CN114061105B

CN114061105B - Air conditioner high-temperature disinfection frequency limiting protection method, air conditioner, storage medium and device

Info

Publication number: CN114061105B
Application number: CN202111367330.0A
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: 2024-02-20
Anticipated expiration: 2040-03-27
Also published as: CN114061105A; CN111380179B; CN111380179A

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: when a high-temperature sterilization instruction is received, the current working mode is adjusted to be a high-temperature sterilization mode, the 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 operation protection strategy is executed, whether the operation protection of the air conditioner needs to be released is judged, if yes, the operation protection is released, the 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 the preset frequency change condition, the preset frequency adjustment strategy is read, so that the frequency of protection frequency reduction can be reduced, the temperature fluctuation of a heat exchanger caused by frequent protection frequency reduction is reduced, and the system can more easily reach the effect of a stable state.

Description

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

The invention relates to a method for protecting air conditioner by high-temperature disinfection and frequency limitation, an air conditioner, a storage medium and a device, which are classified as Chinese patent application with the application number of 202010234160.8 and the application number of 2020 and 03 month and 27 days.

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 resistant to high temperature, and data show that the bacteria and viruses can kill some bacteria harmful to human bodies and inactivate most of the viruses at a temperature of more than 56 ℃ for a certain time. The indoor heat exchanger of the air conditioner is in a high temperature state when heating, but is limited by the requirements of reliability, heating performance and noise of a system and components of the air conditioner, and the problem that the system is not easy to reach a stable state due to frequent heat fluctuation of the heat exchanger for protecting a cooling band when the air conditioner is used for heating in the market at present is generally existed. Therefore, how to perform frequency limiting protection on the air conditioner is a technical problem to be solved when the air conditioner performs high-temperature disinfection.

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 carry out frequency limiting protection on the air conditioner when the air conditioner is disinfected at high temperature.

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

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

acquiring 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;

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

if yes, the operation protection is released, and an operation frequency change value of the air conditioner in the execution process of the operation protection strategy is obtained;

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

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

Preferably, the method further includes, before acquiring the operation parameter of the air conditioner in the high-temperature disinfection mode, determining an operation protection policy according to the operation parameter, and executing the operation protection policy:

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

judging whether to perform operation protection or not according to the current temperature and the first operation time length;

If yes, executing the steps of 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.

Preferably, the adjusting the current operating frequency of the air conditioner according to the frequency adjusting policy to implement high-temperature disinfection and frequency limiting protection of the air conditioner includes:

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

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

or;

reading frequency recovery adjustment time length and first frequency raising 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 raising speed so as to realize high-temperature disinfection frequency limiting protection of the air conditioner.

Preferably, after the reading of the first maximum defined operation 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 frequency upper limit and adjusting the current operation frequency of the air conditioner according to the first frequency upper limit to realize high-temperature disinfection frequency limiting protection of the air conditioner specifically comprises the following steps:

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

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

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

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

Preferably, the adjusting the current operating frequency of the air conditioner according to the frequency adjusting policy to implement high-temperature disinfection and frequency limiting protection of the air conditioner further includes:

acquiring the real-time temperature of the heat exchanger, and judging whether the real-time temperature is in a preset temperature range or not;

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

and acquiring a second operation time length for the air conditioner to keep running in the current state, and judging whether to control the air conditioner to finish the high-temperature disinfection mode according to the second operation time length.

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

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;

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

and acquiring a third operation 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 operation time length.

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

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

if yes, executing the step of controlling the air conditioner to execute the heating operation according to a preset heating adjustment strategy.

Preferably, 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 method further includes:

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

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

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

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

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

If yes, reading a preset second maximum limiting operation frequency, and taking the maximum limiting operation frequency as a second frequency upper limit;

and adjusting the current operating frequency of the air conditioner according to the second frequency upper limit so as to realize high-temperature disinfection and 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 yes, controlling the air conditioner to execute cooling operation according to a preset cooling adjustment strategy;

and acquiring a fourth operation 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 operation time length.

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

and if yes, executing the step of controlling the air conditioner to execute cooling operation according to a preset cooling adjustment strategy.

In addition, in order to achieve the above object, the present invention also provides an air conditioner, including: 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, on which an air conditioner high-temperature disinfection frequency-limiting protection program is stored, which when executed by a processor, implements the steps of the air conditioner high-temperature disinfection frequency-limiting protection method as described above.

In addition, in order to achieve the above purpose, the present invention also provides a high-temperature disinfection frequency limiting protection device for an air conditioner, the high-temperature disinfection frequency limiting protection device for an air conditioner comprises: the device comprises an adjusting module, an operation protection module, a judging module, a frequency change value acquisition module, a reading module and a frequency limiting protection module;

the adjusting module is used for adjusting the current working mode to a high-temperature sterilization mode when receiving the 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 released or not when the operation protection strategy is executed;

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

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

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.

According to the high-temperature disinfection frequency-limiting protection method for the air conditioner, when a high-temperature disinfection instruction is received, the current working mode is adjusted to be a high-temperature disinfection mode, the operation parameters of the air conditioner in the high-temperature disinfection mode are obtained, an operation protection strategy is determined according to the operation parameters, the operation protection strategy is executed, when the operation protection strategy is executed, whether the operation protection of the air conditioner needs to be relieved is judged, if yes, the operation protection is relieved, the operation frequency change value of the air conditioner in the execution process of the operation protection strategy is obtained, when the operation frequency change value meets the preset frequency change condition, the preset frequency adjustment strategy is read, so that the frequency of protection frequency reduction can be reduced, the temperature fluctuation of a heat exchanger caused by frequent protection frequency reduction is reduced, and the system is easier to achieve the effect of a stable state.

Drawings

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

FIG. 2 is a schematic flow chart of a first embodiment of a method for protecting an air conditioner by high-temperature disinfection and frequency limiting according to the present invention;

FIG. 3 is a logic diagram of current protection and frequency limiting according to an embodiment of the method for protecting an air conditioner by high temperature sterilization and frequency limiting according to the present invention;

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

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

FIG. 6 is a diagram illustrating an exemplary embodiment of an exhaust protection frequency limiting logic for an air conditioner according to the present invention;

FIG. 7 is a schematic flow chart of a second embodiment of a method for protecting an air conditioner by high-temperature disinfection and frequency limiting according to the present invention;

FIG. 8 is a schematic flow chart of a third embodiment of a method for protecting an air conditioner by high-temperature disinfection and frequency limiting according to the present invention;

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

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

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Referring to fig. 1, fig. 1 is a schematic device structure diagram of a hardware running 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 (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as keys, and the optional user interface 1003 may also include 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 (Random Access Memory, RAM), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.

It will be appreciated by those skilled in the art that the device structure shown in fig. 1 is not limiting of the device and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.

As shown in fig. 1, an operating system, a network communication module, a user interface module, and an air conditioner high temperature sterilization frequency limiting protection program may be included in a memory 1005 as a storage medium.

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

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

Referring to fig. 2, fig. 2 is a flowchart illustrating a first embodiment of a high-temperature disinfection frequency-limiting protection method for an air conditioner according to the present invention.

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

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

The execution body of the present embodiment is a controller in an air conditioner, for example, a central controller in an air conditioner, and may be other types of controllers, which are not limited in this embodiment, and the central controller is taken as an example in the present embodiment.

Step S20: and 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 operation parameter may be a current, a pressure, a heat exchanger temperature, or an exhaust temperature of the air conditioner.

It should be understood that the central controller determines an operation protection policy according to the operation parameter, and executes the operation protection policy by determining whether the current I satisfies I when the operation parameter is a current of the air conditioner>I _p Wherein I _p To protect the down-conversion threshold, e.g. I _p 15A, and when the protection shutdown strategy is satisfied, taking the protection shutdown strategy as the operation protection strategy; when not meeting, then judging whether the current I meets I _p >I>I _H Wherein I _H To protect the frequency-limiting threshold, e.g. I _H May be 13A, when I is not satisfied _p >I>I _H When the current I meets I _H >I>I _R Wherein I _R To protect against threshold, e.g. I _R May be 11A; when meeting I _H >I>I _R Taking the protection frequency limiting strategy as the operation protection strategy; when not meeting I _H >I>I _R The operation protection strategy is not set; when the current I meets I _p >I>I _H When the current I meets I _H >I>I _R When meeting I _H >I>I _R When the method is used, a protection frequency-reducing strategy and a protection frequency-limiting strategy are used as the operation protection strategy; when not meeting I _H >I>I _R And when the operation protection strategy is used, the protection frequency limiting strategy is used as the operation protection strategy. I _p 、I _H 、I _R A specific relationship diagram of (2) is shown in fig. 3.

The central controller determines an operation protection strategy according to the operation parameters, and executes the operation protection strategy, or the operation protection strategy can be determined by pressure, heat exchanger temperature or exhaust temperature of the air conditioner, and specific steps and currents are the same and are not described one by one. Wherein P is _C The pressure is indicated as such and,the specific relation diagram of (2) is shown in FIG. 4>To protect the down-conversion threshold +.>To protect the frequency limiting threshold, P _CR Is a protection release threshold; wherein T is ₂ Indicating heat exchanger temperature, < >>The specific relation diagram of (2) is shown in FIG. 5>To protect the down-conversion threshold +.>For protecting the frequency limiting threshold, < >>Is a protection release threshold;wherein T is _d Represents the exhaust temperature of the air conditioner, +.>The specific relation diagram of (2) is shown in FIG. 6>In order to protect the down-conversion threshold,for protecting the frequency limiting threshold, < >>Is a protection release threshold.

Step S30: and when the operation protection strategy is executed, judging whether the operation protection of the air conditioner needs to be released.

It should be understood that the central controller may determine whether the operation protection of the air conditioner needs to be released by first acquiring the current, the current pressure, the heat exchanger temperature or the current exhaust temperature of the air conditioner, where I <I _R Or (b)Or->Or->And when the air conditioner is in a working state, the operation protection of the air conditioner is released.

Step S40: if yes, the operation protection is released, and an operation frequency change value of the air conditioner in the operation protection strategy executing process is obtained.

It can be understood that the central controller may acquire the first operation frequency before the operation protection policy is executed, acquire the second operation frequency when the operation protection is released, calculate a difference between the first operation frequency and the second operation frequency, and use the difference as the operation frequency variation value of the air conditioner during the operation protection policy is executed.

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

It should be noted that the preset frequency variation condition may be a preset guard down-conversion frequency decrease Δf, and Δf may be not less than 2Hz, where Δf may be preferably 5Hz to 10Hz.

It should be noted that the preset frequency adjustment strategy may be the first maximum limited operating frequency F _m1 And/or, the frequency is restored to be adjusted for a long time and the first frequency raising speed. Wherein the first maximum limiting operating frequency F _m1 The second operation frequency can be limited between the protection release time and the maximum allowable operation frequency of the air conditioner, and in order to avoid the repeated frequency limiting fluctuation, a specific method can be adopted: the second operating frequency during protection release is multiplied by an amplification factor, or the maximum allowed operating frequency is multiplied by a reduction factor, or the interval maximum operating frequency is multiplied by the reduction factor, or the reduction factor is multiplied according to the operating frequency before frequency limiting, or the interval value is preset 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 and 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 frequency adjustment strategy to realize high-temperature disinfection frequency-limiting protection of the air conditioner, which may be to read a first maximum limited operating frequency in the frequency adjustment strategy, take the first maximum limited operating frequency as a first frequency upper limit, and adjust the current operating frequency of the air conditioner according to the first frequency upper limit to realize high-temperature disinfection frequency-limiting protection of the air conditioner;

And the current running frequency of the air conditioner can be adjusted according to the frequency recovery adjustment time length and the first frequency raising speed so as 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 raising speed, so as to achieve slow successive approximation of the target temperature, reduce the temperature fluctuation of the heat exchanger caused by frequent protection of the frequency lowering band, and enable the system to more easily reach a stable state.

It should be understood that the central controller may also start timing when entering the high-temperature sterilization mode, and perform one or more of reduction or increase adjustment on the air speed of the internal machine, the frequency of the compressor, the opening of the throttle valve, the rotating speed of the outdoor fan, the air guiding louver or the air guiding 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 a preset operation duration of the high-temperature sterilization mode, sterilization is completed and the sterilization mode is exited;

the air conditioner can reliably and continuously run at the high temperature of the heat exchanger to realize sterilization and disinfection through time and temperature control of the heat exchanger, so that the problems of compressor damage, service life of electric control components and deformation of plastic parts caused by long-term running under severe working conditions are avoided;

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

after the frequency reduction occurs through the judgment of the protection frequency limit, the electronic expansion valve is controlled to be opened or the outdoor fan is controlled to be opened to be reduced, and the temperature fluctuation of the heat exchanger in the frequency reduction frequency band is reduced by matching with the control of the indoor fan.

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 operation protection strategy is executed, whether the operation protection of the air conditioner needs to be released is judged, if yes, the operation protection is released, 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; according to the 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 is easier to achieve the effect of a stable state.

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

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

step S101: and acquiring the current temperature of the heat exchanger and the first operation duration of the high-temperature disinfection mode.

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

Step S102: and judging whether to perform operation protection or not according to the current temperature and the first operation duration.

It can be appreciated that the central controller may determine whether to perform operation protection according to the current temperature and the first operation duration by first determining the current temperature T ₂ Whether or not to satisfy T ₂ <T _2p When the first operation time is satisfied, judging whether the first operation time is greater than t ₁ Wherein t is ₁ Can be in any of the ranges of 0 to 60 minutesThe time is 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 the length of the first operation time is greater than t ₁ And when the operation protection is performed.

Step S103: if yes, executing the steps of 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.

It should be understood that when the central controller determines that the air conditioner is continuously controlled to maintain the high-temperature disinfection mode according to the current temperature and the first operation duration, the step of 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 is performed.

In a second embodiment, the step S60 includes:

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

The first maximum limiting operating frequency F _m1 The second operation frequency can be limited between the protection release time and the maximum allowable operation frequency of the air conditioner, and in order to avoid the repeated frequency limiting fluctuation, a specific method can be adopted: the second operating frequency during protection release is multiplied by an amplification factor, or the maximum allowed operating frequency is multiplied by a reduction factor, or the interval maximum operating frequency is multiplied by the reduction factor, or the reduction factor is multiplied according to the operating frequency before frequency limiting, or the interval value is preset according to the outdoor environment temperature, wherein the amplification factor and the reduction factor can be set according to the test result.

Step S602: and taking the first maximum limited operation frequency as a first frequency upper limit, and adjusting the current operation frequency of the air conditioner according to the first frequency upper limit so as 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, so as to limit the current operating frequency of the air conditioner not to be greater than the first upper frequency limit all the time, thereby avoiding temperature fluctuation caused by cycle time frequency protection.

In a 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 sterilizing temperature is, the better the sterilizing temperature is theoretically, but the air conditioner refrigerating system has an upper pressure limit in view of reliability, and corresponds to one upper temperature limit,mainly based on the upper temperature limit>And->Selected according to the required temperature for sterilization and disinfection, wherein ∈10>Mainly used for controlling the stability of the system, on one hand, preventing frequent regulation fluctuation, on the other hand, accelerating the stability of the system, and generallyPreferably 1 to 3 ℃.

It should be appreciated that the central controller determining whether the real-time temperature is within a preset temperature range may be determining the real-time temperature T of the heat exchanger ₂ Whether or not to satisfy T ₂ ∈[T _2L ，T _2H ]。

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

It will be appreciated that at the real-time temperature, at a pre-determined temperatureThe temperature range can be T ₂ ∈[T _2L ，T _2H ]When the central controller controls the air conditioner to keep running in the current state, the frequency and the rotating speed of the air conditioner can be controlled to keep running in the current state.

Step S90: and acquiring a second operation time length for the air conditioner to keep running in the current state, and judging whether to control the air conditioner to finish the high-temperature disinfection mode according to the second operation time length.

It should be understood that, the central controller may determine whether to control the air conditioner to end the high-temperature sterilization mode according to the second operation duration, or determine whether the second operation duration is equal to a preset second duration, and control 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 duration is not equal to a preset second duration, 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, and controlling the air conditioner to finish 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 to receive the exit signal.

The preset second duration may be greater than 10 minutes, and preferably 30 to 45 minutes.

In the second embodiment, whether operation protection is performed is judged by acquiring the current temperature of the heat exchanger and the first operation duration of the high-temperature disinfection mode, if yes, 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 the temperature control of time and the heat exchanger, the sterilization and disinfection are realized, and the problems of compressor damage, electric control component life and plastic part deformation caused by long-term operation under severe working conditions are avoided;

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

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

In a 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.

It should be understood that the central controller may acquire the rotational speed of the indoor unit of the air conditioner from the 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 policy may be to limit the frequency raising speed, that is, preset the second frequency raising speed, or limit the indoor fan speed to be reduced.

Accordingly, the step S602 includes:

step S602': and taking the first maximum limited operation frequency as a first frequency upper limit, and adjusting the current operation frequency of the air conditioner according to the second frequency adjustment strategy and the first frequency upper limit so as 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 as to realize high-temperature disinfection frequency limiting protection of the air conditioner, and reduce temperature fluctuation of the heat exchanger from frequent protection of the frequency reduction band, so that the system can more easily reach a stable state.

Further, the step S602' includes:

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

It can be understood that the central controller adjusts the current operating frequency of the air conditioner according to the second frequency raising 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 which frequently protects the frequency lowering band, and the system can more easily reach a stable state.

In a 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 will be appreciated that the real-time temperature T of the heat exchanger may be when the real-time temperature is not within the preset temperature range ₂ Satisfy the following requirementsThe central controller judging whether the real-time temperature is smaller than the minimum temperature corresponding to the preset temperature range may be the real-time temperature T of the heat exchanger ₂ Whether or not to satisfy T ₂ <T _2L If so, the real-time temperature is smaller than the minimum temperature corresponding to the preset temperature range.

Step S702: if yes, controlling the air conditioner to execute 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 increasing the frequency of the compressor, increasing the rotational speed of the outdoor fan, turning down the angle of the air guide louver, turning down the angle of the air guide plate, turning on the electric auxiliary heat, and turning down the electronic expansion valve.

Step S703: and acquiring a third operation 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 operation time length.

It should be understood that the central controller may acquire the third operation duration of the temperature raising operation, start timing when the temperature raising operation starts to be performed, acquire the current time after the temperature raising operation is performed, and take the current time as the third operation duration.

It can be understood that, the central controller may determine whether to control the air conditioner to end the high-temperature sterilization mode according to the third operation duration, or determine whether the third operation duration is equal to a preset third duration, if so, end the high-temperature sterilization mode; when the third operation duration is not equal to a preset third duration, 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, and controlling the air conditioner to finish 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 to receive the exit signal.

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

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 judging conditions or not.

It should be noted that the current operation parameter may be an indoor unit rotation speed or a compressor frequency.

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 determines whether the current operation parameter meets a preset determination condition or not may be to determine whether the rotation speed of the indoor unit is equal to a preset minimum rotation speed of the indoor unit; when the current operating parameter is a 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 other parameters such as maintaining the current frequency, and the rotation speed of the indoor fan is controlled to be reduced according to the preset rotation speed reduction rule of the indoor fan; the preset lifting rule can also be other parameters such as maintaining the current wind speed, and the like, and the frequency of the control compressor is lifted according to the preset frequency lifting rule of the compressor. The preset indoor fan rotating speed reducing rule can be at least one of a step length, a T2-T2L difference value calculation, a current rotating speed percentage, a rated rotating speed percentage and a gear to reduce; the preset compressor frequency increasing rule can be at least one of step length, T2-T2L difference value calculation, percentage of current frequency and percentage of rated frequency.

It should be understood that, when the preset lifting rule is to maintain the current frequency and other parameters, and control the indoor fan rotation speed to be reduced according to the preset indoor fan rotation speed reducing rule, the central controller obtains the operation parameters adjusted by the air conditioner, and judges whether the adjusted operation parameters meet the preset judging conditions or not, if so, the current rotation speed of the indoor unit is obtained, and judges whether the current rotation speed of the indoor unit is equal to the preset minimum rotation speed of the indoor unit or not; when the preset lifting rule is to keep other parameters such as the current wind speed and the like, and control the frequency of the compressor to be lifted according to the preset frequency lifting rule of the compressor, the central controller acquires the operation parameters adjusted by the air conditioner and judges whether the operation parameters after adjustment meet preset judging conditions or not, namely, the current frequency of the compressor is acquired and judges whether the current frequency of the compressor is equal to the highest frequency of the preset compressor or not.

Step S7012: if yes, 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 operation 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 yes.

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 frequency upper limit according to the real-time operation parameters.

The real-time operation parameters may be whether to release the protection limit, the counter n, the current operation frequency F, the current wind speed, and the duration.

It should be appreciated that the determination by the central controller of whether to adjust the first upper frequency limit based on the real-time operation parameters may be a first determination of whether to remove the protection limit, a first determination of whether the counter n satisfies n.gtoreq.n _min Whether the current operating frequency F satisfies f=f _m And when all the judging results are yes, the first frequency upper limit is adjusted.

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

When the protection frequency limit occurs, the maximum operating frequency F is limited after the protection is released _m ＝F _m1 If the currently defined maximum F has been reached during the adjustment process _m And the wind speed can not be reduced any moreLow, real-time temperature T of heat exchanger in a certain time ₂ When the sterilization condition is not satisfied, the maximum limited operation frequency is properly released to F _m ＝F _m2 So that F _m2 At F _m1 And F is equal to _max In between, a specific method may be to use the current F _m1 Multiplying by an enlargement factor, or multiplying by a reduction factor by a maximum allowable operating frequency, or multiplying by a reduction factor by an interval maximum operating frequency, or multiplying by a reduction factor according to the operating frequency before guard-band down-conversion, or reverting to the last maximum defined operating frequency F _m 。

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

It should be understood that the adjusting the current operating frequency of the air conditioner according to the second upper frequency limit to achieve the high-temperature disinfection and frequency-limiting protection of the air conditioner may be when the fan rotation speed is the lowest and the operating frequency is the F _m1 If the high-temperature sterilization temperature cannot be met after a period of operation, gradually releasing the maximum frequency limit F after the related conditions are met _m2 The gradual approach to the target temperature is realized slowly, and the temperature fluctuation of the heat exchanger from the frequency reduction band is reduced, so that the system is easier to reach a stable state.

In a 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.

It will be appreciated that the real-time temperature T of the heat exchanger may be when the real-time temperature is not within the preset temperature range ₂ Satisfy the following requirementsThe central controller judging whether the real-time temperature is greater than the maximum temperature corresponding to the preset temperature range may be the real-time temperature T of the heat exchanger ₂ Whether or not to meet->If so, the real-time temperature is greater than the maximum temperature corresponding to the preset temperature range.

Step S702': if yes, 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 rotational speed of the outdoor fan, opening the angle of the air guide shutter, opening the angle of the air guide plate, gradually exiting the air without feeling, and opening the electronic expansion valve.

Step S703': and acquiring a fourth operation 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 operation 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 starts to be performed, timing is started, and after the cooling operation is performed, the current time is obtained and the current time is taken as the fourth operation duration.

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

It should be noted that the preset fourth duration may be 10 to 60 minutes, wherein 30 to 45 minutes is preferable; the fifth cumulative operating time may be greater than 10 minutes, wherein 35 to 130 minutes is preferred, 35 to 100 minutes is preferred when the room temperature is greater than 15 ℃, 40 to 120 minutes is preferred when the outdoor temperature is 5 to 15 ℃, and 50 to 130 minutes is preferred when the outdoor temperature is below 5 ℃.

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 judging conditions or not.

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

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

It can be understood that the step of controlling the air conditioner to perform the cooling operation according to the preset cooling adjustment strategy is performed when the current operation parameter meets the preset judgment condition by the central controller.

In a third embodiment, when the real-time temperature is not within the preset temperature range, whether the real-time temperature is smaller than the minimum temperature corresponding to the preset temperature range is judged, if yes, the air conditioner is controlled to perform heating operation according to a preset heating adjustment strategy, real-time operation parameters of the air conditioner are obtained, whether the first frequency upper limit is adjusted or not is judged according to the real-time operation parameters, if yes, a preset second maximum limiting operation frequency is read, the maximum limiting operation frequency is taken as a second frequency upper limit, the current operation frequency of the air conditioner is adjusted according to the second frequency upper limit, the third operation time of the heating operation is obtained through high-temperature sterilization frequency limiting protection of the air conditioner, and whether the high-temperature sterilization mode is controlled to be finished is judged according to the third operation time, so that when the fan speed is the lowest, the operation frequency reaches the first maximum limiting operation frequency, if the high-temperature cannot be met after a period of operation, the temperature is slowly gradually approximated, the current operation frequency of the air conditioner is reduced, the heat exchanger is easily and the system is more stable in a stable state.

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

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

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

the adjusting module 10 is configured to adjust the current working mode to a high-temperature sterilization mode when receiving the high-temperature sterilization command.

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

It should be understood that the central controller determines an operation protection policy according to the operation parameter, and executes the operation protection policy by determining whether the current I satisfies I when the operation parameter is a current of the air conditioner >I _p Wherein I _p To protect the down-conversion threshold, e.g. I _p 15A, and when the protection shutdown strategy is satisfied, taking the protection shutdown strategy as the operation protection strategy; when not meeting, then judging whether the current I meets I _p >I>I _H Wherein I _H To protect the frequency-limiting threshold, e.g. I _H May be 13A, when I is not satisfied _p >I>I _H When the current I meets I _H >I>I _R Wherein I _R To protect against threshold, e.g. I _R May be 11A; when meeting I _H >I>I _R Taking the protection frequency limiting strategy as the operation protection strategy; when not meeting I _H >I>I _R The operation protection strategy is not set; when the current I meets I _p >I>I _H When the current I meets I _H >I>I _R When meeting I _H >I>I _R When the method is used, a protection frequency-reducing strategy and a protection frequency-limiting strategy are used as the operation protection strategy; when not meeting I _H >I>I _R And when the operation protection strategy is used, the protection frequency limiting strategy is used as the operation protection strategy. I _p 、I _H 、I _R A specific relationship diagram of (2) is shown in fig. 3.

The central controller determines an operation protection strategy according to the operation parameters, and executes the operation protection strategy, or the operation protection strategy can be determined by pressure, heat exchanger temperature or exhaust temperature of the air conditioner, and specific steps and currents are the same and are not described one by one. Wherein P is _C The pressure is indicated as such and, The specific relation diagram of (2) is shown in FIG. 4>To protect the down-conversion threshold +.>For protecting the frequency limiting threshold, < >>Is a protection release threshold; wherein T is ₂ Indicating heat exchanger temperature, < >>The specific relation diagram of (2) is shown in FIG. 5>To protect the down-conversion threshold +.>For protecting the frequency limiting threshold, < >>Is a protection release threshold; wherein T is _d Represents the exhaust temperature of the air conditioner, +.>The specific relation diagram of (2) is shown in FIG. 6>In order to protect the down-conversion threshold,for protecting the frequency limiting threshold, < >>Is a protection release threshold.

The judging module 30 is configured to judge whether to release the operation protection of the air conditioner when the operation protection policy is executed.

It should be understood that the central controller may determine whether the operation protection of the air conditioner needs to be released by first acquiring the current, the current pressure, the heat exchanger temperature or the current exhaust temperature of the air conditioner, where I<I _R Or (b)Or->Or->And when the air conditioner is in a working state, the operation protection of the air conditioner is released.

The frequency change value obtaining module 40 is configured to, if yes, remove the operation protection, and obtain an operation frequency change value of the air conditioner during the execution of the operation protection policy.

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

The frequency limiting protection module 60 is configured to adjust the current operating frequency of the air conditioner according to the frequency adjustment policy, so as to implement 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 raising speed, so as to achieve slow successive approximation of the target temperature, reduce the temperature fluctuation of the heat exchanger caused by frequent protection of the frequency lowering band, and make the system 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 obtained, an operation protection strategy is determined according to the operation parameter, the operation protection strategy is executed, when the operation protection strategy is executed, whether the operation protection of the air conditioner needs to be released is judged, if yes, the operation protection is released, 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; according to the 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 is easier to achieve the effect of a stable state.

The high-temperature disinfection frequency limiting protection device of the air conditioner adopts all the technical schemes of all the embodiments, so that the high-temperature disinfection frequency limiting protection device at least has all the beneficial effects brought by the technical schemes of the embodiments, and is not described in detail herein.

In addition, in order to achieve the above object, the present invention also provides an air conditioner, including: the air conditioner comprises a memory, a processor and an air conditioner high-temperature disinfection frequency limiting protection program which is stored in 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, and the air conditioner is a parking air conditioner.

Because the air conditioner adopts all the technical schemes of all the embodiments, the air conditioner at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.

In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium is stored with an air conditioner high-temperature disinfection frequency limiting protection program, and the air conditioner high-temperature disinfection frequency limiting protection program is executed by a processor to execute the steps of the air conditioner high-temperature disinfection frequency limiting protection method.

Because the storage medium adopts all the technical schemes of all the embodiments, the storage medium has at least all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a computer readable storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above, comprising several instructions for causing a smart terminal device (which may be a mobile phone, a computer, a terminal device, an air conditioner, or a network terminal device, etc.) to perform the method according to the embodiments of the present invention.

The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims

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

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

if yes, the operation protection is released, and an operation frequency change value of the air conditioner in the execution process of the operation protection strategy is obtained, wherein the operation frequency change value is a difference value between an operation frequency before the operation protection strategy and an operation frequency when the operation protection strategy is released;

when the operation frequency change value meets a preset frequency change condition, reading a preset frequency adjustment strategy, wherein the preset frequency adjustment strategy comprises a first maximum limiting operation frequency, and/or frequency recovery adjustment duration and a first frequency raising speed, and the first maximum limiting operation frequency is limited between a second operation frequency when protection is released and a maximum allowed operation frequency of the air conditioner, and the method comprises the following steps: the first maximum limited operation frequency is equal to the second operation frequency multiplied by the amplification factor when the protection is released;

2. The method for protecting high-temperature disinfection and frequency limitation of an air conditioner according to claim 1, wherein the step 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 is preceded by the steps of:

3. The method for protecting the high-temperature disinfection and frequency limitation of the 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 realize the high-temperature disinfection and frequency limitation protection of the air conditioner specifically comprises the following steps:

or;

4. The method of claim 3, wherein after the step of reading the first maximum defined operating frequency in the frequency adjustment strategy, the method further comprises:

if not, reading a preset second frequency adjustment strategy, wherein the second frequency adjustment strategy comprises limiting the frequency raising speed or limiting the speed of the indoor fan;

5. The method for protecting high-temperature disinfection and frequency limitation of an air conditioner according to claim 4, wherein the step of using the first maximum limited operation frequency as a first frequency upper limit and adjusting the current operation frequency of the air conditioner according to the second frequency adjustment strategy and the first frequency upper limit to realize high-temperature disinfection and frequency limitation protection of the air conditioner specifically comprises the following steps:

6. The method for protecting high-temperature disinfection and frequency limitation 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 realize the high-temperature disinfection and frequency limitation protection of the air conditioner, the method for protecting high-temperature disinfection and frequency limitation of the air conditioner further comprises:

acquiring a second operation time length of the air conditioner which keeps running in a current state, and judging whether the second operation time length is equal to a preset second duration time;

when the second operation duration is equal to a preset second duration, controlling the air conditioner to end the high-temperature disinfection mode;

when the second operation duration is not equal to a preset second duration, acquiring the accumulated operation time of the high-temperature disinfection mode, and judging whether the accumulated operation time is equal to a fifth accumulated operation time;

and controlling the air conditioner to end the high-temperature sterilization mode when the accumulated operation time is equal to a fifth accumulated operation time.

7. The method for protecting high-temperature disinfection and frequency limitation of an air conditioner according to claim 6, wherein after the step of obtaining the real-time temperature of the heat exchanger and judging whether the real-time temperature is within a preset temperature range, the method for protecting high-temperature disinfection and frequency limitation of an air conditioner further comprises:

if yes, controlling the air conditioner to perform heating operation according to a preset heating adjustment strategy, wherein the preset heating adjustment strategy is at least one of increasing the frequency of a compressor, increasing the rotating speed of an outdoor fan, closing a small air guide shutter angle, closing a small air guide plate angle, opening electric auxiliary heat and closing a small electronic expansion valve;

8. The method for protecting high-temperature sterilization and frequency limiting of an air conditioner according to claim 7, wherein before the step of controlling the air conditioner to perform a temperature raising operation according to a preset temperature raising adjustment strategy if the air conditioner is in the above state, the method for protecting high-temperature sterilization and frequency limiting of an air conditioner further comprises:

Acquiring current operation parameters of the air conditioner;

when the current operation parameter is the rotation speed of the indoor unit, judging whether the rotation speed of the indoor unit is equal to the preset minimum rotation speed of the indoor unit;

when the current operation parameter is the compressor frequency, judging whether the compressor frequency is equal to a preset highest compressor frequency;

9. The method for protecting high-temperature sterilization and frequency limitation of an air conditioner according to claim 8, wherein the method for protecting high-temperature sterilization and frequency limitation of an air conditioner further comprises, before the current operation parameters of the air conditioner are obtained:

10. The method for protecting high-temperature disinfection and frequency limitation of an air conditioner according to claim 7, wherein after the step of controlling the air conditioner to perform a temperature raising operation according to a preset temperature raising adjustment strategy if the step is yes, the method for protecting high-temperature disinfection and frequency limitation of an air conditioner further comprises:

11. The method for protecting high-temperature disinfection and frequency limitation of an air conditioner according to claim 6, wherein after the step of obtaining the real-time temperature of the heat exchanger and judging whether the real-time temperature is within a preset temperature range, the method for protecting high-temperature disinfection and frequency limitation of an air conditioner further comprises:

12. The method for protecting high-temperature disinfection and frequency limitation of an air conditioner according to claim 11, wherein before the step of controlling the air conditioner to perform cooling operation according to a preset cooling adjustment strategy if the air conditioner is in the above state, the method for protecting high-temperature disinfection and frequency limitation of an air conditioner 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 limited protection program stored on the memory and operable on the processor, the air conditioner high temperature disinfection frequency limited protection program configured to implement the steps of the air conditioner high temperature disinfection frequency limited protection method as claimed in any one of claims 1 to 12.

14. A storage medium, wherein a high-temperature disinfection frequency-limited protection program of an air conditioner is stored on the storage medium, and the high-temperature disinfection frequency-limited protection program of the air conditioner realizes the steps of the high-temperature disinfection frequency-limited protection method of the air conditioner according to any one of claims 1 to 12 when being executed by a processor.

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

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

the frequency change value acquisition module is used for removing the operation protection if yes, and acquiring an operation frequency change value of the air conditioner in the execution process of the operation protection strategy, wherein the operation frequency change value is a difference value between an operation frequency before the operation protection strategy and an operation frequency when the operation protection strategy is removed;

the reading module is configured to read a preset frequency adjustment policy when the running frequency variation value meets a preset frequency variation condition, where the preset frequency adjustment policy includes a first maximum limited running frequency, and/or a frequency recovery adjustment duration and a first frequency raising speed, where the first maximum limited running frequency limits between a second running frequency when protection is released and a maximum allowed running frequency of the air conditioner, and includes: the first maximum limited operation frequency is equal to the second operation frequency multiplied by the amplification factor when the protection is released;