CN116817407A - Variable frequency air conditioner control method and device, variable frequency air conditioner and storage medium - Google Patents
Variable frequency air conditioner control method and device, variable frequency air conditioner and storage medium Download PDFInfo
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- CN116817407A CN116817407A CN202310774076.9A CN202310774076A CN116817407A CN 116817407 A CN116817407 A CN 116817407A CN 202310774076 A CN202310774076 A CN 202310774076A CN 116817407 A CN116817407 A CN 116817407A
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000009467 reduction Effects 0.000 claims abstract description 38
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- 230000009471 action Effects 0.000 description 2
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The disclosure relates to a variable frequency air conditioner control method, a variable frequency air conditioner control device, a variable frequency air conditioner and a storage medium, wherein the method comprises the following steps: when the air conditioner performs frequency reduction, acquiring a first indoor environment temperature at the time of frequency reduction; acquiring the temperature of an inner disc of the air conditioner when the second indoor environment temperature and the first indoor environment temperature meet the preset temperature condition corresponding to the working mode; and adjusting the working frequency of the air conditioner according to the temperature of the inner disc. The problem of pipeline loss caused by frequent vibration of the pipeline when the air conditioner is subjected to larger frequency fluctuation can be effectively avoided, and the problem of noise caused by frequency change is reduced, so that the service life of the air conditioner is prolonged, and the user experience is improved.
Description
Technical Field
The disclosure relates to the field of air conditioners, in particular to a variable frequency air conditioner control method and device, a variable frequency air conditioner and a storage medium.
Background
In the working process of the variable frequency air conditioner, operation shielding (frequency hopping) points are generated due to various reasons such as noise, pipeline vibration, stress strain and the like, and the frequency hopping is more in the extreme condition, so that the air conditioner system is unstable in operation and frequent frequency rising and falling can occur. In the working process of the variable-frequency air conditioner, on one hand, frequent frequency rising and falling can cause frequent vibration of an air conditioner pipeline, and the pipeline is possibly broken or accelerated to age, so that the service life of the air conditioner is shortened; on the other hand, when the frequency of the air conditioner is frequently changed, larger noise is generated, and the indoor environment temperature fluctuation is caused to be larger, so that the user experience is affected.
Disclosure of Invention
In order to overcome the problems in the related art, the present disclosure provides a variable frequency air conditioner control method, a variable frequency air conditioner control device, a variable frequency air conditioner and a storage medium.
According to a first aspect of an embodiment of the present disclosure, there is provided a variable frequency air conditioner control method, including:
when the air conditioner performs frequency reduction, acquiring a first indoor environment temperature at the time of frequency reduction;
acquiring the inner disc temperature of the air conditioner when the second indoor environment temperature and the first indoor environment temperature meet the preset temperature condition corresponding to the working mode;
and adjusting the working frequency of the air conditioner according to the temperature of the inner disc.
Optionally, the frequency-reducing time is a time when frequency-reducing occurs, or frequency-reducing to a stable frequency time, and when the air conditioner frequency-reducing occurs, acquiring a first indoor environment temperature at the frequency-reducing time includes:
when the air conditioner performs frequency reduction, acquiring the indoor environment temperature at the time of frequency reduction as the first indoor environment temperature;
or,
and when the air conditioner performs frequency reduction, acquiring the indoor environment temperature reduced to the stable frequency moment as the first indoor environment temperature.
Optionally, when the working mode is a cooling mode or a dehumidifying mode, the preset temperature condition is:
The absolute value of the difference between the second indoor ambient temperature and the first indoor ambient temperature is greater than a first temperature threshold.
Optionally, when the working mode is a cooling mode or a dehumidifying mode, the adjusting the working frequency of the air conditioner according to the temperature of the inner disc includes:
when the temperature of the inner disc is larger than the first frequency limiting temperature, the first frequency limiting temperature is sent to an air conditioner external unit; the first frequency limiting temperature is an anti-freezing inner disc temperature and is used for indicating the air conditioner external unit to adjust the working frequency according to the anti-freezing inner disc temperature so that the second indoor environment temperature reaches the target temperature.
Optionally, when the working mode is a cooling mode or a dehumidifying mode, the adjusting the working frequency of the air conditioner according to the temperature of the inner disc further includes:
and when the temperature of the inner disc is smaller than or equal to the first frequency limiting temperature, sending the temperature of the inner disc to the air conditioner external unit, and indicating the air conditioner external unit to adjust the working frequency according to the temperature of the inner disc so as to enable the temperature of the second indoor environment to reach the target temperature.
Optionally, when the working mode is a heating mode, the preset temperature condition is:
An absolute value of a difference between the second indoor ambient temperature and the first indoor ambient temperature is greater than a second temperature threshold.
Optionally, when the working mode is a heating mode, the adjusting the working frequency of the air conditioner according to the temperature of the inner disc includes:
when the temperature of the inner disc is smaller than the second frequency limiting temperature, the second frequency limiting temperature is sent to an air conditioner external unit; the second frequency limiting temperature is overload prevention inner disc temperature and is used for indicating the air conditioner external unit to adjust working frequency according to the overload prevention inner disc temperature so that the second indoor environment temperature reaches the target temperature.
Optionally, when the working mode is a heating mode, the adjusting the working frequency of the air conditioner according to the temperature of the inner disc further includes:
when the inner disc temperature is greater than or equal to the overload prevention inner disc temperature, the inner disc temperature is sent to the air conditioner external unit, and the air conditioner external unit is used for indicating the air conditioner external unit to adjust the working frequency according to the inner disc temperature so as to enable the second indoor environment temperature to reach the target temperature.
According to a second aspect of the embodiments of the present disclosure, there is provided a variable frequency air conditioner control device, including:
The first acquisition module is configured to acquire a first indoor environment temperature at the time of frequency reduction when the air conditioner frequency reduction occurs;
the second acquisition module is configured to acquire the inner disc temperature of the air conditioner when the second indoor environment temperature and the first indoor environment temperature meet the preset temperature condition corresponding to the working mode;
and the control module is configured to adjust the working frequency of the air conditioner according to the temperature of the inner disc.
According to a third aspect of the embodiments of the present disclosure, there is provided a variable frequency air conditioner, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to: executing the executable instructions to implement the steps of the variable frequency air conditioner control method of any one of the first aspects of the present disclosure.
According to a fourth aspect of 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 variable frequency air conditioner control method provided in the first aspect of the present disclosure.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
in the technical scheme, when the air conditioner performs frequency reduction, acquiring a first indoor environment temperature at the time of frequency reduction; acquiring the temperature of an inner disc of the air conditioner when the second indoor environment temperature and the first indoor environment temperature meet the preset temperature condition corresponding to the working mode; and adjusting the working frequency of the air conditioner according to the temperature of the inner disc. Through the scheme, the problem of pipeline loss caused by frequent vibration of the pipeline when the air conditioner is subjected to larger frequency fluctuation can be effectively avoided, and the problem of noise caused by frequency change is reduced, so that the service life of the air conditioner is prolonged, and the user experience is improved.
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 disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flowchart illustrating a variable frequency air conditioner control method according to an exemplary embodiment.
Fig. 2 is a flowchart illustrating a variable frequency air conditioner control method according to an exemplary embodiment.
Fig. 3 is a flowchart illustrating a variable frequency air conditioner control method according to an exemplary embodiment.
Fig. 4 is a block diagram illustrating a variable frequency air conditioner control device 400 according to an exemplary embodiment.
Fig. 5 is a block diagram illustrating a variable frequency air conditioner 500 according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
It should be noted that, all actions for acquiring signals, information or data in the present disclosure are performed under the condition of conforming to the corresponding data protection rule 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 a variable frequency air conditioner control method according to an exemplary embodiment, as shown in fig. 1, including the following steps.
In step S11, when the air conditioner performs down-conversion, a first indoor environment temperature at the down-conversion time is acquired.
Illustratively, in various embodiments of the present disclosure, the inverter air conditioner includes an indoor unit and an outdoor unit, wherein the inverter air conditioner uses an inverter compressor in combination with an inverter control system, and then automatically provides required cooling/heating according to the use condition of a space. When the indoor temperature reaches the target temperature (the temperature set by the user), the air conditioner external unit operates at a constant frequency for maintaining the target temperature, thereby realizing non-stop operation and ensuring the stability of the using environment temperature.
The frequency change of the variable frequency air conditioner can be increased or decreased according to a certain rate, however, in the working process of the variable frequency air conditioner, the working frequency of the air conditioner external unit suddenly and greatly decreases (namely frequency hopping points are generated) or a plurality of frequency points continuously decrease in a short time due to various reasons such as noise, pipeline vibration and the like, so that the indoor environment temperature is changed and the target temperature is not reached. Therefore, in order to ensure the comfort of a user in the use process, the temperature of the indoor environment is monitored in real time, so that the working frequency of the air conditioner outdoor unit is adjusted, and discomfort caused by the change of the indoor environment temperature due to the change of the frequency can be effectively avoided. When the air conditioner is started, the indoor environment temperature can be detected in real time and can be obtained through the indoor environment temperature sensor of the indoor unit of the air conditioner. For example, the operating frequency range of the variable frequency air conditioner may be 30Hz to 90Hz, and the frequency change rate of the air conditioner is 1Hz/s, that is, the maximum operating frequency of the air conditioner is 90Hz, the minimum operating frequency is 30Hz, the frequency change rate is 1 second to decrease or increase by 1Hz, and 1Hz is referred to as a frequency point. In one possible case, the occurrence of the frequency-reducing may refer to that the frequency-converting air conditioner generates a frequency-hopping point in operation, and if the operating frequency of the air conditioner is 75Hz, at a certain moment, the operating frequency is directly reduced from 75Hz to 65Hz due to the influence of external factors (refer to that 1 second from 75Hz is not reduced by 1Hz to 65 Hz), the frequency-reducing generates 10 shielding (frequency-hopping) points. Or when the frequency change rate of the air conditioner is 2Hz/s, namely 2Hz is called a frequency point, and when the working frequency is directly reduced from 75Hz to 65Hz, 5 shielding (frequency hopping) points are generated by the frequency reduction. It will be appreciated that the rate of change of frequency may be in units of time or may be in units of times, such as 1 Hz/time, etc. In another possible case, the frequency reduction may be that a variable frequency air conditioner continuously drops a plurality of frequency points in a short time during operation, if the operating frequency of the air conditioner is 80Hz, at a certain moment, the operating frequency drops from 80Hz to 74Hz in two seconds due to the influence of external factors (that is, no frequency hopping point is generated, but the frequency drop rate is increased, and the operating frequency of the air conditioner is changed from 1Hz/s to 3 Hz/s). In summary, when the air conditioner performs down-conversion, several shielding (frequency hopping) points are generated, for example, 5 shielding (frequency hopping) points are generated in the working process; it is also possible that the frequency decreases beyond a certain preset value, e.g. during operation the frequency suddenly changes by more than 5Hz.
Alternatively, the step S11 may include:
when the air conditioner performs frequency reduction, acquiring the indoor environment temperature at the time of frequency reduction as the first indoor environment temperature;
or,
and when the air conditioner performs frequency reduction, acquiring the indoor environment temperature reduced to the stable frequency moment as the first indoor environment temperature.
Illustratively, the frequency-down occurs when a shielding (frequency hopping) point is generated during the working process, and when the frequency-down occurs, the first indoor environment temperature may be the indoor environment temperature at the time of the frequency-down, or may be the indoor environment temperature at the time of the frequency-down to the frequency-stable time.
For example, when the frequency reduction occurs, the operating frequency of the air conditioner is reduced from 70Hz to 60Hz, and the indoor environment temperature is changed from 26 ℃ to 24 ℃, the indoor environment temperature at the time when the frequency reduction occurs is the first indoor environment temperature, which is 26 ℃; the first indoor ambient temperature is an indoor ambient temperature that is down-converted to a frequency stabilization time, and the first indoor ambient temperature is 24 ℃.
In step S12, when the second indoor environment temperature and the first indoor environment temperature meet the preset temperature condition corresponding to the working mode, the inner disc temperature of the air conditioner is obtained.
Illustratively, the inner disc temperature refers to an inner fin disc tube temperature of the indoor unit, which may be acquired by a corresponding temperature sensor.
In step S13, the operating frequency of the air conditioner is adjusted according to the temperature of the inner panel.
For example, the indoor unit of the air conditioner may transmit the temperature of the inner disc to the outdoor unit of the air conditioner, and the outdoor unit of the air conditioner may adjust the operating frequency according to the temperature of the inner disc.
In the technical scheme, when the air conditioner performs frequency reduction, acquiring a first indoor environment temperature at the time of frequency reduction; acquiring the temperature of an inner disc of the air conditioner when the second indoor environment temperature and the first indoor environment temperature meet the preset temperature condition corresponding to the working mode; and adjusting the working frequency of the air conditioner according to the temperature of the inner disc. Through the scheme, the problem of pipeline loss caused by frequent vibration of the pipeline when the air conditioner is subjected to larger frequency fluctuation can be effectively avoided, and the problem of noise caused by frequency change is reduced, so that the service life of the air conditioner is prolonged, and the user experience is improved.
Fig. 2 is a flowchart illustrating another variable frequency air conditioner control method according to an exemplary embodiment, as shown in fig. 2, when the operation mode is a cooling mode or a dehumidifying mode, step S13 includes the steps of:
In step S1301, it is determined whether the absolute value of the difference between the second indoor environment temperature and the first indoor environment temperature is greater than a first temperature threshold.
In an exemplary embodiment, when the operation mode of the air conditioner is a cooling mode or a dehumidifying mode, and the frequency is reduced to a frequency stabilization time, the air conditioner is stably operated at the frequency stabilization time, the second indoor environment temperature (indoor environment real-time temperature) is gradually increased along with the change of time, and when the absolute value of the difference between the second indoor environment temperature and the first indoor environment temperature is greater than the first temperature threshold, it is indicated that the change of the indoor environment temperature is greater, and the operation frequency of the outdoor unit of the air conditioner needs to be adjusted.
When the absolute value is greater than the first temperature threshold, step S1302 is performed.
In step S1302, it is determined whether the inner disc temperature is greater than a first frequency-limiting temperature, where the first frequency-limiting temperature is an anti-freezing inner disc temperature.
In an exemplary embodiment, the air conditioner is configured to provide anti-icing protection when the surface temperature of the evaporator of the indoor unit is about 8-12-degrees celsius, and water vapor in the air is condensed into water when the indoor air exchanges heat with the evaporator in a cooling or dehumidifying mode, and icing is caused if the surface temperature of the evaporator is too low. The air conditioner detects the surface temperature of the evaporator through the inner disc temperature sensor, and when the temperature is smaller than a certain value, a protection signal is sent out, and meanwhile, the air conditioner changes the working frequency of an air conditioner external unit.
When the inner disc temperature is greater than the first frequency limit temperature, step S1303 is performed.
In step S1303, the first frequency-limited temperature is transmitted to an air conditioner external unit.
Illustratively, when the inner panel temperature is greater than a first frequency limit temperature (anti-freeze inner panel temperature), the indoor unit transmits the first frequency limit temperature (anti-freeze inner panel temperature) to the air conditioner outdoor unit.
Step S1304 is performed when the absolute value is less than or equal to the first temperature threshold, or when the inner disk temperature is less than or equal to the first frequency limit temperature.
In step S1304, the interior pan temperature is sent to the air conditioner external unit.
The indoor unit transmits the inner disc temperature to the air conditioner outdoor unit, illustratively, when the absolute value is less than or equal to a first temperature threshold, or when the inner disc temperature is less than or equal to a first frequency limit temperature.
In step S1305, the outdoor unit of the air conditioner adjusts the operating frequency according to the first frequency-limiting temperature or the inner disc temperature so that the second indoor environment temperature reaches the target temperature.
For example, when the absolute value is less than or equal to the first temperature threshold, the air conditioner external unit may increase the operating frequency at a preset rate of change according to the inner disc temperature when receiving the inner disc temperature, and may stably operate at the operating frequency when reaching the target temperature after the second indoor environment temperature (real-time temperature of the indoor environment) reaches the target temperature (temperature preset by the user). For example, the frequency change rate of the air conditioner is 1Hz/s, the target temperature is 23 ℃, the inner disc temperature is 10 ℃, the first indoor environment temperature is 25 ℃, the second indoor environment temperature is 26 ℃, the first temperature threshold is 2 ℃, the current working frequency of the air conditioner external unit is 55Hz, at the moment, the absolute value 1 ℃ is smaller than the first temperature threshold 2 ℃, the indoor opportunity sends the inner disc temperature to the air conditioner external unit, when the air conditioner external unit receives the inner disc temperature, the working frequency can rise from 55Hz at the speed of 1Hz/s, so that the second indoor environment temperature is reduced, when the second indoor environment temperature is 23 ℃ (namely equal to the target temperature), the frequency stops rising, and the air conditioner external unit stably operates at the working frequency with the stop rising. It can be understood that the frequency of the variable frequency air conditioner cannot rise limitlessly, and if the maximum value of the operating frequency of the air conditioner is reached during the frequency rising process, the variable frequency air conditioner stably operates at the maximum value.
When the temperature of the inner disc is smaller than or equal to the first frequency limiting temperature (anti-freezing inner disc temperature), when the frequency change rate of the air conditioner is 1Hz/s, the first frequency limiting temperature (anti-freezing inner disc temperature) of the air conditioner is 5 ℃, the current inner disc temperature is 3 ℃, the indoor opportunity sends the inner disc temperature of 3 ℃ to an air conditioner external unit, and when the air conditioner external unit receives the inner disc temperature of 3 ℃, the anti-freezing protection of the air conditioner is triggered, wherein the anti-freezing protection measures can be frequency reduction, frequency limiting or shutdown protection. At this time, when the anti-freezing protection measure is frequency reduction, the working frequency of the air conditioner external unit is reduced at a speed of 1Hz/s from the current working frequency until the temperature of the inner coil pipe is increased to be more than or equal to the first frequency limiting temperature (anti-freezing inner coil temperature); when the anti-freezing protection measures limit the frequency, the working frequency of the air conditioner external unit is reduced from the current working frequency to a stable frequency, and the air conditioner external unit operates at the stable frequency until the temperature of the inner coil pipe rises to be greater than or equal to the first frequency limiting temperature (anti-freezing inner coil temperature); when the anti-freezing protection measure is stop protection, the air conditioner external unit pauses operation until the temperature of the internal coil pipe rises to be greater than or equal to the first frequency limiting temperature (anti-freezing internal coil temperature). In the above three anti-freezing protection measures, when the temperature of the inner coil is greater than or equal to the first frequency limit temperature (anti-freezing inner coil temperature), the above steps 1301 to 1305 are re-executed until the second indoor environment temperature reaches the target temperature, wherein the steps 1301 to 1305 are described in detail in the above embodiments, and are not repeated.
When the temperature of the inner disc is greater than the first frequency limiting temperature (anti-freezing inner disc temperature), the air conditioner external unit adjusts the working frequency according to the first frequency limiting temperature (anti-freezing inner disc temperature), in this case, the absolute value of the difference value between the second indoor environment temperature and the first indoor environment temperature is larger (namely, the change amount of the indoor environment temperature is larger), and the inner disc temperature does not trigger anti-freezing protection, at this time, the external unit can operate according to the working frequency corresponding to the first frequency limiting temperature (anti-freezing inner disc temperature) so as to quickly improve the second indoor environment temperature to reach the target value. The working frequency corresponding to the first frequency limiting temperature (anti-freezing inner disc temperature) can be a larger frequency, so that when the air conditioner external unit operates at a frequency higher than the frequency, the inner disc temperature can be lower than the first frequency limiting temperature (anti-freezing inner disc temperature), and anti-freezing protection of the air conditioner is triggered. For example, when the frequency change rate of the air conditioner is 1Hz/s, the working frequency corresponding to the first frequency limiting temperature (anti-freezing inner disc temperature) is 80Hz, and when the inner disc temperature is higher than the first frequency limiting temperature (anti-freezing inner disc temperature) and the current working frequency of the air conditioner external unit is 66Hz, after the air conditioner external unit receives the first frequency limiting temperature (anti-freezing inner disc temperature), the working frequency is increased at a speed of 1Hz/s until the working frequency reaches 80Hz; alternatively, the working frequency can be directly increased from 66Hz to 80Hz for the air conditioner external unit, or the frequency can be increased from 66Hz to 80Hz by increasing the frequency change rate, such as the frequency change rate can be increased from 1Hz/s to 2Hz/s, so that the time for increasing the frequency from 66Hz to 80Hz can be reduced, wherein the change of the frequency change rate can be calculated according to the inner disc temperature, the first frequency limiting temperature (anti-freezing inner disc temperature) and other related parameters. In summary, when the second indoor environment temperature reaches the target temperature, the operating frequency of the air conditioner external unit may be reduced from 80Hz at a speed of 1Hz/s until the target temperature is stabilized and operated at a constant operating frequency, and it is understood that the first indoor environment temperature may be the same as the target temperature.
Fig. 3 is a flowchart illustrating another variable frequency air conditioner control method according to an exemplary embodiment, as shown in fig. 3, when the operation mode is a heating mode, step S13 includes the following steps:
in step S1306, it is determined whether the absolute value of the difference between the second indoor environment temperature and the first indoor environment temperature is greater than a second temperature threshold.
When the air conditioner is in the heating mode, and the air conditioner is down-converted and down-converted to the frequency stabilization time, the air conditioner is operated stably at the frequency stabilization time, the second indoor environment temperature (indoor environment real-time temperature) is gradually reduced along with the change of time, and when the absolute value of the difference between the second indoor environment temperature and the first indoor environment temperature is larger than the second temperature threshold, the change of the indoor environment temperature is larger, and the operating frequency of the air conditioner external unit needs to be adjusted.
When the absolute value is greater than the second temperature threshold, step S1307 is executed.
In step S1307, it is determined whether the inner disk temperature is less than a second frequency limit temperature, which is an overload prevention inner disk temperature.
For example, when the air conditioner is in a heating mode, when the outdoor environment temperature is high, the temperature of the inner disc is easily too high in the heating process, so that the compressor is easily overloaded, and a certain risk (such as scalding, firing, deformation of structural parts of the indoor unit, etc.) exists, and even the compressor is burnt. Therefore, when the temperature of the indoor tray is higher than a certain value, corresponding protection measures are needed to prevent accidents.
When the temperature of the inner panel is less than the second frequency limit temperature, the second frequency limit temperature is transmitted to the air conditioner external unit in step S1308.
The indoor unit transmits the second frequency limiting temperature (overload prevention inner disc temperature) to the air conditioner external unit when the inner disc temperature is smaller than the second frequency limiting temperature (overload prevention inner disc temperature) by way of example.
Step S1309 is executed when the absolute value is less than or equal to the first temperature threshold, or when the inner disk temperature is greater than or equal to the second frequency limit temperature.
In step S1309, the inside-disc temperature is transmitted to the outside air conditioner.
The indoor unit transmits the inner disc temperature to the air conditioner outdoor unit, illustratively, when the absolute value is less than or equal to a second temperature threshold, or when the inner disc temperature is greater than or equal to a second frequency limit temperature.
In step S1310, the outdoor unit of the air conditioner adjusts the operating frequency according to the second frequency-limiting temperature or the inner disc temperature, so that the second indoor environment temperature reaches the target temperature.
For example, when the absolute value is less than or equal to the second temperature threshold, the air conditioner external unit may increase the operating frequency at a preset rate of change according to the inner disc temperature when the inner disc temperature is received, and may stably operate at the operating frequency when the second indoor environment temperature (real-time temperature of the indoor environment) reaches the target temperature (temperature preset by the user) after reaching the target temperature. For example, the frequency change rate of the air conditioner is 1Hz/s, the target temperature is 26 ℃, the inner disc temperature is 25 ℃, the first indoor environment temperature is 25 ℃, the second indoor environment temperature is 24 ℃, the second temperature threshold is 2 ℃, the current working frequency of the air conditioner external unit is 60Hz, at the moment, the absolute value 1 ℃ is smaller than the second temperature threshold 2 ℃, the indoor opportunity sends the inner disc temperature 25 ℃ to the air conditioner external unit, when the air conditioner external unit receives the inner disc temperature, the working frequency can rise from 60Hz at the speed of 1Hz/s, so that the second indoor environment temperature is raised, when the second indoor environment temperature is 26 ℃ (namely equal to the target temperature), the frequency stops rising, and the air conditioner external unit stably operates at the working frequency with the stop rising. It can be understood that the frequency of the variable frequency air conditioner cannot rise limitlessly, and if the maximum value of the operating frequency of the air conditioner is reached during the frequency rising process, the variable frequency air conditioner stably operates at the maximum value.
When the temperature of the inner disc is greater than or equal to the second frequency limiting temperature (overload prevention inner disc temperature), when the frequency change rate of the air conditioner is 1Hz/s, the second frequency limiting temperature (overload prevention inner disc temperature) of the air conditioner is 35 ℃, the current inner disc temperature is 38 ℃, the indoor opportunity sends the inner disc temperature 38 ℃ to an air conditioner external unit, and when the air conditioner external unit receives the inner disc temperature 38 ℃, overload prevention protection of the air conditioner is triggered, wherein the overload prevention protection measures can be frequency reduction, frequency limiting or shutdown protection. At this time, when the overload protection measure is frequency reduction, the working frequency of the air conditioner external unit is reduced from the current working frequency at a speed of 1Hz/s until the temperature of the internal coil pipe is reduced to be less than or equal to the second frequency limiting temperature (overload prevention internal coil temperature); when the overload protection measures are frequency limiting, the working frequency of the air conditioner external unit is reduced from the current working frequency to a stable frequency, and the air conditioner external unit operates at the stable frequency until the temperature of the internal coil pipe is reduced to be less than or equal to the second frequency limiting temperature (overload prevention internal coil temperature); when the overload protection measure is stop protection, the air conditioner outer unit pauses operation until the temperature of the inner coil pipe is reduced to be less than or equal to a second frequency limiting temperature (overload protection inner coil temperature). In the above three overload protection measures, when the temperature of the inner coil is less than or equal to the second frequency limit temperature (overload protection inner coil temperature), the steps 1306 to 1310 are re-executed until the second indoor environment temperature reaches the target temperature, wherein the steps 1306 to 1310 are described in detail in the above embodiments and are not described in detail.
When the temperature of the inner disc is smaller than the second frequency limiting temperature (overload prevention inner disc temperature), the air conditioner external unit adjusts the working frequency according to the second frequency limiting temperature (overload prevention inner disc temperature), in this case, the absolute value of the difference between the second indoor environment temperature and the first indoor environment temperature is larger (i.e. the variation of the indoor environment temperature is larger), and the inner disc temperature does not trigger overload prevention protection, at this time, the external unit can operate according to the working frequency corresponding to the second frequency limiting temperature (overload prevention inner disc temperature) so as to quickly improve the second indoor environment temperature to reach the target value. The working frequency corresponding to the second frequency limiting temperature (overload prevention inner disc temperature) can be a larger frequency, so that when the air conditioner external unit operates at a frequency higher than the frequency, the inner disc temperature can be higher than the second frequency limiting temperature (overload prevention inner disc temperature), and overload prevention protection of the air conditioner is triggered. For example, when the frequency change rate of the air conditioner is 1Hz/s, the working frequency corresponding to the second frequency limiting temperature (overload preventing inner disc temperature) is 90Hz, and when the inner disc temperature is smaller than the second frequency limiting temperature (overload preventing inner disc temperature) and the current working frequency of the air conditioner external unit is 70Hz, after the air conditioner external unit receives the second frequency limiting temperature (overload preventing inner disc temperature), the working frequency is increased at a speed of 1Hz/s until the working frequency reaches 90Hz; alternatively, the working frequency can be directly increased from 70Hz to 90Hz for the air conditioner external unit, or the frequency can be increased from 70Hz to 90Hz by increasing the frequency change rate, for example, the frequency change rate can be increased from 1Hz/s to 2Hz/s, so that the time for increasing the frequency from 70Hz to 90Hz can be reduced, wherein the magnitude of the frequency change rate change can also be calculated according to the inner disc temperature, the second frequency limiting temperature (overload prevention inner disc temperature), other related parameters and the like. In summary, when the second indoor environment temperature reaches the target temperature, the operating frequency of the air conditioner external unit may be reduced from 90Hz to 1Hz/s until the target temperature is stabilized and operated at a constant operating frequency, and it is understood that the first indoor environment temperature may be the same as the target temperature.
In the technical scheme, when the air conditioner performs frequency reduction, acquiring a first indoor environment temperature at the time of frequency reduction; acquiring the temperature of an inner disc of the air conditioner when the second indoor environment temperature and the first indoor environment temperature meet the preset temperature condition corresponding to the working mode; and adjusting the working frequency of the air conditioner according to the temperature of the inner disc. Through the scheme, the problem of pipeline loss caused by frequent vibration of the pipeline when the air conditioner is subjected to larger frequency fluctuation can be effectively avoided, and the problem of noise caused by frequency change is reduced, so that the service life of the air conditioner is prolonged, and the user experience is improved.
Fig. 4 is a block diagram illustrating a variable frequency air conditioner control device 400 according to an exemplary embodiment. Referring to fig. 4, the variable frequency air conditioner control device 400 includes a first acquisition module 401, a second acquisition module 402, and a control module 403.
The first obtaining module 401 is configured to obtain, when the air conditioner performs frequency down conversion, a first indoor environment temperature at a frequency down conversion time.
The second obtaining module 402 is configured to obtain an inner disc temperature of the air conditioner when a second indoor environment temperature and the first indoor environment temperature meet a preset temperature condition corresponding to an operation mode.
The control module 403 is configured to adjust the operating frequency of the air conditioner according to the interior disk temperature.
Optionally, the first obtaining module 401 is configured to:
when the air conditioner performs frequency reduction, acquiring the indoor environment temperature at the time of frequency reduction as the first indoor environment temperature;
or when the air conditioner performs frequency reduction, acquiring the indoor environment temperature reduced to the stable frequency moment as the first indoor environment temperature.
Optionally, the second obtaining module 402 includes: a first judgment sub-module; in one embodiment:
when the working mode is a cooling mode or a dehumidifying mode, the first judging submodule is configured to judge that the absolute value of the difference value between the second indoor environment temperature and the first indoor environment temperature is larger than a first temperature threshold value.
Optionally, the control module 403 is configured to send the first frequency limiting temperature to an external air conditioner when the temperature of the inner disc is greater than the first frequency limiting temperature; the first frequency limiting temperature is the temperature of the anti-freezing inner disc and is used for indicating the air conditioner external unit to adjust the working frequency according to the temperature of the anti-freezing inner disc so that the second indoor environment temperature reaches the target temperature.
Optionally, the control module 403 is further configured to send the inner disc temperature to the air conditioner external unit when the inner disc temperature is less than or equal to the first frequency limiting temperature, so as to instruct the air conditioner external unit to adjust the working frequency according to the inner disc temperature to make the second indoor environment temperature reach the target temperature.
In another embodiment:
when the working mode is a heating mode, the first judging submodule is configured to judge that the absolute value of the difference value between the second indoor environment temperature and the first indoor environment temperature is larger than a second temperature threshold value.
Optionally, the control module 403 is configured to send the second frequency limiting temperature to the air conditioner external unit when the temperature of the inner disc is less than the second frequency limiting temperature; the second frequency limiting temperature is overload prevention inner disc temperature and is used for indicating the air conditioner external unit to adjust the working frequency according to the overload prevention inner disc temperature so that the second indoor environment temperature reaches the target temperature.
Optionally, the control module 403 is further configured to send the inner disc temperature to the air conditioner external unit when the inner disc temperature is greater than or equal to the overload prevention inner disc temperature, so as to instruct the air conditioner external unit to adjust the working frequency according to the inner disc temperature to make the second indoor environment temperature reach the target temperature.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
In the technical scheme, when the air conditioner performs frequency reduction, acquiring a first indoor environment temperature at the time of frequency reduction; acquiring the temperature of an inner disc of the air conditioner when the second indoor environment temperature and the first indoor environment temperature meet the preset temperature condition corresponding to the working mode; and adjusting the working frequency of the air conditioner according to the temperature of the inner disc. Through the scheme, the problem of pipeline loss caused by frequent vibration of the pipeline when the air conditioner is subjected to larger frequency fluctuation can be effectively avoided, and the problem of noise caused by frequency change is reduced, so that the service life of the air conditioner is prolonged, and the user experience is improved.
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 variable frequency air conditioner control method provided by the present disclosure.
The present disclosure also provides a variable frequency air conditioner including the variable frequency air conditioner control device 400 as shown in fig. 4.
Fig. 5 is a block diagram illustrating a variable frequency air conditioner 500 according to an exemplary embodiment. Referring to fig. 5, the inverter air conditioner 500 may include one or more of the following components: a processing component 502, a memory 504, a power supply component 506, a multimedia component 508, an audio component 510, an input/output interface 512, a sensor component 514, and a communication component 516.
The processing component 502 generally controls overall operation of the variable frequency air conditioner 500, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing assembly 502 may include one or more processors 520 to execute instructions to perform all or part of the steps of the variable frequency air conditioner control method described above. Further, the processing component 502 can include one or more modules that facilitate interactions between the processing component 502 and other components. For example, the processing component 502 can include a multimedia module to facilitate interaction between the multimedia component 508 and the processing component 502.
The memory 504 is configured to store various types of data to support operation at the variable frequency air conditioner 500. Examples of such data include instructions for any application or method operating on variable frequency air conditioner 500, contact data, phonebook data, messages, pictures, videos, and the like. The memory 504 may be implemented by any type or combination of volatile or nonvolatile 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 disk.
The power supply assembly 506 provides power to the various components of the variable frequency air conditioner 500. The power components 506 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the variable frequency air conditioner 500.
The multimedia component 508 includes a screen between the variable frequency air conditioner 500 and a user that provides an output interface. 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 input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 508 includes a front-facing camera and/or a rear-facing camera. When the inverter air conditioner 500 is in an operation mode, such as a photographing mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
The audio component 510 is configured to output and/or input audio signals. For example, the audio component 510 includes a Microphone (MIC) configured to receive external audio signals when the variable frequency air conditioner 500 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 504 or transmitted via the communication component 516. In some embodiments, the audio component 510 further comprises a speaker for outputting audio signals.
The input/output interface 512 provides an interface between the processing component 502 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 514 includes one or more sensors for providing status assessment of various aspects of the variable frequency air conditioner 500. For example, the sensor assembly 514 may detect an on/off state of the variable frequency air conditioner 500, a relative positioning of the components, such as a display and keypad of the variable frequency air conditioner 500, a change in position of the variable frequency air conditioner 500 or a component of the variable frequency air conditioner 500, the presence or absence of a user's contact with the variable frequency air conditioner 500, an orientation or acceleration/deceleration of the variable frequency air conditioner 500, and a change in temperature of the variable frequency air conditioner 500. The sensor assembly 514 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 514 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 514 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 516 is configured to facilitate wired or wireless communication between the variable frequency air conditioner 500 and other devices. The inverter air conditioner 500 may access a wireless network based on a communication standard, such as WiFi,2G, or 3G, or a combination thereof. In one exemplary embodiment, the communication component 516 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 516 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 variable frequency air conditioner 500 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, microcontrollers, microprocessors, or other electronic elements for performing the variable frequency air conditioner control method described above.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 504, that includes instructions executable by processor 520 of variable frequency air conditioner 500 to perform the variable frequency air conditioner control method described above. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
The apparatus may be a stand-alone electronic device or may be part of a stand-alone electronic device, for example, in one embodiment, the apparatus may be an integrated circuit (Integrated Circuit, IC) or a chip, where the integrated circuit may be an IC or may be a collection of ICs; the chip may include, but is not limited to, the following: GPU (Graphics Processing Unit, graphics processor), CPU (Central Processing Unit ), FPGA (Field Programmable Gate Array, programmable logic array), DSP (Digital Signal Processor ), ASIC (Application Specific Integrated Circuit, application specific integrated circuit), SOC (System on Chip, SOC, system on Chip or System on Chip), etc. The integrated circuit or the chip can be used for executing executable instructions (or codes) to realize the variable frequency air conditioner control method. The executable instructions may be stored on the integrated circuit or chip or may be retrieved from another device or apparatus, such as the integrated circuit or chip including a processor, memory, and interface for communicating with other devices. The executable instructions can be stored in the memory, and when the executable instructions are executed by the processor, the variable frequency air conditioner control method is realized; or the integrated circuit or the chip can receive the executable instruction through the interface and transmit the executable instruction to the processor for execution so as to realize the variable frequency air conditioner control method.
In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-described variable frequency air conditioner control method 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 disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general 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 is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (11)
1. The control method of the variable frequency air conditioner is characterized by comprising the following steps of:
When the air conditioner performs frequency reduction, acquiring a first indoor environment temperature at the time of frequency reduction;
acquiring the inner disc temperature of the air conditioner when the second indoor environment temperature and the first indoor environment temperature meet the preset temperature condition corresponding to the working mode;
and adjusting the working frequency of the air conditioner according to the temperature of the inner disc.
2. The method according to claim 1, wherein the down-converting time is a time when down-converting occurs or down-converting to a stable frequency time, and the acquiring the first indoor environment temperature at the down-converting time when down-converting occurs in the air conditioner includes:
when the air conditioner performs frequency reduction, acquiring the indoor environment temperature at the time of frequency reduction as the first indoor environment temperature;
or,
and when the air conditioner performs frequency reduction, acquiring the indoor environment temperature reduced to the stable frequency moment as the first indoor environment temperature.
3. The method according to claim 2, wherein when the operation mode is a cooling mode or a dehumidifying mode, the preset temperature condition is:
the absolute value of the difference between the second indoor ambient temperature and the first indoor ambient temperature is greater than a first temperature threshold.
4. A method according to claim 3, wherein when the operation mode is a cooling mode or a dehumidifying mode, the adjusting the operation frequency of the air conditioner according to the inside tray temperature includes:
when the temperature of the inner disc is larger than the first frequency limiting temperature, the first frequency limiting temperature is sent to an air conditioner external unit; the first frequency limiting temperature is an anti-freezing inner disc temperature and is used for indicating the air conditioner external unit to adjust the working frequency according to the anti-freezing inner disc temperature so that the second indoor environment temperature reaches the target temperature.
5. The method of claim 4, wherein the adjusting the operating frequency of the air conditioner according to the interior pan temperature when the operating mode is a cooling mode or a dehumidifying mode, further comprises:
and when the temperature of the inner disc is smaller than or equal to the first frequency limiting temperature, sending the temperature of the inner disc to the air conditioner external unit, and indicating the air conditioner external unit to adjust the working frequency according to the temperature of the inner disc so as to enable the temperature of the second indoor environment to reach the target temperature.
6. The method according to claim 2, wherein when the operation mode is a heating mode, the preset temperature condition is:
An absolute value of a difference between the second indoor ambient temperature and the first indoor ambient temperature is greater than a second temperature threshold.
7. The method of claim 6, wherein when the operation mode is a heating mode, the adjusting the operation frequency of the air conditioner according to the inside tray temperature comprises:
when the temperature of the inner disc is smaller than the second frequency limiting temperature, the second frequency limiting temperature is sent to an air conditioner external unit; the second frequency limiting temperature is overload prevention inner disc temperature and is used for indicating the air conditioner external unit to adjust working frequency according to the overload prevention inner disc temperature so that the second indoor environment temperature reaches the target temperature.
8. The method of claim 7, wherein when the operation mode is a heating mode, the adjusting the operation frequency of the air conditioner according to the temperature of the inner tray further comprises:
when the inner disc temperature is greater than or equal to the overload prevention inner disc temperature, the inner disc temperature is sent to the air conditioner external unit, and the air conditioner external unit is used for indicating the air conditioner external unit to adjust the working frequency according to the inner disc temperature so as to enable the second indoor environment temperature to reach the target temperature.
9. A variable frequency air conditioner control device, characterized by comprising:
the first acquisition module is configured to acquire a first indoor environment temperature at the time of frequency reduction when the air conditioner frequency reduction occurs;
the second acquisition module is configured to acquire the inner disc temperature of the air conditioner when the second indoor environment temperature and the first indoor environment temperature meet the preset temperature condition corresponding to the working mode;
and the control module is configured to adjust the working frequency of the air conditioner according to the temperature of the inner disc.
10. A variable frequency air conditioner, characterized by comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to: the steps of the method of any of claims 1 to 8 are carried out when the instructions are executed.
11. A computer readable storage medium having stored thereon computer program instructions, which when executed by a processor, implement the steps of the method of any of claims 1 to 8.
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| CN202310774076.9A CN116817407A (en) | 2023-06-27 | 2023-06-27 | Variable frequency air conditioner control method and device, variable frequency air conditioner and storage medium |
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| CN202310774076.9A CN116817407A (en) | 2023-06-27 | 2023-06-27 | Variable frequency air conditioner control method and device, variable frequency air conditioner and storage medium |
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