CN115950053A - Air conditioner defrosting control method and device, air conditioner and storage medium - Google Patents
Air conditioner defrosting control method and device, air conditioner and storage medium Download PDFInfo
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- CN115950053A CN115950053A CN202211567301.3A CN202211567301A CN115950053A CN 115950053 A CN115950053 A CN 115950053A CN 202211567301 A CN202211567301 A CN 202211567301A CN 115950053 A CN115950053 A CN 115950053A
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Abstract
The disclosure relates to the field of air conditioners, in particular to an air conditioner defrosting control method and device, an air conditioner and a storage medium. The method comprises the following steps: monitoring a temperature parameter related to the operation of the air conditioner and the operation frequency of the air conditioner under the condition that the air conditioner is in a heating mode; and responding to the fact that the air conditioner is in a low-frequency operation state, and determining whether defrosting of the air conditioner is started or not according to the temperature parameter and a corresponding first defrosting starting judgment condition in the low-frequency operation state, wherein the low-frequency operation state is a state that the duration of the operation frequency lower than a preset operation frequency threshold reaches a preset low-frequency operation duration. So, can be in the mode of heating at the air conditioner, and under the condition of long-term low frequency operation, when the air conditioner frosts, accurately, open the air conditioner in time and defrost to avoid influencing the air conditioner effect of heating, and then can improve user's use and experience.
Description
Technical Field
The disclosure relates to the field of air conditioners, in particular to an air conditioner defrosting control method and device, an air conditioner and a storage medium.
Background
Along with the popularization of air conditioners, the requirement of people on the comfort level of the air conditioners in use is higher and higher. In order to prevent the compressor sound and refrigerant sound generated during the high-frequency operation of the compressor from being transmitted into the room, the industry usually corrects the upper frequency limit of different windshields. When the air conditioner is in the heating mode and is operating at a lower damper, the operating frequency of the air conditioner compressor is limited to a lower frequency.
When the operating frequency of the air conditioner compressor is in a low frequency state for a long time, the heating capacity of the air conditioner is low, the temperature of the indoor coil pipe is low relative to the normal condition, and the temperature of the outdoor coil pipe is high relative to the normal condition. The outdoor coil temperature may be above defrost conditions but below the air dew point temperature, resulting in frost formation. If the air conditioner compressor is in the condition of low-frequency operation for a long time, even if the air conditioner frosts and freezes, the temperature of the outdoor coil pipe can still not be reduced to the preset value for triggering the defrosting program, so that the air conditioner can not be started for defrosting, the heating capacity of the air conditioner can be further reduced, and the use experience of a user is reduced.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides an air conditioner defrosting control method, apparatus, air conditioner and storage medium.
According to a first aspect of the embodiments of the present disclosure, there is provided an air conditioner defrosting control method, including:
monitoring a temperature parameter related to the operation of the air conditioner and the operation frequency of the air conditioner under the condition that the air conditioner is in a heating mode;
and responding to the condition that the air conditioner is in a low-frequency running state, and determining whether the air conditioner is started to defrost according to the temperature parameter and a corresponding first defrosting starting judgment condition in the low-frequency running state, wherein the low-frequency running state is a state that the duration of the running frequency lower than a preset running frequency threshold reaches a preset low-frequency running duration.
Optionally, the temperature parameters include outdoor coil temperature, exhaust temperature, and outdoor ambient temperature; the first defrosting start judgment condition comprises the following steps:
the duration of the defrosting temperature threshold corresponding to the outdoor environment temperature is not longer than the first preset duration, and the maximum difference value of the exhaust temperature is not less than the exhaust temperature difference threshold corresponding to the outdoor environment temperature in the previous second preset duration from the current moment.
Optionally, if the outdoor ambient temperature is less than a first temperature threshold, the first defrosting start determining condition further includes:
the difference value of the outdoor environment temperature relative to the outdoor coil temperature is not less than the defrosting temperature difference threshold corresponding to the outdoor environment temperature, and the duration of the defrosting temperature difference threshold reaches the first preset duration.
Optionally, the defrosting temperature threshold and the outdoor environment temperature are in a positive correlation variation relationship.
Optionally, the determining that the air conditioner is in a low-frequency operation state includes:
determining the low-frequency operation time length corresponding to the outdoor environment temperature according to the outdoor environment temperature;
and if the duration that the operating frequency of the air conditioner is lower than the operating frequency threshold reaches the low-frequency operating duration corresponding to the outdoor environment temperature, determining that the air conditioner is in the low-frequency operating state.
Optionally, the low-frequency operation time length and the outdoor environment temperature are in a negative correlation variation relationship.
Optionally, the temperature parameters further include an indoor ambient temperature and an indoor coil temperature; the first defrosting start judgment condition further includes:
and the maximum difference value of the indoor coil temperature in the second preset time period from the current moment onward is not greater than the indoor coil temperature difference threshold corresponding to the indoor environment temperature.
Optionally, the indoor coil temperature difference threshold value and the indoor ambient temperature are in a positive correlation variation relationship.
Optionally, the method further comprises:
and responding to the condition that the air conditioner is not in the low-frequency running state, and determining whether to start defrosting of the air conditioner according to the temperature parameter and a second defrosting start judgment condition corresponding to the conventional running state.
Optionally, a defrosting temperature threshold corresponding to the same outdoor environment temperature in the first defrosting start judging condition is smaller than a defrosting temperature threshold corresponding to the same outdoor environment temperature in the second defrosting start judging condition; and/or the defrosting temperature difference threshold corresponding to the same outdoor environment temperature in the first defrosting start judging condition is smaller than the defrosting temperature difference threshold corresponding to the same outdoor environment temperature in the second defrosting start judging condition.
According to a second aspect of the embodiments of the present disclosure, there is provided an air conditioner defrosting control device including:
the monitoring module is used for monitoring temperature parameters related to the operation of the air conditioner and the operation frequency of the air conditioner under the condition that the air conditioner is in a heating mode;
the first determining module is used for responding to the determination that the air conditioner is in a low-frequency running state, and determining whether to start defrosting of the air conditioner according to the temperature parameter and a corresponding defrosting starting judgment condition in the low-frequency running state, wherein the low-frequency running state is a state that the duration of the running frequency lower than a preset running frequency threshold reaches a preset low-frequency running duration.
According to a third aspect of the embodiments of the present disclosure, there is provided an air conditioner including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to execute the steps of the air conditioner defrosting control method provided by the first aspect of the disclosure.
According to a fourth aspect of the embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon computer program instructions, which when executed by a processor, implement the steps of the air conditioner defrosting control method provided by the first aspect of the present disclosure.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
under the condition that the air conditioner is in a heating mode, the current operation state of the air conditioner can be determined through the monitored temperature parameters related to the operation of the air conditioner and the operation frequency of the air conditioner. If the air conditioner is determined to be in the low-frequency operation state, whether the air conditioner is started for defrosting is determined according to the temperature parameter and the corresponding first defrosting starting judgment condition in the low-frequency operation state, namely whether the air conditioner is frosted or not can be determined by combining the temperature parameter related to the operation of the air conditioner when the air conditioner operates at the low frequency for a long time, and then whether the air conditioner is started for defrosting can be determined. So, can be in the mode of heating at the air conditioner, and under the condition of long-term low frequency operation, when the air conditioner frosts, accurately, open the air conditioner in time and defrost to avoid influencing the effect of heating of air conditioner, and then improve user's use and experience.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flowchart illustrating an air conditioner defrosting control method according to an exemplary embodiment.
Fig. 2 is a block diagram illustrating an air conditioner defrosting control apparatus according to an exemplary embodiment.
Fig. 3 is a block diagram illustrating an air conditioner according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
It should be noted that all actions of acquiring signals, information or data in the present application are performed under the premise of complying with the corresponding data protection regulation policy of the country of the location and obtaining the authorization given by the owner of the corresponding device.
Fig. 1 is a flowchart illustrating an air conditioner defrosting control method according to an exemplary embodiment. The method can be applied to a controller of an air conditioner. As shown in fig. 1, the method may include S101 to S102.
And S101, monitoring temperature parameters related to the operation of the air conditioner and the operation frequency of the air conditioner under the condition that the air conditioner is in a heating mode.
For example, the operating frequency of the air conditioner may be acquired by a frequency sensor provided on a compressor of the air conditioner. The temperature parameters related to the air conditioner can be obtained through temperature sensors which are arranged on the positions of an outdoor coil, an indoor coil and the like of the air conditioner in advance. Therefore, the current operation state of the air conditioner can be determined through the monitored temperature parameters related to the operation of the air conditioner and the operation frequency of the air conditioner, so that data support is provided for the subsequent control of the air conditioner.
S102, in response to the fact that the air conditioner is determined to be in the low-frequency operation state, whether defrosting of the air conditioner is started or not is determined according to the temperature parameter and the first defrosting starting judgment condition corresponding to the low-frequency operation state.
The low-frequency operation state is a state in which the duration of the operation frequency lower than the preset operation frequency threshold reaches the preset low-frequency operation duration.
For example, the operation frequency threshold may be set in advance, for example, if the operation frequency of the air conditioner is 10Hz to 100Hz, the operation frequency threshold may be set to 75Hz; the preset low frequency operation time period may be set to 90min. If the duration of the operation frequency of the air conditioner being lower than 75Hz reaches 90min, the long-term low-frequency operation of the air conditioner can be determined, namely the air conditioner can be determined to be in a low-frequency operation state. If the temperature parameter meets the corresponding first defrosting start judgment condition in the low-frequency running state, the air conditioner can be determined to be started for defrosting; and if the temperature parameter does not meet the corresponding first defrosting starting judgment condition in the low-frequency running state, determining not to start the air conditioner for defrosting. When the air conditioner runs for a long time at a low frequency, whether the air conditioner frosts or not can be determined by combining with the temperature parameter related to the running of the air conditioner, and then whether the air conditioner is started to defrost or not can be determined. So, can be in the mode of heating at the air conditioner, and under the condition of long-term low frequency operation, when the air conditioner frosts, accurately, open the air conditioner in time and defrost to avoid influencing the effect of heating of air conditioner, and then improve user's use and experience.
Through the technical scheme, under the condition that the air conditioner is in the heating mode, the current operation state of the air conditioner can be determined through the monitored temperature parameters related to the operation of the air conditioner and the operation frequency of the air conditioner. If the air conditioner is determined to be in the low-frequency operation state, whether the air conditioner is started for defrosting is determined according to the temperature parameter and the corresponding first defrosting starting judgment condition in the low-frequency operation state, namely whether the air conditioner is frosted or not can be determined by combining the temperature parameter related to the operation of the air conditioner when the air conditioner operates at the low frequency for a long time, and then whether the air conditioner is started for defrosting can be determined. So, can be in the mode of heating at the air conditioner, and under the condition of long-term low frequency operation, when the air conditioner frosts, accurately, open the air conditioner in time and defrost to avoid influencing the effect of heating of air conditioner, and then improve user's use and experience.
Alternatively, the temperature parameters may include outdoor coil temperature, exhaust temperature, and outdoor ambient temperature; the first defrosting start judgment condition may include:
the duration that the temperature of the outdoor coil pipe is not more than the defrosting temperature threshold corresponding to the outdoor environment temperature reaches a first preset duration, and the maximum difference value of the exhaust temperature in a second preset duration from the current moment to the front is not less than the exhaust temperature difference threshold corresponding to the outdoor environment temperature.
For example, the outdoor ambient temperature may be acquired by a temperature sensor disposed outdoors; a temperature sensor can be arranged on a position, which is a certain distance away from an exhaust port, on an exhaust pipe of a compressor of the air conditioner so as to obtain the exhaust temperature; the outdoor coil temperature may be obtained by a temperature sensor disposed on the outdoor coil.
Specifically, the duration that the outdoor coil temperature is not greater than the defrosting temperature threshold corresponding to the outdoor ambient temperature reaches a first preset duration may include:
the outdoor environment temperature is greater than or equal to a first temperature threshold, and the duration that the outdoor coil temperature is not greater than the first defrosting temperature threshold reaches a first preset duration; alternatively, the first and second electrodes may be,
the outdoor environment temperature is greater than or equal to a second temperature threshold and smaller than a first temperature threshold, and the duration that the outdoor coil temperature is not greater than the second defrosting temperature threshold reaches a first preset duration; alternatively, the first and second electrodes may be,
the outdoor environment temperature is greater than or equal to a third temperature threshold and less than a second temperature threshold, and the duration that the outdoor coil temperature is not greater than the third defrosting temperature threshold reaches a first preset duration; alternatively, the first and second electrodes may be,
and the duration that the outdoor environment temperature is less than the third temperature threshold and the outdoor coil temperature is not more than the fourth defrosting temperature threshold reaches a first preset duration.
Wherein, the defrosting temperature threshold value and the outdoor environment temperature are in positive correlation variation relation.
For example, the first preset time period may be preset, for example, may be set to 3min. The first temperature threshold may be preset to 0 ℃; the second temperature threshold may be preset to-5 deg.c and the third temperature threshold may be preset to-10 deg.c. The first defrosting temperature threshold may be preset to-4.5 deg.c, the second defrosting temperature threshold may be preset to-6 deg.c, the third defrosting temperature threshold may be preset to-10 deg.c, and the fourth defrosting temperature threshold may be preset to-13 deg.c. If the duration of the outdoor coil temperature not greater than the defrosting temperature threshold corresponding to the outdoor environment temperature reaches a first preset duration, the air conditioner can be determined to be in a stable running state at present, and therefore the air conditioner can be prevented from being started to defrost mistakenly.
Specifically, the maximum difference of the exhaust temperature in the second preset time period before from the current time is not less than the exhaust temperature difference threshold corresponding to the outdoor environment temperature, and may include:
the outdoor environment temperature is greater than or equal to a first temperature threshold, and the maximum difference value of the exhaust temperature in a second preset time before the current moment is not less than a first exhaust temperature difference threshold; alternatively, the first and second liquid crystal display panels may be,
the outdoor environment temperature is greater than or equal to a second temperature threshold and smaller than a first temperature threshold, and the maximum difference value of the exhaust temperature in a second preset time before the current moment is not smaller than a second exhaust temperature difference threshold; alternatively, the first and second liquid crystal display panels may be,
the outdoor environment temperature is greater than or equal to a third temperature threshold and less than a second temperature threshold, and the maximum difference value of the exhaust temperature in a second preset time before the current moment is not less than the third exhaust temperature difference threshold; alternatively, the first and second electrodes may be,
the outdoor environment temperature is smaller than a third temperature threshold, and the maximum difference value of the exhaust temperature in a second preset time period before the current moment is not smaller than a fourth exhaust temperature difference threshold.
The first exhaust temperature difference threshold value is not smaller than the second exhaust temperature difference threshold value, the second exhaust temperature difference threshold value is not smaller than the third exhaust temperature difference threshold value, and the third exhaust temperature difference threshold value is not smaller than the fourth exhaust temperature difference threshold value.
For example, a first exhaust gas temperature difference threshold may be preset to 5 ℃, a second exhaust gas temperature difference threshold may be preset to 4 ℃, a third exhaust gas temperature difference threshold may be preset to 4 ℃, and a fourth exhaust gas temperature difference threshold may be preset to 3 ℃. The second preset time period may be set to 10min. If the air conditioner is in a low-frequency operation state and the current time is 60min when the operation frequency of the air conditioner is lower than a preset operation frequency threshold value, determining the maximum difference value of the exhaust temperature from 50min to 60 min; if the current time is 61min when the air conditioner operation frequency is lower than the preset operation frequency threshold value, the maximum difference value of the exhaust temperature from 51min to 61min can be determined. Therefore, the maximum variation amplitude of the exhaust temperature in a certain time period can be determined by determining the maximum difference of the exhaust temperature in the second preset time period from the current time to the previous time, so as to reflect the attenuation condition of the exhaust temperature of the air conditioner after the air conditioner stably operates at a low frequency for a period of time.
Therefore, whether the air conditioner is likely to frost or not can be determined through the maximum difference value between the temperature of the outdoor coil and the exhaust temperature in the second preset time from the current moment to the previous moment. When the duration time that the temperature of the outdoor coil pipe is lower than the defrosting temperature threshold value corresponding to the outdoor environment temperature reaches a first preset time length and the maximum difference value of the exhaust temperature in a second preset time length from the current moment to the front is not smaller than the exhaust temperature difference threshold value corresponding to the outdoor environment temperature, the frosting condition of the air conditioner can be determined, and then the defrosting of the air conditioner can be started, so that the defrosting of the air conditioner can be started accurately and timely when the air conditioner is in a heating mode and runs for a long time at low frequency, and the defrosting of the air conditioner is started when the air conditioner is frosted, so that the heating effect of the air conditioner is prevented from being influenced, and the use experience of a user is improved.
Further, if the outdoor ambient temperature is less than the first temperature threshold, the first defrosting start determining condition may further include:
the duration that the difference value of the outdoor environment temperature relative to the outdoor coil temperature is not less than the defrosting temperature difference threshold corresponding to the outdoor environment temperature reaches a first preset duration.
Specifically, the duration that the difference between the outdoor environment temperature and the outdoor coil temperature is not less than the defrosting temperature difference threshold corresponding to the outdoor environment temperature reaches a first preset duration may include:
the outdoor environment temperature is greater than or equal to a second temperature threshold and less than a first temperature threshold, and the duration of the difference between the outdoor environment temperature and the outdoor coil temperature, which is not less than the first defrosting temperature difference threshold, reaches a first preset duration; alternatively, the first and second electrodes may be,
the outdoor environment temperature is greater than or equal to a third temperature threshold and less than a second temperature threshold, and the duration of the difference value of the outdoor environment temperature relative to the outdoor coil temperature is not less than the second defrosting temperature difference threshold reaches a first preset duration; alternatively, the first and second liquid crystal display panels may be,
and the duration of the outdoor environment temperature being less than the third temperature threshold value and the difference value of the outdoor environment temperature relative to the outdoor coil temperature being not less than the third defrosting temperature difference threshold value reaches a first preset duration.
For example, the first frost temperature difference threshold may be preset to 5 ℃, the second frost temperature difference threshold may be preset to 6 ℃, and the third frost temperature difference threshold may be preset to 5.3 ℃.
Therefore, whether the air conditioner frosts can be further accurately judged by setting the defrosting temperature difference threshold value, so that the accuracy of starting the air conditioner for defrosting is ensured.
In combination with the foregoing, in an embodiment, when it is determined that the air conditioner is in the low-frequency operation state, the meeting of the first defrosting start judgment condition may specifically include:
when the air conditioner is determined to be in a low-frequency operation state, if the outdoor environment temperature is more than or equal to 0 ℃ (a first temperature threshold), the duration time of the outdoor coil temperature which is less than or equal to-4.5 ℃ (a first defrosting temperature threshold) reaches 3min (a first preset time), and the maximum difference value of the exhaust temperature in 10min (a second preset time) from the current time is more than or equal to 5 ℃ (a first exhaust temperature difference threshold), the first defrosting starting judgment condition can be determined to be met; alternatively, the first and second electrodes may be,
when the air conditioner is determined to be in a low-frequency operation state, if the outdoor environment temperature is less than or equal to-5 ℃ (the second temperature threshold) and less than 0 ℃, the duration of the outdoor coil temperature is less than or equal to-6 ℃ (the second defrosting temperature threshold) reaches 3min, the maximum difference of the exhaust temperatures in 10min before the current moment is more than or equal to 4 ℃ (the second exhaust temperature difference threshold), and the duration of the outdoor environment temperature and the outdoor coil temperature is more than or equal to 5 ℃ (the first defrosting temperature difference threshold) reaches 3min, then the first defrosting starting judgment condition can be determined to be met; alternatively, the first and second electrodes may be,
when the air conditioner is determined to be in a low-frequency operation state, if the outdoor environment temperature is less than or equal to minus 5 ℃ below zero (a third temperature threshold), the duration of the outdoor coil temperature is less than or equal to minus 10 ℃ (a third defrosting temperature threshold) reaches 3min, the maximum difference of the exhaust temperatures in 10min before from the current moment is more than or equal to 4 ℃ (the third exhaust temperature threshold), and the duration of the outdoor environment temperature and the outdoor coil temperature is more than or equal to 6 ℃ (the second defrosting temperature threshold) reaches 3min, then the first defrosting starting judgment condition can be determined to be met; alternatively, the first and second electrodes may be,
when the air conditioner is determined to be in a low-frequency operation state, if the outdoor environment temperature is less than-10 ℃, the duration of the outdoor coil temperature being less than or equal to-13 ℃ (the fourth defrosting temperature threshold) reaches 3min, the maximum difference of the exhaust temperatures in 10min before the current moment is greater than or equal to 3 ℃ (the fourth exhaust temperature difference threshold), and the duration of the outdoor environment temperature-the outdoor coil temperature being greater than or equal to 5.3 ℃ (the third defrosting temperature difference threshold) reaches 3min, the first defrosting starting judgment condition can be determined to be met.
So, under confirming that the air conditioner is in the low frequency running state, correspond different defrosting temperature threshold value, the temperature difference threshold value of defrosting, exhaust temperature difference threshold value through different outdoor ambient temperature, can so that the first defrosting that sets up opens the judgement condition more accurate, suit with different outdoor ambient temperature to guarantee to open the accuracy that the air conditioner defrosted.
Alternatively, in S102, determining that the air conditioner is in the low-frequency operation state may include:
determining the low-frequency operation time length corresponding to the outdoor environment temperature according to the outdoor environment temperature;
and if the duration that the operating frequency of the air conditioner is lower than the operating frequency threshold reaches the low-frequency operating duration corresponding to the outdoor environment temperature, determining that the air conditioner is in a low-frequency operating state.
Wherein, the low-frequency operation time length and the outdoor environment temperature are in a negative correlation variation relation.
Specifically, the time duration that the operating frequency of the air conditioner is lower than the operating frequency threshold reaches the low-frequency operating time duration corresponding to the outdoor ambient temperature may include:
the outdoor environment temperature is greater than or equal to a first temperature threshold, and the duration of the operation frequency of the air conditioner lower than the operation frequency threshold reaches a first low-frequency operation duration; alternatively, the first and second electrodes may be,
the outdoor environment temperature is greater than or equal to the second temperature threshold and smaller than the first temperature threshold, and the duration that the operating frequency of the air conditioner is lower than the operating frequency threshold reaches the second low-frequency operating duration; alternatively, the first and second electrodes may be,
the outdoor environment temperature is greater than or equal to a third temperature threshold and less than a second temperature threshold, and the duration that the operating frequency of the air conditioner is lower than the operating frequency threshold reaches a third low-frequency operating duration; alternatively, the first and second electrodes may be,
the outdoor environment temperature is less than the third temperature threshold, and the duration that the operating frequency of the air conditioner is less than the operating frequency threshold reaches the fourth low-frequency operating duration.
For example, the first low-frequency operation duration may be preset, and the value range thereof may be 60min to 70min; the second low-frequency operation time length can be preset and can range from 70min to 80min; the third low-frequency operation time length can be preset and can range from 80min to 90min; the fourth low-frequency operation time length may be preset, and a value range thereof may be 90min to 100min.
So, it is long when corresponding different low frequency operation through different outdoor ambient temperature, can make the judgement condition of judging whether the air conditioner is in the low frequency running state suit with different outdoor ambient temperature to make the judgement condition of judging whether the air conditioner is in the low frequency running state more accurate, and then can ensure that the air conditioner opens the accuracy of defrosting.
In combination with the above, in an embodiment, the condition of determining whether to turn on defrosting of the air conditioner may include:
if the outdoor environment temperature is more than or equal to 0 ℃ (the first temperature threshold), the duration that the operating frequency of the air conditioner is lower than the operating frequency threshold reaches 65min (the first low-frequency operating duration), the duration that the outdoor coil temperature is less than or equal to minus 4.5 ℃ (the first defrosting temperature threshold) reaches 3min (the first preset duration), and the maximum difference value of the exhaust temperature in 10min (the second preset duration) from the current moment is more than or equal to 5 ℃ (the first exhaust temperature difference threshold); alternatively, the first and second electrodes may be,
if the temperature is less than or equal to-5 ℃ (the second temperature threshold) and less than or equal to the outdoor environment temperature and less than 0 ℃, the duration of the operating frequency of the air conditioner which is less than the operating frequency threshold reaches 75min (the second low-frequency operating duration), the duration of the outdoor coil temperature which is less than or equal to-6 ℃ (the second defrosting temperature threshold) reaches 3min, the maximum difference of the exhaust temperature in 10min before the current moment is more than or equal to 4 ℃ (the second exhaust temperature difference threshold), and the duration of the outdoor environment temperature-the outdoor coil temperature which is more than or equal to 5 ℃ (the first defrosting temperature difference threshold) reaches 3min; alternatively, the first and second electrodes may be,
if the temperature is less than or equal to minus 10 ℃ (third temperature threshold) and less than or equal to minus 5 ℃, the duration of the operating frequency of the air conditioner which is lower than the operating frequency threshold reaches 85min (third low-frequency operating duration), the duration of the outdoor coil temperature which is less than or equal to minus 10 ℃ (third defrosting temperature threshold) reaches 3min, the maximum difference of the exhaust temperature in 10min before the current moment is more than or equal to 4 ℃ (third exhaust temperature difference threshold), and the duration of the outdoor environment temperature which is more than or equal to 6 ℃ (second defrosting temperature difference threshold) reaches 3min; alternatively, the first and second electrodes may be,
if the outdoor environment temperature is less than-10 ℃, the duration that the operating frequency of the air conditioner is lower than the operating frequency threshold reaches 95min (the fourth low-frequency operating duration), the duration that the outdoor coil temperature is less than or equal to-13 ℃ (the fourth defrosting temperature threshold) reaches 3min, the maximum difference of the exhaust temperature in 10min before from the current moment is more than or equal to 3 ℃ (the fourth exhaust temperature difference threshold), and the duration that the outdoor environment temperature-the outdoor coil temperature is more than or equal to 5.3 ℃ (the third defrosting temperature difference threshold) reaches 3min.
So, it is long, change the frost temperature threshold value, change the frost difference in temperature threshold value, exhaust difference in temperature threshold value to correspond different low frequency operation through different outdoor ambient temperature for judge whether the air conditioner is in the judgement condition of low frequency running state, the first frost of setting open the judgement condition more accurate, suit with different outdoor ambient temperature, and then can ensure to open the accuracy that the air conditioner changes the frost.
Optionally, the temperature parameters may also include an indoor ambient temperature and an indoor coil temperature; the first defrosting start judgment condition may further include:
the maximum difference value of the temperature of the indoor coil pipe in the second preset time period from the current moment to the previous moment is not larger than the indoor coil pipe temperature difference threshold value corresponding to the indoor environment temperature.
For example, the indoor ambient temperature may be acquired by a temperature sensor preset in the room, and the indoor coil temperature may be acquired by a temperature sensor preset on the indoor coil.
Specifically, the maximum difference value of the indoor coil temperature for a second preset time period from the current time onward may be not greater than the indoor coil temperature difference threshold value corresponding to the indoor environment temperature, and may include:
the indoor environment temperature is greater than a fourth temperature threshold, and the maximum difference value of the temperatures of the indoor coils in a second preset time period from the current moment to the previous moment is not greater than a first indoor coil temperature difference threshold; alternatively, the first and second liquid crystal display panels may be,
the indoor environment temperature is smaller than the fourth temperature threshold and larger than or equal to the fifth temperature threshold, and the maximum difference value of the temperature of the indoor coil pipe in a second preset time before the current moment is not larger than a second indoor coil pipe temperature difference threshold; alternatively, the first and second liquid crystal display panels may be,
the indoor environment temperature is smaller than the fifth temperature threshold and is larger than or equal to the sixth temperature threshold, and the maximum difference value of the temperature of the indoor coil pipe in the second preset time from the current moment to the previous moment is not larger than the temperature difference threshold of the third indoor coil pipe; alternatively, the first and second liquid crystal display panels may be,
the indoor environment temperature is smaller than a sixth temperature threshold, and the maximum difference value of the temperatures of the indoor coils in a second preset time period from the current moment to the previous moment is not larger than a fourth indoor coil temperature difference threshold.
Wherein, the indoor coil pipe temperature difference threshold value and the indoor environment temperature are in a positive correlation change relationship.
For example, the fourth temperature threshold may be preset to 20 ℃, the fifth temperature threshold may be preset to 15 ℃, and the sixth temperature threshold may be preset to 10 ℃. Wherein the fourth temperature threshold is greater than the fifth temperature threshold, the fifth temperature threshold is greater than the sixth temperature threshold, and the airflow temperature threshold is greater than the first temperature threshold. The first indoor coil temperature differential threshold may be preset to 3 deg.c, the first indoor coil temperature differential threshold may be preset to 2 deg.c, the first indoor coil temperature differential threshold may be preset to 1.5 deg.c, and the fourth indoor coil temperature differential threshold may be preset to 1 deg.c.
So, on the basis that different outdoor ambient temperature corresponds different defrosting temperature threshold, the difference in temperature threshold of defrosting, exhaust difference in temperature threshold, further combine the different indoor coil pipe difference in temperature threshold that different indoor ambient temperature corresponds, can make the first defrosting that sets up open the judgement condition more accurate, suit with different outdoor ambient temperature, indoor ambient temperature to ensure to open the accuracy that the air conditioner defrosted.
Optionally, the air conditioner defrosting control method provided by the present disclosure may further include:
and responding to the condition that the air conditioner is not in the low-frequency running state, and determining whether to start defrosting of the air conditioner according to the temperature parameter and a second defrosting starting judgment condition corresponding to the conventional running state.
If the temperature parameter meets a second defrosting starting judgment condition corresponding to the conventional running state, starting air conditioner defrosting can be determined; and if the temperature parameter does not meet the corresponding second defrosting starting judgment condition in the conventional running state, determining not to start the air conditioner for defrosting. The second frost start judgment condition may include:
the outdoor environment temperature is greater than or equal to a first temperature threshold, and the duration that the outdoor coil temperature is not greater than a fifth defrosting temperature threshold reaches a first preset duration; alternatively, the first and second electrodes may be,
the outdoor environment temperature is greater than or equal to the second temperature threshold and less than the first temperature threshold, the duration that the outdoor coil temperature is not greater than the sixth defrosting temperature threshold reaches a first preset duration, and the duration that the difference value of the outdoor environment temperature relative to the outdoor coil temperature is not less than the fourth defrosting temperature difference threshold reaches the first preset duration; alternatively, the first and second electrodes may be,
the outdoor environment temperature is greater than or equal to a third temperature threshold and less than a second temperature threshold, the duration that the outdoor coil temperature is not greater than a seventh defrosting temperature threshold reaches a first preset duration, and the duration that the difference value of the outdoor environment temperature relative to the outdoor coil temperature is not less than a fifth defrosting temperature difference threshold reaches the first preset duration; alternatively, the first and second electrodes may be,
the outdoor environment temperature is smaller than a third temperature threshold, the duration that the outdoor coil temperature is not larger than an eighth defrosting temperature threshold reaches a first preset duration, and the duration that the difference value of the outdoor environment temperature relative to the outdoor coil temperature is not smaller than a sixth defrosting temperature difference threshold reaches the first preset duration.
For example, a fifth defrosting temperature threshold may be preset to-6 deg.C, a sixth defrosting temperature threshold may be preset to-7 deg.C, a seventh defrosting temperature threshold may be preset to-13 deg.C, and an eighth defrosting temperature threshold may be preset to-15 deg.C. The fourth defrosting temperature difference threshold may be preset to 6 deg.c, the fifth defrosting temperature difference threshold may be preset to 7 deg.c, and the sixth defrosting temperature difference threshold may be preset to 6 deg.c. So, correspond different defrosting temperature threshold, the temperature difference threshold of defrosting through different outdoor ambient temperature, can make the second defrosting that sets up open the judgement condition more accurate, suit with different outdoor ambient temperature to ensure to open the accuracy that the air conditioner defrosted.
When the operating frequency of the air conditioner is in a low frequency for a long time, the heating capacity of the air conditioner is low, the temperature of the indoor coil is relatively low under a normal condition, and the temperature of the outdoor coil is relatively high, so that the defrosting temperature threshold value corresponding to the same outdoor environment temperature in the first defrosting starting judgment condition is smaller than the defrosting temperature threshold value corresponding to the same outdoor environment temperature in the second defrosting starting judgment condition; and/or the defrosting temperature difference threshold corresponding to the same outdoor environment temperature in the first defrosting starting judgment condition is smaller than the defrosting temperature difference threshold corresponding to the same outdoor environment temperature in the second defrosting starting judgment condition. So, can be so that the air conditioner when being in conventional running state or being in the low frequency running state, the homoenergetic is accurate, in time opens the air conditioner and changes the frost to avoid influencing the air conditioner effect of heating, and then improve user's use and experience.
Specifically, when the outdoor environment temperature is greater than or equal to the first temperature threshold, the first defrosting temperature threshold corresponding to the first defrosting start-up determining condition may be smaller than the fifth defrosting temperature threshold corresponding to the second defrosting start-up determining condition; when the outdoor environment temperature is greater than or equal to the second temperature threshold and less than the first temperature threshold, the corresponding second defrosting temperature threshold in the first defrosting start judgment condition may be smaller than the corresponding sixth defrosting temperature threshold in the second defrosting start judgment condition; when the outdoor environment temperature is greater than or equal to the third temperature threshold and less than the second temperature threshold, the third defrosting temperature threshold corresponding to the first defrosting start judgment condition may be smaller than the seventh defrosting temperature threshold corresponding to the second defrosting start judgment condition; when the outdoor environment temperature is lower than the third temperature threshold, the fourth defrosting temperature threshold corresponding to the first defrosting start judgment condition may be lower than the eighth defrosting temperature threshold corresponding to the second defrosting start judgment condition.
When the outdoor environment temperature is greater than or equal to the second temperature threshold and less than the first temperature threshold, the corresponding first defrosting temperature difference threshold in the first defrosting start judging condition can be less than the corresponding fourth defrosting temperature difference threshold in the second defrosting start judging condition; when the outdoor environment temperature is greater than or equal to the third temperature threshold and less than the second temperature threshold, the second defrosting temperature difference threshold corresponding to the first defrosting start-up judging condition may be less than the fifth defrosting temperature difference threshold corresponding to the second defrosting start-up judging condition; when the outdoor environment temperature is lower than the third temperature threshold, the third defrosting temperature difference threshold corresponding to the first defrosting starting judgment condition may be smaller than the sixth defrosting temperature difference threshold corresponding to the second defrosting starting judgment condition.
For example, the fifth defrosting temperature threshold, the sixth defrosting temperature threshold, the seventh defrosting temperature threshold, the eighth defrosting temperature threshold, the fourth defrosting temperature difference threshold, the fifth defrosting temperature difference threshold and the sixth defrosting temperature difference threshold may be calibrated in advance through related tests under the normal operation state, and a damping coefficient corresponding to the outdoor environment temperature may be calibrated in advance, wherein the damping coefficient is less than 1.
For example, when the outdoor environment temperature is greater than or equal to the first temperature threshold, it may be determined that the corresponding attenuation coefficient is a1, and a1 may have a value ranging from 0.7 to 0.8; when the outdoor environment temperature is greater than or equal to the second temperature threshold and less than the first temperature threshold, determining that the corresponding attenuation coefficient is a2, and the value range of a2 can be 0.8 to 0.9; when the outdoor environment temperature is greater than or equal to the third temperature threshold and less than the second temperature threshold, determining that the corresponding attenuation coefficient is a3, and the value range of a3 can be 0.8 to 0.9; when the outdoor environment temperature is smaller than the third temperature threshold, it may be determined that the corresponding attenuation coefficient is a4, and a numeric area of a4 may be 0.85 to 0.9.
The product of the defrosting temperature threshold value corresponding to the outdoor environment temperature and the attenuation coefficient in the second defrosting start judgment condition can be determined as the defrosting temperature threshold value corresponding to the same outdoor environment temperature in the first defrosting start judgment condition; and/or determining the product of the defrosting temperature difference threshold value corresponding to the outdoor environment temperature and the attenuation coefficient in the second defrosting start judging condition as the defrosting temperature difference threshold value corresponding to the same outdoor environment temperature in the first defrosting start judging condition.
For example, if the fifth defrosting temperature threshold is t5, the value of the first defrosting temperature threshold t1 may be determined as t5 × a1; if the sixth defrosting temperature threshold is t6, the value of the second defrosting temperature threshold t2 can be determined as t6 × a2; if the seventh defrosting temperature threshold is t7, the value of the third defrosting temperature threshold t3 can be determined as t7 × a3; if the eighth defrosting temperature threshold is t8, the value of the fourth defrosting temperature threshold t4 may be determined as t8 × a4. If the temperature difference threshold of the fourth defrosting is t D-value4 Then the first frost temperature difference threshold t can be set D-value1 Is determined as t D-value4 * a2; if the temperature difference threshold value of the fifth defrosting is t D-value5 Then the second frost temperature difference threshold t can be set D-value2 Is determined as t D-value5 * a3; if the temperature difference threshold value of the sixth defrosting is t D-value3 Then the temperature difference threshold t of the third defrosting can be set D-value3 Is determined as t D-value6 *a4。
Based on the same invention concept, the invention also provides an air conditioner defrosting control device. Fig. 2 is a block diagram of an air conditioner defrosting control device 200 according to an exemplary embodiment of the present disclosure. Referring to fig. 2, the air conditioning defrosting control apparatus 200 may include:
a monitoring module 201, configured to monitor a temperature parameter related to operation of the air conditioner and an operation frequency of the air conditioner when the air conditioner is in a heating mode;
the first determining module 202 is configured to determine whether to turn on defrosting of the air conditioner according to the temperature parameter and a corresponding defrosting start judgment condition in the low-frequency operating state in response to determining that the air conditioner is in the low-frequency operating state, where the low-frequency operating state is a state in which a duration of the operating frequency being lower than a preset operating frequency threshold reaches a preset low-frequency operating duration.
Through the technical scheme, under the condition that the air conditioner is in the heating mode, the current operation state of the air conditioner can be determined through the monitored temperature parameters related to the operation of the air conditioner and the operation frequency of the air conditioner. If the air conditioner is determined to be in the low-frequency running state, whether the air conditioner is started for defrosting is determined according to the temperature parameter and the first defrosting starting judgment condition corresponding to the low-frequency running state, namely whether the air conditioner is frosted or not can be determined by combining the temperature parameter related to the running of the air conditioner when the air conditioner runs for a long time at the low frequency, and then whether the air conditioner is started for defrosting can be determined. So, can be in the mode of heating at the air conditioner, and under the condition of long-term low frequency operation, when the air conditioner frosts, accurately, open the air conditioner in time and defrost to avoid influencing the effect of heating of air conditioner, and then improve user's use and experience.
Optionally, the temperature parameters include outdoor coil temperature, exhaust temperature, and outdoor ambient temperature; the first defrosting start judgment condition comprises the following steps:
the duration of the defrosting temperature threshold corresponding to the outdoor environment temperature is not longer than the first preset duration, and the maximum difference value of the exhaust temperature is not less than the exhaust temperature difference threshold corresponding to the outdoor environment temperature in the previous second preset duration from the current moment.
Optionally, if the outdoor ambient temperature is less than a first temperature threshold, the first defrosting start determining condition further includes:
the difference value of the outdoor environment temperature relative to the outdoor coil temperature is not less than the defrosting temperature difference threshold corresponding to the outdoor environment temperature, and the duration of the defrosting temperature difference threshold reaches the first preset duration.
Optionally, the defrosting temperature threshold and the outdoor environment temperature are in a positive correlation variation relationship.
Optionally, the first determining module 202 includes:
the first determining submodule is used for determining low-frequency operation duration corresponding to the outdoor environment temperature according to the outdoor environment temperature;
and the second determining submodule is used for determining that the air conditioner is in the low-frequency operation state if the duration of the operation frequency of the air conditioner lower than the operation frequency threshold reaches the low-frequency operation duration corresponding to the outdoor environment temperature.
Optionally, the low-frequency operation time length and the outdoor environment temperature are in a negative correlation variation relationship.
Optionally, the temperature parameters further include an indoor ambient temperature and an indoor coil temperature; the first defrosting start judgment condition further includes:
and the maximum difference value of the indoor coil temperature in the second preset time period from the current moment onward is not greater than the indoor coil temperature difference threshold corresponding to the indoor environment temperature.
Optionally, the indoor coil temperature difference threshold value and the indoor ambient temperature are in a positive correlation variation relationship.
Optionally, the apparatus 200 further comprises:
and the second determining module is used for responding to the determination that the air conditioner is not in the low-frequency running state, and determining whether to start defrosting of the air conditioner according to the temperature parameter and a corresponding second defrosting start judgment condition in a conventional running state.
The defrosting temperature threshold corresponding to the same outdoor environment temperature in the first defrosting start judging condition is smaller than the defrosting temperature threshold corresponding to the same outdoor environment temperature in the second defrosting start judging condition; and/or the corresponding defrosting temperature difference threshold value of the same outdoor environment temperature in the first defrosting start judging condition is smaller than the corresponding defrosting temperature difference threshold value in the second defrosting start judging condition.
With regard to the apparatus in the above embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be described in detail here.
The present disclosure also provides a computer-readable storage medium having stored thereon computer program instructions, which, when executed by a processor, implement the steps of the air conditioner defrosting control method provided by the present disclosure.
Fig. 3 is a block diagram of an air conditioner 800 shown according to an exemplary embodiment. Referring to fig. 3, the air conditioner 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output interface 812, a sensor component 814, and a communications component 816.
The processing component 802 generally controls the overall operation of the air conditioner 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or some of the steps of the air conditioning defrost control method described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operations at the air conditioner 800. Examples of such data include instructions for any application or method operating on air conditioner 800. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power supply assembly 806 provides power to the various components of the air conditioner 800. Power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for air conditioner 800.
The multimedia component 808 includes a screen providing an output interface between the air conditioner 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
The audio component 810 is configured to output and/or input audio signals. For example, audio component 810 includes a Microphone (MIC) configured to receive external audio signals when air conditioner 800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The input/output interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 814 includes one or more sensors for providing various aspects of state estimation for the air conditioner 800. For example, the sensor assembly 814 may detect the on/off state of the air conditioner 800, the relative positioning of the components, such as a display and keypad of the air conditioner 800, the sensor assembly 814 may also detect a change in the position of the air conditioner 800 or a component of the air conditioner 800, the presence or absence of user contact with the air conditioner 800, the orientation or acceleration/deceleration of the air conditioner 800, and a change in the temperature of the air conditioner 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate wired or wireless communication between the air conditioner 800 and other devices. The air conditioner 800 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the air conditioner 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described air conditioner defrosting control method.
In an exemplary embodiment, a non-transitory computer readable storage medium including instructions, such as the memory 804 including instructions, executable by the processor 820 of the air conditioner 800 to perform the air conditioning defrost control method described above is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
In another exemplary embodiment, a computer program product is also provided, which includes a computer program executable by a programmable apparatus, the computer program having code portions for performing the air conditioning defrosting control method described above when executed by the programmable apparatus.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (13)
1. An air conditioner defrosting control method is characterized by comprising the following steps:
monitoring a temperature parameter related to the operation of the air conditioner and an operation frequency of the air conditioner under the condition that the air conditioner is in a heating mode;
and responding to the condition that the air conditioner is in a low-frequency running state, and determining whether the air conditioner is started to defrost according to the temperature parameter and a corresponding first defrosting starting judgment condition in the low-frequency running state, wherein the low-frequency running state is a state that the duration of the running frequency lower than a preset running frequency threshold reaches a preset low-frequency running duration.
2. The method of claim 1, wherein the temperature parameters include an outdoor coil temperature, a discharge air temperature, and an outdoor ambient temperature; the first defrosting start judgment condition comprises the following steps:
the duration of the defrosting temperature threshold corresponding to the outdoor environment temperature is not longer than the first preset duration, and the maximum difference value of the exhaust temperature is not less than the exhaust temperature difference threshold corresponding to the outdoor environment temperature in the previous second preset duration from the current moment.
3. The method according to claim 2, wherein if the outdoor ambient temperature is less than a first temperature threshold, the first defrosting start-up determining condition further comprises:
the difference value of the outdoor environment temperature relative to the outdoor coil temperature is not less than the defrosting temperature difference threshold corresponding to the outdoor environment temperature, and the duration of the defrosting temperature difference threshold reaches the first preset duration.
4. The method of claim 2, wherein the defrosting temperature threshold is positively correlated with the outdoor ambient temperature.
5. The method of claim 2, wherein the determining that the air conditioner is in a low frequency operating state comprises:
determining the low-frequency operation time length corresponding to the outdoor environment temperature according to the outdoor environment temperature;
and if the duration that the operating frequency of the air conditioner is lower than the operating frequency threshold reaches the low-frequency operating duration corresponding to the outdoor environment temperature, determining that the air conditioner is in the low-frequency operating state.
6. The method of claim 5, wherein the low frequency operating time duration is inversely related to the outdoor ambient temperature.
7. The method of claim 2, wherein the temperature parameters further include an indoor ambient temperature and an indoor coil temperature; the first defrosting start judgment condition further includes:
and the maximum difference value of the indoor coil temperature in the second preset time period from the current moment onward is not greater than the indoor coil temperature difference threshold corresponding to the indoor environment temperature.
8. The method of claim 7, wherein the indoor coil temperature differential threshold varies positively with respect to the indoor ambient temperature.
9. The method according to any one of claims 1-8, further comprising:
and responding to the condition that the air conditioner is not in the low-frequency running state, and determining whether to start defrosting of the air conditioner according to the temperature parameter and a second defrosting start judgment condition corresponding to the conventional running state.
10. The method according to claim 9, wherein a defrosting temperature threshold corresponding to the same outdoor ambient temperature in the first defrosting start judging condition is smaller than a defrosting temperature threshold corresponding to the same outdoor ambient temperature in the second defrosting start judging condition; and/or the defrosting temperature difference threshold corresponding to the same outdoor environment temperature in the first defrosting start judging condition is smaller than the defrosting temperature difference threshold corresponding to the same outdoor environment temperature in the second defrosting start judging condition.
11. An air conditioner defrosting control device is characterized by comprising:
the monitoring module is used for monitoring temperature parameters related to the operation of the air conditioner and the operation frequency of the air conditioner under the condition that the air conditioner is in a heating mode;
the first determining module is used for responding to the determination that the air conditioner is in a low-frequency running state, and determining whether to start defrosting of the air conditioner according to the temperature parameter and a corresponding defrosting starting judgment condition in the low-frequency running state, wherein the low-frequency running state is a state that the duration of the running frequency lower than a preset running frequency threshold reaches a preset low-frequency running duration.
12. An air conditioner, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the method of any one of claims 1-10.
13. A computer-readable storage medium, on which computer program instructions are stored, which program instructions, when executed by a processor, carry out the steps of the method according to any one of claims 1 to 10.
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