CN114061028B - Air conditioner, defrosting method thereof, and computer-readable storage medium - Google Patents
Air conditioner, defrosting method thereof, and computer-readable storage medium Download PDFInfo
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- CN114061028B CN114061028B CN202010765690.5A CN202010765690A CN114061028B CN 114061028 B CN114061028 B CN 114061028B CN 202010765690 A CN202010765690 A CN 202010765690A CN 114061028 B CN114061028 B CN 114061028B
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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
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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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
- F24F2110/12—Temperature of the outside air
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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
- F24F2110/20—Humidity
- F24F2110/22—Humidity of the outside air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a defrosting method of an air conditioner, which comprises the following steps: after the air conditioner runs in a heating mode, acquiring the air outlet temperature and the heating quantity of the air conditioner at regular time; determining heating attenuation according to the obtained heating quantity, and determining a first difference value between the air outlet temperature and the current indoor temperature; and when the heating attenuation is greater than a first preset threshold value and the first difference is smaller than a first preset difference, defrosting the outdoor unit of the air conditioner. The invention also discloses an air conditioner and a computer readable storage medium. The air conditioner has higher defrosting judgment accuracy.
Description
Technical Field
The present invention relates to the field of air conditioners, and in particular, to an air conditioner, a defrosting method thereof, and a computer readable storage medium.
Background
When the air conditioner is heating, there is a possibility that an outdoor heat exchanger of the outdoor unit is frosted. The frosting of the outdoor heat exchanger can cause the heating effect of the indoor unit to be reduced, and at the moment, the air conditioner needs to be defrosted to ensure the heating effect of the indoor unit.
The existing air conditioner determines whether the outdoor unit needs to be frosted or not, which is often judged by the set heating running time, the outdoor environment temperature and the evaporation temperature of the heat exchanger of the outdoor unit. However, since the configurations of the compressor, the heat exchanger and the like of each type of product are not completely the same, whether the air conditioners of different types frost or not is judged by adopting the set heating operation time, the outdoor environment temperature and the evaporation temperature of the outdoor unit heat exchanger, which may cause misjudgment of defrosting, that is, the phenomenon of defrosting without frost and without thick frost occurs, and the accuracy of judging defrosting of the air conditioner is low.
Disclosure of Invention
The invention mainly aims to provide an air conditioner, a defrosting method thereof and a computer readable storage medium, and aims to solve the problem of low defrosting judgment accuracy of the air conditioner.
In order to achieve the above object, the present invention provides a defrosting method for an air conditioner, which comprises the following steps:
after the air conditioner runs in a heating mode, acquiring the air outlet temperature and the heating quantity of the air conditioner at regular time;
determining heating attenuation according to the obtained heating quantity, and determining a first difference value between the air outlet temperature and the current indoor temperature; and
and when the heating attenuation is greater than a first preset threshold value and the first difference is smaller than a first preset difference, defrosting the outdoor unit of the air conditioner.
In an embodiment, the step of determining the heating attenuation amount according to the acquired heating amount includes:
determining a maximum heating amount in each acquired heating amount; and
and determining the heating attenuation amount according to a second difference value between the maximum heating amount and the currently obtained heating amount and the maximum heating amount.
In an embodiment, the step of obtaining the outlet air temperature and the heating capacity of the air conditioner at regular time includes:
acquiring a plurality of operating parameters of the air conditioner at regular time; and
and determining the air outlet temperature and the heating capacity of the air conditioner according to each operation parameter and the first weight corresponding to each operation parameter.
In an embodiment, the step of determining the outlet air temperature and the heating capacity of the air conditioner according to each of the operating parameters and the first weight corresponding to each of the operating parameters includes:
acquiring a second preset threshold corresponding to each operating parameter;
determining a first reference value corresponding to each operating parameter according to the value corresponding to each operating parameter, the first weight and the second preset threshold; and
and determining the heating capacity and the air outlet temperature of the air conditioner according to the first reference values.
In an embodiment, the step of determining the heating capacity and the outlet air temperature of the air conditioner according to the respective first reference values includes:
sequentially inputting each first reference value to each computing node in the air conditioner, and summing each first reference value corresponding to each computing node to obtain a second reference value corresponding to each computing node;
determining a second weight, a third weight and a third preset threshold corresponding to each computing node;
determining a third reference value corresponding to each computing node according to the second reference value, the second weight and the third preset threshold corresponding to the computing node, and determining a fourth reference value corresponding to each computing node according to the second reference value, the third weight and the third preset threshold corresponding to the computing node; and
and determining the heating capacity of the air conditioner according to the third reference values, and determining the air outlet temperature of the air conditioner according to the fourth reference values.
In an embodiment, the number of the computing nodes is preset according to the number of the operating parameters and the number of defrosting judgment factors, where the defrosting judgment factors include a heating capacity and an air outlet temperature.
In an embodiment, the step of periodically acquiring the outlet air temperature and the heating capacity of the air conditioner includes:
acquiring a plurality of operation parameters corresponding to the air conditioner at regular time; and
and determining the air outlet temperature and the heating capacity of the air conditioner through a prediction model and the operation parameters, wherein the prediction model is obtained through training of the operation parameters, the air outlet temperature of the air conditioner and the heating capacity of the air conditioner.
In one embodiment, the operating parameters include at least one of: indoor ambient temperature, outdoor ambient humidity, compressor frequency, indoor fan speed, outdoor fan speed, discharge temperature, discharge pressure, and suction pressure of the compressor.
To achieve the above object, the present invention further provides an air conditioner, which includes a memory, a processor, and a defrosting program stored in the memory and operable on the processor, wherein the defrosting program, when executed by the processor, implements the steps of the defrosting method of the air conditioner as described above.
To achieve the above object, the present invention also provides a computer readable storage medium storing a defrosting program, which when executed by a processor, implements the steps of the defrosting method of the air conditioner as described above.
According to the air conditioner, the defrosting method and the computer readable storage medium provided by the invention, after the air conditioner operates in the heating mode, the air outlet temperature and the heating quantity of the air conditioner are acquired in real time, the heating attenuation quantity is determined according to the acquired heating quantity, the difference value between the air outlet temperature and the current indoor temperature is determined, and the indoor unit is defrosted when the heating attenuation quantity is greater than a preset threshold value and the difference value is smaller than a preset difference value. Because the off-premises station degree of frosting is great, can greatly reduced the heating effect of air conditioner for the heating volume of air conditioner reduces and makes air conditioner air-out temperature lower, also the air conditioner can be through heating decrement and air-out temperature accurate definite off-premises station whether frosting, need not to judge whether the off-premises station frosts through heating operating time, outdoor temperature and evaporating temperature, avoid the different condition that appears the defrosting misjudgement of model of air conditioner, the defrosting of air conditioner judges the accuracy higher.
Drawings
Fig. 1 is a schematic diagram of a hardware architecture of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a defrosting method of an air conditioner according to a first embodiment of the present invention;
FIG. 3 is a detailed flowchart of step S20 of a second embodiment of the defrosting method of the air conditioner according to the present invention;
FIG. 4 is a detailed flowchart of step S10 of the defrosting method for an air conditioner according to the third embodiment of the present invention;
FIG. 5 is a detailed flowchart of step S10 of the fourth embodiment of the defrosting method for an air conditioner according to the present invention;
fig. 6 is a schematic diagram of a working flow of the pre-stored model according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows: after the air conditioner runs in a heating mode, acquiring the air outlet temperature and the heating quantity of the air conditioner at regular time; determining heating attenuation according to the obtained heating quantity, and determining a first difference value between the air outlet temperature and the current indoor temperature; and when the heating attenuation is larger than a first preset threshold value and the first difference value is smaller than a first preset difference value, defrosting the outdoor unit of the air conditioner.
When the outdoor unit is frosted to a large extent, the heating effect of the air conditioner can be greatly reduced, the heating capacity of the air conditioner is reduced, the air outlet temperature of the air conditioner is low, the air conditioner can accurately determine whether the outdoor unit is frosted through the heating attenuation and the air outlet temperature, whether the outdoor unit is frosted does not need to be judged through the heating operation time, the outdoor temperature and the evaporation temperature, the situation that defrosting misjudgment occurs when the air conditioner is different in model is avoided, and the defrosting judgment accuracy of the air conditioner is high.
As shown in fig. 1, fig. 1 is a schematic diagram of a hardware architecture of an air conditioner according to an embodiment of the present invention.
The terminal related to the embodiment of the invention can be an air conditioner, and the air conditioner comprises: a processor 101, such as a CPU, a memory 102 and a communication bus 103. Wherein a communication bus 103 is used for enabling the connection communication between these components.
The memory 102 may be a high-speed RAM memory or a non-volatile memory (non-volatile memory), such as a disk memory. As shown in fig. 1, a defrosting program may be included in the memory 103 as a kind of computer storage medium; and the processor 101 may be configured to invoke the defrost procedure stored in the memory 102 and perform the following operations:
after the air conditioner runs in a heating mode, acquiring the air outlet temperature and the heating quantity of the air conditioner at regular time;
determining heating attenuation according to the obtained heating quantity, and determining a first difference value between the air outlet temperature and the current indoor temperature; and
and when the heating attenuation is greater than a first preset threshold value and the first difference is smaller than a first preset difference, defrosting the outdoor unit of the air conditioner.
In one embodiment, the processor 101 may be configured to invoke a defrost procedure stored in the memory 102 and perform the following operations:
determining a maximum heating capacity among the acquired heating capacities; and
and determining the heating attenuation amount according to a second difference value between the maximum heating amount and the currently obtained heating amount and the maximum heating amount.
In one embodiment, the processor 101 may be configured to invoke a defrost procedure stored in the memory 102 and perform the following operations:
acquiring a plurality of operating parameters of the air conditioner at regular time; and
and determining the air outlet temperature and the heating capacity of the air conditioner according to each operation parameter and the first weight corresponding to each operation parameter.
In one embodiment, the processor 101 may be configured to invoke a defrost procedure stored in the memory 102 and perform the following operations:
acquiring a second preset threshold corresponding to each operating parameter;
determining a first reference value corresponding to each operating parameter according to the value corresponding to each operating parameter, the first weight and the second preset threshold; and
and determining the heating capacity and the air outlet temperature of the air conditioner according to the first reference values.
In one embodiment, the processor 101 may be configured to invoke a defrost procedure stored in the memory 102 and perform the following operations:
sequentially inputting each first reference value to each computing node in the air conditioner, and summing each first reference value corresponding to each computing node to obtain a second reference value corresponding to each computing node;
determining a second weight, a third weight and a third preset threshold corresponding to each computing node;
determining a third reference value corresponding to each computing node according to the second reference value, the second weight and the third preset threshold corresponding to the computing node, and determining a fourth reference value corresponding to each computing node according to the second reference value, the third weight and the third preset threshold corresponding to the computing node; and
and determining the heating capacity of the air conditioner according to each third reference value, and determining the air outlet temperature of the air conditioner according to each fourth reference value.
In one embodiment, the processor 101 may be configured to invoke a defrost procedure stored in the memory 102 and perform the following operations:
the number of the computing nodes is preset according to the number of the operating parameters and the number of defrosting judgment factors, and the defrosting judgment factors comprise heating capacity and air outlet temperature.
In one embodiment, the processor 101 may be configured to invoke a defrost procedure stored in the memory 102 and perform the following operations:
acquiring a plurality of operation parameters corresponding to the air conditioner at regular time; and
and determining the air outlet temperature and the heating capacity of the air conditioner through a prediction model and the operation parameters, wherein the prediction model is obtained through training of the operation parameters, the air outlet temperature of the air conditioner and the heating capacity of the air conditioner.
In one embodiment, the processor 101 may be configured to invoke a defrost procedure stored in the memory 102 and perform the following operations:
the operating parameters include at least one of: indoor ambient temperature, outdoor ambient humidity, compressor frequency, indoor fan speed, outdoor fan speed, discharge temperature, discharge pressure, and suction pressure of the compressor.
According to the scheme, after the air conditioner operates in the heating mode, the air outlet temperature and the heating quantity of the air conditioner are acquired in real time, the heating attenuation quantity is determined according to the acquired heating quantity, the difference value between the air outlet temperature and the current indoor temperature is determined, and the indoor unit is defrosted when the heating attenuation quantity is larger than a preset threshold value and the difference value is smaller than a preset difference value. Because the off-premises station degree of frosting is great, can greatly reduced the heating effect of air conditioner for the heating volume of air conditioner reduces and makes air conditioner air-out temperature lower, also the air conditioner can be through heating decrement and air-out temperature accurate definite off-premises station whether frosting, need not to judge whether the off-premises station frosts through heating operating time, outdoor temperature and evaporating temperature, avoid the different condition that appears the defrosting misjudgement of model of air conditioner, the defrosting of air conditioner judges the accuracy higher.
Based on the hardware architecture of the air conditioner, the embodiment of the defrosting method of the air conditioner is provided.
Referring to fig. 2, fig. 2 is a first embodiment of a defrosting method of an air conditioner according to the present invention, which includes the steps of:
step S10, after the air conditioner runs in a heating mode, acquiring the air outlet temperature and the heating quantity of the air conditioner at regular time;
when the air conditioner operates in a heating mode, the outdoor heat exchanger of the outdoor unit serves as a condenser. With the continuous operation of the heating mode of the air conditioner, the outdoor heat exchanger is always in a low-temperature state, so that the outdoor heat exchanger is frosted, and the frosting thickness is increased.
When the air conditioner heats, the outdoor heat exchanger obtains heat from the outside. If the frosting thickness of the outdoor heat exchanger is larger, the degree of heat obtained by the outdoor heat exchanger is lower, that is, the heat exchange rate of the outdoor heat exchanger is smaller, so that the heating effect of the air conditioner is poor. The heating effect is reduced, and the heating quantity of the air conditioner is reduced, and the air outlet temperature is lowered. Therefore, the air conditioner can determine whether the outdoor heat exchanger needs defrosting according to the filtering degree of the heating quantity and the change of the outlet air temperature so as to ensure the heating effect.
After the air conditioner operates in the heating mode, the air outlet temperature and the heating quantity of the air conditioner are acquired at regular time. The air outlet temperature can be detected by a temperature sensor at the air outlet of the air conditioner, and the heating capacity can be obtained according to an empirical formula. The known quantities in the empirical formula are numerical values of the operating parameters that affect the heating capacity, which may be the compressor operating frequency, the throttle opening, etc. Namely, the device determines the heating quantity according to an empirical formula and the acquired operating parameters.
Step S20, determining heating attenuation according to the obtained heating quantity, and determining a first difference value between the air outlet temperature and the current indoor temperature;
the air conditioner acquires the heating quantity at regular time, so the heating attenuation quantity can be obtained by subtracting the currently acquired heating quantity from the previously acquired heating quantity. The air conditioner acquires the current indoor temperature through a temperature sensor arranged outside the indoor unit, and the air conditioner is closed to determine a first difference value between the outlet air temperature and the indoor temperature.
And S30, when the heating attenuation is greater than a first preset threshold value and the first difference value is smaller than a first preset difference value, defrosting the outdoor unit of the air conditioner.
The air conditioner is stored with a first preset threshold, and if the heating attenuation is larger than the first preset threshold, the heating effect of the air conditioner is determined to be poor. The heating attenuation is obtained by subtracting the currently obtained heating quantity from the previously obtained heating quantity, and if the obtained heating quantity is a positive number, the heating effect of the air conditioner can be determined to be poor; if the subtraction result is negative, the heating effect of the air conditioner can be determined to be increased. In order to represent the heating attenuation, a negative sign is added before the calculated value, so that the heating attenuation which represents the deterioration of the heating effect is obtained, namely the heating attenuation is greater than a first preset threshold, and the heating effect of the air conditioner is determined to be poor.
The heating attenuation amount greater than the first preset threshold may be caused by the air conditioner fluctuating, and thus the device may further determine whether the heating effect of the air conditioner becomes poor by the difference between the outlet air temperature and the indoor temperature. When the thickness that outdoor heat exchanger frosted is great, because heat exchange efficiency reduces, can make the air-out temperature step-down, and the range of indoor temperature variation is less (after the mode of heating of air conditioner operation is for a period, at the judgement of carrying out the defrosting, therefore the indoor temperature is comparatively stable for the range of variation of indoor temperature is less), if first difference between air-out temperature and the indoor temperature is less than predetermineeing the difference, can determine that the wind temperature reduces. The air outlet temperature is reduced and the heating attenuation is large, so that the air conditioner can accurately determine that the outdoor heat exchanger needs defrosting. That is, when the heating attenuation is greater than the first preset threshold and the first difference is less than the first preset difference, the outdoor unit of the air conditioner is defrosted.
In the technical scheme provided by this embodiment, after the air conditioner operates the heating mode, the air-out temperature and the heating capacity of the air conditioner are acquired in real time, the heating attenuation amount is determined according to the acquired heating capacity, the difference value between the air-out temperature and the current indoor temperature is determined, and the indoor unit is defrosted if the heating attenuation amount is greater than a preset threshold value and the difference value is smaller than a preset difference value. Because the off-premises station degree of frosting is great, can greatly reduced the heating effect of air conditioner for the heating volume of air conditioner reduces and makes air conditioner air-out temperature lower, also the air conditioner can be through heating decrement and air-out temperature accurate definite off-premises station whether frosting, need not to judge whether the off-premises station frosts through heating operating time, outdoor temperature and evaporating temperature, avoid the different condition that appears the defrosting misjudgement of model of air conditioner, the defrosting of air conditioner judges the accuracy higher.
Referring to fig. 3, fig. 3 is a second embodiment of the defrosting method of the air conditioner according to the present invention, and based on the first embodiment, the step S20 includes:
step S21, determining the maximum heating capacity in the acquired heating capacities;
step S22, determining heating attenuation according to a second difference value between the maximum heating quantity and the currently obtained heating quantity and the maximum heating quantity, and determining a first difference value between the air outlet temperature and the current indoor temperature.
In this embodiment, the air conditioner may determine the maximum heating amount from the acquired heating amounts, where the maximum heating amount corresponds to the time when the heating effect of the air conditioner is optimal. The air conditioner subtracts the currently obtained heating quantity from the maximum heating quantity to obtain a second difference value, and then the second difference value is divided by the maximum heating quantity to obtain the heating attenuation quantity. It should be noted that the maximum heating amount is a heating amount different from the currently acquired heating amount. That is, when the currently obtained heating amount is the maximum heating amount, it is determined that the heating effect of the air conditioner is good, the outdoor heat exchanger is not frosted or the frosted thickness is small, and defrosting of the outdoor heat exchanger is not needed.
After the air conditioner determines the heating attenuation amount, the indoor temperature is subtracted from the outlet air temperature to obtain a first difference value, and therefore whether the air conditioner needs defrosting or not is judged according to the heating attenuation amount and the first difference value.
In the technical solution provided in this embodiment, the air conditioner determines the maximum heating capacity among the acquired heating capacities, and accurately determines the heating attenuation amount according to the second difference between the maximum heating capacity and the current heating capacity and the maximum heating capacity.
Referring to fig. 4, fig. 4 is a third embodiment of the defrosting method of the air conditioner according to the present invention, and based on the first or second embodiment, the step S10 includes:
s11, regularly acquiring various operation parameters corresponding to the air conditioner, wherein the operation parameters are multiple;
and S12, determining the air outlet temperature and the heating capacity of the air conditioner according to each operation parameter and the first weight corresponding to each operation parameter.
In this embodiment, the air conditioner acquires a plurality of operating parameters corresponding to the air conditioner at regular time, and each operating parameter refers to a parameter that affects the air outlet temperature and the heating capacity of the air conditioner. The operating parameters include, but are not limited to, at least one of the following: indoor ambient temperature, outdoor ambient humidity, compressor frequency, indoor fan speed, outdoor fan speed, discharge temperature, discharge pressure, and suction pressure of the compressor.
The air conditioner can determine the heating capacity and the air outlet temperature through various operation parameters. Specifically, each operating parameter has a corresponding weight, and the weight is defined as a first weight. The magnitude of the first weight of the operation parameter is related to the degree of the operation parameter influencing the air-out temperature and the heating capacity, and the greater the influence on the air-out temperature and the heating capacity of the operation parameter is, the greater the weight corresponding to the operation parameter is. For example, the compressor frequency has the greatest influence on the heating capacity and the outlet air temperature, and thus the first weight corresponding to the compressor frequency is set to be the largest; and the influence of the outdoor environment humidity on the heating capacity and the air outlet temperature is smaller, and the first weight corresponding to the outdoor environment humidity is set to be smaller.
After the air conditioner obtains the first weight corresponding to each operating parameter, the heating capacity and the air outlet temperature can be determined according to each operating parameter and the first weight corresponding to each operating parameter. Specifically, each operation parameter has a corresponding numerical value, the air conditioner multiplies the numerical value of the operation parameter by a first weight corresponding to the operation parameter, and the numerical values obtained after the product operation of the operation parameters are superposed to obtain a numerical sum. The numerical sum and the heating capacity and the air outlet temperature have a mapping relation, and the air conditioner can obtain the heating capacity and the air outlet temperature through the numerical sum and the mapping relation.
In the technical scheme provided by this embodiment, the air conditioner acquires each operating parameter and the first weight corresponding to each operating parameter, so that the heat and the air outlet temperature are accurately determined according to the operating parameter and the first weight corresponding to the operating parameter.
In an embodiment, when determining the heating capacity and the air outlet temperature of the air conditioner, the actual working condition of the air conditioner needs to be considered, so that a corresponding second preset threshold value is set for each operation parameter, the second preset threshold value may be understood as a fluctuation value of the operation parameter under the actual working condition of the air conditioner, the second preset threshold value may be an empirical value, and each operation parameter has a corresponding second preset threshold value. Defining the value of the operating parameter as X j The first weight corresponding to the operation parameter is defined as W ij The second preset threshold corresponding to the operation parameter is defined as q j . The air conditioner determines a first reference value f (X) corresponding to each operating parameter according to the value corresponding to the operating parameter, the first weight and a second preset threshold, namely f (X) = X j ×W ij -q j . The sum Σ (X) of the respective first reference values f (X) j ×W ij -q j ) Has a mapping relation with the heating quantity and the outlet air temperature, and the air conditioner can be based on the mapping relation and sigma (X) j ×W ij -q j ) And calculating to obtain the heating quantity and the air outlet temperature.
The actual operating mode of air conditioner is considered in this embodiment, and the heating capacity and the air-out temperature of air conditioner can be more accurate definite.
In one embodiment, after determining each first reference value, the air conditioner sums the first reference values to obtain a second reference value. The mapping relation between the second reference value and the heating capacity and the air outlet temperature is a theoretical mapping relation, and the air conditioner needs to consider the actual working condition. For this, a plurality of calculation nodes are arranged in the air conditioner, and each first reference value is input into each calculation node, so that the sum of each first reference value corresponding to each calculation node is calculated, that is, a second reference value corresponding to each calculation stage is obtained. The number of the calculation nodes is preset through the number of the operation parameters and the number of the defrosting judgment factors, the defrosting judgment factors are the heating capacity and the air output, namely the number of the defrosting judgment factors is 2. That is, the number of calculation nodes N = a + √ (N + m), where N is the number of operating parameters, m is the number of defrost judgment factors, a is a constant, and N is the number of calculation nodes. a is an empirical value, a may be 4, and in this embodiment, the defrosting determination factor is 2, the number of the operating parameters is 9, and then the preset number N =7, that is, when the calculation result of a + √ (N + m) has a decimal, an integer is taken to obtain N =7.
And each computing node correspondingly sets a second weight, a third weight and a third preset threshold. The third predetermined threshold value may also be understood as a correction value of the second reference value in the actual operating condition of the air conditioner. The second weight is used to determine the heating capacity and the third weight is used to determine the outlet air temperature. The air conditioner determines a third reference value corresponding to each calculation node according to the corresponding second reference value, the corresponding second weight and the corresponding third preset threshold value of the calculation node, and determines a fourth reference value corresponding to each calculation node according to the corresponding second reference value, the corresponding third weight and the corresponding third preset threshold value of the calculation node, so that the heating capacity is obtained according to each third reference value, and the air outlet temperature is obtained according to each fourth reference value.
In particular, the second reference value Q j ＝∑(X j ×W ij -q j ) The second weight is W ik1 The third weight is W ik2 And the third predetermined threshold is q k The third reference value = ∑ (W) ik1 ×(∑(X j ×W ij -qj))) -qk; a fourth reference value = (Wik 2 × ((Xj × Wij-qj))) -qk.
Heating amount Y1= ∑ (W) ik1 ×(∑(X j ×W ij -q j )))-q k )；
Outlet air temperature Y2= ∑ (W) ik2 ×(∑(X j ×W ij -q j )))-q k )。
The setting of the second weight and the third weight is obtained by continuous adjustment, and the adjustment principle is a gradient descent method.
Referring to fig. 5, fig. 5 is a fourth embodiment of the defrosting method of the air conditioner according to the present invention, and based on the first or second embodiment, the step S10 includes:
s13, regularly acquiring a plurality of operation parameters corresponding to the air conditioner;
and S14, determining the air outlet temperature and the heating capacity of the air conditioner through a prediction model and the operation parameters, wherein the prediction model is obtained through training of the operation parameters, the air outlet temperature of the air conditioner and the heating capacity of the air conditioner.
In this embodiment, the air conditioner is provided with a prediction model, and the prediction model is used for predicting the current heating capacity and the current outlet air temperature of the air conditioner.
Specifically, the air conditioner obtains each operation parameter, and the operation parameter includes but is not limited to at least one of the following parameters: indoor ambient temperature, outdoor ambient humidity, compressor frequency, indoor fan speed, outdoor fan speed, discharge temperature, discharge pressure, and suction pressure of the compressor.
The air conditioner inputs each operation parameter into the prediction model, and the heating capacity and the air outlet temperature output by the prediction model can be obtained. The preset model is obtained through training of each operating parameter, heating capacity and air outlet temperature. Specifically, the workflow diagram of the preset model may refer to fig. 6, that is, each operation parameter is input to a corresponding input layer, and each input layer sets the first weight W ij And a second predetermined threshold q j Each input layer inputs a structure calculated based on the first weight, the second preset threshold and the numerical value of the operation parameter to a preset number of hidden layers, and the hidden layers (the hidden layers can be understood as the calculation nodes in the above embodiments) are provided with the second weight W ik1 A third weight W ik2 And a third preset threshold q k And therefore, the heating quantity Y1 and the air outlet temperature Y2 are obtained according to the calculation results of all the hidden layers. The number of the hidden layers may refer to the setting method for calculating the number of the nodes, and will not be described herein again. In fig. 6, the input layer, the hidden layer, and the output layer are all neural network structures of a prediction model.
Of course, the prediction model may be set on the server, and the air conditioner sends the acquired operation parameters to the server, and requests the server to return the heating capacity and the outlet air temperature based on the prediction model.
In the technical scheme provided by the embodiment, the air conditioner can quickly and accurately determine the heating capacity and the air outlet temperature of the air conditioner through the prediction model and the acquired operation parameters.
The present invention also provides an air conditioner, which includes a memory, a processor, and a defrosting program stored in the memory and operable on the processor, wherein the defrosting program, when executed by the processor, implements the steps of the defrosting method of the air conditioner according to the above embodiment.
The present invention also provides a computer-readable storage medium storing a defrosting program that implements the steps of the defrosting method of the air conditioner as described above when executed by a processor.
The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention essentially or contributing to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioning device, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent flow transformations that may be embodied in the present specification and drawings, or directly or indirectly applied to other related arts, and are within the scope of the present invention.
Claims (9)
1. A defrosting method of an air conditioner is characterized by comprising the following steps:
after the air conditioner runs in a heating mode, acquiring the air outlet temperature and the heating quantity of the air conditioner at regular time;
the step of regularly obtaining the air-out temperature and the heating capacity of the air conditioner comprises the following steps:
acquiring a plurality of operation parameters corresponding to the air conditioner at regular time; and
determining the air outlet temperature and the heating capacity of the air conditioner through a prediction model and the operation parameters, wherein the prediction model is obtained through training of the operation parameters, the air outlet temperature of the air conditioner and the heating capacity of the air conditioner;
determining heating attenuation according to the obtained heating quantity, and determining a first difference value between the air outlet temperature and the current indoor temperature; and
and when the heating attenuation is greater than a first preset threshold value and the first difference is smaller than a first preset difference, defrosting the outdoor unit of the air conditioner.
2. The defrosting method of an air conditioner according to claim 1, wherein the step of determining a heating attenuation amount according to the acquired heating amount comprises:
determining a maximum heating capacity among the acquired heating capacities; and
and determining the heating attenuation amount according to a second difference value between the maximum heating amount and the currently obtained heating amount and the maximum heating amount.
3. The defrosting method for an air conditioner according to claim 1, wherein the step of periodically acquiring the outlet air temperature and the heating capacity of the air conditioner comprises the steps of:
acquiring a plurality of operating parameters of the air conditioner at regular time; and
and determining the air outlet temperature and the heating capacity of the air conditioner according to each operation parameter and the first weight corresponding to each operation parameter.
4. The defrosting method of an air conditioner according to claim 3, wherein the step of determining the outlet air temperature and the heating capacity of the air conditioner according to each of the operating parameters and the first weight corresponding to each of the operating parameters comprises:
acquiring a second preset threshold corresponding to each operating parameter;
determining a first reference value corresponding to each operating parameter according to the value corresponding to each operating parameter, the first weight and the second preset threshold; and
and determining the heating capacity and the air outlet temperature of the air conditioner according to the first reference values.
5. The defrosting method of an air conditioner according to claim 4, wherein the step of determining the heating capacity and the outlet air temperature of the air conditioner according to the respective first reference values comprises:
sequentially inputting each first reference value to each computing node in the air conditioner, and summing each first reference value corresponding to each computing node to obtain a second reference value corresponding to each computing node;
determining a second weight, a third weight and a third preset threshold corresponding to each computing node;
determining a third reference value corresponding to each computing node according to the second reference value, the second weight and the third preset threshold corresponding to the computing node, and determining a fourth reference value corresponding to each computing node according to the second reference value, the third weight and the third preset threshold corresponding to the computing node; and
and determining the heating capacity of the air conditioner according to each third reference value, and determining the air outlet temperature of the air conditioner according to each fourth reference value.
6. The defrosting method of an air conditioner according to claim 5, wherein the number of the calculation nodes is preset according to the number of the operation parameters and the number of defrosting judgment factors, and the defrosting judgment factors include a heating amount and an outlet air temperature.
7. The defrosting method of an air conditioner according to any one of claims 1 to 6, wherein the operation parameter includes at least one of: indoor ambient temperature, outdoor ambient humidity, compressor frequency, indoor fan speed, outdoor fan speed, discharge temperature, discharge pressure, and suction pressure of the compressor.
8. An air conditioner comprising a memory, a processor, and a defrost program stored in the memory and executable on the processor, the defrost program when executed by the processor implementing the steps of the defrosting method of the air conditioner as claimed in any one of claims 1 to 7.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a defrosting program, which when executed by a processor, implements the steps of the defrosting method of the air conditioner according to any one of claims 1 to 7.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061650A (en) * | 2013-03-19 | 2014-09-24 | 约克广州空调冷冻设备有限公司 | Frosting judgment method of air-cooled heat pump air conditioner |
| CN110940055A (en) * | 2019-12-16 | 2020-03-31 | 宁波奥克斯电气股份有限公司 | Heating and defrosting control method and device for air conditioner and air conditioner |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1796885A (en) * | 2004-12-24 | 2006-07-05 | 珠海格力电器股份有限公司 | Defroster control method for air-conditionner |
| CN105066377B (en) * | 2015-09-10 | 2017-12-12 | Tcl空调器(中山)有限公司 | Defrosting control method, device and the air conditioner of air conditioner |
| CN105222270B (en) * | 2015-09-16 | 2018-03-13 | 珠海格力电器股份有限公司 | Air-conditioner control method and system |
| CN105299843B (en) * | 2015-11-17 | 2017-10-27 | 广东美的制冷设备有限公司 | Air conditioner is controlled to enter the method and air conditioner of defrosting mode |
| CN107120794B (en) * | 2017-05-12 | 2019-12-31 | 青岛海尔空调器有限总公司 | Air conditioner operation condition adjusting method and air conditioner |
| CN108800416A (en) * | 2018-05-24 | 2018-11-13 | 青岛海尔空调器有限总公司 | air conditioner defrosting control method |
| CN108800439A (en) * | 2018-05-24 | 2018-11-13 | 青岛海尔空调器有限总公司 | air conditioner defrosting control method |
| CN109442679B (en) * | 2018-11-06 | 2020-10-30 | 广东美的制冷设备有限公司 | Control method and system of air conditioner and air conditioner |
| CN109323425B (en) * | 2018-11-15 | 2021-05-25 | 广东美的制冷设备有限公司 | Control method and device of air conditioner and readable storage medium |
| CN111256308A (en) * | 2018-11-30 | 2020-06-09 | 广东美的制冷设备有限公司 | Air conditioner, control method and device thereof, and storage medium |
| CN109751713A (en) * | 2018-12-28 | 2019-05-14 | 广东美的暖通设备有限公司 | The defrosting control method and storage medium of a kind of air conditioner, air conditioner |
| CN109827292A (en) * | 2019-01-16 | 2019-05-31 | 珠海格力电器股份有限公司 | Construction method, control method, the household electrical appliances of household electrical appliances adaptive power conservation Controlling model |
| CN110057045B (en) * | 2019-03-20 | 2021-10-29 | 青岛海尔空调器有限总公司 | Control method for air conditioner |
| CN109916000B (en) * | 2019-03-20 | 2020-04-28 | 珠海格力电器股份有限公司 | Defrosting control method and device for air conditioner, air conditioner and storage medium |
| CN110469958A (en) * | 2019-07-16 | 2019-11-19 | 青岛海尔空调器有限总公司 | Air-conditioner control method, device, computer equipment and storage medium |
| CN110594960A (en) * | 2019-09-30 | 2019-12-20 | 宁波奥克斯电气股份有限公司 | Air conditioner defrosting control method and device and air conditioner |
| CN110736231A (en) * | 2019-10-29 | 2020-01-31 | 珠海格力电器股份有限公司 | Air conditioner control method and device, air conditioner, storage medium and processor |
| CN111043712A (en) * | 2019-12-06 | 2020-04-21 | 珠海格力电器股份有限公司 | Defrosting control method and system for heating mode of air conditioner and air conditioner |
| CN111141006A (en) * | 2019-12-30 | 2020-05-12 | 宁波奥克斯电气股份有限公司 | Control method and control device for defrosting of air conditioner, storage medium and air conditioner |
| CN111397098B (en) * | 2020-04-10 | 2021-08-24 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device, air conditioner and computer readable storage medium |
| CN114294785B (en) * | 2021-12-29 | 2023-09-08 | 美的集团武汉暖通设备有限公司 | Air conditioner control method, air conditioner and computer readable storage medium |
-
2020
- 2020-07-31 CN CN202010765690.5A patent/CN114061028B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061650A (en) * | 2013-03-19 | 2014-09-24 | 约克广州空调冷冻设备有限公司 | Frosting judgment method of air-cooled heat pump air conditioner |
| CN110940055A (en) * | 2019-12-16 | 2020-03-31 | 宁波奥克斯电气股份有限公司 | Heating and defrosting control method and device for air conditioner and air conditioner |
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