CN111750484A - Air conditioner, multi-online degerming control method and device and multi-online system - Google Patents
Air conditioner, multi-online degerming control method and device and multi-online system Download PDFInfo
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- CN111750484A CN111750484A CN202010566779.9A CN202010566779A CN111750484A CN 111750484 A CN111750484 A CN 111750484A CN 202010566779 A CN202010566779 A CN 202010566779A CN 111750484 A CN111750484 A CN 111750484A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F11/80—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
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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
- 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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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Abstract
The invention provides an air conditioner, a multi-online degerming control method and device and a multi-online system, wherein the method comprises the following steps: after the air conditioner enters a sterilization mode, recording sterilization time; adjusting the exhaust temperature of the compressor to make the exhaust temperature fall into a degerming temperature range; adjusting the supercooling degree of the indoor unit to enable the supercooling degree to fall into a degerming supercooling degree range; and exiting the degerming mode after the degerming time is longer than the preset time. Therefore, the air conditioner can be maintained in a certain high-temperature environment, and microorganisms such as bacteria, fungi, mold and the like on the surface of the heat exchanger are inactivated, so that the aim of high-temperature sterilization is fulfilled; like this through pasteurization, the sterilization efficiency is high and do not have the risk of leaking the harm human body, has satisfied the requirement of degerming efficiency and security simultaneously. In addition, the supercooling degree is adjusted, so that the heat exchanger of the indoor unit is uniformly heated, and an ideal sterilization effect is achieved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner, a multi-online degerming control method and device and a multi-online system.
Background
The heat exchanger of the indoor unit is one of main parts of an air conditioner, and because the fin structure of the heat exchanger is complex and the gap is narrow, after the heat exchanger is used for a period of time, dust is easily accumulated on the surface of the fin of the heat exchanger, bacteria or mould are bred, and the air supply quality of the indoor unit is affected, so that the heat exchanger of the indoor unit needs to be sterilized.
The existing common sterilization methods are filter screen sterilization and ultraviolet sterilization, but the efficiency of the filter screen sterilization is very low, the ultraviolet sterilization has leakage risk, and the human body harm is easily caused.
Therefore, there is a need for an efficient and safe sterilization method for sterilizing the indoor heat exchanger.
Disclosure of Invention
The invention solves the problem that the efficiency and the safety of the existing sterilization method can not be simultaneously satisfied.
In order to solve the above problems, the present invention first provides a sterilization control method for an air conditioner, which comprises:
after the air conditioner enters a sterilization mode, recording sterilization time;
adjusting the exhaust temperature of the compressor to make the exhaust temperature fall into a degerming temperature range;
adjusting the supercooling degree of the indoor unit to enable the supercooling degree to fall into a degerming supercooling degree range;
and exiting the degerming mode after the degerming time is longer than the preset time.
Therefore, the air conditioner can be maintained in a certain high-temperature environment, and microorganisms such as bacteria, fungi, mold and the like on the surface of the heat exchanger are inactivated, so that the aim of high-temperature sterilization is fulfilled; like this through pasteurization, the sterilization efficiency is high and do not have the risk of leaking the harm human body, has satisfied the requirement of degerming efficiency and security simultaneously. In addition, the supercooling degree is adjusted, so that the heat exchanger of the indoor unit is uniformly heated, and an ideal sterilization effect is achieved.
Optionally, after the air conditioner enters the degerming control mode, record degerming time, still include: and controlling the indoor unit to operate at a low wind speed, and adjusting the air guide door to an upward air outlet position.
Thus, the air with high temperature can be prevented from blowing to the user and affecting the comfort.
Optionally, after the degerming time is longer than the preset time and the degerming mode is exited, the method further includes:
and after the first preset time, the inner fan is closed.
Therefore, the waste heat of the heat exchanger of the indoor unit can be dissipated, and the deformation of devices caused by local high temperature after the inner fan stops rotating is prevented.
Optionally, the exhaust temperature is determined to fall within the sterilization temperature range when the following conditions are satisfied:
the exhaust temperature is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold.
Therefore, the exhaust temperature is limited in the range of the area through the first temperature threshold and the second temperature threshold, so that high-temperature sterilization can be performed, and damage to devices of the indoor unit caused by overhigh temperature is avoided.
Optionally, the adjusting the exhaust temperature of the compressor to fall within the sterilization temperature range includes:
periodically detecting the discharge temperature of the compressor;
comparing the magnitude relation of the exhaust temperature with the first temperature threshold and the second temperature threshold;
if the exhaust temperature is smaller than the first temperature threshold value, the current rotating speed of the compressor is increased;
if the exhaust temperature is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, maintaining the rotating speed of the compressor;
and if the exhaust temperature is greater than the second temperature threshold value, exiting the degerming mode.
In this way, adjusting the compressor speed controls the discharge temperature between the first temperature threshold and the second temperature threshold, optimizes the discharge temperature, and prevents temperature protection from occurring.
Optionally, when the following conditions are met, determining that the supercooling degree falls into the degerming supercooling degree range:
and the supercooling degree is less than or equal to a preset supercooling value.
Therefore, the heat exchanger is heated uniformly, and the copper pipe and the fins of the heat exchanger are heated by the high-temperature gaseous refrigerant, so that the whole heat exchanger is in a high-temperature environment, and an ideal sterilization effect is achieved.
Optionally, the degree of supercooling of the indoor unit is adjusted to fall into the degerming degree of supercooling range, and the method includes:
periodically detecting the inlet pipe temperature and the outlet pipe temperature of the heat exchanger of the indoor unit;
calculating the supercooling degree of the indoor unit according to the inlet pipe temperature and the outlet pipe temperature;
if the supercooling degree is greater than the preset supercooling value, controlling an electronic expansion valve of the indoor unit to increase the opening degree, wherein the electronic expansion valve is arranged at the position of an outlet pipe of a heat exchanger of the indoor unit;
and if the supercooling degree is less than or equal to the preset supercooling value, maintaining the opening degree of the electronic expansion valve.
Therefore, the supercooling degree of the indoor unit is controlled within a certain range, so that the heat exchanger is heated uniformly, and an ideal sterilization effect is ensured.
Secondly, provide a degerming controlling means of air conditioner, it includes:
the recording unit is used for recording the sterilization time after the air conditioner enters the sterilization mode;
the adjusting unit is used for adjusting the exhaust temperature of the compressor to be within the degerming temperature range;
the system is also used for adjusting the supercooling degree of the indoor unit to enable the supercooling degree to fall into the degerming supercooling degree range;
and the control unit is used for exiting the sterilization mode after the sterilization time is longer than the preset time.
Therefore, the air conditioner can be maintained in a certain high-temperature environment, and microorganisms such as bacteria, fungi, mold and the like on the surface of the heat exchanger are inactivated, so that the aim of high-temperature sterilization is fulfilled; like this through pasteurization, the sterilization efficiency is high and do not have the risk of leaking the harm human body, has satisfied the requirement of degerming efficiency and security simultaneously. In addition, the supercooling degree is adjusted, so that the heat exchanger of the indoor unit is uniformly heated, and an ideal sterilization effect is achieved.
Then, a multi-online degerming control method is provided, which comprises the following steps:
after a sterilization instruction is received, the operation modes of all indoor units are obtained, wherein the indoor units comprise sterilization indoor units and non-sterilization indoor units;
according to the operation mode of the indoor unit, the operation of the indoor unit is adjusted, and then the sterilization indoor unit is controlled to enter a sterilization mode;
and performing sterilization control on the sterilization indoor unit entering the sterilization mode according to the sterilization control method of the air conditioner.
Therefore, the indoor units in the multi-split system which need to be sterilized can be sterilized, and an ideal sterilization effect is achieved; the air conditioner can be maintained in a certain high-temperature environment through high-temperature sterilization, so that microorganisms such as bacteria, fungi, mold and the like on the surface of the heat exchanger are inactivated, and the aim of high-temperature sterilization is fulfilled; like this through pasteurization, the sterilization efficiency is high and do not have the risk of leaking the harm human body, has satisfied the requirement of degerming efficiency and security simultaneously.
Optionally, according to the operation mode of the indoor unit, after the operation of the indoor unit is adjusted, the sterilizing indoor unit is controlled to enter a sterilizing mode, including:
judging whether the degerming indoor unit has special authority or not;
if the degerming indoor units do not have the special authority, judging whether the non-degerming indoor units with the operation modes of a refrigeration mode or a dehumidification mode exist;
and if the non-degerming indoor unit with the operation mode being the refrigeration mode or the dehumidification mode exists, quitting the degerming control.
When the non-sterilization indoor unit with the operation mode of the refrigeration mode or the dehumidification mode exits the sterilization control, the situation that the outdoor unit cannot normally operate under the opposite control instruction when the sterilization control of the sterilization indoor unit is continued can be avoided, and the normal operation and use of the outdoor unit and the non-sterilization indoor unit are ensured.
Optionally, if the degerming indoor unit does not have the special permission, then judge whether there is the running mode behind the non-degerming indoor unit that is the refrigeration mode or dehumidification mode, include:
if the non-degerming indoor unit with the operation mode of the refrigeration mode or the dehumidification mode does not exist, the degerming indoor units are controlled to enter the degerming mode after shutdown control is executed on the degerming indoor units with the operation mode of the refrigeration mode or the dehumidification mode.
Like this, can avoid because there is the operational mode of refrigeration mode or dehumidification mode in the degerming indoor set and lead to the unable condition that gets into the degerming mode of this part degerming indoor set, guarantee the normal degerming of degerming indoor set.
Optionally, after determining whether the degerming internal machine has a special authority, the method further includes:
if at least one of the degerming indoor units has the special authority, executing shutdown control on the non-degerming indoor unit with the operation mode being a refrigeration mode or a dehumidification mode;
and after the sterilization indoor units with the operation modes of refrigeration or dehumidification are subjected to shutdown control, all the sterilization indoor units are controlled to enter a sterilization mode.
Like this, under the condition that the degerming internal unit has special authority, guarantee the operation demand of the degerming internal unit that has special authority, guarantee the normal degerming of degerming internal unit.
There is provided a multi-online sterilization control apparatus, including:
the device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the operation modes of all indoor units after receiving a sterilization instruction, and the indoor units comprise sterilization indoor units and non-sterilization indoor units;
the regulation and control unit is used for regulating the operation of the indoor unit according to the operation mode of the indoor unit and then controlling the degerming indoor unit to enter a degerming mode;
and the sterilization unit is used for performing sterilization control on the sterilization indoor unit entering the sterilization mode according to the air conditioner sterilization control method.
Therefore, the indoor units in the multi-split system which need to be sterilized can be sterilized, and an ideal sterilization effect is achieved; the air conditioner can be maintained in a certain high-temperature environment through high-temperature sterilization, so that microorganisms such as bacteria, fungi, mold and the like on the surface of the heat exchanger are inactivated, and the aim of high-temperature sterilization is fulfilled; like this through pasteurization, the sterilization efficiency is high and do not have the risk of leaking the harm human body, has satisfied the requirement of degerming efficiency and security simultaneously.
There is provided a multi-split system including a processor and a computer-readable storage medium storing a computer program, the computer program being read by the processor and executed to implement the air conditioner sterilization control method or the multi-split sterilization control method.
Therefore, the indoor units in the multi-split system which need to be sterilized can be sterilized, and an ideal sterilization effect is achieved; and the air conditioner can be maintained in a certain high-temperature environment through high-temperature sterilization, so that microorganisms such as bacteria, fungi, mold and the like on the surface of the heat exchanger are inactivated, and the aim of high-temperature sterilization is fulfilled.
Finally, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, which when read and executed by a processor, implements the air conditioner sterilization control method or implements the multi-split sterilization control method.
Like this through pasteurization, the sterilization efficiency is high and do not have the risk of leaking the harm human body, has satisfied the requirement of degerming efficiency and security simultaneously.
Drawings
FIG. 1 is a flowchart illustrating a sterilization control method for an air conditioner according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a sterilization control method for an air conditioner according to another embodiment of the present invention;
FIG. 3 is a flowchart of the sterilization control method steps 200 of the air conditioner according to the embodiment of the present invention;
FIG. 4 is a flowchart of the sterilization control method steps 300 of the air conditioner according to the embodiment of the present invention;
FIG. 5 is a block diagram illustrating an exemplary embodiment of a sterilization control apparatus for an air conditioner;
FIG. 6 is a flowchart of a multi-online sterilization control method according to an embodiment of the present invention;
FIG. 7 is a flowchart illustrating a multi-online degerming control method according to an embodiment of the present invention;
FIG. 8 is a flowchart of a multi-online sterilization control method according to another embodiment of the present invention;
FIG. 9 is a flowchart of a multi-online sterilization control method according to still another embodiment of the present invention;
fig. 10 is a block diagram illustrating a configuration of a multi-online sterilization control apparatus according to an embodiment of the present invention.
Description of reference numerals:
1-recording unit, 2-regulating unit, 3-control unit, 4-obtaining unit, 5-regulating unit and 6-degerming unit.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. 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.
For easy understanding, in the present invention, technical problems therein need to be elaborated.
In the field of air conditioners, the names of the heat exchangers of the indoor unit and the outdoor unit are divided into two cases, one is named according to different installation positions, namely, the heat exchanger on the indoor unit side is called as an evaporator, and the heat exchanger on the outdoor unit side is called as a condenser; one is named according to the difference in the functions of the heat exchangers, that is, the heat exchanger functioning to evaporate and absorb heat (for the internal refrigerant) is called an evaporator, and the heat exchanger functioning to condense and release heat (for the internal refrigerant) is called a condenser, so that the heat exchanger on the indoor unit side is called an evaporator, the heat exchanger on the outdoor unit side is called a condenser, and the heat exchanger on the indoor unit side is called a condenser, and the heat exchanger on the outdoor unit side is called an evaporator in the heating mode.
In this application, to prevent confusion, the condenser is a heat exchanger provided on the outdoor unit side, and the evaporator is a heat exchanger provided on the indoor unit side.
The disclosed embodiments provide a sterilization control method for an air conditioner, which may be performed by an air conditioner sterilization control device that may be integrated into an electronic apparatus such as an air conditioner, an air conditioner control device, and the like. Fig. 1 is a flowchart illustrating an air conditioner sterilization control method according to an embodiment of the present invention; the air conditioner degerming control method comprises the following steps:
the air conditioner enters the degerming mode, the degerming mode can be entered under the control of the air conditioner, and the degerming mode can also be entered after the air conditioner receives an external instruction.
And the degerming time is counted from the time when the air conditioner enters the degerming mode until the degerming mode is exited. And after exiting the degerming mode, clearing the degerming time.
After the air conditioner enters the sterilization mode, the operation conditions of the outdoor unit and the indoor unit are similar to the operation conditions of the outdoor unit in the heating mode; the heat exchanger of the outdoor unit absorbs heat by evaporation, and the heat exchanger of the indoor unit condenses to release heat, so that the temperature of the indoor unit is increased, and high-temperature sterilization is performed.
Optionally, in step 100, after the air conditioner enters the sterilization control mode, recording the sterilization time, further including: and controlling the indoor unit to operate at a low wind speed, and adjusting the air guide door to an upward air outlet position. Thus, the air with high temperature can be prevented from blowing to the user and affecting the comfort.
It should be noted that, the low-wind-speed operation of the indoor unit is maintained, on one hand, the temperature distribution of the indoor unit is more uniform through the flowing of air, and the local high temperature is avoided, so that the sterilization effect is increased; on the other hand, the problem that the temperature maintenance of the indoor unit is influenced because the heat exchange between the indoor unit and the indoor environment is too frequent is avoided.
the exhaust temperature is adjusted to be maintained in a degerming temperature range, so that a certain high-temperature environment is achieved and maintained, microorganisms such as bacteria, fungi and mold on the surface of the heat exchanger are inactivated, and the purpose of high-temperature degerming is achieved.
after the high-temperature gaseous refrigerant discharged from the compressor passes through the heat exchanger, the temperature difference between two ends of the heat exchanger is large due to the temperature reduction, so whether the heat exchanger (evaporator) of the indoor unit is uniformly heated or not can be reflected through the supercooling degree of the indoor unit; falling into the range of degerming supercooling degree means that the heat exchanger (evaporator) of the indoor unit is heated uniformly, and an ideal degerming effect can be achieved.
And step 400, exiting the sterilization mode after the sterilization time is longer than a preset time.
Quit from the degerming mode through the degerming time, can increase the degerming effect like this, and need not to detect other data, simple and convenient.
Preferably, the value range of the preset time is 30-60 min; through setting the preset duration, the indoor unit can have sufficient degerming time, so that the optimal degerming effect is ensured.
Thus, through the step 100-400, the air conditioner can be maintained in a certain high-temperature environment, and microorganisms such as bacteria, fungi, mold and the like on the surface of the heat exchanger are inactivated, so that the purpose of high-temperature sterilization is realized; like this through pasteurization, the sterilization efficiency is high and do not have the risk of leaking the harm human body, has satisfied the requirement of degerming efficiency and security simultaneously. In addition, the supercooling degree is adjusted, so that the heat exchanger of the indoor unit is uniformly heated, and an ideal sterilization effect is achieved.
In addition, the internal environment of the air conditioner is purified by utilizing the control of the air conditioner, so that the air blown out by the indoor unit is more comfortable and healthy, and the cost of the air conditioner is not increased. The degerming temperature and time are increased, and the degerming effect is more thorough.
Optionally, as shown in fig. 2, after the sterilization time is longer than the preset time period and the sterilization mode is exited, the step 400 further includes:
and 500, after the first preset time, closing the inner fan.
That is, after exiting the degerming mode, the internal fan is turned off after timing the first preset time.
Therefore, the waste heat of the heat exchanger of the indoor unit can be dissipated, and the deformation of devices caused by local high temperature after the inner fan stops rotating is prevented.
Optionally, the value range of the first preset time is 30s to 180 s; therefore, a large amount of heat can be discharged in a short time, the temperature of the indoor unit is reduced to a temperature range which is not easy to deform, and deformation is avoided; and the heat extraction time is short, thereby avoiding influencing the normal use of the air conditioner.
Optionally, the exhaust temperature is determined to fall within the sterilization temperature range when the following conditions are satisfied:
the exhaust temperature is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold.
Therefore, the exhaust temperature is limited in the range of the area through the first temperature threshold and the second temperature threshold, so that high-temperature sterilization can be performed, and damage to devices of the indoor unit caused by overhigh temperature is avoided.
Optionally, as shown in fig. 3, the step 200 of adjusting the discharge temperature of the compressor to fall within the sterilization temperature range includes:
through periodic detection exhaust temperature to follow-up adjustment, can detect and adjust the exhaust temperature of compressor constantly, thereby maintain it in suitable temperature range, reach ideal bactericidal effect.
Optionally, the value range of the detection period is 1-3 min. Thus, on the one hand, the detection is avoided from being too frequent; on the other hand, the exhaust temperature is prevented from being deviated from the proper temperature range for a long time.
and comparing and judging the magnitude relation between the exhaust temperature and the first temperature threshold and the magnitude relation between the exhaust temperature and the second temperature threshold, so as to determine the range of the current exhaust temperature.
Step 230, if the exhaust temperature is less than the first temperature threshold, increasing the current rotating speed of the compressor;
a temperature lower than the first temperature threshold means that the discharge temperature does not reach the sterilization temperature, and therefore the rotation speed of the compressor needs to be increased to increase the discharge temperature (for the effect of increasing the discharge temperature, it can be determined in the detection and determination of the next cycle).
When the exhaust temperature value is detected to be low, the compressor is controlled to increase the running rotating speed, the exhaust temperature can be increased, but the exhaust temperature is increased by a process, so that a detection period is set, and detection judgment is performed once again after the period is met.
Optionally, the value range of the first temperature threshold is 60-80 ℃. In this way, the sterilization temperature is divided by the first temperature threshold, so that the sterilization effect of the sterilization temperature is stronger.
Step 240, if the exhaust temperature is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, maintaining the rotation speed of the compressor;
when the exhaust temperature of the compressor is higher than a limit value, the over-high protection of the exhaust temperature occurs, so as to protect the use reliability of the compressor; the second temperature threshold is a temperature protection value, and is larger than the second temperature threshold, which means that the exhaust temperature is higher than the protection value, and the air conditioner is easy to trigger fault shutdown.
The fact that the discharge temperature is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold means that the discharge temperature reaches the sterilization temperature and does not exceed the protection value, and therefore the discharge temperature needs to be maintained within the interval, that is, the rotation speed of the compressor needs to be maintained.
In addition, through periodic detection and judgment, the situation that the exhaust temperature exceeds the interval due to continuous rising or falling of the exhaust temperature under the condition of maintaining the rotating speed of the compressor can be reduced, and temperature adjustment is performed in time.
Optionally, the value range of the second temperature threshold is 80-100 ℃. In this way, on the one hand, the range of the exhaust gas temperature can be increased, and on the other hand, the exhaust gas temperature is prevented from being too high to trigger the fault shutdown.
In step 250, if the exhaust temperature is greater than the second temperature threshold, the degerming mode is exited.
The second temperature threshold is a temperature protection value, and is greater than the second temperature threshold, which means that the exhaust temperature is higher than the protection value, and the air conditioner is easy to trigger fault shutdown; it is therefore desirable to exit the sterilization mode to avoid failure.
Thus, by step 210-250, adjusting the compressor speed controls the discharge temperature between the first temperature threshold and the second temperature threshold, optimizes the discharge temperature, and prevents temperature protection from occurring.
Optionally, when the following conditions are met, determining that the supercooling degree falls into the degerming supercooling degree range:
and the supercooling degree is less than or equal to a preset supercooling value.
The supercooling degree is smaller than or equal to a preset supercooling value, namely the temperature difference between the inlet and the outlet of the heat exchanger is in a certain range, the heat exchanger is considered to be uniformly heated, and a copper pipe and fins of the heat exchanger are heated by the high-temperature gaseous refrigerant, so that the whole heat exchanger is in a high-temperature environment, and an ideal sterilization effect is achieved.
The high-temperature gaseous refrigerant is cooled by the fins after entering the heat exchanger, the temperature is gradually reduced, the inlet temperature is high, the outlet temperature is low, and the uneven heating of the heat exchanger is indicated when the temperature difference between the outlet and the inlet is large.
Optionally, as shown in fig. 4, in step 300, adjusting the supercooling degree of the indoor unit to make the supercooling degree of the indoor unit fall into the degerming supercooling degree range includes:
through periodic detection income pipe temperature and exit pipe temperature to follow-up adjusting, can detect and adjust income pipe temperature and exit pipe temperature constantly, thereby maintain it in suitable temperature range, reach ideal bactericidal effect.
Optionally, the value range of the detection period is 1-3 min. Thus, on the one hand, the detection is avoided from being too frequent; on the other hand, the supercooling degree is prevented from deviating from the proper supercooling degree range for a long time.
and the supercooling degree of the indoor unit is the difference value between the temperature of an inlet pipe and the temperature of an outlet pipe.
the supercooling degree is larger than the preset supercooling value, which means that the temperature difference between the inlet and the outlet of the indoor unit heat exchanger is large, the temperature of the refrigerant at the outlet is reduced, and the refrigerant is easy to stay in the heat exchanger after being liquefied, so that the sterilization effect is not ideal.
The opening of the electronic expansion valve is adjusted, so that the flow of the refrigerant can be adjusted; if the supercooling degree is reduced, the electronic expansion valve is controlled to increase the opening degree, so that the refrigerant passes through the heat exchanger in an accelerated manner, the heat loss in the heat exchanger is reduced, the temperature at the outlet can be increased, the temperature difference at two ends of the heat exchanger is reduced, and the heat exchanger is heated more uniformly.
The electronic expansion valve is arranged on an outlet pipeline of the indoor unit heat exchanger, so as to control the refrigerant flowing on the outlet pipeline of the indoor unit heat exchanger.
And 340, if the supercooling degree is less than or equal to the preset supercooling value, maintaining the opening degree of the electronic expansion valve.
The supercooling degree is less than or equal to a preset supercooling value, which means that the temperature difference between the inlet and the outlet of the heat exchanger is in a certain range, the heat exchanger is heated uniformly, and an ideal sterilization effect is achieved. Therefore, it is necessary to maintain the degree of supercooling of the indoor unit within this range, that is, to maintain the opening degree of the electronic expansion valve.
In addition, the condition that the supercooling degree exceeds the interval due to continuous rising or falling of the supercooling degree under the condition of maintaining the opening degree of the electronic expansion valve can be reduced by periodically detecting and judging, and the supercooling degree is adjusted in time.
Optionally, the value range of the preset supercooling value is 0-10 ℃. Like this, can reduce the difference in temperature scope of income pipe temperature and exit tube temperature for the heat exchanger of judging is heated more evenly, reaches ideal bactericidal effect.
Therefore, through the step 310 and the step 340, the supercooling degree of the indoor unit is controlled within a certain range, so that the heat exchanger is heated uniformly, and an ideal sterilization effect is ensured.
The embodiment of the present disclosure provides an air conditioner degerming control device, which is used for executing the air conditioner degerming control method described in the above, and the air conditioner degerming control device is described in detail below.
As shown in fig. 5, the air conditioner sterilization control apparatus includes:
the recording unit 1 is used for recording the sterilization time after the air conditioner enters the sterilization mode;
an adjusting unit 2 for adjusting the exhaust temperature of the compressor to fall within the sterilization temperature range;
the system is also used for adjusting the supercooling degree of the indoor unit to enable the supercooling degree to fall into the degerming supercooling degree range;
and the control unit 3 is used for exiting the sterilization mode after the sterilization time is longer than the preset time.
Therefore, the air conditioner can be maintained in a certain high-temperature environment, and microorganisms such as bacteria, fungi, mold and the like on the surface of the heat exchanger are inactivated, so that the aim of high-temperature sterilization is fulfilled; like this through pasteurization, the sterilization efficiency is high and do not have the risk of leaking the harm human body, has satisfied the requirement of degerming efficiency and security simultaneously. In addition, the supercooling degree is adjusted, so that the heat exchanger of the indoor unit is uniformly heated, and an ideal sterilization effect is achieved.
In addition, the internal environment of the air conditioner is purified by utilizing the control of the air conditioner, so that the air blown out by the indoor unit is more comfortable and healthy, and the cost of the air conditioner is not increased. The degerming temperature and time are increased, and the degerming effect is more thorough.
Optionally, the recording unit 1 is further configured to: and controlling the indoor unit to operate at a low wind speed, and adjusting the air guide door to an upward air outlet position.
Optionally, the control unit 3 is further configured to: and after the first preset time, the inner fan is closed.
Optionally, the exhaust temperature is determined to fall within the sterilization temperature range when the following conditions are satisfied: the exhaust temperature is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold.
Optionally, the adjusting unit 2 is further configured to: periodically detecting the discharge temperature of the compressor; comparing the magnitude relation of the exhaust temperature with the first temperature threshold and the second temperature threshold; if the exhaust temperature is smaller than the first temperature threshold value, the current rotating speed of the compressor is increased; if the exhaust temperature is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, maintaining the rotating speed of the compressor; and if the exhaust temperature is greater than the second temperature threshold value, exiting the degerming mode.
Optionally, when the following conditions are met, determining that the supercooling degree falls into the degerming supercooling degree range: and the supercooling degree is less than or equal to a preset supercooling value.
Optionally, the adjusting unit 2 is further configured to: periodically detecting the inlet pipe temperature and the outlet pipe temperature of the heat exchanger of the indoor unit; calculating the supercooling degree of the indoor unit according to the inlet pipe temperature and the outlet pipe temperature; if the supercooling degree is greater than the preset supercooling value, controlling an electronic expansion valve of the indoor unit to increase the opening degree, wherein the electronic expansion valve is arranged at the position of an outlet pipe of a heat exchanger of the indoor unit; and if the supercooling degree is less than or equal to the preset supercooling value, maintaining the opening degree of the electronic expansion valve.
The disclosed embodiments provide a multi-online sterilization control method, which may be performed by a multi-online sterilization control device, which may be integrated in an electronic apparatus such as an air conditioner, a multi-online control device, or the like.
As shown in fig. 6, the multi-connected sterilization control method includes:
the sterilization instruction can be sent by a user through a remote controller, or sent by an indoor unit or a multi-online unit when sterilization is determined to be needed, or obtained in other manners. The actual form thereof may be other than the instruction form, as long as it can start the sterilization control of the multi-line.
Wherein the sterilization indoor unit is an indoor unit which needs sterilization; the non-sterilization indoor unit is an indoor unit which is started but does not need sterilization. Whether the indoor unit needs to be sterilized or not can be judged by the indoor unit, can also be judged by a multi-online system, and can also be obtained by information carried in a sterilization command.
The operation modes of the indoor unit include a cooling mode, a dehumidification mode, a heating mode, and a ventilation mode.
the operation states of the outdoor unit and the indoor unit in the sterilization mode are similar to those in the heating mode and are opposite to those in the cooling mode and the dehumidification mode. Therefore, in order to enter the sterilization mode, the cooling mode and the dehumidification mode in which the indoor unit is operating need to be adjusted first to avoid the case where the sterilization mode cannot be entered.
And step 30, performing sterilization control on the sterilization indoor unit entering the sterilization mode according to the air conditioner sterilization control method.
And performing sterilization control on each sterilization indoor unit entering the sterilization mode according to the air conditioner sterilization control method, which is not described herein again.
Therefore, the indoor units in the multi-split system which need to be sterilized can be sterilized, and an ideal sterilization effect is achieved; the air conditioner can be maintained in a certain high-temperature environment through high-temperature sterilization, so that microorganisms such as bacteria, fungi, mold and the like on the surface of the heat exchanger are inactivated, and the aim of high-temperature sterilization is fulfilled; like this through pasteurization, the sterilization efficiency is high and do not have the risk of leaking the harm human body, has satisfied the requirement of degerming efficiency and security simultaneously. In addition, the supercooling degree is adjusted, so that the heat exchanger of the indoor unit is uniformly heated, and an ideal sterilization effect is achieved.
Optionally, as shown in fig. 7, in step 20, controlling the degerming indoor unit to enter a degerming mode after adjusting the operation of the indoor unit according to the operation mode of the indoor unit, includes:
the indoor unit with the special authority has more priority processing characteristics relative to other indoor units in the same multi-split system. The special permission may take the form of a VIP, priority, etc.
the non-privileged condition means that the degerming internal machine does not have priority processing authority over the non-degerming internal machine in degerming control, and therefore, the degerming control of the degerming internal machine is not considered additionally.
And step 23, if the non-degerming indoor unit with the operation mode being the refrigeration mode or the dehumidification mode exists, quitting the degerming control.
The degerming indoor units in the indoor units are different indoor units of the same multi-split air-conditioning system, and degerming is performed on the degerming indoor units in the indoor units, so that the outdoor units are required to operate in a degerming mode (similar to a heating mode), and the degerming mode is opposite to the control of the cooling mode and the dehumidifying mode. That is, when the outdoor unit operates in the sterilization mode, the indoor unit connected thereto cannot operate in the cooling mode or the dehumidification mode.
Therefore, when the non-degerming indoor unit with the operation mode of the refrigeration mode or the dehumidification mode exists in the non-degerming indoor unit, the degerming indoor unit cannot be controlled to enter the degerming mode, otherwise, the outdoor unit is controlled by two completely opposite control instructions, and the outdoor unit cannot normally operate.
When the non-sterilization indoor unit with the operation mode of the refrigeration mode or the dehumidification mode exits the sterilization control, the situation that the outdoor unit cannot normally operate under the opposite control instruction when the sterilization control of the sterilization indoor unit is continued can be avoided, and the normal operation and use of the outdoor unit and the non-sterilization indoor unit are ensured.
Optionally, as shown in fig. 8, in the step 22, if none of the degerming internal machines has the special permission, determining whether there is a non-degerming internal machine whose operation mode is the cooling mode or the dehumidifying mode, and then including:
and 24, if the non-degerming indoor unit with the operation mode of the refrigeration mode or the dehumidification mode does not exist, controlling all the degerming indoor units to enter the degerming mode after executing shutdown control on the degerming indoor units with the operation mode of the refrigeration mode or the dehumidification mode.
To degerming the degerming indoor unit, it is necessary to ensure that the outdoor unit operates in a degerming mode (similar to a heating mode), and the degerming mode is controlled in opposition to a cooling mode and a dehumidifying mode. That is, when the outdoor unit is switched to the sterilization mode, it is necessary to ensure that the sterilization indoor units connected to the outdoor unit do not operate in the cooling mode or the dehumidification mode.
And executing shutdown control on the degerming indoor unit with the operation mode of the refrigeration mode or the dehumidification mode, namely, stopping the degerming indoor unit with the operation mode of the refrigeration mode or the dehumidification mode (or switching the degerming indoor unit into the standby mode) firstly, so that the condition that the degerming mode cannot be switched is avoided.
Controlling all the degerming indoor units to enter a degerming mode, namely executing shutdown control on the degerming indoor units of which the operation modes are a refrigeration mode or a dehumidification mode, and not processing the degerming indoor units of which the operation modes are a heating mode or a ventilation mode; and then directly controlling all the degerming internal machines to enter an out-sending mode.
Like this, can avoid because there is the operational mode of refrigeration mode or dehumidification mode in the degerming indoor set and lead to the unable condition that gets into the degerming mode of this part degerming indoor set, guarantee the normal degerming of degerming indoor set.
Optionally, as shown in fig. 9, after the step 21 of determining whether the degerming internal machine has the special authority, the method further includes:
having the special authority means that the operation requirement of the degerming indoor unit having the special authority needs to be met, compared with the steps 22-24, under the condition that only the degerming indoor unit has the special authority, if an indoor unit with an operation mode being a cooling mode or a dehumidifying mode exists in the non-degerming indoor unit, the degerming indoor unit is not directly quitted, and the degerming indoor unit is subjected to shutdown control (or is switched to a standby mode).
Like this, can guarantee the operation demand of the degerming indoor set that has special authority, guarantee the normal degerming of degerming indoor set.
In general, only one indoor unit with special authority exists in the multi-split air conditioning system, so that the conflict of different operation requirements of a plurality of indoor units with special authority can be avoided.
Particularly, if the multi-split air conditioner system has a plurality of indoor units with special authorities, corresponding operations are executed according to the steps 25 to 26 only when all the indoor units with special authorities are degerming indoor units; if the indoor units with special authority not only comprise the degerming indoor units, but also comprise the non-degerming indoor units, corresponding operation is executed according to the steps 22-24.
And 26, after the degerming indoor units with the operation modes of the refrigeration mode and the dehumidification mode are subjected to shutdown control, controlling all the degerming indoor units to enter a degerming mode.
The control process of this step is the same as that of step 24, and is not described herein again.
Like this, under the condition that the degerming internal unit has special authority, guarantee the operation demand of the degerming internal unit that has special authority, guarantee the normal degerming of degerming internal unit.
Optionally, the sterilization control of the multi-split system can be set as one-key sterilization or single sterilization, and the user can select the sterilization control according to the needs. For example, if a plurality of indoor units indicate a demand for sterilization, one-touch sterilization control may be selected, and if only one indoor unit indicates a demand for sterilization, individual sterilization control may be selected.
Optionally, the indoor units may set different degerming levels, and the preset durations and the preset supercooling values of the indoor units with different degerming levels during degerming control are different; when the air conditioner performs sterilization control, the air conditioner can firstly read the preset duration and the preset supercooling value of the corresponding sterilization grade, and then performs sterilization control.
The degerming grade can be set to be different optional grades I, II and III … … and respectively corresponds to different supercooling degrees Te1, Te2 and Te3 … … and degerming time t01, t02 and t03 … …, wherein the supercooling degree Te1 is more than Te2 and more than Te3, and the degerming time t01 is more than t02 is more than t03, so that different degerming scene requirements are met.
Wherein, the selectable grades of I, II and III … … indicate that the degerming capability is enhanced in sequence, and the grade I is suitable for areas with low degerming duration and low degerming frequency, such as areas with low air humidity and high air quality; the grade III is suitable for the scenes of areas with high air humidity (easy to breed bacteria) and poor air quality (such as haze weather) or special periods (virus epidemic) and the like; the level II is centered, and different degerming levels can be selected by a user according to actual needs.
Optionally, the sterilization level may be set by a user or an air conditioner service provider according to air conditioners including but not limited to controller dialing, key pressing, and the like, and different dialing or key pressing corresponds to different sterilization levels.
Optionally, the sterilization grade is set by a controller of the outdoor unit, and the sterilization grades of all the indoor units are kept consistent (determined by the outdoor unit), so that program conflict in the sterilization process is avoided.
The embodiment of the disclosure provides a multi-online degerming control device, which is used for executing the multi-online degerming control method of the disclosure, and the multi-online degerming control device is described in detail below.
As shown in fig. 10, the multi-split sterilizing control apparatus includes:
the obtaining unit 4 is used for obtaining the operation modes of all indoor units after receiving a sterilization instruction, wherein the indoor units comprise sterilization indoor units and non-sterilization indoor units;
the adjusting and controlling unit 5 is used for adjusting the operation of the indoor unit and then controlling the degerming indoor unit to enter a degerming mode according to the operation mode of the indoor unit;
and the sterilization unit 6 is used for performing sterilization control on the sterilization indoor unit entering the sterilization mode according to the air conditioner sterilization control method.
Therefore, the indoor units in the multi-split system which need to be sterilized can be sterilized, and an ideal sterilization effect is achieved; the air conditioner can be maintained in a certain high-temperature environment through high-temperature sterilization, so that microorganisms such as bacteria, fungi, mold and the like on the surface of the heat exchanger are inactivated, and the aim of high-temperature sterilization is fulfilled; like this through pasteurization, the sterilization efficiency is high and do not have the risk of leaking the harm human body, has satisfied the requirement of degerming efficiency and security simultaneously. In addition, the supercooling degree is adjusted, so that the heat exchanger of the indoor unit is uniformly heated, and an ideal sterilization effect is achieved.
Optionally, the regulatory unit 5 is further configured to: judging whether the degerming indoor unit has special authority or not; if the degerming indoor units do not have the special authority, judging whether the non-degerming indoor units with the operation modes of a refrigeration mode or a dehumidification mode exist; and if the non-degerming indoor unit with the operation mode being the refrigeration mode or the dehumidification mode exists, quitting the degerming control.
Optionally, the regulatory unit 5 is further configured to: if the non-degerming indoor unit with the operation mode of the refrigeration mode or the dehumidification mode does not exist, the degerming indoor units are controlled to enter the degerming mode after shutdown control is executed on the degerming indoor units with the operation mode of the refrigeration mode or the dehumidification mode.
Optionally, the regulatory unit 5 is further configured to: if at least one of the degerming indoor units has the special authority, executing shutdown control on the non-degerming indoor unit with the operation mode being a refrigeration mode or a dehumidification mode; and after the sterilization indoor units with the operation modes of refrigeration or dehumidification are subjected to shutdown control, all the sterilization indoor units are controlled to enter a sterilization mode.
The embodiment of the present disclosure provides a multi-split system, including a computer-readable storage medium storing a computer program and a processor, where the computer program is read by the processor and executed to implement the air conditioner degerming control method as described above, or to implement the multi-split degerming control method as described above.
Therefore, the indoor units in the multi-split system which need to be sterilized can be sterilized, and an ideal sterilization effect is achieved; the air conditioner can be maintained in a certain high-temperature environment through high-temperature sterilization, so that microorganisms such as bacteria, fungi, mold and the like on the surface of the heat exchanger are inactivated, and the aim of high-temperature sterilization is fulfilled; like this through pasteurization, the sterilization efficiency is high and do not have the risk of leaking the harm human body, has satisfied the requirement of degerming efficiency and security simultaneously. In addition, the supercooling degree is adjusted, so that the heat exchanger of the indoor unit is uniformly heated, and an ideal sterilization effect is achieved.
The disclosed embodiments also provide a computer-readable storage medium storing instructions that, when loaded and executed by a processor, may implement the aforementioned air conditioner sterilization control method, or the aforementioned multi-split sterilization control method.
The technical solution of the embodiment of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution 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 an air conditioner, a refrigeration device, a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method of the embodiment of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
Therefore, the indoor units in the multi-split system which need to be sterilized can be sterilized, and an ideal sterilization effect is achieved; the air conditioner can be maintained in a certain high-temperature environment through high-temperature sterilization, so that microorganisms such as bacteria, fungi, mold and the like on the surface of the heat exchanger are inactivated, and the aim of high-temperature sterilization is fulfilled; like this through pasteurization, the sterilization efficiency is high and do not have the risk of leaking the harm human body, has satisfied the requirement of degerming efficiency and security simultaneously. In addition, the supercooling degree is adjusted, so that the heat exchanger of the indoor unit is uniformly heated, and an ideal sterilization effect is achieved.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (15)
1. A degerming control method for an air conditioner is characterized by comprising the following steps:
after the air conditioner enters a sterilization mode, recording sterilization time;
adjusting the exhaust temperature of the compressor to make the exhaust temperature fall into a degerming temperature range;
adjusting the supercooling degree of the indoor unit to enable the supercooling degree to fall into a degerming supercooling degree range;
and exiting the degerming mode after the degerming time is longer than a preset time.
2. The sterilization control method of an air conditioner according to claim 1, wherein the recording of the sterilization time after the air conditioner enters the sterilization control mode further comprises: and controlling the indoor unit to operate at a low wind speed, and adjusting the air guide door to an upward air outlet position.
3. The sterilization control method of an air conditioner according to claim 1, further comprising, after exiting the sterilization mode after the sterilization time is longer than a preset time period:
and after the first preset time, the inner fan is closed.
4. The air conditioner sterilization control method as recited in any one of claims 1 to 3, wherein the exhaust temperature is determined to fall within the sterilization temperature range when the following conditions are satisfied:
the exhaust temperature is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold.
5. The sterilization control method of an air conditioner according to claim 4, wherein said adjusting the discharge temperature of the compressor to fall within the sterilization temperature range comprises:
periodically detecting the discharge temperature of the compressor;
comparing the magnitude relation of the exhaust temperature with the first temperature threshold and the second temperature threshold;
if the exhaust temperature is smaller than the first temperature threshold value, the current rotating speed of the compressor is increased;
if the exhaust temperature is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, maintaining the rotating speed of the compressor;
and if the exhaust temperature is greater than the second temperature threshold, exiting the sterilization mode.
6. The sterilization control method of an air conditioner according to claim 1, wherein the supercooling degree is determined to fall within the sterilization supercooling degree range when the following conditions are satisfied:
and the supercooling degree is less than or equal to a preset supercooling value.
7. The degerming control method of an air conditioner as claimed in claim 6, wherein the adjusting the supercooling degree of the indoor unit to fall within the degerming supercooling degree range comprises:
periodically detecting the inlet pipe temperature and the outlet pipe temperature of the heat exchanger of the indoor unit;
calculating the supercooling degree of the indoor unit according to the inlet pipe temperature and the outlet pipe temperature;
if the supercooling degree is greater than the preset supercooling value, controlling an electronic expansion valve of the indoor unit to increase the opening degree, wherein the electronic expansion valve is arranged at the position of an outlet pipe of a heat exchanger of the indoor unit;
and if the supercooling degree is less than or equal to the preset supercooling value, maintaining the opening degree of the electronic expansion valve.
8. A degerming control device of an air conditioner is characterized by comprising:
the recording unit (1) is used for recording the sterilization time after the air conditioner enters the sterilization mode;
an adjusting unit (2) for adjusting the exhaust temperature of the compressor to fall within the sterilization temperature range;
the system is also used for adjusting the supercooling degree of the indoor unit to enable the supercooling degree to fall into the degerming supercooling degree range;
a control unit (3) for exiting the sterilization mode after the sterilization time is greater than a preset time period.
9. A multi-online degerming control method is characterized by comprising the following steps:
after a sterilization instruction is received, the operation modes of all indoor units are obtained, wherein the indoor units comprise sterilization indoor units and non-sterilization indoor units;
according to the operation mode of the indoor unit, the operation of the indoor unit is adjusted, and then the sterilization indoor unit is controlled to enter a sterilization mode;
the air conditioner sterilization control method according to any one of claims 1 to 7, performing sterilization control on the sterilization indoor unit entering the sterilization mode.
10. The multi-online degerming control method of claim 9, wherein the controlling the degerming indoor unit to enter the degerming mode after adjusting the operation of the indoor unit according to the operation mode of the indoor unit comprises:
judging whether the degerming indoor unit has special authority or not;
if the degerming indoor units do not have the special authority, judging whether the non-degerming indoor units with the operation modes of a refrigeration mode or a dehumidification mode exist;
and if the non-degerming indoor unit with the operation mode being the refrigeration mode or the dehumidification mode exists, quitting the degerming control.
11. The multi-online degerming control method according to claim 10, wherein if none of the degerming indoor units has the special authority, determining whether there is a non-degerming indoor unit with a cooling mode or a dehumidifying mode, and then:
if the non-degerming indoor unit with the operation mode of the refrigeration mode or the dehumidification mode does not exist, after the degerming indoor unit with the operation mode of the refrigeration mode or the dehumidification mode is subjected to shutdown control, all the degerming indoor units are controlled to enter the degerming mode.
12. The multi-online degerming control method according to claim 10 or 11, wherein after determining whether the degerming indoor unit has a special authority, the method further comprises:
if at least one of the degerming indoor units has the special authority, executing shutdown control on the non-degerming indoor unit with the operation mode being a refrigeration mode or a dehumidification mode;
and after the degerming indoor units with the operation modes of refrigeration or dehumidification are stopped, all the degerming indoor units are controlled to enter the degerming mode.
13. A multi-split sterilizing control device is characterized by comprising:
the acquisition unit (4) is used for acquiring the operation modes of all indoor units after receiving a sterilization instruction, wherein the indoor units comprise sterilization indoor units and non-sterilization indoor units;
the regulation and control unit (5) is used for regulating the operation of the indoor unit according to the operation mode of the indoor unit and then controlling the sterilization indoor unit to enter a sterilization mode;
a sterilization unit (6) for performing sterilization control on the sterilization indoor unit entering the sterilization mode according to the air conditioner sterilization control method of any one of claims 1 to 7.
14. A multi-split system comprising a computer-readable storage medium storing a computer program and a processor, the computer program being read by the processor and executing, the computer program implementing the air conditioner sterilization control method according to any one of claims 1 to 7 or implementing the multi-split sterilization control method according to any one of claims 9 to 12.
15. A computer-readable storage medium, characterized in that it stores a computer program which, when read and executed by a processor, implements the air conditioner sterilization control method according to any one of claims 1 to 7, or implements the multi-split sterilization control method according to any one of claims 9 to 12.
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