CN111380179A

CN111380179A - Air conditioner high-temperature disinfection frequency-limiting protection method, air conditioner, storage medium and device

Info

Publication number: CN111380179A
Application number: CN202010234160.8A
Authority: CN
Inventors: 徐振坤; 张武军; 李玉; 席战利; 黄剑云; 唐亚林; 黄招彬; 高卓贤
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-07-07
Anticipated expiration: 2040-03-27
Also published as: CN111380179B; CN114061105B; CN114061105A

Abstract

The invention discloses a high-temperature disinfection frequency-limiting protection method for an air conditioner, the air conditioner, a storage medium and a device, wherein the method comprises the following steps: through when receiving the pasteurization instruction, adjust current operating mode to the pasteurization mode, acquire the air conditioner is in operating parameter under the pasteurization mode, according to operating parameter confirms the operation protection strategy, and carries out the operation protection strategy is in when the execution of operation protection strategy finishes, judge whether need remove right the operation protection of air conditioner, if, then remove the operation protection, and acquire in the operation protection strategy execution process the operating frequency change value of air conditioner when the operating frequency change value satisfies and predetermines the frequency change condition, reads preset frequency adjustment strategy to can reduce the frequency of protection frequency reduction, reach the heat exchanger temperature fluctuation that reduces frequent protection frequency reduction and bring, make the system reach the effect of steady state more easily.

Description

Air conditioner high-temperature disinfection frequency-limiting protection method, air conditioner, storage medium and device

Technical Field

The invention relates to the technical field of air conditioners, in particular to a high-temperature disinfection frequency-limiting protection method for an air conditioner, the air conditioner, a storage medium and a device.

Background

At present, many bacteria and viruses are not high-temperature resistant, and data show that some bacteria harmful to human bodies can be killed and most viruses can be inactivated at the temperature of more than 56 ℃ for a certain time. The indoor heat exchanger is in a high-temperature state when the air conditioner heats, but is limited by the requirements of the system and components of the air conditioner on reliability, heating performance and noise, and the problem that the temperature fluctuation of the heat exchanger caused by frequent protection and frequency reduction is generally caused when the air conditioner heats in the market at present, so that the system is not easy to reach a stable state is solved. Therefore, when the air conditioner is disinfected at high temperature, how to protect the air conditioner in a frequency limiting manner is an urgent technical problem to be solved.

Disclosure of Invention

The invention mainly aims to provide a high-temperature disinfection frequency-limiting protection method for an air conditioner, the air conditioner, a storage medium and a device, and aims to solve the problem of how to perform frequency-limiting protection on the air conditioner when the air conditioner is subjected to high-temperature disinfection.

In order to achieve the purpose, the invention provides a high-temperature disinfection frequency-limiting protection method for an air conditioner, which comprises the following steps:

when a high-temperature sterilization instruction is received, the current working mode is adjusted to be the high-temperature sterilization mode;

acquiring the operating parameters of the air conditioner in the high-temperature disinfection mode, determining an operation protection strategy according to the operating parameters, and executing the operation protection strategy;

when the execution of the operation protection strategy is finished, judging whether the operation protection of the air conditioner needs to be released or not;

if so, removing the operation protection and acquiring an operation frequency change value of the air conditioner in the execution process of the operation protection strategy;

reading a preset frequency adjustment strategy when the operating frequency change value meets a preset frequency change condition;

and adjusting the current operating frequency of the air conditioner according to the frequency adjustment strategy so as to realize high-temperature disinfection frequency-limiting protection of the air conditioner.

Preferably, before the obtaining of the operating parameters of the air conditioner in the high-temperature sterilization mode, determining an operation protection strategy according to the operating parameters, and executing the operation protection strategy, the method further includes:

acquiring the current temperature of a heat exchanger and the first operation time of the high-temperature disinfection mode;

judging whether to carry out operation protection according to the current temperature and the first operation time length;

if so, executing the steps of obtaining the operating parameters of the air conditioner in the high-temperature disinfection mode, determining an operation protection strategy according to the operating parameters, and executing the operation protection strategy.

Preferably, the adjusting the current operating frequency of the air conditioner according to the frequency adjustment strategy to achieve high-temperature sterilization frequency-limiting protection of the air conditioner includes:

reading a first maximum limit operating frequency in the frequency adjustment strategy;

taking the first maximum limited operation frequency as a first upper frequency limit, and adjusting the current operation frequency of the air conditioner according to the first upper frequency limit to realize high-temperature disinfection frequency-limiting protection of the air conditioner;

or;

reading the frequency recovery adjustment duration and the first frequency increasing speed in the frequency adjustment strategy;

and adjusting the current operating frequency of the air conditioner according to the frequency recovery adjusting time length and the first frequency increasing speed so as to realize high-temperature disinfection frequency limiting protection of the air conditioner.

Preferably, after reading the first maximum limited operating frequency in the frequency adjustment strategy, the method further includes:

acquiring the rotating speed of an indoor unit of the air conditioner, and judging whether the rotating speed of the indoor unit is equal to a preset minimum rotating speed or not;

if not, reading a preset second frequency adjustment strategy;

correspondingly, the step of taking the first maximum limited operation frequency as a first upper frequency limit and adjusting the current operation frequency of the air conditioner according to the first upper frequency limit to realize high-temperature disinfection frequency-limiting protection of the air conditioner specifically comprises:

and taking the first maximum limited operation frequency as a first upper frequency limit, and adjusting the current operation frequency of the air conditioner according to the second frequency adjustment strategy and the first upper frequency limit to realize high-temperature disinfection frequency-limiting protection of the air conditioner.

Preferably, the taking the first maximum limited operation frequency as a first upper frequency limit and adjusting the current operation frequency of the air conditioner according to the second frequency adjustment strategy and the first upper frequency limit to realize the air conditioner high-temperature sterilization frequency-limit protection comprises:

taking the first maximum limit operation frequency as a first upper frequency limit, and reading a second frequency increasing speed in the second frequency adjustment strategy;

and adjusting the current operating frequency of the air conditioner according to the second frequency-increasing speed and the first frequency upper limit so as to realize high-temperature disinfection frequency-limiting protection of the air conditioner.

Preferably, after the current operating frequency of the air conditioner is adjusted according to the frequency adjustment strategy to implement high-temperature sterilization frequency-limiting protection of the air conditioner, the method further includes:

acquiring the real-time temperature of a heat exchanger, and judging whether the real-time temperature is in a preset temperature range;

when the real-time temperature is within a preset temperature range, controlling the air conditioner to keep running in the current state;

and acquiring a second operation time length for the air conditioner to keep operating in the current state, and judging whether to control the air conditioner to finish the high-temperature disinfection mode or not according to the second operation time length.

Preferably, after acquiring the real-time temperature of the heat exchanger and determining whether the real-time temperature is within a preset temperature range, the method further includes:

when the real-time temperature is not within the preset temperature range, judging whether the real-time temperature is smaller than the minimum temperature corresponding to the preset temperature range;

if so, controlling the air conditioner to execute a heating operation according to a preset heating adjustment strategy;

and acquiring a third running time of the heating operation, and judging whether to control the air conditioner to finish the high-temperature disinfection mode according to the third running time.

Preferably, if yes, before controlling the air conditioner to perform the temperature-raising operation according to a preset temperature-raising adjustment strategy, the method further includes:

acquiring current operation parameters of the air conditioner, and judging whether the current operation parameters meet preset judgment conditions;

and if so, controlling the air conditioner to execute the heating operation according to a preset heating adjustment strategy.

Preferably, before the obtaining the current operation parameter of the air conditioner and judging whether the current operation parameter meets a preset judgment condition, the method further includes:

adjusting the current operation parameters of the air conditioner according to a preset lifting rule;

correspondingly, the step of obtaining the current operation parameters of the air conditioner and judging whether the current operation parameters meet preset judgment conditions specifically comprises the following steps:

and acquiring the adjusted operating parameters of the air conditioner, and judging whether the adjusted operating parameters meet preset judgment conditions.

Preferably, if yes, after controlling the air conditioner to perform a temperature raising operation according to a preset temperature raising adjustment strategy, the method further includes:

acquiring real-time operation parameters of the air conditioner, and judging whether to adjust the first upper frequency limit according to the real-time operation parameters;

if so, reading a preset second maximum limit operation frequency, and taking the maximum limit operation frequency as a second frequency upper limit;

and adjusting the current operating frequency of the air conditioner according to the second upper frequency limit to realize high-temperature disinfection frequency-limiting protection of the air conditioner.

when the real-time temperature is not in the preset temperature range, judging whether the real-time temperature is greater than the maximum temperature corresponding to the preset temperature range;

if so, controlling the air conditioner to execute cooling operation according to a preset cooling adjustment strategy;

and acquiring a fourth running time of the cooling operation, and judging whether to control the air conditioner to finish the high-temperature disinfection mode according to the fourth running time.

Preferably, if yes, before controlling the air conditioner to perform the cooling operation according to a preset cooling adjustment strategy, the method further includes:

and if so, controlling the air conditioner to execute the cooling operation according to a preset cooling adjustment strategy.

In addition, to achieve the above object, the present invention also provides an air conditioner including: the device comprises a memory, a processor and an air conditioner high-temperature disinfection frequency-limiting protection program which is stored on the memory and can run on the processor, wherein the air conditioner high-temperature disinfection frequency-limiting protection program is configured to realize the steps of the air conditioner high-temperature disinfection frequency-limiting protection method.

In addition, in order to achieve the above object, the present invention further provides a storage medium, wherein the storage medium stores an air conditioner high temperature sterilization frequency-limiting protection program, and when the air conditioner high temperature sterilization frequency-limiting protection program is executed by a processor, the steps of the air conditioner high temperature sterilization frequency-limiting protection method as described above are implemented.

In addition, in order to achieve the above object, the present invention further provides a high temperature sterilization frequency-limiting protection device for an air conditioner, comprising: the device comprises an adjusting module, an operation protection module, a judging module, a frequency change value obtaining module, a reading module and a frequency limiting protection module;

the adjusting module is used for adjusting the current working mode into a high-temperature sterilization mode when receiving a high-temperature sterilization instruction;

the operation protection module is used for acquiring the operation parameters of the air conditioner in the high-temperature disinfection mode, determining an operation protection strategy according to the operation parameters and executing the operation protection strategy;

the judging module is used for judging whether the operation protection of the air conditioner needs to be removed or not when the execution of the operation protection strategy is finished;

the frequency change value acquisition module is used for removing the operation protection and acquiring the operation frequency change value of the air conditioner in the execution process of the operation protection strategy if the frequency change value acquisition module is used for removing the operation protection;

the reading module is used for reading a preset frequency adjustment strategy when the running frequency change value meets a preset frequency change condition;

and the frequency limiting protection module is used for adjusting the current operating frequency of the air conditioner according to the frequency adjustment strategy so as to realize high-temperature disinfection frequency limiting protection of the air conditioner.

The invention provides a high-temperature disinfection frequency-limiting protection method of an air conditioner, which comprises the steps of adjusting a current working mode into a high-temperature sterilization mode when a high-temperature sterilization instruction is received, obtaining operation parameters of the air conditioner in the high-temperature sterilization mode, determining an operation protection strategy according to the operation parameters, executing the operation protection strategy, judging whether the operation protection of the air conditioner needs to be removed or not when the execution of the operation protection strategy is finished, removing the operation protection if the operation protection strategy is finished, obtaining an operation frequency change value of the air conditioner in the execution process of the operation protection strategy, reading a preset frequency adjustment strategy when the operation frequency change value meets a preset frequency change condition, thereby reducing the frequency of protection frequency reduction and achieving the purpose of reducing the temperature fluctuation of the heat exchanger caused by frequent protection frequency reduction, the system is easier to reach the effect of steady state.

Drawings

FIG. 1 is a schematic diagram of an apparatus architecture of a hardware operating environment according to an embodiment of the present invention;

FIG. 2 is a schematic flow chart illustrating a first embodiment of a high-temperature sterilization frequency-limiting protection method for an air conditioner according to the present invention;

FIG. 3 is a logic diagram of current protection frequency limiting according to an embodiment of the present invention;

FIG. 4 is a high voltage protection frequency limiting logic diagram of an embodiment of the high temperature sterilization frequency limiting protection method of the air conditioner of the present invention;

FIG. 5 is a high temperature protection frequency-limiting logic diagram of an embodiment of the high temperature sterilization frequency-limiting protection method for an air conditioner according to the present invention;

FIG. 6 is a schematic diagram of an exhaust protection frequency-limiting logic diagram according to an embodiment of the high-temperature sterilization frequency-limiting protection method for an air conditioner of the present invention;

FIG. 7 is a schematic flow chart illustrating a second embodiment of the method for high-temperature sterilization and frequency-limiting protection of an air conditioner in accordance with the present invention;

FIG. 8 is a schematic flow chart illustrating a third embodiment of the method for high-temperature sterilization and frequency-limiting protection of an air conditioner in accordance with the present invention;

fig. 9 is a functional module schematic diagram of the first embodiment of the high-temperature sterilization frequency-limiting protection device of the air conditioner.

The implementation, functional features and advantages of the objects of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, fig. 1 is a schematic diagram of an apparatus structure of a hardware operating environment according to an embodiment of the present invention.

As shown in fig. 1, the apparatus may include: a processor 1001 such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may comprise a Display screen (Display), an input unit such as keys, and the optional user interface 1003 may also comprise a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The Memory 1005 may be a high speed Random Access Memory (RAM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.

Those skilled in the art will appreciate that the configuration of the apparatus shown in fig. 1 does not constitute a limitation of the apparatus and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

As shown in fig. 1, a memory 1005, which is a storage medium, may include therein an operating system, a network communication module, a user interface module, and an air conditioner high temperature sterilization frequency limit protection program.

In the device shown in fig. 1, the network interface 1004 is mainly used for connecting an external network and performing data communication with other network devices; the user interface 1003 is mainly used for connecting user equipment and performing data communication with the equipment; the device calls the air conditioner high-temperature disinfection frequency-limiting protection program stored in the memory 1005 through the processor 1001 and executes the implementation method of the air conditioner high-temperature disinfection frequency-limiting protection provided by the embodiment of the invention.

Based on the hardware structure, the embodiment of the high-temperature disinfection frequency-limiting protection method of the air conditioner is provided.

Referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the high-temperature sterilization frequency-limiting protection method of the air conditioner of the present invention.

In a first embodiment, the air conditioner high-temperature disinfection frequency-limiting protection method comprises the following steps:

step S10: and when a high-temperature sterilization instruction is received, adjusting the current working mode to be the high-temperature sterilization mode.

It should be noted that the execution subject of the present embodiment is a controller in an air conditioner, for example, a central controller in an air conditioner, and may also be a controller in another form.

Step S20: and acquiring the operating parameters of the air conditioner in the high-temperature disinfection mode, determining an operation protection strategy according to the operating parameters, and executing the operation protection strategy.

It should be noted that the operating parameter may be current, pressure, heat exchanger temperature of the air conditioner or exhaust temperature of the air conditioner.

It should be understood that the central controller determines an operation protection strategy according to the operation parameter, and the executing the operation protection strategy may be judging whether the current I satisfies I when the operation parameter is the current of the air conditioner>I_pWherein, I_pTo protect the downconversion threshold, e.g. I_pMay be 15A, when satisfied, then taking a protection shutdown strategy as the operation protection strategy; if not, judging whether the current I meets I or not_p>I>I_HWherein, I_HFor protecting frequency-limiting threshold, e.g. I_HCan be 13A, when I is not satisfied_p>I>I_HIf so, judging whether the current I meets I_H>I>I_RWherein, I_RTo protect the release threshold, e.g. I_RMay be 11A; when I is satisfied_H>I>I_RIf so, taking the protection frequency-limiting strategy as the operation protection strategy; when I is not satisfied_H>I>I_RSetting the operation protection strategy; when the current I satisfies I_p>I>I_HIf so, judging whether the current I meets I_H>I>I_RWhen satisfying I_H>I>I_RTaking a protection frequency reduction strategy and a protection frequency limiting strategy as the operation protection strategy; when I is not satisfied_H>I>I_RAnd taking a protection frequency limiting strategy as the operation protection strategy. I is_p、I_H、I_RIs shown in fig. 3.

The central controller determines an operation protection strategy according to the operation parameters, and the operation protection strategy can be executed by pressure, heat exchanger temperature or exhaust temperature of the air conditioner, the specific steps and the current are the same, and the steps are not explained one by one. Wherein, P_CThe pressure is indicated by a pressure indication,

as shown in figure 4,

in order to protect the down-conversion threshold value,

in order to protect the frequency-limited threshold value,

a protection release threshold; wherein, T₂Which is indicative of the temperature of the heat exchanger,

as shown in figure 5,

in order to protect the down-conversion threshold value,

in order to protect the frequency-limited threshold value,

a protection release threshold; wherein, T_dWhich indicates the temperature of the exhaust air of the air conditioner,

as shown in figure 6,

in order to protect the down-conversion threshold value,

in order to protect the frequency-limited threshold value,

to protect the release threshold.

Step S30: and when the execution of the operation protection strategy is finished, judging whether the operation protection of the air conditioner needs to be released or not.

It should be understood that the central controller determining whether the air conditioner needs to be released from operation protection may be to first obtain the current, the current pressure, the temperature of the heat exchanger or the current exhaust temperature of the air conditioner, at I<I_ROr

Or

Or

And when the air conditioner is in operation, the operation protection of the air conditioner is released.

Step S40: and if so, removing the operation protection and acquiring the operation frequency change value of the air conditioner in the execution process of the operation protection strategy.

It can be understood that, the step of the central controller acquiring the operation frequency variation value of the air conditioner in the execution process of the operation protection strategy may be acquiring a first operation frequency before the operation protection strategy, then acquiring a second operation frequency when the operation protection is released, then calculating a difference between the first operation frequency and the second operation frequency, and taking the difference as the operation frequency variation value of the air conditioner in the execution process of the operation protection strategy.

Step S50: and reading a preset frequency adjustment strategy when the operating frequency change value meets a preset frequency change condition.

It should be noted that the preset frequency variation condition may be that the preset protection down-conversion frequency drop △ F, △ F may be not less than 2Hz, and △ F may be preferably 5Hz to 10 Hz.

The preset frequency adjustment strategy may be the first maximum limit operating frequency F_m1And/or, a frequency recovery adjustment duration and a first up-conversion speed. Wherein the first maximum limit operating frequency F_m1The second operation frequency when the protection is released and the maximum allowable operation frequency of the air conditioner can be limited, and in order to avoid the fluctuation of the repeated frequency limitation, a specific method can be adopted: multiplying the second operation frequency by an amplification factor when the protection is released, or multiplying the maximum allowable operation frequency by a reduction factor, or multiplying the interval maximum operation frequency by a reduction factor, or multiplying the operation frequency before frequency limiting by a reduction factor, or presetting an interval value according to the outdoor environment temperature, wherein the amplification factor and the reduction factor can be set according to the test result.

Step S60: and adjusting the current operating frequency of the air conditioner according to the frequency adjustment strategy so as to realize high-temperature disinfection frequency-limiting protection of the air conditioner.

It should be understood that, the adjusting, by the central controller, the current operating frequency of the air conditioner according to the frequency adjustment strategy to achieve air conditioner high-temperature sterilization frequency-limiting protection may be reading a first maximum limited operating frequency in the frequency adjustment strategy, taking the first maximum limited operating frequency as a first upper frequency limit, and adjusting the current operating frequency of the air conditioner according to the first upper frequency limit to achieve air conditioner high-temperature sterilization frequency-limiting protection;

or reading the frequency recovery adjustment duration and the first frequency-increasing speed in the frequency adjustment strategy, and adjusting the current operating frequency of the air conditioner according to the frequency recovery adjustment duration and the first frequency-increasing speed to realize high-temperature disinfection frequency-limiting protection of the air conditioner.

It can be understood that the central controller adjusts the current operating frequency of the air conditioner according to the frequency recovery adjustment duration and the first frequency increasing speed, so that the target temperature is slowly and gradually approached, the temperature fluctuation of the heat exchanger caused by frequent protection and frequency reduction is reduced, and the system can more easily reach a stable state.

It should be understood that, when entering the high-temperature sterilization mode, the central controller may also start to count, and perform one or more of reduction or increase adjustment of the internal fan speed, the compressor frequency, the throttle opening, the outdoor fan speed, the air guide shutter or air guide plate, and the electric auxiliary heat according to a preset control rule, so that the temperature of the heat exchanger of the air conditioner reliably operates in a preset sterilization and disinfection temperature interval, and after reaching the preset operation time of the high-temperature sterilization mode, the sterilization is completed and the sterilization mode exits;

the air conditioner can be reliably and continuously operated at the high temperature of the heat exchanger to realize sterilization and disinfection by controlling the time and the temperature of the heat exchanger, so that the problems of compressor damage, service life of an electric control component and deformation of a plastic part caused by long-term operation under severe working conditions are solved;

through protection frequency limiting judgment, the electronic expansion valve is preferentially controlled to be opened or the outdoor fan is controlled to be turned down in a protection frequency limiting area, and the temperature fluctuation of the heat exchanger caused by frequency reduction is avoided by matching with the control of the indoor fan;

through protection frequency limiting judgment, after frequency reduction occurs, the electronic expansion valve is controlled to be opened greatly or the outdoor fan is controlled to be turned small, and the temperature fluctuation of the heat exchanger caused by frequent protection frequency reduction is reduced by matching with indoor fan control.

In a first embodiment, when a high-temperature sterilization instruction is received, a current working mode is adjusted to a high-temperature sterilization mode, operation parameters of the air conditioner in the high-temperature sterilization mode are obtained, an operation protection strategy is determined according to the operation parameters, the operation protection strategy is executed, when the execution of the operation protection strategy is finished, whether the operation protection of the air conditioner needs to be removed or not is judged, if yes, the operation protection is removed, an operation frequency change value of the air conditioner in the execution process of the operation protection strategy is obtained, and when the operation frequency change value meets a preset frequency change condition, a preset frequency adjustment strategy is read; in this embodiment, the current operating frequency of the air conditioner is adjusted through the frequency adjustment strategy, so that the frequency of protection frequency reduction can be reduced, the temperature fluctuation of the heat exchanger caused by frequent protection frequency reduction is reduced, and the system can more easily achieve the effect of a stable state.

Referring to fig. 7, fig. 7 is a flow chart illustrating a second embodiment of the high-temperature sterilization frequency-limiting protection method for an air conditioner according to the present invention, and the second embodiment of the high-temperature sterilization frequency-limiting protection method for an air conditioner according to the present invention is proposed based on the first embodiment shown in fig. 2.

In the second embodiment, before the step S20, the method further includes:

step S101: the current temperature of the heat exchanger and the first operation length of the high-temperature sterilization mode are obtained.

It should be understood that the central controller may obtain the current temperature of the heat exchanger directly through a temperature sensor provided on the air conditioner; the central controller may obtain the first operating duration of the high-temperature sterilization mode by setting a timer when the high-temperature sterilization mode is started, and directly obtaining the first operating duration of the high-temperature sterilization mode by reading the current timer time.

Step S102: and judging whether to carry out operation protection according to the current temperature and the first operation time length.

It can be understood that the central controller may determine whether to perform operation protection according to the current temperature and the first operation time period by first determining the current temperature T₂Whether or not T is satisfied₂<T_2pIf yes, judging whether the first operation time length is more than t₁Wherein, t₁Can be any time within the range of 0-60 min, preferably 3-20 min when the outdoor temperature is above 15 ℃, preferably 5-15 min when the outdoor temperature is 5-30 ℃, preferably 5-60 min when the outdoor temperature is below 5 ℃, and when the first operation time is longer than t₁And when the operation is required, the operation protection is carried out.

Step S103: if so, executing the steps of obtaining the operating parameters of the air conditioner in the high-temperature disinfection mode, determining an operation protection strategy according to the operating parameters, and executing the operation protection strategy.

It should be understood that, when the central controller determines to continue to control the air conditioner to maintain the high-temperature disinfection mode according to the current temperature and the first operation duration, the central controller performs the steps of obtaining the operation parameters of the air conditioner in the high-temperature disinfection mode, determining an operation protection strategy according to the operation parameters, and executing the operation protection strategy.

In the second embodiment, the step S60 includes:

step S601: reading a first maximum limit operating frequency in the frequency adjustment strategy.

It should be noted that the first maximum limit operating frequency F_m1The second operation frequency when the protection is released and the maximum allowable operation frequency of the air conditioner can be limited, and in order to avoid the fluctuation of the repeated frequency limitation, a specific method can be adopted: multiplying the second operation frequency by an amplification factor when the protection is released, or multiplying the maximum allowable operation frequency by a reduction factor, or multiplying the maximum operation frequency by a reduction factor, or multiplying the operation frequency before the frequency limitation by a reduction factor, or presetting an interval value according to the outdoor environment temperature, wherein the amplification factor and the reduction factorThe number may be set according to the test results.

Step S602: and taking the first maximum limited operation frequency as a first upper frequency limit, and adjusting the current operation frequency of the air conditioner according to the first upper frequency limit to realize high-temperature disinfection frequency-limiting protection of the air conditioner.

It should be understood that the central controller may adjust the current operating frequency of the air conditioner according to the first upper frequency limit by limiting the current operating frequency of the air conditioner to be always not greater than the first upper frequency limit, so as to avoid temperature fluctuation caused by cycle-to-cycle frequency protection.

In the second embodiment, after the step S60, the method further includes:

step S70: and acquiring the real-time temperature of the heat exchanger, and judging whether the real-time temperature is in a preset temperature range.

It should be noted that the preset temperature range may be [ T ]_2L，T_2H]Wherein, the virus is not resistant to high temperature, the higher the sterilization temperature is, the better the sterilization temperature is theoretically, but the air-conditioning refrigeration system has an upper pressure limit corresponding to an upper temperature limit in consideration of reliability,

mainly based on the upper temperature limit,

and

selecting according to the required temperature for sterilization and disinfection, wherein

Mainly used for controlling the stability of the system, on one hand, preventing frequent regulation fluctuation and on the other hand, accelerating the stability of the system, generally

Preferably 1 to 3 ℃.

It should be understood thatIf yes, the central controller judges whether the real-time temperature is in a preset temperature range or not, and can judge the real-time temperature T of the heat exchanger₂Whether or not T is satisfied₂∈[T_2L，T_2H]。

Step S80: and when the real-time temperature is within a preset temperature range, controlling the air conditioner to keep running at the current state.

It will be appreciated that T may be when the real-time temperature is within a preset temperature range₂∈[T_2L，T_2H]In this case, the controlling of the air conditioner by the central controller to maintain the current state may be controlling of both the frequency and the rotational speed of the air conditioner to maintain the current state.

Step S90: and acquiring a second operation time length for the air conditioner to keep operating in the current state, and judging whether to control the air conditioner to finish the high-temperature disinfection mode or not according to the second operation time length.

It should be understood that the central controller determining whether to control the air conditioner to end the high temperature sterilization mode according to the second operation duration may be determining whether the second operation duration is equal to a preset second duration, and controlling the air conditioner to end the high temperature sterilization mode when the second operation duration is equal to the preset second duration; when the second operation time length is not equal to a preset second duration time, acquiring the accumulated operation time of the high-temperature disinfection mode, judging whether the accumulated operation time is equal to a fifth accumulated operation time or not, and controlling the air conditioner to end the high-temperature disinfection mode when the accumulated operation time is equal to the fifth accumulated operation time; or judging whether to control the air conditioner to end the high-temperature disinfection mode according to whether an exit signal is received.

It should be noted that the preset second duration may be greater than 10min, and preferably 30 to 45 min.

In a second embodiment, whether operation protection is performed or not is judged according to the current temperature and the first operation time of the high-temperature disinfection mode by acquiring the current temperature of a heat exchanger and the first operation time of the high-temperature disinfection mode, if so, the operation parameters of the air conditioner in the high-temperature disinfection mode are acquired, an operation protection strategy is determined according to the operation parameters, and the operation protection strategy is executed, so that the reliable continuous operation of the air conditioner at the high temperature of the heat exchanger can be realized through time and temperature control of the heat exchanger, sterilization and disinfection are realized, and the problems of damage to a compressor, the service life of an electric control element and deformation of a plastic part caused by long-term operation under severe working conditions are avoided;

in the second embodiment, the first maximum limit operation frequency in the frequency adjustment strategy is read, the first maximum limit operation frequency is used as a first upper frequency limit, and the current operation frequency of the air conditioner is adjusted according to the first upper frequency limit, so that the high-temperature disinfection frequency-limited protection of the air conditioner is realized, and the temperature fluctuation caused by cycle-time frequency protection can be avoided.

Referring to fig. 8, fig. 8 is a flow chart illustrating a second embodiment of the high-temperature sterilization frequency-limiting protection method for an air conditioner according to the present invention, and a third embodiment of the high-temperature sterilization frequency-limiting protection method for an air conditioner according to the present invention is proposed based on the second embodiment shown in fig. 7.

In the third embodiment, after the step S601, the method further includes:

step S6011: and acquiring the rotating speed of the indoor unit of the air conditioner, and judging whether the rotating speed of the indoor unit is equal to a preset minimum rotating speed or not.

It should be understood that the central controller may obtain the indoor unit rotation speed of the air conditioner from a sensing device of the air conditioner.

Step S6012: if not, reading a preset second frequency adjustment strategy.

It should be noted that the second frequency adjustment strategy may be to limit the frequency increasing speed, that is, to preset the second frequency increasing speed, or to limit the reduction of the indoor fan speed.

Accordingly, the step S602 includes:

step S602': and taking the first maximum limited operation frequency as a first upper frequency limit, and adjusting the current operation frequency of the air conditioner according to the second frequency adjustment strategy and the first upper frequency limit to realize high-temperature disinfection frequency-limiting protection of the air conditioner.

It should be understood that the central controller adjusts the current operating frequency of the air conditioner according to the second frequency adjustment strategy and the first frequency upper limit, so that the high-temperature disinfection frequency-limiting protection of the air conditioner can reduce the temperature fluctuation of the heat exchanger caused by frequent protection and frequency reduction, and the system can reach a stable state more easily.

Further, the step S602' includes:

it should be understood that the second frequency-raising speed may be preset in the second frequency-adjustment strategy.

It can be understood that the central controller adjusts the current operating frequency of the air conditioner according to the second frequency increasing speed and the first frequency upper limit, so that the high-temperature disinfection frequency-limiting protection of the air conditioner can reduce the temperature fluctuation of the heat exchanger caused by frequent protection and frequency reduction, and the system can reach a stable state more easily.

In the third embodiment, after the step S70, the method further includes:

step S701: and when the real-time temperature is not in the preset temperature range, judging whether the real-time temperature is smaller than the minimum temperature corresponding to the preset temperature range.

It is to be understood that the real-time temperature T of the heat exchanger may be when the real-time temperature is not within the preset temperature range₂Satisfy the requirement of

The central controller judges the factWhether the time temperature is less than the minimum temperature corresponding to the preset temperature range or not can be used for judging the real-time temperature T of the heat exchanger₂Whether or not T is satisfied₂<T_2LAnd if so, the real-time temperature is smaller than the minimum temperature corresponding to the preset temperature range.

Step S702: and if so, controlling the air conditioner to execute the heating operation according to a preset heating adjustment strategy.

It should be noted that the preset temperature-rise adjustment strategy may be at least one of raising the frequency of the compressor, raising the rotation speed of the outdoor fan, reducing the angle of the air guide shutter, reducing the angle of the air guide plate, turning on the electric auxiliary heat, and reducing the electronic expansion valve.

Step S703: and acquiring a third running time length of the heating operation, and judging whether to control the air conditioner to finish the high-temperature disinfection mode according to the third running time length.

It should be understood that the central controller may obtain the third operation time period of the temperature increasing operation by starting to time when the temperature increasing operation is started, obtaining the current time after the temperature increasing operation is completed, and using the current time as the third operation time period.

It can be understood that, the judging whether to control the air conditioner to end the high-temperature disinfection mode or not by the central controller according to the third operation time length may be judging whether the third operation time length is equal to a preset third duration time or not, and if so, ending the high-temperature disinfection mode; when the third operation time length is not equal to a preset third duration time, acquiring the accumulated operation time of the high-temperature disinfection mode, judging whether the accumulated operation time is equal to a fifth accumulated operation time or not, and when the accumulated operation time is equal to the fifth accumulated operation time, controlling the air conditioner to end the high-temperature disinfection mode; or judging whether to control the air conditioner to end the high-temperature disinfection mode according to whether to receive an exit signal.

The preset third duration may be 30 to 90min, and preferably 30 to 60 min.

Further, before the step S702, the method further includes:

step S7011: and acquiring the current operation parameters of the air conditioner, and judging whether the current operation parameters meet preset judgment conditions.

It should be noted that the current operating parameter may be the rotating speed of the indoor unit or the frequency of the compressor.

It should be understood that, when the current operation parameter is the rotation speed of the indoor unit, the central controller obtains the current operation parameter of the air conditioner, and whether the current operation parameter meets the preset judgment condition or not may be whether the rotation speed of the indoor unit is equal to the minimum rotation speed of the indoor unit or not; when the current operating parameter is the compressor frequency, it may be determined whether the compressor frequency is equal to a preset compressor maximum frequency.

Further, before the step S7011, the method further includes:

It should be noted that the preset lifting rule may be to keep other parameters such as the current frequency, and control the indoor fan rotation speed to be reduced according to the preset indoor fan rotation speed reduction rule; the preset lifting rule may also be that other parameters such as the current wind speed are kept, and the frequency of the compressor is controlled to be lifted according to the preset compressor frequency lifting rule. The preset indoor fan rotating speed reduction rule can be that the preset indoor fan rotating speed reduction rule is reduced according to at least one of step length, T2-T2L difference calculation, the percentage of the current rotating speed, the percentage of the rated rotating speed and gears; wherein the preset compressor frequency increasing rule can be that the increasing is carried out according to at least one of the step length, the T2-T2L difference calculation, the percentage of the current frequency and the percentage of the rated frequency.

It should be understood that, when the preset lifting rule is to keep other parameters such as the current frequency and the like, and the rotating speed of the indoor fan is controlled to be reduced according to the preset indoor fan rotating speed reduction rule, the central controller acquires the adjusted operating parameters of the air conditioner, and judges whether the adjusted operating parameters meet the preset judgment condition or not, namely, the current rotating speed of the indoor unit is acquired, and whether the current rotating speed of the indoor unit is equal to the preset minimum rotating speed of the indoor unit is judged; when the preset lifting rule is to keep other parameters such as the current wind speed and the like, and the compressor frequency is controlled to be lifted according to the preset compressor frequency lifting rule, the central controller acquires the adjusted operation parameters of the air conditioner, judges whether the adjusted operation parameters meet the preset judgment condition or not, and can acquire the current frequency of the compressor and judge whether the current frequency of the compressor is equal to the highest frequency of the preset compressor or not.

Step S7012: and if so, executing the step of controlling the air conditioner to execute the heating operation according to a preset heating adjustment strategy.

It can be understood that, when the current operating parameter meets the preset judgment condition, the central controller executes the step of controlling the air conditioner to execute the heating operation according to the preset heating adjustment strategy if the current operating parameter meets the preset judgment condition.

Further, after the step S702, the method further includes:

step S7021: and acquiring real-time operation parameters of the air conditioner, and judging whether to adjust the first upper frequency limit according to the real-time operation parameters.

It should be noted that the real-time operation parameter may be whether the protection limit is removed, a counter n, a current operation frequency F, a current wind speed, and a duration.

It should be understood that, the central controller may determine whether to adjust the first upper frequency limit according to the real-time operation parameter by first determining whether to remove the protection limit, and whether the first counter n satisfies that n is greater than or equal to n_minWhether the current operating frequency F satisfies F ═ F_mWhether the current wind speed meets the preset minimum wind speed or not and whether the duration time is equal to the preset ninth duration time or notAnd if all the judgment results are yes, adjusting the first upper frequency limit.

Step S7022: if yes, reading a preset second maximum limit operation frequency, and taking the maximum limit operation frequency as a second upper frequency limit.

It should be noted that, when the protection frequency limitation occurs, the maximum operating frequency F is defined after the protection is released_m＝F_m1If the currently defined maximum F has been reached during the adjustment process_mAnd the wind speed can not be reduced any more, and the real-time temperature T of the heat exchanger in a certain time₂When the sterilization condition can not be satisfied, the operation frequency is required to be properly set to F_m＝F_m2So that F_m2At F_m1And F_maxIn between, a specific method may be to employ the current F_m1Multiplying by a scaling factor, or multiplying by a scaling factor using the maximum allowable operating frequency, or multiplying by a scaling factor using the interval maximum operating frequency, or multiplying by a scaling factor according to the operating frequency before guard down, or returning to the last maximum limit operating frequency F_m。

Step S7023: and adjusting the current operating frequency of the air conditioner according to the second upper frequency limit to realize high-temperature disinfection frequency-limiting protection of the air conditioner.

It should be understood that the adjustment of the current operating frequency of the air conditioner according to the second upper frequency limit to achieve the high-temperature sterilization frequency limit protection of the air conditioner may be from the lowest rotating speed of the fan to the lowest operating frequency to F_m1If the high-temperature sterilization temperature can not be met after the operation is carried out for a period of time, the maximum frequency limit F is gradually released after the relevant conditions are met_m2The temperature of the heat exchanger is slowly and gradually approached to the target temperature, and the temperature fluctuation of the heat exchanger caused by frequent guard band dropping is reduced, so that the system can more easily reach a stable state.

In the third embodiment, after the step S60, the method further includes:

step S701': and when the real-time temperature is not in the preset temperature range, judging whether the real-time temperature is greater than the maximum temperature corresponding to the preset temperature range.

The step of judging whether the real-time temperature is greater than the maximum temperature corresponding to the preset temperature range by the central controller can be judging the real-time temperature T of the heat exchanger₂Whether or not T is satisfied₂>T_2HAnd if so, the real-time temperature is greater than the maximum temperature corresponding to the preset temperature range.

Step S702': and if so, controlling the air conditioner to execute cooling operation according to a preset cooling adjustment strategy.

It should be noted that the preset cooling adjustment strategy may be at least one of reducing the frequency of the compressor, reducing the rotation speed of the outdoor fan, increasing the angle of the air guide louver, increasing the angle of the air guide plate, gradually exiting without wind sensation, and increasing the electronic expansion valve.

Step S703': and acquiring a fourth running time length of the cooling operation, and judging whether to control the air conditioner to finish the high-temperature disinfection mode according to the fourth running time length.

It should be understood that, the obtaining, by the central controller, the fourth operation duration of the cooling operation may be that, when the cooling operation is started to be executed, timing is started, and after the cooling operation is completed, a current time is obtained, and the current time is taken as the fourth operation duration.

It can be understood that, the central controller determines whether to control the air conditioner to end the high-temperature sterilization mode according to the fourth operation time length, and may determine whether the fourth operation time length is equal to a preset fourth duration time, if so, the high-temperature sterilization mode is ended; when the fourth operation time length is not equal to a preset fourth duration time, acquiring the accumulated operation time of the high-temperature disinfection mode, judging whether the accumulated operation time is equal to a fifth accumulated operation time or not, and when the accumulated operation time is equal to the fifth accumulated operation time, controlling the air conditioner to end the high-temperature disinfection mode; or judging whether to control the air conditioner to end the high-temperature disinfection mode according to whether to receive an exit signal.

The preset fourth duration time can be 10-60 min, wherein the preferable time is 30-45 min; the fifth cumulative operation time can be more than 10min, wherein 35-130 min is preferred, when the room temperature is more than 15 ℃, 35-100 min is preferred, the outdoor temperature is 5-15 ℃, 40-120 min is preferred, and the outdoor temperature is below 5 ℃ and 50-130 min is preferred.

Further, before the step S702', the method further includes:

step S7011': and acquiring the current operation parameters of the air conditioner, and judging whether the current operation parameters meet preset judgment conditions.

It should be understood that the current operation parameter may be an indoor unit wind speed, and the central controller obtains the current operation parameter of the air conditioner and determines whether the current operation parameter satisfies a preset determination condition may be to determine whether the indoor unit wind speed is equal to a preset indoor unit maximum wind speed.

Step S7012': if so, executing the step of controlling the air conditioner to execute the cooling operation according to a preset cooling adjustment strategy.

And understandably, when the current operation parameters meet preset judgment conditions, the central controller executes the step of controlling the air conditioner to execute cooling operation according to a preset cooling adjustment strategy if the current operation parameters meet the preset judgment conditions.

In a third embodiment, when the real-time temperature is not within the preset temperature range, determining whether the real-time temperature is less than a minimum temperature corresponding to the preset temperature range, if so, controlling the air conditioner to perform a temperature raising operation according to a preset temperature raising adjustment strategy to obtain a real-time operating parameter of the air conditioner, and determining whether to adjust the upper limit of the first frequency according to the real-time operating parameter, if so, reading a second maximum limit operating frequency which is preset, taking the maximum limit operating frequency as a second upper limit of the frequency, adjusting the current operating frequency of the air conditioner according to the second upper limit of the frequency, so as to achieve high-temperature disinfection frequency-limit protection of the air conditioner to obtain a third operating length of the temperature raising operation, and determining whether to control the air conditioner to end the high-temperature disinfection mode according to the third operating length, therefore, when the rotating speed of the fan is the lowest, the operating frequency is the first maximum limited operating frequency, and if the high-temperature sterilization temperature cannot be met after the fan is operated for a period of time, the fan slowly and gradually approaches the target temperature, so that the temperature fluctuation of the heat exchanger caused by frequent protection and frequency reduction is reduced, and the system can more easily reach a stable state.

The invention further provides a high-temperature disinfection frequency-limiting protection device for the air conditioner.

Referring to fig. 9, fig. 9 is a functional module schematic diagram of a first embodiment of the high-temperature sterilization frequency-limiting protection device for an air conditioner according to the present invention.

In a first embodiment of the high temperature sterilization frequency-limiting protection device for an air conditioner, the high temperature sterilization frequency-limiting protection device for the air conditioner comprises:

the adjusting module 10 is configured to adjust the current operating mode to the high-temperature sterilization mode when receiving the high-temperature sterilization instruction.

The operation protection module 20 is configured to obtain operation parameters of the air conditioner in the high-temperature sterilization mode, determine an operation protection policy according to the operation parameters, and execute the operation protection policy.

as shown in figure 4,

in order to protect the down-conversion threshold value,

in order to protect the frequency-limited threshold value,

as shown in figure 5,

in order to protect the down-conversion threshold value,

in order to protect the frequency-limited threshold value,

as shown in figure 6,

in order to protect the down-conversion threshold value,

in order to protect the frequency-limited threshold value,

to protect the release threshold.

The judging module 30 is configured to judge whether the operation protection of the air conditioner needs to be released when the execution of the operation protection policy is completed.

Or

Or

And the frequency change value acquisition module 40 is configured to, if yes, remove the operation protection and acquire an operation frequency change value of the air conditioner in the execution process of the operation protection policy.

The reading module 50 is configured to read a preset frequency adjustment policy when the operating frequency variation value meets a preset frequency variation condition.

The preset frequency adjustment strategy may be the first maximum limit operating frequency F_m1And/or, a frequency recovery adjustment duration and a first up-conversion speed. Wherein the first maximum limit operating frequency F_m1The second operation frequency when the protection is released and the maximum allowable operation frequency of the air conditioner can be limited, and in order to avoid the fluctuation of the repeated frequency limitation, a specific method can be adopted: multiplying the second operation frequency by an amplification factor when the protection is released, or multiplying the maximum allowable operation frequency by a reduction factor, or multiplying the interval maximum operation frequency by a reduction factor, or multiplying the operation frequency before the frequency limitation by a reduction factor, or presetting an interval value according to the outdoor environment temperature, wherein the release is performedThe large coefficient and the small coefficient may be set according to the test result.

And the frequency limiting protection module 60 is configured to adjust the current operating frequency of the air conditioner according to the frequency adjustment strategy, so as to implement high-temperature disinfection frequency limiting protection of the air conditioner.

Understandably, the central controller adjusts the current operating frequency of the air conditioner according to the frequency recovery adjusting time length and the first frequency increasing speed, so that the target temperature is slowly and gradually approached, the temperature fluctuation of the heat exchanger caused by frequent protection and frequency reduction is reduced, and the system can more easily reach a stable state

In this embodiment, when a high-temperature sterilization instruction is received, a current working mode is adjusted to a high-temperature sterilization mode, an operation parameter of the air conditioner in the high-temperature sterilization mode is acquired, an operation protection strategy is determined according to the operation parameter, the operation protection strategy is executed, when the execution of the operation protection strategy is finished, whether the operation protection of the air conditioner needs to be removed or not is judged, if yes, the operation protection is removed, an operation frequency change value of the air conditioner in the execution process of the operation protection strategy is acquired, and when the operation frequency change value meets a preset frequency change condition, a preset frequency adjustment strategy is read; in this embodiment, the current operating frequency of the air conditioner is adjusted through the frequency adjustment strategy, so that the frequency of protection frequency reduction can be reduced, the temperature fluctuation of the heat exchanger caused by frequent protection frequency reduction is reduced, and the system can more easily achieve the effect of a stable state.

Because the high-temperature disinfection frequency-limiting protection device of the air conditioner adopts all the technical schemes of all the embodiments, the high-temperature disinfection frequency-limiting protection device at least has all the beneficial effects brought by the technical schemes of the embodiments, and the details are not repeated.

In addition, to achieve the above object, the present invention also provides an air conditioner including: the high-temperature disinfection frequency-limiting protection method comprises a memory, a processor and an air conditioner high-temperature disinfection frequency-limiting protection program which is stored on the memory and can run on the processor, wherein the air conditioner high-temperature disinfection frequency-limiting protection program is configured to realize the steps of the high-temperature disinfection frequency-limiting protection method for the air conditioner, and the air conditioner is a parking air conditioner.

Since the air conditioner adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.

In addition, an embodiment of the present invention further provides a storage medium, where an air conditioner high-temperature sterilization frequency-limiting protection program is stored on the storage medium, and the air conditioner high-temperature sterilization frequency-limiting protection program is executed by a processor according to the above-mentioned steps of the air conditioner high-temperature sterilization frequency-limiting protection method.

Since the storage medium adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a computer-readable storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, and includes instructions for enabling an intelligent terminal (which may be a mobile phone, a computer, a terminal, an air conditioner, or a network terminal) to execute the method according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the present specification and drawings, or used directly or indirectly in other related fields, are included in the scope of the present invention.

Claims

1. A high-temperature disinfection frequency-limiting protection method for an air conditioner is characterized by comprising the following steps:

2. The air conditioner high-temperature sterilization frequency-limiting protection method as claimed in claim 1, wherein before the steps of obtaining the operation parameters of the air conditioner in the high-temperature sterilization mode, determining an operation protection strategy according to the operation parameters, and executing the operation protection strategy, the air conditioner high-temperature sterilization frequency-limiting protection method further comprises:

3. The method for high-temperature sterilization frequency-limiting protection of an air conditioner according to claim 1, wherein the step of adjusting the current operating frequency of the air conditioner according to the frequency adjustment strategy to achieve high-temperature sterilization frequency-limiting protection of the air conditioner specifically comprises:

or;

4. The air conditioner high temperature sterilization frequency-limiting protection method according to claim 3, wherein after the step of reading the first maximum limit operation frequency in the frequency adjustment strategy, the air conditioner high temperature sterilization frequency-limiting protection method further comprises:

if not, reading a preset second frequency adjustment strategy;

correspondingly, the step of taking the first maximum limited operation frequency as a first upper frequency limit and adjusting the current operation frequency of the air conditioner according to the first upper frequency limit to realize the high-temperature disinfection frequency-limiting protection of the air conditioner specifically comprises:

5. The method according to claim 4, wherein the step of setting the first maximum limited operating frequency as a first upper frequency limit and adjusting the current operating frequency of the air conditioner according to the second frequency adjustment strategy and the first upper frequency limit to achieve the air conditioner high temperature sterilization frequency limit protection specifically comprises:

6. The method for high-temperature sterilization frequency-limiting protection of an air conditioner according to claim 5, wherein after the step of adjusting the current operating frequency of the air conditioner according to the frequency adjustment strategy to achieve high-temperature sterilization frequency-limiting protection of the air conditioner, the method for high-temperature sterilization frequency-limiting protection of an air conditioner further comprises:

7. The air conditioner high temperature sterilization frequency-limiting protection method according to claim 6, wherein after the step of obtaining the real-time temperature of the heat exchanger and determining whether the real-time temperature is within a preset temperature range, the air conditioner high temperature sterilization frequency-limiting protection method further comprises:

8. The air conditioner high temperature disinfection frequency-limiting protection method according to claim 7, wherein if yes, before the step of controlling the air conditioner to perform the heating operation according to a preset heating adjustment strategy, the air conditioner high temperature disinfection frequency-limiting protection method further comprises:

acquiring current operation parameters of the air conditioner, and judging whether the current operation parameters meet preset judgment conditions or not;

9. The air conditioner high temperature disinfection frequency-limiting protection method according to claim 8, wherein before the current operation parameter of the air conditioner is obtained and whether the current operation parameter meets a preset judgment condition is judged, the air conditioner high temperature disinfection frequency-limiting protection method further comprises:

10. The air conditioner high temperature disinfection frequency-limiting protection method according to claim 7, wherein if yes, after the step of controlling the air conditioner to perform the heating operation according to a preset heating adjustment strategy, the air conditioner high temperature disinfection frequency-limiting protection method further comprises:

11. The air conditioner high temperature sterilization frequency-limiting protection method according to claim 6, wherein after the step of obtaining the real-time temperature of the heat exchanger and determining whether the real-time temperature is within a preset temperature range, the air conditioner high temperature sterilization frequency-limiting protection method further comprises:

12. The method as claimed in claim 11, wherein before the step of controlling the air conditioner to perform the cooling operation according to the preset cooling adjustment strategy if the air conditioner is in the high-temperature sterilization frequency-limiting protection mode, the method further comprises:

13. An air conditioner, characterized in that the air conditioner comprises: a memory, a processor and an air conditioner high temperature disinfection frequency limiting protection program stored on the memory and operable on the processor, the air conditioner high temperature disinfection frequency limiting protection program being configured to implement the steps of the air conditioner high temperature disinfection frequency limiting protection method according to any one of claims 1 to 12.

14. A storage medium, wherein the storage medium stores thereon a high-temperature sterilization frequency-limiting protection program of an air conditioner, and when the high-temperature sterilization frequency-limiting protection program of the air conditioner is executed by a processor, the steps of the high-temperature sterilization frequency-limiting protection method of the air conditioner according to any one of claims 1 to 12 are implemented.

15. The utility model provides an air conditioner high temperature disinfection limit for frequency protection device which characterized in that, air conditioner high temperature disinfection limit for frequency protection device includes: the device comprises an adjusting module, an operation protection module, a judging module, a frequency change value obtaining module, a reading module and a frequency limiting protection module;

the judging module is used for judging whether the operation protection of the air conditioner needs to be released or not when the execution of the operation protection strategy is finished;