature.
Further, in step s 102, by the temperature of the indoor unit local environment and the target mean temperature into
Row compares, effectively to judge whether the temperature of the indoor unit local environment has reached the temperature that most users feel suitable
Degree.If at this time the temperature of the indoor unit local environment already less than or be equal to the target mean temperature, illustrate described in
The refrigeration effect of indoor unit has reached the average level of the air-conditioning system；At this point, the mesh of the indoor unit can be tuned up suitably
The degree of superheat is marked, so that the air-conditioning system distributes less heat transferring medium to the indoor unit, so that the air-conditioning system
More heat transferring mediums can quickly be distributed in other insufficient indoor units of refrigerating capacity, and then air-conditioning described in efficient balance
The refrigeration effect of all indoor units in system, effectively to accelerate the integrally cooling speed of the air-conditioning system.Art technology
Personnel, it is understood that technical staff can the sets itself degree of superheat according to the actual situation single adjustment amount, and technology
Personnel can also simultaneously adjust accordingly other operating parameters of the indoor unit；For example, reducing the wind of the indoor unit
Machine revolving speed etc., the collocation of these adjustment modes are not restrictive.Meanwhile the if temperature of the indoor unit local environment at this time
Degree is greater than the target mean temperature, then illustrating the indoor unit, there may be the problems of refrigerating capacity deficiency；At this point, executing step
Rapid S104, so that the refrigeration situation to the indoor unit carries out further effectively judgement.
Further, in step S104, the coil temperature of each indoor unit in the air-conditioning system is obtained；And in step
In S105, the average value of the coil temperature of all indoor units is calculated.It should be noted that the present invention does not obtain the air-conditioning system
The mode of the indoor unit coil temperature is taken to impose any restrictions.Then, step S106 is executed, i.e., by the coil pipe temperature of the indoor unit
The difference of the average value of degree and the coil temperature is compared with the first preset range.In addition it is also necessary to explanation, technology
Personnel can the first preset range described in sets itself according to the actual situation；Preferably, first preset range is -2 DEG C to 2
℃；Meanwhile the control method obviously can also use the coil temperature of the indoor unit and the average value of the coil temperature
Ratio participate in judging.
It will be appreciated to those of skill in the art that the temperature of the indoor unit local environment can directly reflect the room
The refrigeration effect of interior machine, meanwhile, the coil temperature of the indoor unit can also reflect that the indoor unit is current to a certain extent
Refrigeration effect.Therefore, the difference of the average value of the coil temperature of the indoor unit and the coil temperature then represents the room
Departure between the coil temperature of interior machine and the average value.In other words, if the difference is in first preset range
It is interior, then illustrate average refrigeration effect of the refrigeration effect already close to the air-conditioning system of the indoor unit；At this point, executing step
S107 is not adjusted the degree of superheat of the indoor unit, so that the indoor unit keeps average refrigeration effect.Together
When, if the difference not in first preset range, illustrates the indoor unit, there may be ability surplus or abilities
Insufficient problem；At this point, execute step S108, so as to the air-conditioning system can according to later the step of further accurate judgement
The indoor unit is with the presence or absence of refrigerating capacity surplus or the problem of refrigerating capacity deficiency, so that the accuracy of judgement be effectively ensured.
Further, in step S108, the temperature change of each indoor unit local environment in the air-conditioning system is obtained
Rate；And in step S109, the average value of the rate of temperature change of all indoor unit local environments is calculated.It should be noted that this
The mode that invention does not obtain rate of temperature change to the air-conditioning system imposes any restrictions.Then, execute step S110, i.e., it will be described
The ratio of the average value of the rate of temperature change of indoor unit local environment and the rate of temperature change is compared with the second preset range
Compared with.In addition it is also necessary to explanation, technical staff can the second preset range described in sets itself according to the actual situation；It is preferred that
Ground, second preset range are 0.8 to 1.2；Meanwhile the control method obviously can also use ring locating for the indoor unit
The difference of the rate of temperature change in border and the average value of the rate of temperature change participates in judging.
It will be appreciated to those of skill in the art that the average value of the rate of temperature change represents the air-conditioning system
Average refrigerating speed；Therefore, the ratio of the average value of the rate of temperature change and rate of temperature change of environment described in the indoor unit
Value then represents the deviation ratio between the rate of temperature change and the average value.In other words, if the ratio is described second
In preset range, then illustrate average level of refrigeration of the refrigerating speed already close to the air-conditioning system of the indoor unit；At this point,
Step S107 is executed, i.e., the degree of superheat of the indoor unit is not adjusted, so that the indoor unit keeps average refrigerating speed
?.At the same time, if the ratio is not in second preset range, illustrating the indoor unit, there are ability surpluses
Or the case where scarce capacity；At this point, executing step S111, i.e., the degree of superheat of the indoor unit is adjusted.
Further, in step S111, if the difference is greater than the maximum value of first preset range, and
The ratio is less than the minimum value of second preset range, then illustrates that the indoor unit has refrigerating capacity deficiency；
At this point, the air-conditioning system can suitably reduce the target superheat degree of the indoor unit, and suitably increase the indoor unit pair
The aperture and rotation speed of fan for the electric expansion valve answered, to effectively improve the refrigerating capacity of the indoor unit, so that the room
Interior machine can fast implement preset refrigeration effect, thus the integrally cooling ability of air-conditioning system described in efficient balance.Meanwhile such as
Difference described in fruit is less than the minimum value of first preset range, and the ratio is greater than the maximum of second preset range
Value then illustrates that the indoor unit has refrigerating capacity surplus；At this point, the air-conditioning system can be by the indoor unit
Target superheat degree suitably increases, and suitably reduces the aperture and rotation speed of fan of the corresponding electric expansion valve of the indoor unit, from
And the indoor unit is made to maintain average level of refrigeration, so that the air-conditioning system can distribute more heat transferring mediums
It is used for indoor machine to enhance its refrigeration effect to other, and then the integrally cooling ability of the farthest balanced air-conditioning system.
It will be appreciated to those of skill in the art that when the air-conditioning system judges the indoor unit, there are scarce capacity or ability mistakes
When surplus problem, technical staff can refrigerating capacity with the specific adjustment mode of sets itself to change the indoor unit.
It should also be noted that, being in cooling condition not with the air-conditioning when the air-conditioning system is in heating condition
With, in step s 102, if the temperature of the indoor unit local environment is greater than or equal to the target mean temperature,
Step S103 is executed, i.e., directly the degree of superheat of the indoor unit is adjusted；Meanwhile if the indoor unit local environment
Temperature is less than the target mean temperature, thens follow the steps S104, so that the heating capacity to the indoor unit carries out further
Judgement.In addition, in step S111, if the difference is less than the minimum value of first preset range, and the ratio
Less than the minimum value of second preset range, then illustrate that the indoor unit has heating capacity deficiency；If described
Difference is greater than the maximum value of first preset range, and the ratio is greater than the maximum value of second preset range, then
Illustrate that the indoor unit has heating capacity surplus.
Finally, it should be noted that above-described embodiment is the preferred embodiments of the invention, it is not intended as to the present invention
The limitation of protection scope.Those skilled in the art can according to need when actually using the present invention and be properly added or delete one
Part steps, or exchange the sequence between different step.It is this to change not departing from basic principle of the invention, belong to this
The protection scope of invention.
So far, it has been combined attached drawing and describes the preferred embodiments of the invention, still, those skilled in the art are easy reason
Solution, protection scope of the present invention are expressly not limited to these specific embodiments.Before without departing from the principle of the present invention
It puts, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, after these changes or replacement
Technical solution will fall within the scope of protection of the present invention.
Claims (10)
1. a kind of control method for air-conditioning system, the air-conditioning system includes multiple indoor units, which is characterized in that the control
Method processed includes：
Obtain the coil temperature of at least two indoor units；
Calculate the average value of the coil temperature of at least two indoor unit；
According to the average value of the coil temperature of the indoor unit and the coil temperature, selectively to the overheat of the indoor unit
Degree is adjusted.
2. control method according to claim 1, which is characterized in that " according to the coil temperature of the indoor unit and described
The average value of coil temperature is selectively adjusted the degree of superheat of the indoor unit " the step of specifically include：
The difference of the coil temperature of the indoor unit and the average value of the coil temperature is compared with the first preset range；
According to the difference of the coil temperature of the indoor unit and the average value of the coil temperature and first preset range
Comparison result is selectively adjusted the degree of superheat of the indoor unit.
3. control method according to claim 2, which is characterized in that " according to the coil temperature of the indoor unit and described
The comparison result of the difference of the average value of coil temperature and first preset range, selectively to the overheat of the indoor unit
Degree be adjusted " the step of specifically include：
If the difference of the average value of the coil temperature of the indoor unit and the coil temperature in first preset range,
The degree of superheat of the indoor unit is not adjusted then.
4. control method according to claim 2, which is characterized in that " according to the coil temperature of the indoor unit and described
The comparison result of the difference of the average value of coil temperature and first preset range, selectively to the overheat of the indoor unit
Degree be adjusted " the step of specifically include：
If the difference of the average value of the coil temperature of the indoor unit and the coil temperature is not in first preset range
It is interior, then obtain the rate of temperature change of at least two indoor units local environment；
According to the rate of temperature change of at least two indoor units local environment, selectively to the degree of superheat of the indoor unit into
Row adjustment.
5. control method according to claim 4, which is characterized in that " according at least two indoor units local environment
Rate of temperature change, selectively the degree of superheat of the indoor unit is adjusted " the step of specifically include：
Calculate the average value of the rate of temperature change of at least two indoor units local environment；
The ratio of the rate of temperature change of the indoor unit local environment and the average value of the rate of temperature change is preset with second
Range is compared；
According to the ratio of the rate of temperature change of the indoor unit local environment and the average value of the rate of temperature change and described the
The comparison result of two preset ranges is selectively adjusted the degree of superheat of the indoor unit.
6. control method according to claim 5, which is characterized in that " become according to the temperature of the indoor unit local environment
The comparison result of the ratio of the average value of rate and the rate of temperature change and second preset range, selectively to described
The degree of superheat of indoor unit is adjusted " the step of specifically include：
If the ratio of the average value of the rate of temperature change and rate of temperature change of the indoor unit local environment is described
In two preset ranges, then the degree of superheat of the indoor unit is not adjusted.
7. control method according to claim 5, which is characterized in that " become according to the temperature of the indoor unit local environment
The comparison result of the ratio of the average value of rate and the rate of temperature change and second preset range, selectively to described
The degree of superheat of indoor unit is adjusted " the step of specifically include：
If the ratio of the average value of the rate of temperature change and rate of temperature change of the indoor unit local environment is not described
In second preset range, then the degree of superheat of the indoor unit is adjusted.
8. control method according to claim 1, which is characterized in that at " coil temperature for obtaining at least two indoor units "
The step of before, the control method further includes：
Obtain the temperature of the indoor unit local environment and the target mean temperature of the air-conditioning system；
The temperature of the indoor unit local environment is compared with the target mean temperature；
According to the comparison result of the temperature of the indoor unit local environment and the target mean temperature, selectively executes and " obtain
Take the coil temperature of at least two indoor units " the step of.
9. control method according to claim 8, which is characterized in that " according to the temperature of the indoor unit local environment with
The comparison result of the target mean temperature, the step of selectively executing the coil temperatures of at least two indoor units " obtain " "
The step of specifically include：
Under cooling condition, if the temperature of the indoor unit local environment is less than or equal to the target mean temperature, no
The step of executing " coil temperature for obtaining at least two indoor units ", is directly adjusted the degree of superheat of the indoor unit；
If the temperature of the indoor unit local environment is greater than the target mean temperature, executes and " it is indoor to obtain at least two
The step of coil temperature of machine ".
10. control method according to claim 8, which is characterized in that " according to the temperature of the indoor unit local environment with
The comparison result of the target mean temperature, the step of selectively executing the coil temperatures of at least two indoor units " obtain " "
The step of specifically include：
Under heating condition, if the temperature of the indoor unit local environment is greater than or equal to the target mean temperature, no
The step of executing " coil temperature for obtaining at least two indoor units ", is directly adjusted the degree of superheat of the indoor unit；
If the temperature of the indoor unit local environment is less than the target mean temperature, executes and " it is indoor to obtain at least two
The step of coil temperature of machine ".
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Effective date of registration: 20210309 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER ELECTRIC Co.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER ELECTRIC Co.,Ltd. |
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Effective date of registration: 20211105 Address after: 230601 plant 1, 2 and 3, Haier Innovation Industrial Park, 3456 Shixin Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: HEFEI HAIER AIR CONDITIONING ELECTRONIC Co.,Ltd. Patentee after: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC Co.,Ltd. Patentee after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Patentee before: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC Co.,Ltd. Patentee before: Haier Zhijia Co.,Ltd. |