CN113339934B - Sterilization control method and air conditioner - Google Patents
Sterilization control method and air conditioner Download PDFInfo
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- CN113339934B CN113339934B CN202110655711.2A CN202110655711A CN113339934B CN 113339934 B CN113339934 B CN 113339934B CN 202110655711 A CN202110655711 A CN 202110655711A CN 113339934 B CN113339934 B CN 113339934B
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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
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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
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Abstract
The invention discloses a sterilization control method and an air conditioner, comprising the following steps: the air conditioner operates in a high-temperature sterilization mode; entering a drying stage, wherein the drying stage starts a heating mode and closes an indoor unit fan and an air guide panel; and entering the next sterilization stage when the operation state of the air conditioner does not accord with the preset condition corresponding to the drying stage. Based on the existing air conditioning system, the air in the air conditioner indoor unit is continuously heated through reasonable control of system components and air guide panels, microorganisms such as bacteria and the like bred in water are killed at high temperature by utilizing flowing high-temperature air, the effects of removing bacteria and preventing blockage are achieved, and the reliable operation of the air conditioning system in a severe environment is ensured.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a sterilization control method and an air conditioner.
Background
The modern air conditioner has various use occasions, in places with severe environments such as restaurants and the like, condensed water generated by long-term refrigeration of the air conditioner cannot be completely discharged, a humid environment in which fungi exist is easily formed, and the mass propagation of the fungi and the secretion generated by the fungi enable a unit drainage system to be dirty and blocked, so that the air conditioner cannot work normally. Most bacteria and fungi have structural characteristics such that the bacteria and fungi are inactivated due to structural damage under the condition of continuous high temperature. If the air conditioner is used, bacteria and fungi at the water collecting position are subjected to high-temperature treatment by a reasonable control means, so that the sterilizing effect of the air conditioner can be realized, the filth blockage fault caused by the propagation of most of fungi can be avoided, and the reliable operation of the air conditioner is ensured. However, in the prior art, the air conditioner has low heat utilization efficiency during sterilization treatment, which results in poor sterilization effect.
Disclosure of Invention
The invention provides a sterilization control method and an air conditioner, aiming at solving the technical problem that the sterilization efficiency of a water collecting device of an air conditioning unit in the prior art is low.
The technical scheme adopted by the invention is as follows:
the invention provides a sterilization control method, which comprises the following steps:
the air conditioner operates in a high-temperature sterilization mode;
entering a drying stage, wherein the drying stage starts a heating mode and closes an indoor unit fan and an air guide panel;
and entering the next sterilization stage when the operation state of the air conditioner does not accord with the preset condition corresponding to the drying stage.
In a first embodiment, the next sterilization phase comprises a rotation phase comprising the steps of: the indoor unit fan rotates at a preset drying rotating speed and runs for a preset time. After the rotation stage runs for a preset time, entering a blowing-out stage, wherein the blowing-out stage comprises the following steps: and (4) opening the air guide panel, and returning to the drying stage when the operation state of the air conditioner does not accord with the preset condition corresponding to the blowing-out stage.
In a second embodiment, the next sterilization phase comprises entering a blow-to-spin phase; the blowing stage comprises the following steps: the air guide panel is opened, the fan of the indoor unit rotates at a preset drying rotating speed, and when the operation state of the air conditioner does not accord with the preset condition corresponding to the blowing and rotating stage, the air conditioner returns to the drying stage.
The preset conditions corresponding to the drying stage are not met: when the temperature or the pressure value of the inner tube is larger than the corresponding preset reminding value and exceeds the first preset reminding time, or the temperature of the inner tube is larger than the preset target value and is smaller than or equal to the preset reminding value and continues for the second preset reminding time.
The preset conditions corresponding to the non-conformity of the blowing-out stage are as follows: and when the temperature or pressure value of the inner tube is smaller than the corresponding preset reminding value and exceeds the third preset reminding time.
Further, the blowing stage further comprises the steps of: and when the temperature or pressure value of the inner pipe is larger than the corresponding preset reminding value and exceeds the first preset reminding time, adjusting the rotating speed of the fan and/or the frequency of the compressor to reduce the temperature or pressure value of the inner pipe.
Preferably, the conditions for the air conditioner to operate the pasteurization mode include: and when detecting that the accumulated working time of the air conditioner in the refrigeration mode or the dehumidification mode reaches the first preset sterilization time, operating the high-temperature sterilization mode, and resetting the accumulated working time when the heating mode or the air supply mode reaches the first preset zero clearing time in the high-temperature sterilization mode or the accumulated working time.
Preferably, the conditions for the air conditioner to operate the pasteurization mode include: and when the accumulated working time of the water pump of the air conditioner reaches the second preset sterilization time, operating the high-temperature sterilization mode, and resetting the accumulated working time when the water pump stops working in the operation of the air conditioner and reaches the second preset zero clearing time after the high-temperature sterilization mode is operated or the accumulated working time is up.
The invention also provides an air conditioner, and the air conditioner unit is sterilized by using the sterilization control method.
Compared with the prior art, the air conditioner system is based on the existing air conditioner system, air inside an air conditioner indoor unit is continuously heated through reasonable control of system components and air guide panels, microbes such as bacteria bred in water are killed at high temperature by utilizing flowing high-temperature air, the effects of removing bacteria and preventing blockage are achieved, and reliable operation of the air conditioner system in severe environment is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a flow chart of a first embodiment of the present invention;
FIG. 2 is a flow chart of a second embodiment of the present invention;
FIG. 3 is a flow chart of a third embodiment of the present invention;
FIG. 4 is a flow chart of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. 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 principles and construction of the present invention will be described in detail below with reference to the drawings and examples.
The high-temperature sterilization mode of the air conditioner provided by the invention is divided into three parts: detecting a mode starting condition, controlling a high-temperature sterilization mode and detecting a mode ending condition.
The present invention provides three embodiments of the control of the high temperature sterilization mode.
Specifically, the invention provides a sterilization control method, which comprises the following steps:
starting an air conditioning unit, detecting conditions, and operating an air conditioner in a high-temperature sterilization mode;
entering a drying stage, wherein the drying stage comprises the following steps: starting a heating mode, and closing an indoor unit fan and an air guide panel; at the moment, the heat exchanger of the indoor unit continuously heats air, and in the process, moisture in the water collecting device of the indoor unit continuously absorbs heat to be vaporized, so that high-temperature drying and sterilization are carried out; and entering the next sterilization stage when the operation state of the air conditioner does not accord with the preset condition corresponding to the drying stage.
The preset condition that the running state of the air conditioner does not conform to the drying stage is specifically as follows: when the temperature (temperature value of a tube temperature sensing bulb of an evaporator of the indoor unit) or the pressure value (pressure value detected by a pressure sensor of the outdoor unit) of the inner tube is larger than the corresponding preset reminding value and exceeds the first preset reminding time, the next stage is entered when the condition is reached, and the unit can be prevented from stopping due to protection; or when the temperature of the inner tube is greater than the preset target value and less than or equal to the preset reminding value for the second preset reminding time.
The first embodiment is a cyclic three-stage process, the next sterilization stage comprising: a rotation phase, the rotation phase comprising in particular the steps of: and the heating mode is maintained unchanged, the air guide panel is still in a closed state, the indoor unit fan rotates at a preset drying rotating speed, and the preset drying rotating speed can be the fan rotating speed of the lowest gear and runs for a preset time. After the rotation stage runs for a preset time, the blowing stage is started, and the blowing stage specifically comprises the following steps: the air guide panel is opened, the indoor unit fan still rotates at a preset drying rotating speed, and when the operation state of the air conditioner does not accord with the preset condition corresponding to the blowing-out stage, the air conditioner returns to the drying stage.
In the blowing-out stage, if any one of the temperature value of the evaporator tube temperature sensing bulb or the pressure value of the pressure sensor is greater than the reminding value and exceeds the first preset reminding time, the temperature value of the evaporator tube temperature sensing bulb can be lower than the reminding value in an intelligent adjusting mode under the condition that the condition is allowed, wherein the temperature value of the evaporator tube temperature sensing bulb is required to be higher than the target value all the time. (the fixed frequency machine can be adjusted by adjusting the rotating speed of the inner fan and the outer fan, and the frequency converter can be adjusted by adjusting the rotating speed of the inner fan, the frequency of the compressor and the rotating speed of the outer fan).
In this embodiment, the specific preset condition that the air conditioner operating state does not meet the blowout stage is: when the temperature of the inner pipe (the temperature value of the pipe temperature sensing bulb of the evaporator of the indoor unit) or the pressure value (the pressure value detected by the pressure sensor of the outdoor unit) is smaller than the corresponding preset reminding value and exceeds the third preset reminding time. When the temperature or the pressure value of the inner pipe is smaller than the reminding value for more than a certain time, the temperature in the indoor unit is insufficient, and the first stage, namely the drying stage, needs to be returned to for temperature rise.
The second embodiment is a cyclic two-stage process, the next sterilization stage comprising: and a rotary blowing stage, wherein the rotary blowing stage specifically comprises the following steps: and when the operation state of the air conditioner does not accord with the preset condition corresponding to the blowing and rotating stage, the air conditioner returns to the drying stage. The embodiment is a cyclic two-stage method, and is suitable for rapid sterilization.
The preset conditions corresponding to the condition that the running state of the air conditioner does not conform to the blowing stage are specifically as follows: when the rotary blowing stage continuously operates for more than a second preset time, and when the temperature of the inner pipe (the temperature value of the pipe temperature sensing bulb of the evaporator of the indoor unit) or the pressure value (the pressure value detected by the pressure sensor of the outdoor unit) is smaller than the corresponding preset reminding value, the temperature exceeds a third preset reminding time. At this time, the temperature in the indoor unit is not enough, and the temperature needs to be raised to the first stage, i.e. the drying stage.
In the rotary blowing stage, if any one of the temperature value of the evaporator tube temperature sensing bulb or the pressure value of the pressure sensor is greater than the reminding value and exceeds the first preset reminding time, the temperature value of the evaporator tube temperature sensing bulb can be lower than the reminding value in an intelligent adjusting mode under the condition that the condition is allowed, wherein the temperature value of the evaporator tube temperature sensing bulb is required to be higher than the target value all the time. (the fixed frequency machine can be adjusted by adjusting the rotating speed of the inner fan and the outer fan, and the frequency converter can be adjusted by adjusting the rotating speed of the inner fan, the frequency of the compressor and the rotating speed of the outer fan).
The third embodiment is a circulating air method, after the unit detects that the sterilization mode is opened, the system changes to the heating mode, the air guide panel is turned to an angle at which a return air short circuit can occur (namely, the air guide panel swings to the lowest part or the highest part, and the mode can be also applied to a rotary blowing stage or a blowing stage), and the indoor fan is turned on at a low speed. The unit heats the operation, and indoor set heat exchanger is constantly heated air, and the temperature of pipe temperature sensing package rises to above the target value, and the moisture in the indoor set water-collecting device constantly absorbs the heat vaporization in-process. The indoor fan drives the heated air to be blown out along the air deflector. Because the angle of the air deflector is the angle of the easiest return air short circuit, the blown heated air is pumped back to the indoor unit by the fan to exchange heat and be blown out. The air temperature is continuously raised in the circulation process, and the high-temperature sterilization effect is realized. If any one of the temperature value of the evaporator tube temperature sensing bulb or the pressure value of the pressure sensor is greater than the reminding value and exceeds B seconds in the circulation process, the temperature value of the evaporator tube temperature sensing bulb can be lower than the reminding value in an intelligent adjusting mode under the condition that the condition is allowed, wherein the temperature value of the evaporator tube temperature sensing bulb is required to be higher than the target value all the time. (the fixed frequency machine can be adjusted by adjusting the rotating speed of the inner fan and the outer fan, and the frequency converter can be adjusted by adjusting the rotating speed of the inner fan, the frequency of the compressor and the rotating speed of the outer fan). And when the condition that the sterilization mode is ended is detected, the circulation is exited after the operation is continued for X minutes, and the sterilization mode is ended.
The following are specific descriptions of three examples:
1. the three-stage process is circulated, and the specific flow is shown in FIG. 1.
The circulation three-stage method is divided into three stages for circulation, namely a drying stage, a rotating stage and a blowing stage.
(1) Drying stage
After the air conditioning unit detects that the sterilization mode is opened, the heating mode is switched, meanwhile, the fan of the indoor unit is controlled to be closed, and the air guide panel is controlled to be closed. The unit heats and operates, the heat exchanger of the indoor unit continuously heats air, the temperature of the temperature sensing bulb of the evaporator is increased to be above a target value, and moisture in the water collecting device of the indoor unit continuously absorbs heat to be vaporized in the process.
After the heating mode is started, the system continuously detects the temperature value of the evaporator tube temperature sensing bulb and the pressure value of the outer machine pressure sensor (because the system is operated and heated in a severe environment, the detection function needs to be added to ensure the reliable operation of the system). In order to avoid the shutdown of the unit caused by protection, a reminding value is set before a protection value, and when any one of the detected temperature sensing bulb temperature value of the evaporator tube or the pressure value of the pressure sensor is greater than the reminding value and exceeds B seconds, the second stage is immediately started.
Under the condition that the conditions allow, in the drying stage, the fixed-frequency compressor can maintain the temperature of the tube temperature sensing bulb to be higher than the target value but not to exceed the reminding value in a mode of intelligently adjusting the rotating speed of the outer fan, and the variable-frequency compressor can maintain the temperature of the tube temperature sensing bulb to be higher than the target value but not to exceed the reminding value in a mode of intelligently adjusting the frequency of the compressor and the rotating speed of the outer fan, and the pressure value of the pressure sensor is not to exceed the state of the reminding value. When the temperature of the tube temperature sensing bulb is maintained to be higher than the target value but not more than the reminding value for more than C seconds, the second stage is immediately entered.
(2) Rotating phase
And after the second stage is detected, the heating mode is kept unchanged, and the air guide panel is still in a closed state. And (4) starting the indoor fan to rotate at a low speed for D seconds, driving the air to flow in the indoor unit, continuously carrying out sufficient heat exchange on the residual moisture, and then entering a third stage.
(3) Blowing stage
And after the third stage is detected, the air guide panel is opened, the inner fan keeps running at a low speed, and heated air in the indoor unit is blown out.
In the third stage, if any one of the temperature value of the evaporator tube temperature sensing bulb or the pressure value of the pressure sensor is greater than the reminding value and exceeds B seconds, the temperature value of the evaporator tube temperature sensing bulb can be lower than the reminding value in an intelligent adjusting mode under the condition that the condition is allowed, wherein the temperature value of the evaporator tube temperature sensing bulb is required to be higher than the target value all the time. (the fixed frequency machine can be adjusted by adjusting the rotating speed of the inner fan and the outer fan, and the frequency converter can be adjusted by adjusting the rotating speed of the inner fan, the frequency of the compressor and the rotating speed of the outer fan)
And when the third stage lasts for more than E seconds and the detected temperature value of the evaporator tube temperature sensing bulb and the pressure value of the pressure sensor are both smaller than the reminding value and exceed F seconds, exiting the third stage, returning to the first stage again, and closing the inner fan and the air guide panel for drying.
And when the condition that the sterilization mode is ended is detected, the circulation is exited after the operation is continued for X minutes, and the sterilization mode is ended.
2. The two-stage method is circulated, and the specific flow is shown in FIG. 2.
The two-stage circulation method is divided into two stages for circulation, namely a drying stage and a rotary blowing stage.
(1) Drying stage
After the unit detects that the sterilization mode is opened, the system changes the heating mode, and simultaneously controls the fan of the indoor unit to be closed and the air guide panel to be closed. The unit heats and operates, the heat exchanger of the indoor unit continuously heats air, the temperature of the temperature sensing bulb of the evaporator tube rises above a target value, and in the process, moisture in the water collecting device of the indoor unit continuously absorbs heat to vaporize.
After the heating mode is started, the system continuously detects the temperature value of the evaporator tube temperature sensing bulb and the pressure value of the outer machine pressure sensor (because the system is operated and heated in a severe environment, the detection function needs to be added to ensure the reliable operation of the system). In order to avoid the shutdown of the unit caused by protection, a reminding value is set before a protection value, and when the detected temperature value of the evaporator tube temperature sensing bulb or the pressure value of the pressure sensor is greater than the reminding value and exceeds B seconds, the second stage is immediately started.
Under the condition that the conditions allow, in the drying stage, the fixed-frequency compressor can maintain the temperature of the tube temperature sensing bulb to be higher than the target value but not to exceed the reminding value in a mode of intelligently adjusting the rotating speed of the outer fan, and the variable-frequency compressor can maintain the temperature of the tube temperature sensing bulb to be higher than the target value but not to exceed the reminding value in a mode of intelligently adjusting the frequency of the compressor and the rotating speed of the outer fan, and the pressure value of the pressure sensor is not to exceed the state of the reminding value. When the temperature of the tube temperature sensing bulb is maintained to be higher than the target value but not more than the reminding value for more than C seconds, the second stage is immediately entered.
(2) Stage of transfer blowing
And after the second stage is detected, the heating mode is kept unchanged, the air guide panel is opened, and the indoor fan is started to rotate at a low speed to drive the heated air in the indoor unit to flow and blow out.
And in the second stage, if any one of the temperature value of the evaporator tube temperature sensing bulb or the pressure value of the pressure sensor is greater than the reminding value and exceeds B seconds, the temperature value of the evaporator tube temperature sensing bulb can be lower than the reminding value in an intelligent adjusting mode under the condition that the condition is allowed, wherein the temperature value of the evaporator tube temperature sensing bulb is required to be higher than the target value all the time. (the fixed frequency machine can be adjusted by adjusting the rotating speed of the inner fan and the outer fan, and the frequency converter can be adjusted by adjusting the rotating speed of the inner fan, the frequency of the compressor and the rotating speed of the outer fan)
When the second stage continuously exceeds G seconds, and the detected temperature value of the evaporator tube temperature sensing bulb and the pressure value of the pressure sensor are both smaller than the reminding value and exceed F seconds, the second stage is withdrawn, the first stage is returned again, and the inner fan and the air guide panel are closed to dry.
And when the condition that the sterilization mode is ended is detected, the circulation is exited after the operation is continued for X minutes, and the sterilization mode is ended.
3. The specific flow of the circulating air method is shown in fig. 3.
After the unit detects that the sterilization mode is opened, the system changes the heating mode, the air guide panel is turned to the angle at which the return air short circuit is most likely to occur, and the indoor fan is opened at a low speed.
The unit heats the operation, and indoor set heat exchanger is constantly heated air, and the temperature of pipe temperature sensing package rises to above the target value, and the moisture in the indoor set water-collecting device constantly absorbs the heat vaporization in-process.
The indoor fan drives the heated air to be blown out along the air deflector. Because the angle of the air deflector is the angle of the easiest return air short circuit, the blown heated air is pumped back to the indoor unit by the fan to exchange heat and be blown out.
The air temperature is continuously raised in the circulation process, and the high-temperature sterilization effect is realized.
If any one of the temperature value of the evaporator tube temperature sensing bulb or the pressure value of the pressure sensor is greater than the reminding value and exceeds B seconds in the circulation process, the temperature value of the evaporator tube temperature sensing bulb can be lower than the reminding value in an intelligent adjusting mode under the condition that the condition is allowed, wherein the temperature value of the evaporator tube temperature sensing bulb is required to be higher than the target value all the time. (the fixed frequency machine can be adjusted by adjusting the rotating speed of the inner fan and the outer fan, and the frequency converter can be adjusted by adjusting the rotating speed of the inner fan, the frequency of the compressor and the rotating speed of the outer fan)
And when the condition that the sterilization mode is ended is detected, the circulation is exited after the operation is continued for X minutes, and the sterilization mode is ended.
The time period of A, B, C, D, E, F, G, H is not particularly limited, since it can be set as needed.
As shown in fig. 4, the conditions for detecting the mode opening condition are as follows (the following opening conditions can be used singly or combined freely, and the serial number is the priority, the working hours are calculated only in the power-on state, the current working hours are memorized after the power-off and power-down, and the calculation is continued when the power-on is performed next time):
(1) and when the continuous work or the accumulated work of the refrigerating or dehumidifying operation of the unit is detected to be full of the first sterilization preset time, starting, and resetting the working hours after the sterilization is finished. And when the heating or air supply mode reaches the first zero clearing preset time (specifically, 10 to 30 minutes, preferably 20 minutes) in the calculation of the cumulative working hours, clearing the cumulative working hours, and when detecting that the refrigerating or dehumidifying operation of the unit restarts to calculate the working hours.
(2) And when the water pump is detected to continuously work or work accumulatively for a second preset sterilization time (which can be the same as or different from the first preset sterilization time), starting the water pump, and resetting the working hours after sterilization. And in the calculation of the accumulative work hours, when the water pump is detected to stop working and reach a second zero-clearing preset time (which can be the same as or different from the second zero-clearing preset time), clearing the accumulative work hours, and when the water pump is detected to restart calculating the work hours.
(3) And when the time that the temperature of the tube temperature sensing bulb of the evaporator of the unit is detected to be less than or equal to T2 ℃ is continuously worked or the first sterilization preset time is accumulated, starting the machine, and resetting the working hours after the sterilization is finished. And resetting the accumulated working hours when the temperature of the temperature sensing bulb of the evaporator tube is detected to be not less than T1 ℃ and reaches the first reset preset time in the calculation of the accumulated working hours, and restarting to calculate the working hours when the temperature of the temperature sensing bulb of the evaporator tube is detected to be not more than T2 ℃.
(4) And when the time that the temperature of the tube temperature bulb of the condenser of the unit is detected to be more than or equal to T3 ℃ is continuously worked or the first sterilization preset time is accumulated, starting the machine, and resetting the working hours after the sterilization is finished. And resetting the accumulated working hours when the temperature of the temperature sensing bulb of the condenser tube is detected to be less than or equal to T4 ℃ and reaches the first reset preset time in the accumulated working hours calculation, and restarting to calculate the working hours when the temperature sensing bulb of the condenser tube is detected to be more than or equal to T3 ℃.
The mode judges the refrigeration and dehumidification modes through the temperature of the inner pipe. When the sterilization mode starting condition is judged to be reached, the buzzer of the indoor unit or the wired controller sounds to remind a user of entering the sterilization mode.
The mode ending condition detection can be used singly or combined freely, when the following conditions are met, the sterilization mode ending condition is judged to be met, and the system returns to the operation mode before the sterilization mode is started:
(1) when the high-temperature sterilization mode of the air conditioner is continuously operated for Y minutes (the numerical value manufacturer can set according to the actual situation);
(2) arranging a temperature and humidity sensor at a position, close to an air outlet, of the air conditioner, and when detecting that the relative humidity of the air outlet temperature of the current indoor unit is lower than a preset humidity value in the case of lasting H minutes (the numerical manufacturer can set according to actual conditions);
(3) arranging electrodes at the position of the air conditioner close to the water outlet, and when the resistance value is detected to be higher than the preset resistance value;
(4) a temperature bulb is arranged at the position of a water pan of the air conditioner, and when the temperature of the current bulb is detected to be higher than a preset value in I minutes (the numerical manufacturer can set according to actual conditions).
The invention also provides an air conditioner, and the method is adopted to sterilize the water collecting device of the air conditioning unit. The air conditioning unit should be capable of performing cooling/heating functions. The indoor unit should have a water pan, a water pump or the like to ensure that the unit can achieve natural drainage or water pump drainage. The detection device of the air conditioning unit at least comprises a pressure detection device, a temperature sensor, a humidity sensor, a temperature sensing bulb, an electrode, other sensors and detection devices.
The air conditioner is specifically a courtyard machine, a blast pipe machine or a multi-split air conditioner.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A sterilization control method is characterized by comprising the following steps:
the air conditioner operates in a high-temperature sterilization mode;
entering a drying stage, wherein the drying stage starts a heating mode and closes an indoor unit fan and an air guide panel;
when the operation state of the air conditioner does not accord with the preset condition corresponding to the drying stage;
entering a rotation phase, said rotation phase comprising the steps of: the method comprises the following steps that an indoor unit fan rotates at a preset drying rotating speed and runs for a preset time, and after the rotating stage runs for the preset time, the blowing stage is started, and the blowing stage comprises the following steps: the air guide panel is opened, and when the running state of the air conditioner does not meet the preset condition corresponding to the blowing-out stage, the air conditioner returns to the drying stage;
or entering a blowing and rotating stage, wherein the blowing and rotating stage comprises the following steps: the air guide panel is opened, the fan of the indoor unit rotates at a preset drying rotating speed, and when the operation state of the air conditioner does not accord with the preset condition corresponding to the blowing and rotating stage, the air conditioner returns to the drying stage.
2. The sterilization control method according to claim 1, wherein the preset conditions corresponding to the non-compliance with the drying stage are: when the temperature or the pressure value of the inner tube is larger than the corresponding preset reminding value and exceeds the first preset reminding time, or the temperature of the inner tube is larger than the preset target value and is smaller than or equal to the preset reminding value and continues for the second preset reminding time.
3. The sterilization control method according to claim 1, wherein the preset conditions corresponding to the non-conformity in the blowing stage are: and when the temperature or pressure value of the inner tube is smaller than the corresponding preset reminding value and exceeds the third preset reminding time.
4. The sterilization control method according to claim 1, wherein the blowing stage further comprises the steps of: and when the temperature or pressure value of the inner pipe is larger than the corresponding preset reminding value and exceeds the first preset reminding time, adjusting the rotating speed of the fan and/or the frequency of the compressor to reduce the temperature or pressure value of the inner pipe.
5. The sterilization control method of claim 1, wherein the condition for the air conditioner to operate the pasteurization mode includes: and when detecting that the accumulated working time of the air conditioner in the refrigeration mode or the dehumidification mode reaches the first preset sterilization time, operating the high-temperature sterilization mode, and resetting the accumulated working time when the heating mode or the air supply mode reaches the first preset zero clearing time in the high-temperature sterilization mode or the accumulated working time.
6. The sterilization control method of claim 1, wherein the condition for the air conditioner to operate the pasteurization mode includes: and when the accumulated working time of the water pump of the air conditioner reaches the second preset sterilization time, operating the high-temperature sterilization mode, and resetting the accumulated working time when the water pump stops working in the operation of the air conditioner and reaches the second preset zero clearing time after the high-temperature sterilization mode is operated or the accumulated working time is up.
7. An air conditioner, characterized in that the air conditioning unit is sterilized by using the sterilization control method according to any one of claims 1 to 6.
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