CN113091238A - Constant temperature control method, controller and control module of multi-split air conditioner - Google Patents
Constant temperature control method, controller and control module of multi-split air conditioner Download PDFInfo
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- CN113091238A CN113091238A CN202110238169.0A CN202110238169A CN113091238A CN 113091238 A CN113091238 A CN 113091238A CN 202110238169 A CN202110238169 A CN 202110238169A CN 113091238 A CN113091238 A CN 113091238A
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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Abstract
The application relates to a constant temperature control method, a controller and a control module of a multi-split air conditioner, wherein the method comprises the steps of obtaining return air temperature values of air supply areas of indoor units of the air conditioners, and determining the highest return air temperature value and the lowest return air temperature value in all the return air temperature values; respectively comparing the lowest return air temperature value and the highest return air temperature value with preset temperatures; and adjusting the angle of the air deflector of the air-conditioning indoor unit corresponding to the lowest return air temperature value and/or the highest return air temperature value according to the comparison result so as to keep the return air temperature of the air supply area of each air-conditioning indoor unit of the multi-split unit consistent. This application need not distinguish main and auxiliary inner machine, and every indoor set can independently detect ambient temperature, can realize the centralized control of a dragging multi-unit to realize the uniformity of different zone temperature, improve the air supply travelling comfort of a dragging multi-air conditioner, make warm logical air conditioner control more intelligent.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to a constant temperature control method, a controller and a control module for a multi-split air conditioner.
Background
With the improvement of living standard, more and more places can be provided with air conditioners to improve the comfort of work and life, and for single large-space occasions (such as small supermarkets, clothing stores, fast restaurants and the like), a plurality of air conditioners which are one for one are arranged in the market at present to meet the requirements. In such places, air conditioners can be started and closed simultaneously, and if a scheme of one air conditioner with multiple air conditioners is adopted, centralized control cannot be realized; the existing one-drive-multiple unit in the market needs to distinguish the main internal unit and the auxiliary internal unit, and the auxiliary internal unit runs along with the main internal unit, which may cause the temperature of each internal unit area to be inconsistent.
In the related art, a multi-split air conditioner realizes multiple functions on the basis of the existing one-split air conditioner, but cannot realize centralized control and the problem that more space is needed for placing an external unit; in addition, the main and auxiliary internal machines need to be distinguished by one-drive-multiple unit, and the problems of poor air supply comfort and inconsistent temperatures in different areas caused by simultaneous start and stop exist.
Disclosure of Invention
In view of the above, the present invention provides a thermostatic control method, a controller and a control module for a multi-split air conditioner, so as to solve the problems in the prior art that the main and auxiliary internal machines need to be distinguished, and the air supply comfort is poor and the temperatures in different areas are inconsistent due to simultaneous start and stop.
In order to achieve the purpose, the invention adopts the following technical scheme: a constant temperature control method of a multi-split air conditioner comprises the following steps:
acquiring return air temperature values of air supply areas of the indoor units of the air conditioners, and determining the highest return air temperature value and the lowest return air temperature value in all the return air temperature values;
respectively comparing the lowest return air temperature value and the highest return air temperature value with preset temperatures;
and adjusting the air deflector angle of the air-conditioning indoor unit corresponding to the lowest return air temperature value and/or the highest return air temperature value according to the comparison result so as to keep the return air temperature of the air supply area of each air-conditioning indoor unit of the multi-split unit consistent.
Further, before obtaining the return air temperature value of each air supply area of the indoor unit of the air conditioner, the method further comprises the following steps:
and the unit operates for a preset time at a preset temperature and a preset angle of the air deflector after being started.
Further, the obtaining of the return air temperature of the air supply area of the indoor unit of the air conditioner comprises:
and detecting the return air temperature of the air supply area of each air-conditioning indoor unit by using a temperature sensor configured in each air-conditioning indoor unit.
Further, according to the comparison result, adjust the aviation baffle angle of the air conditioning indoor set that return air temperature minimum or return air temperature maximum corresponds, include:
when the difference value between the lowest return air temperature value and the preset temperature is smaller than a first preset value and the difference value between the highest return air temperature value and the preset temperature is larger than a second preset value, adjusting the angle of the air deflector of the air-conditioning indoor unit corresponding to the lowest return air temperature value to a first preset angle, and adjusting the angle of the air deflector of the air-conditioning indoor unit corresponding to the highest return air temperature value to a second preset angle;
when the lowest return air temperature value is the same as the preset temperature and the difference value between the highest return air temperature value and the preset temperature is larger than a third preset value, reducing the angle of an air deflector of the indoor unit of the air conditioner corresponding to the lowest return air temperature value to the difference value between a third preset angle and a fourth preset angle, wherein the third preset angle is larger than the fourth preset angle;
when the lowest value of the return air temperature is the same as the preset temperature and the difference value between the highest value of the return air temperature and the preset temperature is more than or equal to a third preset value and less than or equal to a second preset value, the angle of an air deflector of the indoor unit of the air conditioner corresponding to the highest value of the return air temperature is adjusted to be larger than the sum value of the third preset angle and a fourth preset angle;
when the lowest return air temperature value is the same as the preset temperature and the difference value between the highest return air temperature value and the preset temperature is larger than a second preset value, the angle of the air deflector of the air-conditioning indoor unit corresponding to the lowest return air temperature value is adjusted to be smaller than the difference value between a third preset angle and a fourth preset angle, and the angle of the air deflector of the air-conditioning indoor unit corresponding to the highest return air temperature value is adjusted to be larger than the second preset angle;
the first preset value is smaller than a third preset value, and the third preset value is smaller than the second preset value; the first preset angle is smaller than a fourth preset angle, the fourth preset angle is smaller than a third preset angle, and the third preset angle is smaller than the second preset angle.
And further, when all the return air temperature values are less than or equal to the first preset value, the unit is stopped.
And further, adjusting the angle of the air deflector by utilizing an air deflector adjusting device configured on each air conditioner indoor unit, wherein the air deflector runs for at least 10 minutes after each adjustment.
Furthermore, the angle adjusting range of the air deflector is 45-75 degrees.
An embodiment of the present application provides a controller, including:
a memory having an executable program stored thereon;
a processor for executing the executable program in the memory to implement the steps of the method in any of the above embodiments.
An embodiment of the present application provides a control module, including:
the controller provided in the above embodiments, and
the system comprises an external machine interface, a control chip and a plurality of internal machine interfaces;
the outdoor unit interface is connected with a communication interface of an air conditioner outdoor unit on the control module, the plurality of indoor unit interfaces are connected with a communication interface of an air conditioner indoor unit on the control module, and the control chip is used for uniformly calculating communication data of the air conditioner indoor unit and the air conditioner outdoor unit and sending a centralized command.
The embodiment of the application provides an air conditioner control system, includes: an air condensing units, a plurality of air condensing units and the control module provided by the above embodiment.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
the method comprises the steps of obtaining return air temperature values of air supply areas of indoor units of the air conditioners, and determining the highest value and the lowest value of return air temperature in all the return air temperature values; respectively comparing the lowest return air temperature value and the highest return air temperature value with preset temperatures; and adjusting the angle of the air deflector of the air-conditioning indoor unit corresponding to the lowest return air temperature value and/or the highest return air temperature value according to the comparison result so as to keep the return air temperature of the air supply area of each air-conditioning indoor unit of the multi-split unit consistent. This application need not distinguish main and auxiliary inner machine, and every indoor set can independently detect ambient temperature, can realize the centralized control of a dragging multi-unit to realize the uniformity of different zone temperature, improve the air supply travelling comfort of a dragging multi-air conditioner, make warm logical air conditioner control more intelligent.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram illustrating steps of a thermostatic control method for a multi-split air conditioner according to the present invention;
FIG. 2 is a schematic view of an angle adjustment of an air deflector of the indoor unit of an air conditioner according to the present invention;
fig. 3 is a schematic structural diagram of a controller provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
A specific thermostatic control method, controller and control module for a multi-split air conditioner provided in the embodiments of the present application are described below with reference to the accompanying drawings.
As shown in fig. 1, a thermostat control method for a multi-split air conditioner provided in an embodiment of the present application includes:
s101, obtaining return air temperature values of air supply areas of the indoor units of the air conditioners, and determining the highest return air temperature value and the lowest return air temperature value in all the return air temperature values;
it can be understood that, a multi-split air conditioner includes an air conditioner outdoor unit and a plurality of air conditioner indoor units, the present application first obtains a return air temperature value of each air conditioner indoor unit air supply area, for example, the return air temperature values include T1, T2, T3 … Tn, Tm; and then comparing the return air temperature values, determining Tn as the lowest return air temperature value and Tm as the highest return air temperature value, and further determining the air conditioner indoor unit n corresponding to the lowest return air temperature value Tn and/or the air conditioner indoor unit m corresponding to the highest return air temperature value Tm so as to conveniently regulate and control the air conditioner indoor unit n and/or the air conditioner indoor unit m subsequently.
S102, comparing the lowest return air temperature value and the highest return air temperature value with preset temperatures respectively;
the technical scheme that this application provided, when air conditioning unit opened, the user preset a temperature for predetermineeing the temperature, with return air temperature minimum, return air temperature maximum respectively with predetermine the temperature and contrast to adjust the aviation baffle of the air conditioning indoor set that return air temperature minimum and/or return air temperature maximum correspond according to the difference of return air temperature minimum and/or return air temperature maximum and predetermine the temperature.
And S103, adjusting the air deflector angle of the air conditioner indoor unit corresponding to the lowest return air temperature value and/or the highest return air temperature value according to the comparison result so as to keep the return air temperature of the air supply area of each air conditioner indoor unit of the multi-split unit consistent.
And adjusting the air deflector of the air-conditioning indoor unit corresponding to the lowest return air temperature value and/or the highest return air temperature value according to the difference value between the lowest return air temperature value and/or the highest return air temperature value and the preset temperature, wherein the adjusting angles of the air deflector are different according to different difference values.
The working principle of the constant temperature control method of the multi-split air conditioner is as follows: the multi-split air conditioner comprises an air conditioner outdoor unit and a plurality of air conditioner indoor units, wherein return air temperature values of air supply areas of the air conditioner indoor units are obtained firstly, then the return air temperature values are compared, Tn is determined to be the lowest return air temperature value, and Tm is determined to be the highest return air temperature value, so that the air conditioner indoor unit n corresponding to the lowest return air temperature value Tn and/or the air conditioner indoor unit m corresponding to the highest return air temperature value Tm can be determined, and the air conditioner indoor unit n and/or the air conditioner indoor unit m can be conveniently regulated and controlled subsequently; and adjusting the air deflector of the air-conditioning indoor unit corresponding to the lowest return air temperature value and/or the highest return air temperature value according to the difference value between the lowest return air temperature value and/or the highest return air temperature value and the preset temperature, wherein the adjusting angles of the air deflector are different according to different difference values.
In some embodiments, before obtaining the return air temperature value of each air supply area of the indoor unit of the air conditioner, the method further includes:
and the unit operates for a preset time at a preset temperature and a preset angle of the air deflector after being started.
Specifically, after the multi-split air conditioning unit is turned on, the user sets a suitable temperature as the preset temperature, for example, the preset temperature is 26 ℃. The air deflector of the indoor unit of the air conditioner is set to be a preset angle, and it can be understood that the initial preset angle of the air deflector is a third preset angle; after all the indoor units of the air conditioner operate for a preset time, the return air temperature of the air supply area is detected to be consistent, and for example, the preset time is t min.
In some embodiments, the obtaining the return air temperature of the air supply area of the indoor unit of the air conditioner includes:
and detecting the return air temperature of the air supply area of each air-conditioning indoor unit by using a temperature sensor configured in each air-conditioning indoor unit.
Specifically, each air conditioner indoor unit is provided with an ambient temperature sensor which can detect the return air temperature of the air supply area.
In some embodiments, the adjusting, according to the comparison result, the air deflector angle of the indoor unit of the air conditioner corresponding to the lowest return air temperature value or the highest return air temperature value includes:
when the difference value between the lowest return air temperature value and the preset temperature is smaller than a first preset value and the difference value between the highest return air temperature value and the preset temperature is larger than a second preset value, adjusting the angle of the air deflector of the air-conditioning indoor unit corresponding to the lowest return air temperature value to a first preset angle, and adjusting the angle of the air deflector of the air-conditioning indoor unit corresponding to the highest return air temperature value to a second preset angle;
when the lowest return air temperature value is the same as the preset temperature and the difference value between the highest return air temperature value and the preset temperature is larger than a third preset value, reducing the angle of an air deflector of the indoor unit of the air conditioner corresponding to the lowest return air temperature value to the difference value between a third preset angle and a fourth preset angle, wherein the third preset angle is larger than the fourth preset angle;
when the lowest value of the return air temperature is the same as the preset temperature and the difference value between the highest value of the return air temperature and the preset temperature is more than or equal to a third preset value and less than or equal to a second preset value, the angle of an air deflector of the indoor unit of the air conditioner corresponding to the highest value of the return air temperature is adjusted to be larger than the sum value of the third preset angle and a fourth preset angle;
when the lowest return air temperature value is the same as the preset temperature and the difference value between the highest return air temperature value and the preset temperature is larger than a second preset value, the angle of the air deflector of the air-conditioning indoor unit corresponding to the lowest return air temperature value is adjusted to be smaller than the difference value between a third preset angle and a fourth preset angle, and the angle of the air deflector of the air-conditioning indoor unit corresponding to the highest return air temperature value is adjusted to be larger than the second preset angle;
the first preset value is smaller than a third preset value, and the third preset value is smaller than the second preset value; the first preset angle is smaller than a fourth preset angle, the fourth preset angle is smaller than a third preset angle, and the third preset angle is smaller than the second preset angle.
Specifically, when the unit is started, a user sets a temperature T, the air deflector defaults to an angle A, after tmin is operated, an environment temperature sensor on each internal unit detects temperature values T1, T2, T3 … Tn and Tm of an air supply area of the internal unit, and return air temperature values of the internal units are compared, wherein Tn is the lowest return air temperature value and Tm is the highest return air temperature value; tn corresponds to n inner machines, and Tm corresponds to m inner machines;
if it is
Tn-T is less than-2 ℃, Tm-T is more than 2 ℃, the whole machine is not stopped, the angle of the air deflector of the n internal machine is adjusted to a minimum angle a, and the angle of the m internal machine is adjusted to a maximum angle beta;
tn is set as T, Tm-T is greater than 1 ℃, and the angle of the air deflector in the air conditioner is reduced to A-B;
tn is set as T, Tm-T is set as 2 ℃ or less at the temperature of 1 ℃ or more, and the angle of the air deflector in the machine m is as large as A + B;
tn is set as T, Tm-T is set as more than 2 ℃, the angle of the n inner air guide plates is reduced to A-B, and the angle of the m inner air guide plates is opened to a maximum angle beta;
wherein the first preset value is-2, the second preset value is 2, and the third preset value is 1; the first preset angle is a, the second preset angle is beta, the fourth preset angle is A, and the fourth preset angle is B, wherein a < B < A < beta.
That is to say, the user presets the temperature, and if the difference between the preset temperature and the ambient temperature detected by the air conditioner indoor unit is small, the angle adjusted by the air deflector of the air conditioner indoor unit is small; when the difference value between the preset temperature and the ambient temperature detected by the indoor unit of the air conditioner is large, the adjusting angle of the air deflector of the indoor unit of the air conditioner is large.
Preferably, when all the return air temperature values are less than or equal to the first preset value, the unit is stopped.
When all the return air temperatures tn-T are less than or equal to-2 ℃, the unit is stopped at the temperature point.
Preferably, the angle of the air deflector is adjusted by using an air deflector adjusting device configured for each air conditioner indoor unit, and the air deflector runs for at least 10 minutes after each adjustment.
Preferably, as shown in fig. 2, the angle adjustment range of the air deflector is 45 to 75 degrees.
It can be understood that the inner machine is provided with the air deflector adjusting device, and the air deflector adjusting device is provided with 5 angle ranges, and the adjustable range is alpha-beta, such as 45-75 degrees.
According to the constant temperature control method of the multi-split air conditioner, the main indoor unit and the auxiliary indoor units do not need to be distinguished, and each indoor unit can independently detect the ambient temperature; the multi-split air conditioner can achieve one-split-multi centralized control, the consistency of temperatures of different areas is achieved, the air supply comfort of the multi-split air conditioner is improved, and the control of the heating ventilation air conditioner is more intelligent.
As shown in fig. 3, the present embodiment provides a controller 3 including:
a memory 301 having an executable program stored thereon;
a processor 302 for executing the executable program in the memory 301 to implement the steps of:
acquiring return air temperature values of air supply areas of the indoor units of the air conditioners, and determining the highest return air temperature value and the lowest return air temperature value in all the return air temperature values;
respectively comparing the lowest return air temperature value and the highest return air temperature value with preset temperatures;
and adjusting the air deflector angle of the air-conditioning indoor unit corresponding to the lowest return air temperature value and/or the highest return air temperature value according to the comparison result so as to keep the return air temperature of the air supply area of each air-conditioning indoor unit of the multi-split unit consistent.
An embodiment of the present application provides a control module, including:
the controller provided in the above embodiments, and
the system comprises an external machine interface, a control chip and a plurality of internal machine interfaces;
the outdoor unit interface is connected with a communication interface of an air conditioner outdoor unit on the control module, the plurality of indoor unit interfaces are connected with a communication interface of an air conditioner indoor unit on the control module, and the control chip is used for uniformly calculating communication data of the air conditioner indoor unit and the air conditioner outdoor unit and sending a centralized command.
Specifically, the one-drive-many control module comprises: the device comprises an external machine interface, a control chip, an internal machine interface 1, an internal machine interface 2, internal machine interfaces 3 and … … and an internal machine interface N. The interface of the external machine is connected with the communication interface of the external machine on the multi-split control module, and the interface of the internal machine is connected with the communication interface of the internal machine on the multi-split control module. The control chip is responsible for the unified calculation of the communication data of the indoor unit and the outdoor unit of the air conditioner and sending a centralized command.
The embodiment of the application provides an air conditioner control system, includes: an air condensing units, a plurality of air condensing units and the control module provided by the above embodiment.
In summary, the present invention provides a constant temperature control method, a controller and a control module for a multi-split air conditioner, wherein the method includes acquiring return air temperature values of air supply areas of indoor units of each air conditioner, and determining a highest return air temperature value and a lowest return air temperature value of all the return air temperature values; respectively comparing the lowest return air temperature value and the highest return air temperature value with preset temperatures; and adjusting the angle of the air deflector of the air-conditioning indoor unit corresponding to the lowest return air temperature value and/or the highest return air temperature value according to the comparison result so as to keep the return air temperature of the air supply area of each air-conditioning indoor unit of the multi-split unit consistent. This application need not distinguish main and auxiliary inner machine, and every indoor set can independently detect ambient temperature, can realize the centralized control of a dragging multi-unit to realize the uniformity of different zone temperature, improve the air supply travelling comfort of a dragging multi-air conditioner, make warm logical air conditioner control more intelligent.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A constant temperature control method of a multi-split air conditioner is characterized by comprising the following steps:
acquiring return air temperature values of air supply areas of the indoor units of the air conditioners, and determining the highest return air temperature value and the lowest return air temperature value in all the return air temperature values;
respectively comparing the lowest return air temperature value and the highest return air temperature value with preset temperatures;
and adjusting the air deflector angle of the air-conditioning indoor unit corresponding to the lowest return air temperature value and/or the highest return air temperature value according to the comparison result so as to keep the return air temperature of the air supply area of each air-conditioning indoor unit of the multi-split unit consistent.
2. The method of claim 1, wherein prior to said obtaining a return air temperature value for each air conditioning indoor unit supply area, further comprising:
and the unit operates for a preset time at a preset temperature and a preset angle of the air deflector after being started.
3. The method as claimed in claim 1, wherein the obtaining of the return air temperature of the air supply area of the indoor unit of the air conditioner comprises:
and detecting the return air temperature of the air supply area of each air-conditioning indoor unit by using a temperature sensor configured in each air-conditioning indoor unit.
4. The method of claim 1, wherein the adjusting the air deflector angle of the indoor unit of the air conditioner corresponding to the lowest return air temperature value or the highest return air temperature value according to the comparison result comprises:
when the difference value between the lowest return air temperature value and the preset temperature is smaller than a first preset value and the difference value between the highest return air temperature value and the preset temperature is larger than a second preset value, adjusting the angle of the air deflector of the air-conditioning indoor unit corresponding to the lowest return air temperature value to a first preset angle, and adjusting the angle of the air deflector of the air-conditioning indoor unit corresponding to the highest return air temperature value to a second preset angle;
when the lowest return air temperature value is the same as the preset temperature and the difference value between the highest return air temperature value and the preset temperature is larger than a third preset value, reducing the angle of an air deflector of the indoor unit of the air conditioner corresponding to the lowest return air temperature value to the difference value between a third preset angle and a fourth preset angle, wherein the third preset angle is larger than the fourth preset angle;
when the lowest value of the return air temperature is the same as the preset temperature and the difference value between the highest value of the return air temperature and the preset temperature is more than or equal to a third preset value and less than or equal to a second preset value, the angle of an air deflector of the indoor unit of the air conditioner corresponding to the highest value of the return air temperature is adjusted to be larger than the sum value of the third preset angle and a fourth preset angle;
when the lowest return air temperature value is the same as the preset temperature and the difference value between the highest return air temperature value and the preset temperature is larger than a second preset value, the angle of the air deflector of the air-conditioning indoor unit corresponding to the lowest return air temperature value is adjusted to be smaller than the difference value between a third preset angle and a fourth preset angle, and the angle of the air deflector of the air-conditioning indoor unit corresponding to the highest return air temperature value is adjusted to be larger than the second preset angle;
the first preset value is smaller than a third preset value, and the third preset value is smaller than the second preset value; the first preset angle is smaller than a fourth preset angle, the fourth preset angle is smaller than a third preset angle, and the third preset angle is smaller than the second preset angle.
5. The method of claim 4,
and when all the return air temperature values are less than or equal to a first preset value, stopping the unit.
6. The method of claim 4,
and adjusting the angle of the air deflector by utilizing an air deflector adjusting device configured on each air conditioner indoor unit, wherein the air deflector runs for at least 10 minutes after each adjustment.
7. The method of claim 4,
the angle adjusting range of the air deflector is 45-75 degrees.
8. A controller, comprising:
a memory having an executable program stored thereon;
a processor for executing the executable program in the memory to implement the steps of the method of any one of claims 1-7.
9. A control module, comprising:
the controller of claim 8, and
the system comprises an external machine interface, a control chip and a plurality of internal machine interfaces;
the outdoor unit interface is connected with a communication interface of an air conditioner outdoor unit on the control module, the plurality of indoor unit interfaces are connected with a communication interface of an air conditioner indoor unit on the control module, and the control chip is used for uniformly calculating communication data of the air conditioner indoor unit and the air conditioner outdoor unit and sending a centralized command.
10. An air conditioning control system, comprising: an outdoor unit of an air conditioner, a plurality of indoor units of an air conditioner, and the control module of claim 9.
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