CN111981646B - Cleaning method of air conditioner, air conditioner and readable storage medium - Google Patents

Cleaning method of air conditioner, air conditioner and readable storage medium Download PDF

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Publication number
CN111981646B
CN111981646B CN202010807209.4A CN202010807209A CN111981646B CN 111981646 B CN111981646 B CN 111981646B CN 202010807209 A CN202010807209 A CN 202010807209A CN 111981646 B CN111981646 B CN 111981646B
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Prior art keywords
air conditioner
temperature
frequency
preset
controlling
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CN111981646A (en
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田永林
张福华
汪东明
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TCL Air Conditioner Zhongshan Co Ltd
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TCL Air Conditioner Zhongshan Co Ltd
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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
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • 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
    • 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
    • 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
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
    • F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Thermal Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a cleaning method of an air conditioner, which comprises the following steps: controlling the compressor to operate at a first frequency in response to a cleaning command; when the compressor runs at a first frequency for a first preset time length, acquiring the temperature of a coil pipe of the indoor heat exchanger; judging whether the coil temperature of the indoor heat exchanger meets a preset target temperature or not; if the coil temperature of the indoor heat exchanger does not meet the preset target temperature, controlling the air conditioner to operate in a preset operation mode to obtain the coil temperature of the indoor heat exchanger; and continuing to execute the step of judging whether the temperature of the coil of the indoor heat exchanger meets the preset target temperature until the temperature of the coil of the indoor heat exchanger meets the preset target temperature. The invention also discloses an air conditioner and a readable storage medium. The invention aims to shorten the time for the air conditioner to reach the sterilization required temperature in the cleaning state, ensure that the air conditioner can quickly reach and maintain the high-temperature sterilization state and effectively improve the sterilization effect in the cleaning process of the indoor unit.

Description

Cleaning method of air conditioner, air conditioner and readable storage medium
Technical Field
The invention relates to the technical field of air conditioners, in particular to a cleaning method of an air conditioner, the air conditioner and a readable storage medium.
Background
The indoor unit of the air conditioner is placed in the dust and other bacteria-containing environments for a long time, and peculiar smell and various bacteria are easy to breed. For this reason, the air conditioner generally has a sterilization function, for example, in the process of self-cleaning the air conditioner, the air conditioner sequentially goes through the processes of condensation and defrosting sterilization, and bacteria on the indoor heat exchanger are removed while the heat exchange effect is improved by cleaning the heat exchanger.
However, the sterilization process of the air conditioner in the clean state is generally performed within a fixed time period (for example, 12min), and bacteria can be effectively killed at a certain temperature or higher, the compressor frequency is gradually controlled to increase the temperature based on the ambient temperature, the exhaust temperature, and the like within the time period, and the temperature increase from the lower temperature to the temperature required for high-temperature sterilization is basically 8min or higher, the temperature increase time is long, and even the temperature cannot reach the required temperature, so that the effective sterilization time of the air conditioner in the clean state is short, and the sterilization effect is poor.
Disclosure of Invention
The invention mainly aims to provide a cleaning method of an air conditioner, which aims to shorten the time for the air conditioner to reach the temperature required by sterilization in a cleaning state, ensure that the air conditioner can quickly reach and maintain a high-temperature sterilization state and effectively improve the sterilization effect in the cleaning process of an indoor unit.
To achieve the above object, the present invention provides a cleaning method of an air conditioner, the method comprising the steps of:
controlling the compressor to operate at a first frequency in response to a cleaning command;
when the compressor runs at a first frequency for a first preset time length, acquiring the temperature of a coil pipe of an indoor heat exchanger;
judging whether the coil temperature of the indoor heat exchanger meets a preset target temperature or not;
if the coil temperature of the indoor heat exchanger does not meet the preset target temperature, controlling the air conditioner to operate in a preset operation mode, and acquiring the coil temperature of the indoor heat exchanger; and continuing to execute the step of judging whether the coil temperature of the indoor heat exchanger meets a preset target temperature or not until the coil temperature of the indoor heat exchanger meets the preset target temperature.
Optionally, the step of controlling the air conditioner to operate in a preset operation mode includes:
controlling an air guide piece of the indoor unit of the air conditioner to reduce the air outlet area of an air outlet of the indoor unit; and/or the presence of a gas in the gas,
and controlling an indoor fan of the air conditioner to reduce the rotating speed.
Optionally, the step of controlling the air conditioner to operate in a preset operation mode includes:
and controlling an outdoor fan of the air conditioner to increase the rotating speed.
Optionally, the step of controlling the air conditioner to operate in a preset operation mode includes:
controlling a compressor of the air conditioner to operate at a second frequency, wherein the second frequency is greater than the first frequency.
Optionally, the step of controlling the air conditioner to operate in a preset operation mode includes:
controlling an outdoor fan of the air conditioner to increase the rotating speed to a first rotating speed;
and when the outdoor fan runs at the first rotating speed for a second preset time, controlling the compressor of the air conditioner to run at a second frequency, wherein the second frequency is greater than the first frequency.
Optionally, the second frequency is determined according to the currently acquired coil temperature, the preset target temperature, and the maximum operating frequency.
Optionally, the determining the second frequency according to the currently acquired coil temperature, the preset target temperature, and the maximum operating frequency includes:
determining the temperature difference between the currently acquired coil temperature and the preset target temperature;
acquiring a frequency adjustment parameter corresponding to the temperature difference;
determining the second frequency according to the frequency adjustment parameter and the maximum operating frequency;
wherein the second frequency is less than or equal to the maximum operating frequency, the greater the temperature difference, the greater the second frequency.
Optionally, after the step of obtaining the coil temperature of the indoor heat exchanger, the method further includes:
when the temperature of the coil pipe meets the preset target temperature and is smaller than a preset temperature threshold value, controlling the compressor to maintain the current frequency operation;
when the temperature of the coil pipe meets the preset target temperature and is greater than or equal to the preset temperature threshold value, controlling the compressor to reduce the current frequency to operate;
wherein the preset target temperature is less than the preset temperature threshold.
Optionally, after the step of controlling the compressor to operate at the first frequency in response to the cleaning instruction, the method further includes:
when the duration of the air conditioner responding to the cleaning instruction reaches a third preset duration, controlling the air conditioner to finish responding to the cleaning instruction; and the third preset time length is greater than the first preset time length.
Optionally, after the step of controlling the air conditioner to operate in the preset operation mode, the method further includes:
and when the compressor runs for a fourth preset time length in the preset running mode, executing the step of acquiring the temperature of the coil pipe of the indoor heat exchanger.
Optionally, the first frequency is greater than or equal to a set frequency, the set frequency being 50% of a maximum operating frequency of the compressor.
In addition, in order to achieve the above object, the present application also proposes an air conditioner including the cleaning device of the air conditioner 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 which, when executed by a processor, implements the steps of the cleaning method of the air conditioner as recited in any one of the above.
The invention provides a cleaning method of an air conditioner, which responds to a cleaning instruction, controls a compressor to operate at a first frequency, repeatedly acquires the coil temperature of an indoor heat exchanger after the compressor operates at the first frequency for a first preset time, controls the operation of the air conditioner in a preset operation mode when the coil temperature does not meet a preset target temperature until the coil temperature of the indoor heat exchanger meets the preset target temperature, and accordingly, the air conditioner can be started at a high frequency when starting cleaning without gradually regulating and controlling the compressor based on other factors, ensures that the high enough frequency of the compressor can quickly raise the temperature of an indoor unit, further continuously performs operation on the coil temperature of the indoor heat exchanger, operates in the preset operation mode through the air conditioner when the coil temperature does not meet the preset target temperature, and ensures that the indoor heat exchanger can reach the preset target temperature required by a high-temperature sterilization state, the time for the air conditioner to reach the required sterilization temperature in a cleaning state is greatly shortened, so that the air conditioner can quickly reach and maintain a high-temperature sterilization state, and the sterilization effect of the indoor heat exchanger in the cleaning process is effectively improved.
Drawings
FIG. 1 is a schematic diagram of a hardware configuration involved in the operation of an embodiment of a cleaning device of an air conditioner according to the present invention;
FIG. 2 is a schematic flow chart illustrating an embodiment of a cleaning method for an air conditioner according to the present invention;
FIG. 3 is a schematic flow chart illustrating a cleaning method of an air conditioner according to another embodiment of the present invention;
fig. 4 is a flow chart illustrating a cleaning method of an air conditioner according to another embodiment of the present invention.
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: controlling the compressor to operate at a first frequency in response to a cleaning command; when the compressor runs at a first frequency for a first preset time length, acquiring the temperature of a coil pipe of an indoor heat exchanger; judging whether the coil temperature of the indoor heat exchanger meets a preset target temperature or not; if the coil temperature of the indoor heat exchanger does not meet the preset target temperature, controlling the air conditioner to operate in a preset operation mode, and acquiring the coil temperature of the indoor heat exchanger; and continuing to execute the step of judging whether the coil temperature of the indoor heat exchanger meets a preset target temperature or not until the coil temperature of the indoor heat exchanger meets the preset target temperature.
In the prior art, the sterilization process of the air conditioner in a cleaning state is generally carried out within a fixed time period (for example, 12min), bacteria can be effectively killed only when the bacteria are above a certain temperature, the compressor frequency is regulated and controlled to realize temperature rise within the time period based on the ambient temperature, the exhaust temperature and the like, the temperature rise from the low temperature to the high-temperature sterilization temperature is basically over 8min, the temperature rise time is long, and even the required temperature cannot be reached, so that the effective sterilization time of the air conditioner in the cleaning process is short, and the sterilization effect is poor.
The invention provides the solution, and aims to shorten the time for the air conditioner to reach the sterilization required temperature in the cleaning state, ensure that the air conditioner can quickly reach and maintain the high-temperature sterilization state, and effectively improve the sterilization effect in the cleaning process of the indoor unit.
The embodiment of the invention provides an air conditioner which can be any type of air conditioner, such as a cabinet air conditioner, a wall-mounted air conditioner, a window air conditioner and the like.
In the embodiment of the invention, the air conditioner specifically comprises an indoor unit and an outdoor unit, wherein the outdoor unit comprises a compressor 1, an outdoor fan 2 and the like; the indoor unit may specifically include an indoor heat exchanger, an air outlet control mechanism 3 (such as an indoor fan and/or an air guide member, etc.), and the like.
In the air outlet regulating mechanism 3 of the indoor unit, an air guide of the indoor unit is arranged in an air duct or an indoor air outlet of the indoor unit and is used for regulating the air outlet area, the air outlet angle and the like of the air outlet of the indoor unit. The indoor fan is arranged in an air duct of the indoor unit and used for adjusting the air outlet speed of the indoor unit.
The outdoor fan 2 is specifically configured to adjust a wind speed of outlet air blown from the air conditioner to the outside of the air conditioner.
The coil pipe of the indoor heat exchanger is specifically provided with a temperature sensor 4 for collecting the temperature of the coil pipe of the indoor heat exchanger.
An embodiment of the present invention provides a cleaning device for an air conditioner, which is applied to control operation of the air conditioner, and in the embodiment of the present invention, referring to fig. 1, the cleaning device for the air conditioner includes: a processor 1001 (e.g., a CPU), a memory 1002, a timer 1003, 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 timer 1003 is specifically used for counting time information related to the air conditioner control process. The memory 1002, the timer 1003, the compressor 1, the outdoor fan 2, the air-out regulating mechanism 3, and the temperature sensor 4 in the air conditioner are all connected to the processor 1001.
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 conditioner control program stored in the memory 1002 and perform operations of the steps related to the cleaning method of the air conditioner in the following embodiments.
The embodiment of the invention also provides a cleaning method of the air conditioner.
Referring to fig. 2, an embodiment of a cleaning method of an air conditioner according to the present application is provided. In this embodiment, the cleaning method of the air conditioner includes:
step S10, responding to the cleaning instruction, controlling the compressor to operate at a first frequency;
the cleaning instruction refers to a control instruction for the air conditioner to enter a sterilization stage in the process of executing the self-cleaning function of the indoor heat exchanger, and the cleaning instruction can be sent by a user or automatically generated by the air conditioner when executing the self-cleaning function.
Specifically, the air conditioner starts a heating operation in response to a cleaning instruction. The air conditioner heating operation refers to a state that in a refrigerant circulation loop of the air conditioner, refrigerant flows into the indoor heat exchanger from the compressor, flows through the throttling device, enters the outdoor heat exchanger, and then flows back to the compressor from the outdoor heat exchanger. When the air conditioner is in heating operation, the indoor heat exchanger is in a condensation state.
When the air conditioner is in a self-cleaning mode at present, firstly, controlling the air conditioner to carry out refrigeration operation to condense frost on the surface of an indoor heat exchanger; when frost is condensed on the surface of the indoor heat exchanger and a cleaning instruction is received, the air conditioner is controlled to start heating operation, and the air conditioner is switched from cooling operation to heating operation.
The compressor is controlled to start at a first frequency while the air conditioner starts a heating operation, and the timer is controlled to start timing.
Step S20, when the compressor runs at a first frequency for a first preset time length, acquiring the coil temperature of the indoor heat exchanger;
and controlling a compressor of the air conditioner to maintain the first frequency operation in the time period from the beginning of timing to the time before the timing time reaches the first set time. Specifically, in this embodiment, the first frequency is greater than or equal to a set frequency, the set frequency is 50% of the maximum operating frequency of the compressor, and the operation of the compressor at the first frequency indicates that the compressor is operated at a high frequency. For example, 50% of the maximum frequency Fmax of the compressor may be defined as the set frequency, and any frequency greater than 50% Fmax may be selected as the first frequency. The specific size of the first frequency can be set according to actual conditions. In this embodiment, for example, in this embodiment, the first frequency is a preset frequency, wherein the maximum compressor frequency is 80Hz, and the first frequency is 60Hz specifically. In addition, the first frequency can be set to other values according to actual conditions.
Further, in other embodiments, the specific size of the first frequency may be determined according to an actual condition of the air conditioner when the air conditioner is started to heat, an initial temperature of the coil of the indoor heat exchanger when the air conditioner is started to heat may be obtained, and based on the initial temperature being in a frequency range that is greater than a set frequency and less than or equal to a maximum frequency, a frequency matched with the initial temperature is selected as the first frequency, so as to ensure that the compressor is operated at the first frequency at a high frequency and can reach a temperature required for sterilization within a first preset time period.
The first preset duration can be set according to actual requirements. In this embodiment, the first preset time period is specifically 60s, and in other embodiments, the first preset time period may also be 50s, 40s, 70s, and the like. In addition, the first preset time period can be specifically determined according to the temperature of a coil of the indoor heat exchanger when the air conditioner starts heating operation in response to the cleaning instruction, and the higher the temperature of the coil is in heating start, the shorter the first preset time period can be; the lower the coil temperature at the time of heating start in response to the cleaning instruction, the longer the first preset time period may be. However, the first preset time is less than or equal to the set time threshold, and the set time threshold can be determined according to the actual conditions of high pressure, low pressure and the like of the refrigerant circulating system, so that the problem of reliability of the system caused by the overlong time for maintaining the high-frequency operation of the compressor is avoided.
And when the compressor runs for a first preset time length at a first frequency, reading temperature data collected by a temperature sensor currently arranged on the coil pipe of the indoor heat exchanger in real time to obtain the current coil pipe temperature of the indoor heat exchanger.
Step S30, judging whether the coil temperature of the indoor heat exchanger meets a preset target temperature;
and if the coil temperature of the indoor heat exchanger does not meet the preset target temperature, executing the step S40 and the step S50, and then returning to execute the step S30 until the obtained coil temperature of the indoor heat exchanger meets the preset target temperature. That is, when the acquired coil temperature of the indoor heat exchanger satisfies the preset target temperature, the step S40 is no longer performed.
The preset target temperature is specifically a minimum temperature required for sterilization. The coil temperature of the indoor heat exchanger does not meet the preset target temperature, which means that the coil temperature of the indoor heat exchanger is lower than the preset target temperature, and the current coil temperature is lower, so that a better sterilization effect cannot be achieved; the coil temperature of the indoor heat exchanger meets the preset target temperature, which means that the coil temperature of the indoor heat exchanger is greater than or equal to the preset target temperature, and the current coil temperature is high enough, so that a better sterilization effect can be achieved.
Step S40, controlling the air conditioner to operate in a preset operation mode;
the preset operation mode refers to an operation mode of the air conditioner to increase the temperature of the coil of the indoor heat exchanger. Specifically, the operation of an indoor fan, an outdoor fan, a compressor and/or an air guide part of the air conditioner can be controlled to be adjusted according to the direction of increasing the temperature of the indoor heat exchanger, so that the temperature of a coil pipe of the indoor heat exchanger is further increased.
Specifically, the electronic control components related to the temperature of the coil in the air conditioner can be determined, at least one of the determined electronic control components (such as a compressor, an indoor fan, an outdoor fan, a throttling component and the like) is selected as a target component, the adjustment parameter corresponding to the target component is determined by taking the temperature of the coil as a target, and the target component is controlled to operate according to the determined adjustment parameter.
And step S50, acquiring the coil temperature of the indoor heat exchanger.
The method comprises the steps of reading temperature data collected by a temperature sensor arranged on a coil of an indoor heat exchanger at present after the air conditioner is controlled to operate in a preset mode, and obtaining the current coil temperature of the indoor heat exchanger. Specifically, in this embodiment, after step S40, when the compressor operates in the preset operation mode for a fourth preset time period, step S50 is executed, so that the coil temperature of the indoor heat exchanger can have enough time to respond to the change of the preset operation mode, the accuracy of the acquired coil temperature is ensured, and unnecessary execution of the preset operation mode is avoided. The specific value of the fourth preset time period may be set according to actual requirements, and may be the same time period as the first preset time period, for example, 60s, or may be a time period different from the first preset time period, for example, a time period shorter than the first preset time period, such as 10s, 20s, 15s, and the like.
The cleaning method of the air conditioner provided by the embodiment of the invention is characterized in that the method responds to a cleaning instruction, controls the compressor to operate at a first frequency, repeatedly obtains the coil temperature of the indoor heat exchanger after the compressor operates at the first frequency for a first preset time, controls the operation of the air conditioner in a preset operation mode when the coil temperature does not meet a preset target temperature until the coil temperature of the indoor heat exchanger meets the preset target temperature, and accordingly, the air conditioner can be started at a high frequency when starting cleaning without gradually regulating and controlling the compressor based on other factors, ensures that the high enough frequency of the compressor enables the temperature of an indoor unit to be rapidly increased, further continuously performs operation on the coil temperature of the indoor heat exchanger, operates in the preset operation mode when the coil temperature does not meet the preset target temperature, ensures that the indoor heat exchanger can reach the preset target temperature required by a high-temperature sterilization state, the time for the air conditioner to reach the required sterilization temperature in a cleaning state is greatly shortened, so that the air conditioner can quickly reach and maintain a high-temperature sterilization state, and the sterilization effect of the indoor heat exchanger in the cleaning process is effectively improved.
Specifically, in this embodiment, the step S40 may specifically include, but is not limited to, the following three ways:
in the mode 1, an air outlet regulating and controlling mechanism of an indoor unit of the air conditioner is controlled to regulate operation parameters so as to reduce the air volume of the air conditioner sent into an indoor environment; the air outlet regulating and controlling mechanism comprises an air guide piece and/or an indoor fan of the indoor unit of the air conditioner; for example, the air guide member of the indoor unit of the air conditioner can be controlled to reduce the air outlet area of the air outlet of the indoor unit, and the indoor fan of the air conditioner can be controlled to reduce the rotating speed.
Mode 2, the outdoor fan of the air conditioner is controlled to increase the rotation speed.
Mode 3, controlling a compressor of the air conditioner to operate at a second frequency, wherein the second frequency is greater than the first frequency.
At least one of the above 3 ways may be selected in step S40, and even the operation parameters of the air conditioner may be adjusted in combination with other ways than 3 ways, so as to increase the temperature of the coil of the indoor heat exchanger. In the mode 1, the indoor fan can be controlled to reduce the rotating speed and/or the air guide piece can be controlled to reduce the air guide angle (namely, the air outlet area of the air outlet is reduced) so as to reduce the amount of hot air blown to the indoor space by the air conditioner, avoid the loss of heat of the indoor unit, enable more heat to stay in the indoor unit and realize the rise of the temperature of the coil pipe of the indoor heat exchanger. In the mode 2, the rotating speed of the outdoor fan is increased to a high wind level to operate, so that the evaporation temperature is increased, the exhaust temperature of the compressor is increased, and the temperature of the coil pipe of the indoor heat exchanger is increased. In mode 3, the compressor is controlled to operate at a second frequency higher than the first frequency, increasing the discharge air temperature to effect an increase in the indoor heat exchanger coil temperature.
It should be noted that, in each of the above manners, the parameters corresponding to the air outlet regulation and control mechanism, the outdoor fan, and the compressor may be adjusted according to a preset range, and the adjustment range corresponding to each parameter may also be determined according to the temperature difference between the preset target temperature and the current coil temperature.
In the process of repeatedly executing the steps S30 to S40, when the operating parameter corresponding to each component reaches a limit value in the process of regulating and controlling and the coil temperature of the indoor heat exchanger fails to reach a preset target temperature or higher, the component can be controlled to maintain the limit value to operate until the duration of the air conditioner responding to the cleaning instruction reaches a third preset duration, and the air conditioner finishes responding to the cleaning instruction and quits the heating operation, so as to ensure the sterilization effect to the maximum extent.
Further, in an embodiment, after the step S10, the method may further include:
step S60, when the duration of the air conditioner responding to the cleaning instruction reaches a third preset duration, controlling the air conditioner to finish responding to the cleaning instruction; and the third preset time length is greater than the first preset time length.
The third preset time period can be set according to actual requirements. The third preset time period may be a preset fixed time period, or a fixed time period specifically determined according to the actual operation condition of the air conditioner (such as the degree of dirt blockage of the indoor heat exchanger, the time period of the frost condensation stage in the self-cleaning mode of the air conditioner, and the like). It should be noted that the fixed time duration here refers to a time duration during which the heating operation of the air conditioner is a third preset time duration, and is a fixed time duration that does not change with the actual situation change during the heating operation. In this embodiment, the third preset time period is specifically 12 min.
And when the air conditioner starts to respond to the cleaning instruction to start heating operation, timing is started, when the timing duration reaches a third preset duration, namely the timing duration is greater than or equal to the third preset duration, the air conditioner is controlled to finish responding to the cleaning instruction, and when the air conditioner finishes responding to the cleaning instruction, the air conditioner quits heating operation. Specifically, the air conditioner can be controlled to be shut down, and the air conditioner can be controlled to be switched to other operation modes from heating.
In order to guarantee that the first frequency, the first preset time and the third preset time coordinate and cooperate with each other to regulate and control the operation of the compressor, so as to guarantee that the effective sterilization time is long enough in the third preset time, on the basis, the set sterilization time when the sterilization rate can reach the set threshold (such as 90%) at the minimum effective sterilization temperature (such as 55 ℃) can be obtained, the time deviation between the third preset time and the set sterilization time is used as the time of the first preset time, and the first frequency can be determined according to the first preset time and the minimum effective sterilization temperature. And controlling the air conditioner to operate according to the steps S10 to S50 based on the determined first preset time length and the determined first frequency so as to further ensure that the sterilizing effect of the indoor heat exchanger in the cleaning state is effectively improved.
Further, another embodiment of the cleaning method of the air conditioner is provided based on the above embodiment. In this embodiment, referring to fig. 3, step S40 specifically includes:
step S41, controlling an outdoor fan of the air conditioner to increase the rotating speed to a first rotating speed;
the first rotating speed is larger than the current rotating speed of the indoor fan. Specifically, the first rotational speed may be a maximum wind speed of the outdoor fan. In addition, the rotating speed adjusting range is preset, and the sum of the current rotating speed of the indoor fan and the rotating speed adjusting range is used as the first rotating speed.
And step S42, when the outdoor fan runs at the first rotating speed for a second preset time, controlling the air conditioner to run at a second frequency, wherein the second frequency is greater than the first frequency.
The specific value of the second preset duration can be set according to actual requirements. The second preset time period may be the same time period as the first preset time period in the above-described embodiment, for example, 60 s. The second preset duration may also be a duration different from the first preset duration, for example, a duration shorter than the first preset duration, in an implementation manner of this embodiment, the second preset duration is specifically 20s, and in other embodiments, the second preset duration may also be set to other values, for example, 10s, 30s, and the like, according to an actual situation.
Specifically, timing can be started when the current rotating speed of the outdoor fan is increased to a first rotating speed, and if the timing time does not reach a second preset time, the outdoor fan keeps the first rotating speed to operate all the time; and if the timing duration reaches a second preset duration, controlling the air conditioner to operate at a second frequency.
The second frequency may be a preset frequency, or a frequency determined according to the current temperature state of the indoor heat exchanger. Specifically, in this embodiment, the second frequency is determined according to the currently acquired coil temperature, the preset target temperature, and the maximum operating frequency. Different coil temperatures, preset target temperatures and maximum operating frequencies correspond to different second frequencies, and the corresponding relation among the current coil temperature, the preset target temperature, the maximum operating frequency and the second frequency capable of further increasing the coil temperature of the indoor heat exchanger can be established in advance. And determining a second frequency corresponding to the current coil temperature, the preset target temperature and the maximum operation frequency based on the corresponding relation.
Wherein, the mode of determining the second frequency according to the currently acquired coil temperature, the preset target temperature and the maximum operating frequency comprises: determining the temperature difference between the currently acquired coil temperature and the preset target temperature; acquiring a frequency adjustment parameter corresponding to the temperature difference; determining the second frequency according to the frequency adjustment parameter and the maximum operating frequency; wherein the second frequency is less than or equal to the maximum operating frequency, the greater the temperature difference, the greater the second frequency. Specifically, the second frequency may be calculated by the frequency adjustment parameter and the maximum operating frequency, for example, in the present embodiment, the maximum operating frequency FmaxThe calculation formula between the frequency adjustment parameter m and the second frequency F is F ═ FmaxAnd m, substituting the maximum operation frequency and the determined frequency adjusting parameter into the formula, and taking the obtained calculation result as a second frequency required by the current compressor to operate. Specifically, the maximum operating frequency may be set to 80Hz, and the value range of the frequency adjustment parameter is [0.8, 1.0 ]]Within this range, a corresponding value is determined as the frequency adjustment parameter based on the temperature difference, and the frequency adjustment parameter is increased as the temperature difference is increased. Frequency adjusting parameter corresponding to temperature difference of 2 DEGThe number is 0.8, and based on this, the maximum operating frequency of 80Hz and the frequency adjustment parameter of 0.8 are substituted into the above formula, so that the second frequency F is 80 × 0.8 — 64Hz, and the original first frequency of 60Hz of the compressor can be increased to the second frequency of 64 Hz; if the corresponding frequency adjustment parameter is 0.9 when the temperature difference is 4 degrees, and based on this, the maximum operating frequency of 80Hz and the frequency adjustment parameter of 0.9 are substituted into the above formula, the second frequency F is 80 × 0.9 — 81Hz, and the original first frequency of 60Hz of the compressor can be increased to the second frequency of 81 Hz.
Here, through steps S41 and S42, the outdoor fan is first increased to a high wind level, then the operating frequency of the compressor is increased, and the temperature of the coil pipe of the indoor heat exchanger is significantly increased through the coordination of the compressor and the outdoor fan, so that the temperature of the indoor heat exchanger can be rapidly increased to a temperature higher than the temperature required for sterilization, thereby creating a sufficient effective sterilization time for the subsequent process and effectively increasing the sterilization effect of the indoor unit.
Further, in the present embodiment, the step S40 may further include, in addition to the steps S41 and S42, a step S43: and controlling an air guide piece of the indoor unit of the air conditioner to reduce the air outlet area of an air outlet of the indoor unit, and/or controlling an indoor fan of the air conditioner to reduce the rotating speed. Wherein, the mode that the air guide of control indoor set reduced the air-out area of the air outlet of indoor set specifically includes: and controlling the air guide member to seal the air outlet, or controlling the air guide member to adjust from a position of completely opening the air outlet to a position of partially shielding the air outlet, and the like. By the method, the temperature of the coil pipe of the indoor heat exchanger can be quickly increased to the preset target temperature through a plurality of temperature increasing means. The sequence of the steps S41, S42 and S43 is not limited in detail.
Further, based on the above embodiments, another embodiment of the cleaning method of the air conditioner of the present application is provided. In this embodiment, referring to fig. 4, after the step S30, the method may further include:
when the coil temperature satisfies the preset target temperature, step S70 is performed.
Step S70, judging whether the temperature of the coil is smaller than a preset temperature threshold value;
when the coil temperature is greater than or equal to a preset temperature threshold value, executing step S71; when the coil temperature is less than the preset temperature threshold, step S72 is executed.
Step S71, controlling the compressor to reduce the current frequency to operate;
and step S72, controlling the compressor to maintain the current frequency operation.
The temperature of the coil pipe meets the preset target temperature, namely the temperature of the coil pipe is greater than or equal to the preset target temperature, and the sterilization effect of the indoor heat exchanger is in a better state at the moment. At this time, whether the temperature of the coil is smaller than a preset temperature threshold value is further judged.
The preset temperature threshold refers to the maximum coil temperature of the indoor heat exchanger allowed by the system high pressure (the pressure on the exhaust side of the compressor) when the system can be ensured to operate reliably, and the specific size can be set according to the actual condition of the air conditioner. The temperature of the coil pipe is larger than or equal to the preset temperature threshold value, which indicates that the current coil pipe temperature of the indoor heat exchanger is too high, and the reliability problem of the air conditioner can be caused, and at the moment, the compressor is controlled to reduce the frequency of the coil pipe temperature of the indoor heat exchanger, so that the reliable operation of the air conditioner is ensured. The frequency reduction amplitude of the compressor can be determined according to the temperature difference between the coil temperature and the preset target temperature, so that the temperature of the coil is prevented from being reduced too much after frequency reduction, the temperature of the coil subjected to frequency reduction is ensured to be reduced to a temperature between the preset target temperature and a preset temperature threshold value, and the indoor unit is ensured to have a better sterilization effect while the air conditioner is ensured to operate reliably. And the current temperature of the coil pipe is greater than or equal to the preset target temperature and less than the preset temperature threshold value, which indicates that the current air conditioner can realize the consideration of reliability and sterilization effect, so that the compressor can maintain the current frequency operation, and the air conditioner can be maintained in a better performance state.
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 cleaning methods for an air conditioner.
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. A method of cleaning an air conditioner, comprising the steps of:
controlling the compressor to operate at a first frequency in response to a cleaning command; the first frequency is greater than or equal to a set frequency, the set frequency being 50% of a maximum operating frequency of the compressor;
when the compressor runs at a first frequency for a first preset time length, acquiring the temperature of a coil pipe of an indoor heat exchanger;
judging whether the coil temperature of the indoor heat exchanger meets a preset target temperature or not;
if the coil temperature of the indoor heat exchanger does not meet the preset target temperature, controlling the air conditioner to operate in a preset operation mode, and acquiring the coil temperature of the indoor heat exchanger; continuing to execute the step of judging whether the coil temperature of the indoor heat exchanger meets a preset target temperature or not until the coil temperature of the indoor heat exchanger meets the preset target temperature;
wherein the step of controlling the air conditioner to operate in a preset operation mode comprises:
controlling an outdoor fan of the air conditioner to increase the rotating speed to a first rotating speed;
and when the outdoor fan runs at the first rotating speed for a second preset time, controlling the compressor of the air conditioner to run at a second frequency, wherein the second frequency is greater than the first frequency.
2. The cleaning method of an air conditioner according to claim 1, wherein the step of controlling the air conditioner to operate in a preset operation mode comprises:
controlling an air guide piece of the indoor unit of the air conditioner to reduce the air outlet area of an air outlet of the indoor unit; and/or the presence of a gas in the gas,
and controlling an indoor fan of the air conditioner to reduce the rotating speed.
3. The cleaning method of an air conditioner according to claim 1, wherein the step of controlling the air conditioner to operate in a preset operation mode comprises:
and controlling an outdoor fan of the air conditioner to increase the rotating speed.
4. The cleaning method of an air conditioner according to claim 1, wherein the step of controlling the air conditioner to operate in a preset operation mode comprises:
controlling a compressor of the air conditioner to operate at a second frequency, wherein the second frequency is greater than the first frequency.
5. The method of cleaning an air conditioner according to claim 1, wherein the second frequency is determined according to the currently acquired coil temperature, the preset target temperature, and the maximum operation frequency.
6. The method of cleaning an air conditioner according to claim 5, wherein the determining the second frequency according to the currently acquired coil temperature, the preset target temperature and the maximum operation frequency comprises:
determining the temperature difference between the currently acquired coil temperature and the preset target temperature;
acquiring a frequency adjustment parameter corresponding to the temperature difference;
determining the second frequency according to the frequency adjustment parameter and the maximum operating frequency;
wherein the second frequency is less than or equal to the maximum operating frequency, the greater the temperature difference, the greater the second frequency.
7. The method for cleaning an air conditioner according to claim 1, wherein the step of obtaining the temperature of the coil of the indoor heat exchanger is followed by further comprising:
when the temperature of the coil pipe meets the preset target temperature and is smaller than a preset temperature threshold value, controlling the compressor to maintain the current frequency operation;
when the temperature of the coil pipe meets the preset target temperature and is greater than or equal to the preset temperature threshold value, controlling the compressor to reduce the current frequency to operate;
wherein the preset target temperature is less than the preset temperature threshold.
8. The cleaning method of an air conditioner according to any one of claims 1 to 7, further comprising, after the step of controlling the compressor to operate at the first frequency in response to the cleaning command:
when the duration of the air conditioner responding to the cleaning instruction reaches a third preset duration, controlling the air conditioner to finish responding to the cleaning instruction; and the third preset time length is greater than the first preset time length.
9. The cleaning method of an air conditioner according to any one of claims 1 to 7, further comprising, after the step of controlling the air conditioner to operate in a preset operation mode:
and when the compressor runs for a fourth preset time length in the preset running mode, executing the step of acquiring the temperature of the coil pipe of the indoor heat exchanger.
10. An air conditioner, characterized in that the air conditioner comprises: 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 method of cleaning an air conditioner as claimed in any one of claims 1 to 9.
11. A readable storage medium, characterized in that an air-conditioning control program is stored thereon, which when executed by a processor implements the steps of the cleaning method of an air conditioner according to any one of claims 1 to 9.
CN202010807209.4A 2020-08-12 2020-08-12 Cleaning method of air conditioner, air conditioner and readable storage medium Active CN111981646B (en)

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CN113847683B (en) * 2021-09-09 2022-10-28 珠海格力电器股份有限公司 Cleaning control method and device for air conditioner, processor and air conditioning system
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