CN111380151A - Air conditioner, air conditioner control method and device and readable storage medium - Google Patents
Air conditioner, air conditioner control method and device and readable storage medium Download PDFInfo
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- CN111380151A CN111380151A CN202010224448.7A CN202010224448A CN111380151A CN 111380151 A CN111380151 A CN 111380151A CN 202010224448 A CN202010224448 A CN 202010224448A CN 111380151 A CN111380151 A CN 111380151A
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
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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
- F24F11/62—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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Abstract
The invention discloses an air conditioner control method, which comprises the following steps: when entering a first mode, controlling the air conditioner to perform refrigeration operation so as to enable the heat exchanger to reach a frosting condition; when the condition that the heat exchanger is frosted is monitored, acquiring the duration of the current operation of the first mode as a first duration; determining a control parameter of the air conditioner according to the first time length; and controlling the air conditioner to perform refrigeration operation according to the control parameters so as to frost the surface of the heat exchanger. The invention also discloses an air conditioner control device, an air conditioner and a readable storage medium. The invention aims to adjust and control the frosting stage in the self-cleaning mode of the air conditioner according to the actual filth blockage condition of the heat exchanger, reduce energy consumption and improve the cleaning effect.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner control method, an air conditioner control device, an air conditioner and a readable storage medium.
Background
Most of the existing air conditioners have a self-cleaning function. In the self-cleaning mode, the air conditioner generally sequentially passes through the stages of condensation, frosting, defrosting and the like, and the dirt on the surface of the heat exchanger is condensed into the frost and then taken away by defrosting, so that the heat exchanger is cleaned.
However, in the self-cleaning mode of current air conditioners, in particular constant frequency air conditioners, the frosting phase is generally controlled according to fixed parameters, regardless of the actual dirty condition of the heat exchanger surface. For example, the duration of the frosting stage is fixed, and the frosting stage is operated according to the set duration no matter what the actual condition of the heat exchanger is. When the dirt on the surface of the heat exchanger is more, the frost is formed in the frosting stage of the air conditioner and the dirt is not completely condensed, so that the cleaning effect is poor; when dirt on the surface of the heat exchanger is less, the frosting stage of the air conditioner is easy to be too long or the output capacity is too large, and unnecessary energy consumption is caused. Therefore, the current control mode of the self-cleaning frosting stage cannot be adapted to the actual filth blockage condition of the heat exchanger for control, and the cleaning effect cannot be ensured while unnecessary energy consumption is caused.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide an air conditioner control method, which aims to adjust and control the frosting stage in a self-cleaning mode of an air conditioner according to the actual filth blockage condition of a heat exchanger, reduce energy consumption and improve the cleaning effect.
In order to achieve the above object, the present invention provides an air conditioner control method, including the steps of:
when entering a first mode, controlling the air conditioner to perform refrigeration operation so as to enable the heat exchanger to reach a frosting condition;
when the condition that the heat exchanger is frosted is monitored, acquiring the duration of the current operation of the first mode as a first duration;
determining a control parameter of the air conditioner according to the first time length;
and controlling the air conditioner to perform refrigeration operation according to the control parameters so as to frost the surface of the heat exchanger.
Optionally, the step of determining the control parameter of the air conditioner according to the first time period includes:
and determining the target duration required by the frosting of the heat exchanger according to the first duration as the control parameter.
Optionally, the step of determining a target time length required for the heat exchanger to frost according to the first time length as the control parameter includes:
acquiring a corresponding relation between the first duration and the target duration;
determining a target time length corresponding to the first time length as the control parameter based on the corresponding relation;
in the corresponding relation, the target time length is in a decreasing trend along with the increase of the first time length.
Optionally, before the step of obtaining the corresponding relationship between the first duration and the target duration, the method further includes:
acquiring a first temperature of the heat exchanger when the heat exchanger enters the first mode;
and acquiring the corresponding relation according to the first temperature.
Optionally, the step of obtaining the corresponding relationship according to the first temperature includes:
acquiring a plurality of time intervals and a target time length required for continuous frosting of the heat exchanger corresponding to each time interval according to the first temperature, and taking the target time length as the corresponding relation;
the plurality of time length intervals are obtained by dividing different time lengths required by the heat exchanger to reach the frosting condition after entering the first mode.
Optionally, the determining, based on the correspondence, a target duration corresponding to the first duration as the control parameter includes:
determining a time length interval where the first time length is located as a target interval;
and determining the target duration corresponding to the target interval as the control parameter.
Optionally, the step of determining the control parameter of the air conditioner according to the first time period includes:
and determining the target temperature of the frosting of the heat exchanger according to the first time length to serve as the control parameter.
Optionally, before the step of acquiring the duration of the current operation of the first mode as the first duration when it is monitored that the heat exchanger reaches the frosting condition, the method further includes:
judging whether the temperature of the heat exchanger is less than or equal to a temperature threshold value;
if yes, judging that the heat exchanger reaches a frosting condition;
if not, judging that the heat exchanger does not reach the frosting condition.
Further, in order to achieve the above object, the present application also proposes an air conditioning control device including: the air conditioner control method comprises a memory, a processor and an air conditioner control program stored on the memory and capable of running on the processor, wherein the air conditioner control program realizes the steps of the air conditioner control method according to any one of the above items when being executed by the processor.
In addition, in order to achieve the above object, the present application also proposes an air conditioner including the air conditioning control device as described above.
Further, in order to achieve the above object, the present application also proposes a readable storage medium having stored thereon an air conditioning control program that, when executed by a processor, implements the steps of the air conditioning control method as recited in any one of the above.
The invention provides an air conditioner control method, which comprises the steps of controlling an air conditioner to perform refrigeration operation to enable a heat exchanger to reach a frosting condition when entering a first mode, obtaining the duration of the current operation of the first mode as a first duration when the condition that the heat exchanger reaches the frosting condition is monitored, determining a control parameter of the air conditioner according to the first duration, controlling the air conditioner to perform refrigeration operation according to the determined control parameter to enable the surface of the heat exchanger to be frosted, and condensing dirt on the surface of the heat exchanger into frost. In the self-cleaning frosting process of the air conditioner, the control parameters of the refrigeration operation of the air conditioner are determined according to the first time length required by the frosting adjustment of the heat exchanger after the heat exchanger is frosted after the heat exchanger enters the first mode, because the heat blockage conditions on the surface of the heat exchanger are different, the heat radiation influence of the heat exchanger is different, the time length required by the frosting condition of the air conditioner after the air conditioner starts self-cleaning is different, and therefore the control parameters of the frosting process of the heat exchanger are determined based on the first time length, the frosting process of the air conditioner in the self-cleaning mode can be adapted to the actual filth blockage condition of the heat exchanger to be controlled, the energy consumption is reduced, and.
Drawings
FIG. 1 is a schematic diagram of the hardware involved in the operation of an embodiment of the air conditioning control apparatus of the present invention;
FIG. 2 is a schematic flow chart illustrating an embodiment of an air conditioning control method according to the present invention;
FIG. 3 is a schematic flow chart illustrating an air conditioning control method according to another embodiment of the present invention;
fig. 4 is a detailed flowchart of step S311 in fig. 3.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows: when entering a first mode, controlling the air conditioner to perform refrigeration operation so as to enable the heat exchanger to reach a frosting condition; when the condition that the heat exchanger is frosted is monitored, acquiring the duration of the current operation of the first mode as a first duration; determining a control parameter of the air conditioner according to the first time length; and controlling the air conditioner to perform refrigeration operation according to the control parameters so as to frost the surface of the heat exchanger.
In the prior art, in the self-cleaning mode of the air conditioner, the control parameters of the air conditioner are fixed in the frosting stage, so that the control cannot be adapted to the actual filth blockage condition of the heat exchanger for control, and the cleaning effect cannot be ensured while unnecessary energy consumption is caused.
The invention provides the solution, and aims to adjust and control the frosting stage in the self-cleaning mode of the air conditioner according to the actual filth blockage condition of the heat exchanger, reduce energy consumption and improve the cleaning effect.
The invention provides an air conditioner, which can be any type of air conditioner. In the embodiment of the present invention, the air conditioner refers to a fixed-frequency air conditioner in which the operating frequency of a compressor is fixed. In other embodiments, the variable frequency air conditioner can also be used according to actual requirements.
The air conditioner comprises a compressor 1, a fan 2, a throttling device 3, a refrigerant flow direction switching valve 4 and the like. The compressor 1, the fan 2, the throttle device 3, the refrigerant flow direction switching valve 4, and other components may be connected to form a refrigerant circulation circuit in the air conditioner.
In addition, the invention also provides an air conditioner control device which can be applied to control the air conditioner so as to realize self-cleaning of the air conditioner. The air conditioner control device can be arranged in the air conditioner and can be arranged independently of the air conditioner and is in communication connection with the air conditioner.
In an embodiment of the present invention, referring to fig. 1, an air conditioning control apparatus includes: the processor 1001 includes, for example, a CPU, a memory 1002, a temperature sensor 1003, a timer 1004, and the like. The memory 1002 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). The memory 1002 may alternatively be a storage device separate from the processor 1001.
The temperature sensor 1003 may be specifically provided in a coil of a heat exchanger to be cleaned in the air conditioner to detect the temperature of the heat exchanger. The timer 1004 is specifically used for counting the time length information related to the air conditioner self-cleaning mode control.
The processor 1001 is communicatively connected to the memory 1002, the temperature sensor 1003, and the timer 1004, respectively. The processor 1001 may obtain the temperature data collected by the temperature sensor 1003 and may also read the timing data from the timer 1004. Temperature data, timing data, generated control parameters, etc. acquired by the processor 1001 may also be stored in the memory 1002 as desired. In addition, the processor 1001 may also be connected to a compressor 1, a blower 2, a throttling device 3, a refrigerant flow direction switching valve 4 (such as a four-way valve) and the like in the air conditioner, so as to regulate and control the above components of the air conditioner, thereby implementing the self-cleaning function of the air conditioner.
Those skilled in the art will appreciate that the configuration of the device shown in fig. 1 is not intended to be limiting of the device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1002, which is a readable storage medium, may include an air conditioner control program therein. In the apparatus shown in fig. 1, the processor 1001 may be configured to call an air-conditioning control program stored in the memory 1002, and perform operations of relevant steps of the air-conditioning control method in the following embodiments.
The invention also provides an air conditioner control method to realize self-cleaning of the air conditioner. In the embodiment of the present invention, the air conditioner refers to a fixed-frequency air conditioner in which the operating frequency of a compressor is fixed. In other embodiments, the variable frequency air conditioner can also be used according to actual requirements.
Referring to fig. 2, an embodiment of an air conditioning control method according to the present invention is provided. In this embodiment, the air conditioner control method includes:
step S10, when entering the first mode, controlling the air conditioner to run in a refrigerating mode so as to enable the heat exchanger to reach a frosting condition;
the first mode herein specifically refers to a self-cleaning mode of the air conditioner, that is, an air conditioner operation mode in which the air conditioner cleans the heat exchanger by the cooperative regulation and control of its own components. When a specific instruction input by a user is received or the air conditioner reaches a specific condition through monitoring of the self running condition (such as use duration and the like), the air conditioner can be controlled to enter a first mode so as to clean the heat exchanger of the air conditioner.
When the air conditioner enters the first mode, the air conditioner can be switched to the refrigerating operation or the refrigerating operation can be maintained through the regulation and control function of one or more than one of the components such as the compressor, the throttling device, the indoor fan, the outdoor fan, the four-way valve and the like in the air conditioner. Under the regulation and control effects of the components, a heat exchanger which needs to be cleaned in the refrigeration operation process of the air conditioner is used as an evaporator, and the low-temperature refrigerant of the heat exchanger absorbs heat of air in the environment. Under the regulation and control of the above components, the temperature of the refrigerant in the heat exchanger to be cleaned can be reduced or the heat loss of the heat exchanger caused by the environmental conditions can be reduced, the moisture in the air is condensed on the surface of the heat exchanger to form condensed water, and the surface of the heat exchanger can reach the conditions (such as temperature, humidity and the like) required by frosting.
For example, in a fixed frequency air conditioner, if the air conditioner enters the first mode in a shutdown state, the heat exchanger can be controlled to reach a frosting condition in such a manner that the compressor is turned on, the four-way valve is switched to a position corresponding to a cooling operation, and a fan is maintained in a closed state.
The frosting condition is specifically a standard parameter which meets the requirements of the frosting of the heat exchanger on the environment and/or the self running state and the like. The frosting condition can be specifically set according to the actual condition of the environment where the air conditioner is located, the running characteristic of the air conditioner and the like. For example, if the humidity of the air in the space where the heat exchanger is located is greater than or equal to the first threshold, and/or the surface humidity of the heat exchanger is greater than or equal to the second threshold, and/or the temperature of the air in the space where the heat exchanger is located is less than or equal to the third threshold, and/or the surface temperature of the heat exchanger is less than or equal to the fourth threshold, the heat exchanger may be considered to reach the frosting condition. In this embodiment, in order to ensure whether the heat exchanger meets the accurate characterization of the frosting required state, a temperature threshold is formulated as a frosting condition based on the temperature required to be reached by the heat exchanger itself when the heat exchanger frosts, so as to judge whether the heat exchanger meets the frosting condition.
Step S20, when it is monitored that the heat exchanger reaches a frosting condition, acquiring the duration of the current operation of the first mode as a first duration;
after entering the first mode, parameters (such as temperature, humidity and the like) related to frosting of the heat exchanger and/or the environment where the heat exchanger is located can be monitored continuously or at intervals of a preset time length, and whether the heat exchanger reaches a frosting condition or not is judged based on the monitored parameters. Specifically, before step S20, it is determined whether the temperature of the heat exchanger is less than or equal to a temperature threshold; if yes, judging that the heat exchanger reaches a frosting condition; if not, judging that the heat exchanger does not reach the frosting condition. The temperature of the heat exchanger refers to a temperature value detected by a temperature sensor arranged in the middle of the coil of the heat exchanger.
When the frosting condition of the heat exchanger is monitored to be achieved for the first time after the air conditioner enters the first mode, the duration from the moment when the air conditioner enters the first mode to the current moment can be obtained and used as the first duration. The first time period is characterized by the time period of the air conditioner operation required by the heat exchanger to reach the frosting condition after entering the first mode.
Step S30, determining the control parameter of the air conditioner according to the first time length;
the control parameters are specifically target parameters which are required to be achieved by the air conditioner in the subsequent frosting stage. The control parameters may specifically include an operation parameter of the component (such as at least one of an operation frequency or an on/off state of the compressor, a rotation speed or an on/off state of the fan, an operation duration of the component, and the like), a state parameter of the heat exchanger (a target temperature required to be reached by the heat exchanger itself, a target temperature required to be reached by a space where the heat exchanger is located, and the like), a target duration required to be continued in the frosting stage, and the like. The control parameter can be set to one or more than one according to actual requirements. For a certain type of control parameter, the values of the control parameters corresponding to different first time lengths may be different, and different types of control parameters may have different corresponding relationships with the first time lengths. The corresponding relation between the first time length and the control parameter can be a fixed relation, and can also be a corresponding relation which is different along with the different running states of the air conditioner in the first mode. The corresponding relationship may be a calculation formula, a table, a mapping relationship, an algorithm, and the like. Based on the corresponding relationship between the first duration and the control parameter, the control parameter corresponding to the first duration can be determined.
Step S40, controlling the air conditioner to perform refrigeration operation according to the control parameters so as to frost the surface of the heat exchanger;
and controlling the refrigerating operation of the air conditioner according to the control parameters so as to frost the surface of the heat exchanger and condense dirt on the heat exchanger. For example, the control parameters include a target time length required for frosting, timing is started from the current time, when the timing time length reaches the target time length, frosting is judged to be completed, the air conditioner is controlled to be switched to heating operation, and the frosting period of the heat exchanger is controlled. For another example, when the control parameter includes a target temperature of the heat exchanger required for frosting, components (such as a fan, a compressor, an electronic expansion valve, and the like) related to the temperature of the heat exchanger in the air conditioner are controlled based on the target temperature, so that the temperature of the heat exchanger can be less than or equal to the target temperature, and the control of the temperature of the frosting stage of the heat exchanger is realized.
It should be noted that, in all the control parameters related to the operation of the air conditioner, in addition to the control parameter determined based on the first duration, other control parameters may be set parameters or determined according to other logics, or other control parameters may be determined according to the control parameter determined based on the first duration, and the determination manner of other control parameters may be selected according to the proceeding situation, and it is only necessary to ensure that the frosting on the surface of the heat exchanger is realized in cooperation with the control parameter determined based on the first duration. For example, when the control parameter includes a target time required for frost formation, the component operation parameters of the fixed-frequency air conditioner may include a compressor on, a fan corresponding to a heat exchanger to be cleaned off, and the like.
The air conditioner control method provided by the embodiment of the invention comprises the steps of controlling the air conditioner to perform refrigeration operation to enable a heat exchanger to reach a frosting condition when entering a first mode, obtaining the duration of the current operation of the first mode as a first duration when the condition that the heat exchanger reaches the frosting condition is monitored, determining a control parameter of the air conditioner according to the first duration, controlling the air conditioner to perform refrigeration operation according to the determined control parameter to enable the surface of the heat exchanger to be frosted, and condensing dirt on the surface of the heat exchanger into frost. In the self-cleaning frosting process of the air conditioner, the control parameters of the refrigeration operation of the air conditioner are determined according to the first time length required by the frosting adjustment of the heat exchanger after the heat exchanger is frosted after the heat exchanger enters the first mode, because the heat blockage conditions on the surface of the heat exchanger are different, the heat radiation influence of the heat exchanger is different, the time length required by the frosting condition of the air conditioner after the air conditioner starts self-cleaning is different, and therefore the control parameters of the frosting process of the heat exchanger are determined based on the first time length, the frosting process of the air conditioner in the self-cleaning mode can be adapted to the actual filth blockage condition of the heat exchanger to be controlled, the energy consumption is reduced, and.
Further, after step S40, the method further includes:
and step S50, when the frosting of the heat exchanger is finished, controlling the air conditioner to perform heating operation.
The frosting completion judgment condition can be set according to the actual situation, and can also be determined according to the control parameters. For example, when the control parameter includes a target time length required for frosting, timing may be started when the heat exchanger reaches a frosting condition, and the frosting is determined to be completed when the timing time length reaches the target time length.
The heating operation of the air conditioner is controlled, so that the temperature of the heat exchanger is larger than or equal to a set threshold value, the temperature of the heat exchanger can be adjusted through a compressor, a fan, a throttling device and the like, the state that the temperature of the heat exchanger is larger than or equal to the set threshold value is maintained for a preset time, and therefore the frosting and melting are achieved, the frosting water is formed, and dirt on the surface of the heat exchanger is taken away by the. And when the heating operation time of the air conditioner reaches the preset time, the first mode can be quitted, and the cleaning of the heat exchanger is completed.
Based on the above embodiments, another embodiment of the present application is provided, and in another embodiment, the control parameter may specifically include a target duration for which frosting of the heat exchanger in the first mode is required to last. Based on this, step S30 may include:
and step S31, determining a target duration required by the heat exchanger to frost according to the first duration, and using the target duration as the control parameter.
Specifically, the different first time periods may correspond to different target time periods required for frosting. And obtaining the corresponding relation between the first time length and the target time length required by frosting in advance through a large amount of data analysis. When the target is determined, the corresponding relation between the first time length and the target time length can be obtained, and the target time length required by frosting corresponding to the current first time length is determined based on the corresponding relation and is used as the control parameter.
Specifically, referring to fig. 3, step S31 includes:
step S311, acquiring a corresponding relation between the first duration and the target duration;
step S312, determining a target duration corresponding to the first duration as the control parameter based on the corresponding relationship; in the corresponding relation, the target time length is in a decreasing trend along with the increase of the first time length.
For example, the correspondence between the acquired first time period and the target time period required for frost formation may be referred to the following table:
a first time period t | Target duration T |
t≤t1 | T1 |
t1<t≤t2 | T2 |
t2<t≤t3 | T3 |
…… | …… |
ti<t≤ti+1 | Ti+1 |
Wherein i can be set according to actual requirements. As can be seen from the above table, in the corresponding relationship, the time length required for the heat exchanger to reach the frosting condition after entering the first mode may be divided into a plurality of time length intervals in advance, each time length interval corresponds to a set time length, the time length interval where the current first time length is located is determined, and the set time length corresponding to the time length interval is used as the target time length here.
Wherein, in the corresponding relation, the target time length is in a decreasing trend along with the increase of the first time length. That is, in the above table, as the first period increases, the target period has the following quantitative relationship: t is1>T2>T3>……>Ti+1. If the heat exchanger enters the first mode, when the temperature of the heat exchanger is within the set temperature interval, the shorter the first time is, the more serious the filth blockage condition of the heat exchanger is considered to be, the heat of the refrigerant is difficult to exchange heat with the space, and the surface of the heat exchanger reaches the temperature required by the frosting condition more quickly. Based on the above, the target time length is reduced along with the increase of the first time length, so that when the heat exchanger is seriously clogged, the frosting stage can have enough time to condense dirt, and the cleaning effect is ensured; when the heat exchanger is not seriously clogged, dirt can be condensed in the frosting stage without too long time, so that the cleaning effect is not influenced, and the higher cleaning efficiency is ensured.
Based on this, referring to fig. 4, in the present embodiment, the step S31 includes:
step S301, acquiring a first temperature of the heat exchanger when the heat exchanger enters the first mode;
specifically, when entering the first mode, the temperature detected by the temperature sensor in the middle of the heat exchanger coil may be acquired as the first temperature here.
Step S302, acquiring the corresponding relation according to the first temperature.
The different first temperatures may correspond to different first time periods and target time periods. The specific form of the association relationship between the first temperature and the corresponding relationship may be set according to the actual situation (e.g., a calculation formula, a mapping table, etc.). For example, when the correspondence between the first time period and the target time period is a calculation formula, different first temperatures may correspond to different formula constants, and a calculation formula formed based on the formula constants is obtained as the correspondence between the first time period and the target time period.
In addition, the first temperature can be divided into a plurality of temperature intervals, and each temperature interval corresponds to the corresponding relation between one first time length and the target time length. And determining a temperature interval where the first temperature is located, wherein the corresponding relation of the temperature interval can determine the corresponding relation between the current first time length and the target time length. For example, the first temperature T0The correlation with the corresponding relationship can be referred to the following table:
in the corresponding relations corresponding to different first temperatures, the larger the first temperature is, the larger the parameter of the first time length in the corresponding relation is. For example, t 'in relation 2'1>t1、t'2>t2、t'3>t3、t'i>tiAnd so on.
In the embodiment, the target time length required by frosting is determined based on the first time length, so that the frosting period in the self-cleaning process is not fixed any longer, but can be adjusted according to the filth blockage condition of the heat exchanger, and the cleaning effect is ensured and the energy consumption is reduced. The difference of the time lengths reaching the frosting condition is caused by the difference of the temperatures when the heat exchanger enters the first mode, so that the corresponding relation between the first time length and the target time length is obtained according to the first temperature, the target time length corresponding to the current first time length is determined as the control parameter based on the corresponding relation, and therefore the determined control parameter is more accurate and is more accurately suitable for actual filth blockage of the heat exchanger to carry out frosting control.
Further, step S02 includes: acquiring a plurality of time intervals and target time required for continuous frosting of the heat exchanger corresponding to each time interval according to the first temperature; and taking the plurality of time length intervals and the target time length required for continuous frosting of the heat exchanger corresponding to each time length interval as the corresponding relation. In each corresponding relation, different time lengths required for reaching the frosting condition after frosting can be divided into a plurality of time length intervals in advance, and each time length interval is correspondingly provided with a target time length required by a frosting stage based on the represented filth blockage condition. The time intervals in the corresponding relations corresponding to different first temperatures are divided in different manners. Based on this, the step of determining the target duration corresponding to the first duration as the control parameter based on the corresponding relationship comprises: determining a time length interval where the first time length is located as a target interval; determining the target duration corresponding to the target interval as the control parameterAnd (4) counting. In particular, Tk<T0≤TmWhen the first time length satisfies t'1<t'≤t'2Then, is T'2As a control parameter for the frosting phase.
In other embodiments, after the duration interval in which the first duration is located is determined, a value obtained by correcting the set duration corresponding to the duration interval based on the difference between the first duration and the critical value of the duration interval may be used as the target duration to obtain the control parameter of the air conditioner in the frosting stage.
According to the mode, different time intervals and corresponding set time lengths are correspondingly set for different first temperatures, the time intervals and the corresponding time lengths are used as corresponding relations to determine the target time lengths corresponding to the first time lengths, the different time intervals can represent different filth blockage degrees of the heat exchanger at the first temperature, the set time lengths corresponding to the time intervals can represent the target time lengths of frosting required by both a cleaning effect and a low energy consumption effect under the filth blockage degrees, and therefore the set time lengths corresponding to the time intervals are obtained as the target time lengths by determining the time intervals where the first time lengths are located, the control over a frosting period is achieved, the accuracy of control parameters in a frosting stage is further guaranteed, and frosting control in a self-cleaning mode can be conducted according to the current filth blockage degree of the heat exchanger.
Based on any one of the above embodiments, a further embodiment of the air conditioner control method is provided. In this embodiment, the control parameter may also include a target temperature to which heat exchanger frosting needs to be achieved. Specifically, the control parameters may include only a target temperature to be reached by frosting of the heat exchanger; in addition, the control parameters may also include both a target temperature to be reached for heat exchanger frosting and a target duration to be maintained. When the control parameter includes a target temperature required to be reached by the heat exchanger frosting, the step S30:
and step S32, determining the target frosting temperature of the heat exchanger according to the first time length, and using the target frosting temperature as the control parameter.
Wherein different first time periods may correspond to different target temperatures. And establishing a corresponding relation between the first time length and the target temperature in advance, and determining the target temperature corresponding to the first time length as a control parameter based on the corresponding relation. The corresponding relationship may be a calculation formula, a mapping table, and the like. And determining the target temperature corresponding to the first time length as a control parameter based on the corresponding relation between the first time length and the target temperature.
The longer the first period is in the correspondence relationship between the first period and the target temperature, the higher the target temperature is. The longer the first time is, the less serious the filth blockage of the heat exchanger is, and the dirt can be condensed only by slight frosting in the frosting stage, so that the target temperature of the heat exchanger is higher, the high-energy-efficiency output of components such as a compressor, a fan and the like is avoided, the cleaning effect is not influenced, and the energy consumption is reduced; the shorter the first time is, the more serious the dirt blockage is, the thick frost is required to be formed in the frosting stage to ensure that the dirt is condensed, and based on the lower target temperature, the dirt can be ensured to be completely condensed, and the cleaning effect is ensured.
Regardless of the first duration, the corresponding target temperature is smaller than or equal to the maximum threshold value, the maximum threshold value is set based on the frosting condition of the heat exchanger, and the target temperature is smaller than or equal to the maximum threshold value, so that the heat exchanger is guaranteed to meet the frosting condition.
It should be noted that the step S30 may include only the step S31 or the step S32, or may include both the step S31 and the step S32, and both the target temperature and the target time length are used as the control parameters.
In the embodiment, the target temperature of the heat exchanger required by frosting is determined based on the first time length, so that the target temperature of the heat exchanger in different self-cleaning processes is guaranteed to be not fixed any more, and the heat exchanger can be adjusted according to the filth blockage condition of the heat exchanger, and therefore the cleaning effect is guaranteed and the energy consumption is reduced.
In addition, an embodiment of the present invention further provides a readable storage medium, where an air conditioning control program is stored, and the air conditioning control program, when executed by a processor, implements the relevant steps of any of the above air conditioning control methods.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. An air conditioning control method, characterized by comprising the steps of:
when entering a first mode, controlling the air conditioner to perform refrigeration operation so as to enable the heat exchanger to reach a frosting condition;
when the condition that the heat exchanger is frosted is monitored, acquiring the duration of the current operation of the first mode as a first duration;
determining a control parameter of the air conditioner according to the first time length;
and controlling the air conditioner to perform refrigeration operation according to the control parameters so as to frost the surface of the heat exchanger.
2. The air conditioner controlling method as claimed in claim 1, wherein the step of determining the control parameter of the air conditioner according to the first time period comprises:
and determining the target duration required by the frosting of the heat exchanger according to the first duration as the control parameter.
3. The air conditioning control method according to claim 2, wherein the step of determining a target period of time for which frosting of the heat exchanger is required to be continued based on the first period of time as the control parameter comprises:
acquiring a corresponding relation between the first duration and the target duration;
determining a target time length corresponding to the first time length as the control parameter based on the corresponding relation;
in the corresponding relation, the target time length is in a decreasing trend along with the increase of the first time length.
4. The air conditioning control method according to claim 3, wherein the step of obtaining the correspondence relationship between the first time period and the target time period is preceded by:
acquiring a first temperature of the heat exchanger when the heat exchanger enters the first mode;
and acquiring the corresponding relation according to the first temperature.
5. The air conditioning control method according to claim 4, wherein the step of obtaining the correspondence relationship according to the first temperature includes:
acquiring a plurality of time intervals and a target time length required for continuous frosting of the heat exchanger corresponding to each time interval according to the first temperature, and taking the target time length as the corresponding relation;
the plurality of time length intervals are obtained by dividing different time lengths required by the heat exchanger to reach the frosting condition after entering the first mode.
6. The air conditioning control method according to claim 5, wherein the determining, as the control parameter, the target period corresponding to the first period based on the correspondence relationship includes:
determining a time length interval where the first time length is located as a target interval;
and determining the target duration corresponding to the target interval as the control parameter.
7. The air conditioner controlling method as claimed in claim 1, wherein the step of determining the control parameter of the air conditioner according to the first time period comprises:
and determining the target temperature of the frosting of the heat exchanger according to the first time length to serve as the control parameter.
8. The air conditioner control method according to any one of claims 1 to 7, wherein before the step of acquiring a duration of the current operation of the first mode as the first duration when it is monitored that the heat exchanger reaches a frosting condition, further comprising:
judging whether the temperature of the heat exchanger is less than or equal to a temperature threshold value;
if yes, judging that the heat exchanger reaches a frosting condition;
if not, judging that the heat exchanger does not reach the frosting condition.
9. An air conditioning control device characterized by comprising: a memory, a processor and an air conditioning control program stored on the memory and executable on the processor, the air conditioning control program when executed by the processor implementing the steps of the air conditioning control method of any one of claims 1 to 8.
10. An air conditioner characterized by comprising the air conditioning control device according to claim 9.
11. A readable storage medium, having stored thereon an air conditioning control program, which when executed by a processor, implements the steps of the air conditioning control method according to any one of claims 1 to 8.
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