CN115264820A - Indoor unit control method and device and air conditioner - Google Patents
Indoor unit control method and device and air conditioner Download PDFInfo
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- CN115264820A CN115264820A CN202210713277.3A CN202210713277A CN115264820A CN 115264820 A CN115264820 A CN 115264820A CN 202210713277 A CN202210713277 A CN 202210713277A CN 115264820 A CN115264820 A CN 115264820A
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention provides an indoor unit control method, an indoor unit control device and an air conditioner, wherein the method comprises the following steps: determining a target rotational speed based on a current coil temperature; controlling the indoor unit to adjust the rotating speed based on the target rotating speed so that the indoor unit can continuously run for a first preset time at the adjusted rotating speed; if the temperature of the next coil pipe is determined to be in the first interval, controlling the indoor unit to reduce the rotating speed of the fan based on the adjusted rotating speed; and if the temperature of the next coil pipe is determined to be in the second interval, controlling the indoor unit to increase the rotating speed of the fan based on the adjusted rotating speed. According to the indoor unit control method, the indoor unit control device and the air conditioner, the system pressure value is analyzed according to the coil temperature, the fan rotating speed of the indoor unit is adaptively adjusted, the coil temperature in the high-temperature self-cleaning mode operation is always kept in a normal temperature range, the air outlet temperature is guaranteed to be stabilized at 56 ℃, the high-temperature self-cleaning completion efficiency is improved, and the problem that the system pressure suddenly rises and falls to cause shutdown is avoided due to the fact that the air outlet temperature is maintained in a single mode through frequency rising and falling.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to an indoor unit control method and device and an air conditioner.
Background
The temperature of 56 ℃ is the temperature for inactivating the virus, and the temperature of 56 ℃ is the safe temperature for self-cleaning air-conditioning high-temperature sterilization. The high temperature self-cleaning process may include: when the air conditioner is self-cleaned, the surface of the evaporator coil can be cooled to frost at a high speed, particles such as bacteria, dust and the like are peeled off, then the temperature is increased at a high speed (above 56 ℃) to defrost, the frost is changed into water to wash away the bacteria and dust, and related germs can be effectively killed by continuously operating at the temperature, so that the sterilization rate reaches 99%.
However, when the air conditioner is in the defrosting stage, since the rotation speed of the internal machine is low, the frequency is high, and the system pressure is high, the air conditioner is generally adjusted by means of increasing and decreasing the frequency, and the shutdown caused by high system pressure in the forms of overcurrent protection and the like due to sudden rise of the system pressure is easily caused, so that the user experience is influenced.
Disclosure of Invention
The invention provides an indoor unit control method, an indoor unit control device and an air conditioner, which are used for solving the defects that the system pressure cannot be judged in a defrosting stage and the shutdown is caused by high system pressure only through frequency increase and reduction regulation in the prior art.
The invention provides an indoor unit control method, which comprises the following steps:
determining a target rotational speed based on a current coil temperature;
controlling the indoor unit to adjust the rotating speed based on the target rotating speed so that the indoor unit can continuously operate at the adjusted rotating speed for a first preset time;
if the temperature of the next coil is determined to be in the first interval, controlling the indoor unit to reduce the rotating speed of the fan based on the adjusted rotating speed;
if the temperature of the next coil pipe is in a second interval, controlling the indoor unit to increase the rotating speed of the fan based on the adjusted rotating speed;
wherein, the current coil temperature is obtained under the condition that the air conditioner starts a high-temperature self-cleaning mode; the temperature of the next coil pipe is the temperature of the coil pipe after the indoor unit continuously operates for a first preset time at the adjusted rotating speed; the first and second intervals are determined by a normal temperature range of the coil in the high temperature self-cleaning mode.
According to the indoor unit control method provided by the invention, if the temperature of the next coil pipe is determined to be in the first interval, the indoor unit is controlled to reduce the rotating speed of the fan based on the adjusted rotating speed, and the method comprises the following steps:
acquiring a first speed change amount corresponding to a first target subinterval according to the first target subinterval corresponding to the temperature of the next coil;
controlling the indoor unit to reduce the rotating speed of the fan on the basis of the adjusted rotating speed based on the first rotating speed change amount;
the first target subinterval is obtained by performing interval division on the first interval; the first amount of speed change is less than zero.
According to the indoor unit control method provided by the invention, the controlling the indoor unit to reduce the rotating speed of the fan on the basis of the adjusted rotating speed based on the first rotating speed change amount comprises the following steps:
controlling the indoor unit to reduce the rotating speed of the fan on the basis of the adjusted rotating speed according to the first rotating speed change amount within a second preset time period so that the indoor unit can continue to the reduced rotating speed of the fan for a second preset time period;
and the second preset time length is greater than the third preset time length.
According to the indoor unit control method provided by the invention, if the temperature of the next coil pipe is determined to be in the second interval, the indoor unit is controlled to increase the rotating speed of the fan based on the adjusted rotating speed, and the method comprises the following steps:
according to a second target subinterval corresponding to the temperature of the next coil, acquiring a second rotating speed variation corresponding to the second target subinterval;
controlling the indoor unit to increase the rotating speed of the fan on the basis of the adjusted rotating speed based on the second rotating speed variation;
the second target subinterval is obtained by performing interval division on the second interval; the second rotational speed variation is greater than zero.
According to the indoor unit control method provided by the invention, the controlling the indoor unit to increase the rotating speed of the fan on the basis of the adjusted rotating speed based on the second rotating speed variation comprises the following steps:
controlling the indoor unit to increase the rotating speed of the fan on the basis of the adjusted rotating speed according to the second rotating speed variation within a fourth preset time length so that the indoor unit can continue to maintain the increased rotating speed of the fan for a fifth preset time length;
and the fourth preset time length is longer than the fifth preset time length.
According to the indoor unit control method provided by the invention, the control of the indoor unit to adjust the rotating speed based on the target rotating speed comprises the following steps:
and controlling the indoor unit to adjust the rotating speed of the fan to the maximum rotating speed under the condition that the target rotating speed is determined to be greater than or equal to the rated maximum rotating speed of the indoor unit.
The present invention also provides an indoor unit control device, including:
the rotating speed determining module is used for determining a target rotating speed based on the current coil temperature;
the initial control module is used for controlling the indoor unit to adjust the rotating speed based on the target rotating speed so that the indoor unit can continuously operate at the adjusted rotating speed for a first preset time;
the first subsequent control module is used for controlling the indoor unit to reduce the rotating speed of the fan based on the adjusted rotating speed if the temperature of the next coil pipe is determined to be in a first interval;
the second subsequent control module is used for controlling the indoor unit to increase the rotating speed of the fan based on the adjusted rotating speed if the temperature of the next coil pipe is determined to be in a second interval;
wherein, the current coil temperature is obtained under the condition that the air conditioner starts a high-temperature self-cleaning mode; the temperature of the next coil pipe is the temperature of the coil pipe after the indoor unit continuously operates for a first preset time at the adjusted rotating speed; the first and second intervals are determined by a normal temperature range of the coil in the high temperature self-cleaning mode.
The invention also provides an air conditioner, which comprises an indoor unit and an outdoor unit, wherein the indoor unit is internally provided with a control processor and a sensing module, and the sensing module is arranged at a coil pipe of the indoor unit; the indoor unit control method further comprises a memory and a program or an instruction which is stored on the memory and can be run on the control processor, and the program or the instruction is executed by the control processor to execute any one of the indoor unit control methods.
The present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements any of the above-described indoor unit control methods.
The invention also provides a computer program product, which comprises a computer program, and the computer program realizes the indoor unit control method when being executed by a processor.
According to the indoor unit control method, the indoor unit control device and the air conditioner, the rotating speed is adjusted to the target rotating speed determined by the current coil pipe temperature based on the primary control of the indoor unit, after the indoor unit continuously operates for the first preset time in the state, the rotating speed of the fan is increased or reduced through continuously monitoring the temperature of the next coil pipe, the pressure value of a system is analyzed according to the coil pipe temperature, the rotating speed of the fan of the indoor unit is adaptively adjusted, the coil pipe temperature in the high-temperature self-cleaning mode operation is always kept in a normal temperature range, the air outlet temperature is guaranteed to be stabilized at 56 ℃, the high-temperature self-cleaning completion efficiency is improved, and the problem that the air outlet temperature is maintained through increasing and decreasing frequency in one way to cause shutdown caused by sudden rising and falling of the system pressure is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of an indoor unit control method provided by the present invention;
fig. 2 is a schematic structural diagram of an indoor unit control device provided by the present invention;
fig. 3 is a schematic structural diagram of an air conditioner provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," and the like in this application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The terms "comprises" and "comprising" indicate the presence of the described features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Fig. 1 is a flow chart illustrating an indoor unit control method according to an embodiment of the present invention. As shown in fig. 1, a method for controlling an indoor unit according to an embodiment of the present invention includes: step 101, determining a target rotation speed based on the current coil temperature.
Wherein, the current coil temperature is obtained under the condition that the air conditioner starts a high-temperature self-cleaning mode.
The main body of the indoor unit control method according to the embodiment of the present invention is an indoor unit control device.
The application scenario of the indoor unit control method provided by the embodiment of the invention is that after a user activates the high-temperature self-cleaning mode of the air conditioning system, the wind speed of the indoor unit is adaptively compensated through the coil temperature fed back by the sensing module in real time, so that the wind speed of the indoor unit and the running frequency of the outdoor unit are relatively balanced, the system pressure of the air conditioner is reduced, and meanwhile, the outlet air temperature is stably maintained at more than 56 ℃.
The sensing module periodically collects the temperature of the coil pipe of the indoor unit at a specified time interval and sends the temperature of the coil pipe to the indoor unit control device. The working cycle of the sensing module is not particularly limited in the embodiments of the present invention.
Optionally, the sensing module may perform the collection operation in a default duty cycle.
Alternatively, the user may send a cycle change instruction to enable the sensing module to receive and respond to the instruction, and change the working cycle to the cycle indicated by the instruction to perform the collection operation.
It should be noted that, before step 101, a user needs to send an activation instruction through a transmission medium to activate a high-temperature self-cleaning mode of the air conditioning system, so that the air conditioning system enters a default frosting stage and a defrosting stage in sequence to take away dust particles and bacteria attached to the inside of the indoor unit.
Optionally, the user may transmit the activation instruction through the control device in a wireless communication manner between the control device and the air conditioning system, so that the air conditioning system initializes the high temperature self-cleaning mode.
Optionally, the user may send an activation instruction in a voice interaction manner, and the air conditioning system receives the activation instruction and initializes the high temperature self-cleaning mode after performing voice recognition.
Specifically, in step 101, after determining that the air conditioner starts the high-temperature self-cleaning mode according to the operation information fed back by each component according to the activation instruction, the indoor unit control device converts the temperature of the coil pipe collected by the sensing module in the current working period into the corresponding target rotation speed.
The target rotating speed is an initial target value of the rotating speed of the fan in the indoor unit. The embodiment of the present invention does not specifically limit the calculation method.
Optionally, in the indoor unit control device, a mapping relationship between the coil temperature and the fan rotation speed may be stored in advance, and the current coil temperature is determined, that is, the corresponding target rotation speed may be obtained through the mapping relationship.
Alternatively, the current coil temperature may be input into a mathematical model to calculate the target rotation speed, and the calculation formula is as follows:
wherein the content of the first and second substances,
target rotational speed, pn Current coil temperature, pntargeAnd k is a temperature-rotating speed conversion coefficient, and b is a rotating speed constant.
Exemplarily, pntargeThe temperature is equal to the degerming high temperature in the high-temperature self-cleaning mode, namely 56 ℃. k may be 10 and b may be 500.
And 102, controlling the indoor unit to adjust the rotating speed based on the target rotating speed so that the indoor unit can continuously operate at the adjusted rotating speed for a first preset time.
It should be noted that the first preset time period is a time period during which the fan of the indoor unit continuously operates at the initial target value in the high-temperature self-cleaning mode.
Specifically, in step 102, the indoor unit control device encapsulates the target rotation speed obtained in step 101 and the first preset duration corresponding to the continuous operation into an initial control command, and sends the command to the indoor unit.
The value of the first preset duration is not specifically limited in the embodiment of the present invention. Illustratively, the first preset time period may be 5 minutes.
The indoor unit receives and responds to the initial control instruction, the rotating speed of the fan inside the indoor unit is adjusted to the target rotating speed, the indoor unit continuously operates for 5 minutes at the rotating speed, the rotating speed of the fan is preliminarily matched with the compression load of the current outdoor unit, and the phenomenon that in the initial defrosting stage of the high-temperature self-cleaning mode, the system pressure is large and high-load shutdown is easy to occur due to the fact that the rotating speed of the fan of the indoor unit is small and the operating frequency of the outdoor unit is high is avoided.
And 103-1, if the temperature of the next coil pipe is determined to be in the first interval, controlling the indoor unit to reduce the rotating speed of the fan based on the adjusted rotating speed.
And the temperature of the next coil pipe is the temperature of the coil pipe after the indoor unit continuously operates for the first preset time at the adjusted rotating speed. The first interval is determined by the normal temperature range of the coil in the high temperature self-cleaning mode.
It should be noted that the next coil temperature refers to the coil temperature collected by the sensing module in the corresponding period after the fan of the indoor unit continuously operates at the target rotation speed for the first preset time.
The first interval is an interval which is smaller than the lower limit of the normal temperature range of the coil pipe in the high-temperature self-cleaning mode.
For example, in the high-temperature self-cleaning mode, if the outlet air temperature in the defrosting stage is 56 ℃, the normal temperature range corresponding to the coil is 56-61 ℃, so the first interval may be [ - ∞,56 ].
Specifically, in step 103-1, the control device of the outdoor unit adjusts the initial rotation speed in step 102, compares the acquired temperature of the next coil with reference to the normal temperature range of the coil in the high-temperature self-cleaning mode, and sends a speed reduction control command to the indoor unit if the temperature is determined to be in the first interval.
On the basis of the updated rotating speed of the initial rotating speed regulation, because the heat taken away by the rotating speed of the fan of the indoor unit is relatively higher than the heat generated by the compressor of the outdoor unit, the system pressure value is smaller, the subsequent coil pipe temperature is too low, and the defrosting effect is poor, the indoor unit receives and responds to a speed reduction control instruction to reduce the rotating speed of the fan inside the indoor unit, the heat exchange process is slowed down by reducing wind power, the temperature of the coil pipe is gradually increased back to the normal temperature range, and the outlet air temperature is always maintained at 56 ℃ in the subsequent operation.
And 103-2, if the temperature of the next coil is determined to be in the second interval, controlling the indoor unit to increase the rotating speed of the fan based on the adjusted rotating speed.
And the temperature of the next coil pipe is the temperature of the coil pipe after the indoor unit continuously operates for the first preset time at the adjusted rotating speed. The second interval is determined by the normal temperature range of the coil in the high temperature self-cleaning mode.
It should be noted that the second interval is an interval greater than the upper limit of the normal temperature range of the coil in the high-temperature self-cleaning mode.
For example, in the high-temperature self-cleaning mode, if the outlet air temperature of the defrosting stage is 56 ℃, the normal temperature range corresponding to the coil is 56-61 ℃, so the second interval may be (61, + ∞).
Specifically, in step 103-2, the control device of the outdoor unit adjusts the initial rotation speed in step 102, compares the acquired temperature of the next coil with reference to the normal temperature range of the coil in the high-temperature self-cleaning mode, and sends a speed-up control command to the indoor unit if the temperature is determined to be in the second interval.
On the basis of the updated rotating speed of the initial rotating speed regulation, because the heat taken away by the rotating speed of the fan of the indoor unit is relatively lower than the heat generated by the compressor of the outdoor unit, and the system pressure value is larger, the subsequent coil pipe temperature is overhigh, and the service life of components is influenced, the indoor unit receives and responds to a speed-up control instruction to increase the rotating speed of the fan inside the indoor unit, the heat exchange process is accelerated by enhancing wind power, so that the temperature of the coil pipe is gradually reduced to be within a normal temperature range, and the outlet air temperature is always maintained at 56 ℃ in the subsequent operation.
It can be understood that if the temperature of the next coil is within the normal temperature range of the coil in the high-temperature self-cleaning mode, i.e. the initial rotation speed adjustment is described to maintain the system pressure in a relatively stable state, the indoor unit does not need to be controlled to adjust the rotation speed of the fan, and the next coil still runs at the updated rotation speed after the initial rotation speed adjustment.
According to the embodiment of the invention, the rotating speed of the indoor unit is adjusted to the target rotating speed determined by the current coil pipe temperature based on preliminary control, after the indoor unit is continuously operated for the first preset time in the state, the indoor unit is controlled to increase the rotating speed of the fan or decrease the rotating speed of the fan in a decision-making manner through continuously monitoring the temperature of the next coil pipe, so that the system pressure value is analyzed according to the coil pipe temperature, the rotating speed of the fan of the indoor unit is adaptively adjusted, the coil pipe temperature in the high-temperature self-cleaning mode operation is always maintained in a normal temperature range, the air outlet temperature is ensured to be stabilized at 56 ℃, the high-temperature self-cleaning completion efficiency is improved, and the problem that the air outlet temperature is maintained in a single-side manner through frequency increase and decrease to cause shutdown caused by sudden rising and falling of the system pressure is avoided.
On the basis of any of the above embodiments, if it is determined that the temperature of the next coil is in the first interval, controlling the indoor unit to reduce the rotation speed of the fan based on the adjusted rotation speed includes: and acquiring a first speed change amount corresponding to the first target subinterval according to the first target subinterval corresponding to the next coil temperature.
The first target subinterval is obtained by performing interval division on the first interval. The first rotational speed variation is less than zero.
In addition, the indoor unit control device sets N in the first section in advance1Dividing points to obtain N1+1 son an interval.
Wherein N is1Is a positive integer greater than or equal to 1. Each subinterval is correspondingly provided with different first speed change amounts. And, each first speed change amount is smaller than zero, and the absolute value thereof increases as the degree of proximity of the lower limit value of the corresponding sub-section to the lower limit value of the first section increases.
Specifically, in step 103-1, the indoor unit control device sets a sub-interval in which the next coil temperature is located as a first target sub-interval, and acquires a first rotation speed change amount corresponding to the sub-interval.
Wherein, the first speed change amount is the reduced speed value in each unit time. The first speed change amount is used for indicating the reduction rate of the fan speed in the indoor unit.
And controlling the indoor unit to reduce the rotating speed of the fan on the basis of the adjusted rotating speed based on the first rotating speed change amount.
Specifically, the indoor unit control device encapsulates the acquired first rotational speed change amount into a deceleration control command, and sends the command to the indoor unit.
The indoor unit receives and responds to the speed reduction control instruction, controls the fan inside the indoor unit, and reduces the rotating speed of the fan according to the speed reduction rate indicated by the first rotating speed change amount on the basis of the updated rotating speed after the initial rotating speed is adjusted.
The speed reduction process is not particularly limited in the embodiment of the present invention. Exemplarily, in N1Equal to 1 as an example, the first interval may be divided into two sub-intervals, i.e., [ - ∞, 52) and [52,56), where:
if the temperature of the next coil is [ - ∞,52 ], the corresponding first rotational speed change is-30 radians per minute (rad/min), i.e. the fan rotational speed of the indoor unit is reduced by 30 rad/min.
If the temperature of the next coil is [52,56 ], the corresponding first rotational speed variation is-10 rad/min, i.e. the rotational speed of the fan of the indoor unit is decreased by 10 rad/min.
According to the embodiment of the invention, when the indoor unit is controlled to reduce the rotating speed of the fan based on the next coil temperature decision, the first rotating speed change amount is determined through the subinterval where the next coil temperature is located, so that the indoor unit can regularly reduce the rotating speed of the fan according to the first rotating speed change amount. The system pressure value is analyzed according to the temperature of the coil pipe, after the initial rotating speed is adjusted, the rotating speed of the fan is quantitatively adjusted according to the subsequent temperature of the coil pipe, the temperature of the coil pipe in the high-temperature self-cleaning mode operation is always kept in a normal temperature range, the air outlet temperature is stabilized at 56 ℃, and the high-temperature self-cleaning finishing efficiency is improved.
On the basis of any one of the above embodiments, controlling the indoor unit to reduce the fan rotation speed on the basis of the adjusted rotation speed based on the first rotation speed variation amount includes: and controlling the indoor unit to reduce the rotating speed of the fan on the basis of the adjusted rotating speed according to the first rotating speed change amount within a second preset time period so that the indoor unit can continue the reduced rotating speed of the fan for the second preset time period.
And the second preset time length is greater than the third preset time length.
It should be noted that the second preset time period is used for indicating the time period for executing the reduction of the rotation speed of the fan.
And the third preset time is used for indicating the time for maintaining the reduced rotating speed of the fan.
Specifically, the indoor unit control device may also set different speed reduction strategies around the first speed change amount and for a duration of speed reduction at a corresponding rate, that is, the indoor unit control device sends a control instruction including the first speed change amount and a third preset duration to the indoor unit for each second preset duration, so as to control the indoor unit to reduce the speed according to the first speed change amount within each second preset duration, and maintain the reduced speed value within the third preset duration.
The values of the second preset duration and the third preset duration are not specifically limited in the embodiments of the present invention.
Optionally, the first preset time period is 2 minutes, and the second preset time period is 1 minute. In the strategy for reducing the rotating speed corresponding to different subintervals in the first interval, the strategy is kept for 1 minute after continuously reducing the first rotating speed change amount corresponding to the subinterval for 2 minutes.
Optionally, the first preset time duration and the second preset time duration corresponding to different subintervals in the first interval may also be set in a negative correlation manner. That is, in the strategy of decreasing the rotation speed corresponding to the temperature of the next coil, the lower the temperature of the next coil is, the longer the corresponding first preset time period and the second preset time period are.
According to the embodiment of the invention, based on the subinterval where the temperature of the next coil is located, the rotating speed reduction strategy corresponding to the subinterval is decided to be executed, and the fan of the indoor unit is controlled to be decelerated by the corresponding first rotating speed variation within the second preset time period and then continues for the third preset time period. The fan deceleration can be stably and quantitatively regulated according to the temperature of a next coil pipe, and the influence of the back-and-forth jumping of the value on the stable operation of the air conditioner is prevented.
On the basis of any of the above embodiments, if it is determined that the temperature of the next coil is in the second interval, controlling the indoor unit to increase the rotation speed of the fan based on the adjusted rotation speed includes: and acquiring a second rotating speed variation corresponding to the second target subinterval according to the second target subinterval corresponding to the next coil temperature.
And the second target subinterval is obtained by performing interval division on the second interval. The second rotational speed variation is greater than zero.
In addition, the indoor unit control device sets N in the second section in advance2Dividing points to obtain N2+1 subintervals.
Wherein N is2Is a positive integer greater than or equal to 1. And each subinterval is correspondingly provided with different second rotating speed variable quantities. And each second rotation speed variation is larger than zero, and the absolute value of the second rotation speed variation increases along with the increase of the approaching degree of the upper limit value of the corresponding subinterval and the upper limit value of the second interval.
Specifically, in step 103-2, the indoor unit control device takes the subinterval where the next coil temperature is located as the second target subinterval, and obtains the second rotation speed variation corresponding to the subinterval.
The second rotation speed variation is the rotation speed value increased in each unit time. The second rotating speed variable quantity is used for indicating the increasing rate of the rotating speed of the fan in the indoor unit.
And controlling the indoor unit to increase the rotating speed of the fan on the basis of the adjusted rotating speed based on the second rotating speed variation.
Specifically, the indoor unit control device packages the acquired second rotation speed variation to the speed increase control command, and sends the command to the indoor unit.
And the indoor unit receives and responds to the speed-up control instruction, controls the fan in the indoor unit, and increases the rotating speed of the fan according to the speed-up rate indicated by the second rotating speed variation on the basis of the updated rotating speed after the initial rotating speed is adjusted.
The speed reduction process is not particularly limited in the embodiment of the present invention. Exemplarily, in N2Equal to 1 as an example, the second interval can be divided into at least two sub-intervals, namely [61,63) and [63,66), where:
if the next coil temperature is [61,63 ], the corresponding first rotational speed variation is 20rad/min, i.e., the fan rotational speed of the indoor unit is increased by 20 rad/min.
If the next coil temperature is [63,66 ], the corresponding first rotational speed variation is 40rad/min, i.e., the fan rotational speed of the indoor unit is increased by 40 rad/min.
According to the embodiment of the invention, when the indoor unit is controlled to increase the rotating speed of the fan based on the next coil temperature decision, the second rotating speed variation is determined according to the subinterval where the next coil temperature is located, so that the indoor unit can regularly increase the rotating speed of the fan according to the second rotating speed variation. The system pressure value is analyzed according to the temperature of the coil pipe, after the initial rotating speed is adjusted, the rotating speed of the fan is quantitatively adjusted according to the subsequent temperature of the coil pipe, the temperature of the coil pipe in the high-temperature self-cleaning mode operation is always kept in a normal temperature range, the air outlet temperature is stabilized at 56 ℃, and the high-temperature self-cleaning finishing efficiency is improved.
On the basis of any one of the above embodiments, controlling the indoor unit to increase the rotation speed of the fan on the basis of the adjusted rotation speed based on the second rotation speed variation includes: and in the fourth preset time, controlling the indoor unit to increase the rotating speed of the fan on the basis of the adjusted rotating speed according to the second rotating speed variation, so that the indoor unit can continue the fifth preset time with the increased rotating speed of the fan.
And the fourth preset time length is greater than the fifth preset time length.
It should be noted that the fourth preset time period is used for indicating a time period for executing the raising of the rotation speed of the fan.
And the fifth preset time is used for indicating the time for maintaining the lifted rotating speed of the fan.
Specifically, the indoor unit control device may also set different speed increasing strategies around the second speed variation and the duration of increasing the speed at the corresponding rate, that is, the indoor unit control device sends a control instruction including the second speed variation and a fifth preset duration to the indoor unit at each fourth preset duration to control the indoor unit to increase the speed according to the second speed variation within each fourth preset duration, and maintain the speed value after the increase within the fifth preset duration.
The values of the fourth preset time period and the fifth preset time period are not particularly limited in the embodiment of the present invention.
Illustratively, when the temperature of the next coil is [61,63 ], the rotation speed raising strategy is to control the rotation speed of the fan to raise at 20rad/min, stabilize for 1 minute every time the fan raises for 2 minutes, and continue to acquire a new coil temperature to perform the above judgment.
When the temperature of the next coil pipe is [63,66 ], the rotating speed increasing strategy is to control the rotating speed of the fan to increase at 40rad/min, stabilize for 20 seconds every time the rotating speed increases for 2 minutes, and continuously acquire the new coil pipe temperature to carry out the judgment.
It can be understood that, in the subsequent rotation speed adjustment process, if the updated rotation speed value reaches the rated maximum fan rotation speed of the indoor unit after the rotation speed is increased at the speed indicated by the second rotation speed variation, the rotation speed is not increased any more, but the operation is continued at the maximum fan rotation speed.
According to the embodiment of the invention, based on the subinterval where the temperature of the next coil is located, the rotating speed increasing strategy corresponding to the subinterval is decided to be executed, and the fan of the indoor unit is controlled to increase the speed by the corresponding second rotating speed variation within the fourth preset time period and then continue for the fifth preset time period. The fan deceleration can be stably and quantitatively regulated according to the temperature of a next coil pipe, and the influence of the back-and-forth jumping of the value on the stable operation of the air conditioner is prevented.
On the basis of any one of the above embodiments, controlling the indoor unit to adjust the rotation speed based on the target rotation speed includes: and controlling the indoor unit to adjust the rotating speed of the fan to the maximum rotating speed under the condition that the target rotating speed is determined to be greater than or equal to the rated maximum rotating speed of the indoor unit.
Specifically, in step 102, the indoor unit control device compares the target rotation speed with the rated maximum rotation speed of the indoor unit:
and if the target rotating speed is greater than or equal to the rated maximum rotating speed, the rated maximum rotating speed is used as the target rotating speed to control the indoor unit to increase the rotating speed of the fan to the rated maximum, and the temperature of the coil pipe is continuously monitored to perform subsequent dynamic regulation on the rotating speed on the basis of the rated maximum.
And if the target rotating speed is less than the rated maximum rotating speed, directly controlling the indoor unit to increase the rotating speed of the fan to the target rotating speed, and continuously monitoring the temperature of the coil pipe so as to carry out subsequent dynamic regulation on the rotating speed on the basis of the target rotating speed.
According to the embodiment of the invention, after the target rotating speed reaches the rated maximum rotating speed, corresponding compensation is continuously executed at the rotating speed, so that the problem that the heat in the shell of the indoor unit is too high and the safety problem is easily caused due to the overload of the fan of the indoor unit is avoided.
Fig. 2 is a schematic structural diagram of an indoor unit control device according to the present invention. In addition to any of the above embodiments, as shown in fig. 2, an indoor unit control apparatus according to an embodiment of the present invention includes: a speed determination module 210, an initial control module 220, a first follow-up control module 230-1, and a second follow-up control module 230-2, wherein:
a speed determination module 210 to determine a target speed based on the current coil temperature.
The initial control module 220 is configured to control the indoor unit to adjust the rotation speed based on the target rotation speed, so that the indoor unit continuously operates at the adjusted rotation speed for a first preset time period.
And the first subsequent control module 230-1 is configured to control the indoor unit to reduce the rotation speed of the fan based on the adjusted rotation speed if it is determined that the temperature of the next coil is in the first interval.
And a second subsequent control module 230-2, configured to control the indoor unit to increase the rotation speed of the fan based on the adjusted rotation speed if it is determined that the temperature of the next coil is in the second interval.
The current coil temperature is obtained under the condition that the air conditioner starts a high-temperature self-cleaning mode; the temperature of the next coil pipe is the temperature of the coil pipe after the indoor unit continuously operates for the first preset time at the adjusted rotating speed; the first and second intervals are determined by the normal temperature range of the coil in the high temperature self-cleaning mode.
Specifically, the rotational speed determination module 210, the initial control module 220, the first subsequent control module 230-1, and the second subsequent control module 230-2 are electrically connected in sequence.
After determining that the air conditioner starts the high-temperature self-cleaning mode according to the operation information fed back by each component according to the activation instruction, the rotating speed determining module 210 converts the corresponding target rotating speed by using the coil temperature collected by the sensing module in the current working period.
The initial control module 220 encapsulates the target rotation speed obtained in step 101 and the first preset time period corresponding to the continuous operation into an initial control instruction, and sends the instruction to the indoor unit.
The first subsequent control module 230-1 adjusts the initial rotation speed executed by the initial control module 220, compares the acquired temperature of the next coil with reference to the normal temperature range of the coil in the high-temperature self-cleaning mode, and sends a deceleration control instruction to the indoor unit if the value is determined to be in the first interval.
The second subsequent control module 230-2 adjusts the initial rotation speed executed by the initial control module 220, compares the acquired temperature of the next coil with reference to the normal temperature range of the coil in the high-temperature self-cleaning mode, and sends a speed-up control instruction to the indoor unit if the value is determined to be in the second interval.
Optionally, the first subsequent control module 230-1 comprises a first speed change determination unit and a downshift control unit, wherein:
and the first rotation speed change determining unit is used for acquiring a first rotation speed change amount corresponding to the first target subinterval according to the first target subinterval corresponding to the next coil temperature.
And the speed reduction control unit is used for controlling the indoor unit to reduce the rotating speed of the fan on the basis of the adjusted rotating speed based on the first rotating speed change amount.
The first target subinterval is obtained by performing interval division on the first interval. The first rotational speed variation is less than zero.
Optionally, the speed reduction control unit is specifically configured to control the indoor unit to reduce the rotation speed of the fan based on the adjusted rotation speed according to the first rotation speed variation within a second preset time period, so that the indoor unit continues to use the reduced rotation speed of the fan for the second preset time period.
And the second preset time length is greater than the third preset time length.
Optionally, the second subsequent control module 230-2 comprises a second rotation speed variation determination unit and an acceleration control unit, wherein:
and the second rotating speed change determining unit is used for acquiring a second rotating speed change corresponding to a second target subinterval according to the second target subinterval corresponding to the next coil temperature.
And the speed-raising control unit is used for controlling the indoor unit to raise the rotating speed of the fan on the basis of the adjusted rotating speed based on the second rotating speed variation.
The second target subinterval is obtained by performing interval division on the second interval; the second rotational speed variation is greater than zero.
Optionally, the speed-increasing control unit is specifically configured to control the indoor unit to increase the fan speed on the basis of the adjusted speed according to the second speed variation within a fourth preset time period, so that the indoor unit continues to maintain the increased fan speed for a fifth preset time period;
and the fourth preset time length is greater than the fifth preset time length.
Optionally, the initial control module 220 is specifically configured to, when it is determined that the target rotation speed is greater than or equal to a rated maximum rotation speed of the indoor unit, control the indoor unit to adjust the rotation speed of the fan to the maximum rotation speed.
The indoor unit control device provided in the embodiment of the present invention is configured to execute the indoor unit control method according to the present invention, and an implementation manner of the indoor unit control device is consistent with an implementation manner of the indoor unit control method provided in the present invention, and the same beneficial effects can be achieved, and details are not repeated herein.
According to the embodiment of the invention, the rotating speed of the indoor unit is adjusted to the target rotating speed determined by the current coil pipe temperature based on preliminary control, after the indoor unit is continuously operated for the first preset time in the state, the indoor unit is controlled to increase the rotating speed of the fan or decrease the rotating speed of the fan in a decision-making manner through continuously monitoring the temperature of the next coil pipe, so that the system pressure value is analyzed according to the coil pipe temperature, the rotating speed of the fan of the indoor unit is adaptively adjusted, the coil pipe temperature in the high-temperature self-cleaning mode operation is always maintained in a normal temperature range, the air outlet temperature is ensured to be stabilized at 56 ℃, the high-temperature self-cleaning completion efficiency is improved, and the problem that the air outlet temperature is maintained in a single-side manner through frequency increase and decrease to cause shutdown caused by sudden rising and falling of the system pressure is avoided.
Fig. 3 is a schematic structural diagram of an air conditioner provided by the present invention. On the basis of any of the above embodiments, as shown in fig. 3, the air conditioner includes an indoor unit 310 and an outdoor unit 320, a control processor 311 and a sensing module 312 are disposed in the indoor unit 310, and the sensing module 312 is disposed at a coil of the indoor unit 310; the indoor unit control method further comprises a memory and a program or an instruction which is stored on the memory and can be run on the control processor, and the program or the instruction is executed by the control processor 311 to execute the indoor unit control method.
Specifically, the air conditioner is composed of an indoor unit 310 body and an outdoor unit 320 body. The control processor 311 may be integrated on a control development board of the indoor unit 310 by a chip or a microprocessor, and the compensation control of the wind speed in the high-temperature self-cleaning mode is realized by the communication connection between the control processor 311 and the indoor unit 310 and the sensing module 312.
A sensing module 312 is further disposed at the coil in the indoor unit 310 to collect the coil temperature in real time, and feed the collected temperature back to the control processor 311 for performing logic judgment on the fan rotation speed of the indoor unit 310. The control processor 311 performs signal transmission with the indoor unit 310 and the sensing module 312 respectively by using a wireless communication technology.
The number of temperature sensors in the sensing module 312 is not specifically limited in the embodiment of the present invention.
Alternatively, the sensing module 312 may be a temperature sensor disposed at the coil, and the indoor unit control device uses the collected temperature data as the coil temperature.
Optionally, the sensing module 312 may be a plurality of temperature sensors disposed at the coil at regular intervals, and the indoor unit control device performs addition and averaging by using the temperature data collected by each sensor to obtain the coil temperature.
The wireless communication technology includes, but is not limited to, WIFI wireless cellular signals (2G, 3G, 4G, and 5G), bluetooth, and Zigbee, and the embodiment of the present invention is not limited to this.
The air conditioner of the present invention further includes a memory and a program or instructions stored on the memory and executable on the control processor 311. The control processor 311 may call a logic instruction in the memory to execute the indoor unit control method of the present invention, where the method includes: determining a target rotational speed based on a current coil temperature; controlling the indoor unit to adjust the rotating speed based on the target rotating speed so that the indoor unit can continuously run for a first preset time at the adjusted rotating speed; if the temperature of the next coil pipe is determined to be in the first interval, controlling the indoor unit to reduce the rotating speed of the fan based on the adjusted rotating speed; if the temperature of the next coil pipe is determined to be in the second interval, controlling the indoor unit to increase the rotating speed of the fan based on the adjusted rotating speed; the current coil temperature is obtained under the condition that the air conditioner starts a high-temperature self-cleaning mode; the temperature of the next coil pipe is the temperature of the coil pipe after the indoor unit continuously operates for the first preset time at the adjusted rotating speed; the first and second intervals are determined by the normal temperature range of the coil in the high temperature self-cleaning mode.
In addition, the logic instructions in the memory may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand-alone product. 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 and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
According to the embodiment of the invention, the rotating speed of the indoor unit is adjusted to the target rotating speed determined by the current coil pipe temperature based on preliminary control, after the indoor unit is continuously operated for the first preset time in the state, the indoor unit is controlled to increase the rotating speed of the fan or decrease the rotating speed of the fan in a decision-making manner through continuously monitoring the temperature of the next coil pipe, so that the system pressure value is analyzed according to the coil pipe temperature, the rotating speed of the fan of the indoor unit is adaptively adjusted, the coil pipe temperature in the high-temperature self-cleaning mode operation is always maintained in a normal temperature range, the air outlet temperature is ensured to be stabilized at 56 ℃, the high-temperature self-cleaning completion efficiency is improved, and the problem that the air outlet temperature is maintained in a single-side manner through frequency increase and decrease to cause shutdown caused by sudden rising and falling of the system pressure is avoided.
In another aspect, the present invention further provides a computer program product, where the computer program product includes a computer program, the computer program is stored on a non-transitory computer-readable storage medium, and when the computer program is executed by a processor, a computer is capable of executing the indoor unit control method provided by the above methods, and the method includes: determining a target rotational speed based on a current coil temperature; controlling the indoor unit to adjust the rotating speed based on the target rotating speed so that the indoor unit can continuously run for a first preset time at the adjusted rotating speed; if the temperature of the next coil pipe is determined to be in the first interval, controlling the indoor unit to reduce the rotating speed of the fan based on the adjusted rotating speed; if the temperature of the next coil pipe is determined to be in the second interval, controlling the indoor unit to increase the rotating speed of the fan based on the adjusted rotating speed; the current coil temperature is obtained under the condition that the air conditioner starts a high-temperature self-cleaning mode; the temperature of the next coil pipe is the temperature of the coil pipe after the indoor unit continuously operates for the first preset time at the adjusted rotating speed; the first and second intervals are determined by the normal temperature range of the coil in the high temperature self-cleaning mode.
In another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the indoor unit control method provided by the above methods when executed by a processor, and the method includes: determining a target rotational speed based on a current coil temperature; controlling the indoor unit to adjust the rotating speed based on the target rotating speed so that the indoor unit can continuously run for a first preset time at the adjusted rotating speed; if the temperature of the next coil pipe is determined to be in the first interval, controlling the indoor unit to reduce the rotating speed of the fan based on the adjusted rotating speed; if the temperature of the next coil pipe is determined to be in the second interval, controlling the indoor unit to increase the rotating speed of the fan based on the adjusted rotating speed; the current coil temperature is obtained under the condition that the air conditioner starts a high-temperature self-cleaning mode; the temperature of the next coil pipe is the temperature of the coil pipe after the indoor unit continuously operates for the first preset time at the adjusted rotating speed; the first and second intervals are determined by the normal temperature range of the coil in the high temperature self-cleaning mode.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An indoor unit control method, comprising:
determining a target rotational speed based on a current coil temperature;
controlling the indoor unit to adjust the rotating speed based on the target rotating speed so that the indoor unit can continuously run at the adjusted rotating speed for a first preset time;
if the temperature of the next coil pipe is determined to be in the first interval, controlling the indoor unit to reduce the rotating speed of the fan based on the adjusted rotating speed;
if the temperature of the next coil pipe is determined to be in the second interval, controlling the indoor unit to increase the rotating speed of the fan based on the adjusted rotating speed;
wherein, the current coil temperature is obtained under the condition that the air conditioner starts a high-temperature self-cleaning mode; the next coil temperature is the coil temperature after the indoor unit continuously operates for a first preset time at the adjusted rotating speed; the first and second intervals are determined by a normal temperature range of the coil in the high temperature self-cleaning mode.
2. The indoor unit control method of claim 1, wherein if it is determined that the next coil temperature is in the first interval, controlling the indoor unit to reduce the fan speed based on the adjusted speed comprises:
according to a first target subinterval corresponding to the next coil temperature, acquiring a first speed change amount corresponding to the first target subinterval;
controlling the indoor unit to reduce the rotating speed of the fan on the basis of the adjusted rotating speed based on the first rotating speed change amount;
the first target subinterval is obtained by performing interval division on the first interval; the first rotational speed change amount is less than zero.
3. The indoor unit control method according to claim 2, wherein the controlling the indoor unit to reduce the fan rotation speed on the basis of the adjusted rotation speed based on the first rotation speed change amount includes:
controlling the indoor unit to reduce the rotating speed of the fan on the basis of the adjusted rotating speed according to the first rotating speed change amount within a second preset time length so that the indoor unit can continue the reduced rotating speed of the fan for the second preset time length;
and the second preset time length is longer than the third preset time length.
4. The indoor unit control method of claim 1, wherein if it is determined that the next coil temperature is in the second interval, controlling the indoor unit to increase the fan speed based on the adjusted speed comprises:
according to a second target subinterval corresponding to the temperature of the next coil, acquiring a second rotating speed variation corresponding to the second target subinterval;
controlling the indoor unit to increase the rotating speed of the fan on the basis of the adjusted rotating speed based on the second rotating speed variation;
the second target subinterval is obtained by performing interval division on the second interval; the second rotational speed variation is greater than zero.
5. The indoor unit control method according to claim 4, wherein the controlling the indoor unit to increase the fan rotation speed based on the adjusted rotation speed based on the second rotation speed variation amount includes:
controlling the indoor unit to increase the rotating speed of the fan on the basis of the adjusted rotating speed according to the second rotating speed variation within a fourth preset time length so that the indoor unit can continue to maintain the increased rotating speed of the fan for a fifth preset time length;
and the fourth preset time is longer than the fifth preset time.
6. The indoor unit control method according to any one of claims 1 to 5, wherein the controlling the indoor unit to adjust the rotation speed based on the target rotation speed includes:
and under the condition that the target rotating speed is determined to be greater than or equal to the rated maximum rotating speed of the indoor unit, controlling the indoor unit to adjust the rotating speed of the fan to the maximum rotating speed.
7. An indoor unit control device, comprising:
the rotating speed determining module is used for determining a target rotating speed based on the current coil temperature;
the initial control module is used for controlling the indoor unit to adjust the rotating speed based on the target rotating speed so that the indoor unit can continuously operate at the adjusted rotating speed for a first preset time;
the first subsequent control module is used for controlling the indoor unit to reduce the rotating speed of the fan based on the adjusted rotating speed if the temperature of the next coil pipe is determined to be in a first interval;
the second subsequent control module is used for controlling the indoor unit to increase the rotating speed of the fan based on the adjusted rotating speed if the temperature of the next coil pipe is determined to be in a second interval;
wherein, the current coil temperature is obtained under the condition that the air conditioner starts a high-temperature self-cleaning mode; the next coil temperature is the coil temperature after the indoor unit continuously operates for a first preset time at the adjusted rotating speed; the first and second intervals are determined by a normal temperature range of the coil in the high temperature self-cleaning mode.
8. An air conditioner is characterized by comprising an indoor unit and an outdoor unit, wherein a control processor and a sensing module are arranged in the indoor unit, and the sensing module is arranged at a coil pipe of the indoor unit; the indoor unit control method further comprises a memory and a program or an instruction which is stored on the memory and can be run on the control processor, and the program or the instruction is executed by the control processor to execute the indoor unit control method according to any one of claims 1 to 6.
9. A non-transitory computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the indoor unit control method according to any one of claims 1 to 6.
10. Computer program product comprising a computer program, characterized in that said computer program, when being executed by a processor, implements the control method of an indoor unit according to any one of claims 1 to 6.
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| CN202210713277.3A CN115264820A (en) | 2022-06-22 | 2022-06-22 | Indoor unit control method and device and air conditioner |
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| CN202210713277.3A CN115264820A (en) | 2022-06-22 | 2022-06-22 | Indoor unit control method and device and air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115789892A (en) * | 2022-12-14 | 2023-03-14 | 珠海格力电器股份有限公司 | Control method and device of fan coil, fan coil and air conditioner |
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- 2022-06-22 CN CN202210713277.3A patent/CN115264820A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115789892A (en) * | 2022-12-14 | 2023-03-14 | 珠海格力电器股份有限公司 | Control method and device of fan coil, fan coil and air conditioner |
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