CN112032950B - Air conditioner heat storage control method - Google Patents
Air conditioner heat storage control method Download PDFInfo
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- CN112032950B CN112032950B CN201910482352.8A CN201910482352A CN112032950B CN 112032950 B CN112032950 B CN 112032950B CN 201910482352 A CN201910482352 A CN 201910482352A CN 112032950 B CN112032950 B CN 112032950B
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- 238000005338 heat storage Methods 0.000 title claims abstract description 270
- 238000000034 method Methods 0.000 title claims abstract description 84
- 238000012937 correction Methods 0.000 claims abstract description 52
- 238000009825 accumulation Methods 0.000 claims abstract description 51
- 238000004378 air conditioning Methods 0.000 abstract description 13
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000015654 memory Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
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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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
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- Combustion & Propulsion (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioning, in particular to an air conditioner heat storage control method. The invention aims to solve the problems of short service life of a compressor and large temperature fluctuation of a coil pipe in the existing preheating scheme. To this end, the heat storage control method includes: acquiring a preset starting time and an outdoor environment temperature; correcting the preset starting-up time based on the time correction parameter; determining a heat storage time based on the outdoor ambient temperature; calculating a heat storage starting time based on the corrected preset starting time and the heat storage time; when the heat accumulation starting moment is reached, controlling the compressor to operate at a first heat accumulation frequency and controlling the outdoor fan to operate at a first heat accumulation rotating speed; detecting the temperature of the coil; judging the temperature of the coil pipe and the first preset temperature; and selectively adjusting the rotating speed of the outdoor fan and/or the running frequency of the compressor based on the judgment result. Through the control mode, the service life of the compressor can be prolonged, the fluctuation of the temperature of the coil pipe in the heat storage process is reduced, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to an air conditioner heat storage control method.
Background
When the air conditioner is started in cold winter, because the indoor and outdoor temperature is low, the air blown out after the air conditioner is started is cold air, the user experience is seriously influenced, and therefore, the existing air conditioner is started and provided with a cold air prevention mode. When the cold air prevention mode is started, the compressor and the outdoor fan are controlled to be started to store heat, and the indoor fan is controlled to operate after the temperature rises, so that the condition that cold air is blown out when the air conditioner is started is avoided. However, in practical applications, the waiting time of the air conditioner is long due to the operation of the cold air prevention mode within a few minutes after the air conditioner is started, which brings a feeling of a problem to the user, and causes discontent and complaints of the user.
For the above problems, the solution in the prior art is to control the compressor to preheat the coil of the indoor unit before starting up, so as to achieve the effect of immediately discharging hot air when a user starts up. However, in practical implementation, the compressor is usually operated intermittently, and when the temperature of the coil reaches the preset upper limit temperature, the compressor is stopped until the temperature of the coil drops to the preset lower limit temperature, and then the compressor is started again. However, this control method not only affects the life of the compressor due to frequent start-up, but also causes the temperature of the coil to fluctuate greatly, thereby resulting in poor user experience.
Accordingly, there is a need in the art for a new method of controlling thermal storage of an air conditioner to solve the above problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problems of short service life of the compressor and large temperature fluctuation of the coil in the existing preheating scheme, the present invention provides a heat storage control method for an air conditioner, wherein the air conditioner comprises a compressor, a throttling element, an outdoor heat exchanger, an outdoor fan, an indoor heat exchanger and an indoor fan, the outdoor fan is a direct current fan, and the heat storage control method comprises:
acquiring a preset starting time and an outdoor environment temperature of the air conditioner;
correcting the preset starting-up time based on the time correction parameter;
determining a heat storage time of the air conditioner based on the outdoor ambient temperature;
calculating the heat storage starting time of the air conditioner based on the corrected preset starting time and the heat storage time;
controlling the compressor to operate at a first heat accumulation frequency when the heat accumulation start time is reached;
controlling the outdoor fan to operate at a first heat accumulation rotation speed while, before or after the compressor starts to operate;
detecting a coil temperature of the indoor heat exchanger during operation of the compressor at the first heat accumulation frequency;
judging the temperature of the coil pipe and a first preset temperature;
and selectively adjusting the rotating speed of the outdoor fan and/or the running frequency of the compressor based on the judgment result.
In a preferred embodiment of the above-described air conditioner heat storage control method, the step of "selectively adjusting the rotation speed of the outdoor fan and/or the operating frequency of the compressor based on the determination result" further includes:
when the temperature of the coil pipe is higher than the first preset temperature, controlling the compressor to keep the first heat storage frequency to operate, and controlling the outdoor fan to operate at a second heat storage rotating speed;
wherein the first heat storage rotation speed is greater than the second heat storage rotation speed;
and when the temperature of the coil is less than or equal to the first preset temperature, controlling the compressor to keep the first heat storage frequency to operate, and controlling the outdoor fan to keep the first heat storage rotating speed to operate.
In a preferable aspect of the above-described air conditioner heat storage control method, after the step of "controlling the compressor to keep operating at the first heat storage frequency and controlling the outdoor fan to operate at a second heat storage rotation speed", the heat storage control method further includes:
detecting the temperature of the coil;
comparing the temperature of the coil with the first preset temperature and the second preset temperature;
selectively controlling the compressor to operate at a second heat storage frequency based on the comparison result;
the first preset temperature is lower than the second preset temperature, and the first heat storage frequency is higher than the second heat storage frequency.
In a preferred embodiment of the above-described air conditioner heat storage control method, the step of "selectively controlling the compressor to operate at the second heat storage frequency based on the comparison result" further includes:
when the temperature of the coil pipe is higher than the second preset temperature, controlling the compressor to operate at the second heat storage frequency;
and when the temperature of the coil pipe is less than or equal to the second preset temperature and greater than the first preset temperature, controlling the compressor to keep the first heat storage frequency to operate.
In a preferable aspect of the above-described air conditioner heat storage control method, after the step of "controlling the compressor to operate at the second heat storage frequency", the heat storage control method further includes:
detecting the temperature of the coil;
comparing the temperature of the coil with the first preset temperature and the second preset temperature;
and selectively controlling the compressor to keep the second heat accumulation frequency to operate and controlling the outdoor fan to operate at the first heat accumulation rotating speed based on the comparison result.
In a preferred embodiment of the above-described air conditioner heat storage control method, the step of "selectively controlling the compressor to maintain the second heat storage frequency in operation and controlling the outdoor fan to operate at the first heat storage rotation speed based on the comparison result" further includes:
when the temperature of the coil pipe is higher than the first preset temperature and lower than or equal to the second preset temperature, controlling the compressor to keep the second heat storage frequency to operate, and controlling the outdoor fan to operate at the first heat storage rotating speed;
and when the temperature of the coil pipe is higher than the second preset temperature, controlling the compressor to keep the second heat storage frequency to operate.
In a preferred embodiment of the above-described air conditioner heat storage control method, the heat storage control method further includes:
and when the temperature of the coil pipe is less than or equal to the first preset temperature, controlling the compressor to operate at the first heat storage frequency, and controlling the outdoor fan to operate at the first heat storage rotating speed.
In a preferred embodiment of the method for controlling heat storage of an air conditioner, the time correction parameter is determined based on a preset startup time and a historical actual startup time within a set number of days when the air conditioner operates last time.
In a preferred embodiment of the above air conditioner heat storage control method, the step of determining the time correction parameter based on a preset startup time and a historical actual startup time within a set number of days when the air conditioner operates last further includes:
acquiring historical preset starting-up time and historical actual starting-up time within the set number of days;
calculating the average value of the historical preset starting-up time and the average value of the historical actual starting-up time;
calculating a first difference value between the average value of the historical actual starting-up time and the average value of the historical preset starting-up time;
determining the first difference as the time correction parameter.
In a preferred embodiment of the above air conditioner heat storage control method, "correcting the preset startup time based on a time correction parameter" further includes:
and calculating the sum of the preset starting-up time and the time correction parameter.
As can be understood by those skilled in the art, in a preferred embodiment of the present invention, the air conditioner includes a compressor, a throttling element, an outdoor heat exchanger, an outdoor fan, an indoor heat exchanger, and an indoor fan, the outdoor fan is a dc fan, and the heat storage control method includes: acquiring a preset starting time and an outdoor environment temperature of an air conditioner; correcting the preset starting-up time based on the time correction parameter; determining the heat storage time of the air conditioner based on the outdoor environment temperature; calculating the heat storage starting time of the air conditioner based on the corrected preset starting time and the heat storage time; controlling the compressor to operate at a first heat accumulation frequency when the heat accumulation starting time is reached; controlling the outdoor fan to operate at a first heat storage rotating speed at the same time, before or after the compressor starts to operate; detecting the temperature of a coil pipe of the indoor heat exchanger in the process that the compressor operates at the first heat storage frequency; judging the temperature of the coil pipe and the first preset temperature; and selectively adjusting the rotating speed of the outdoor fan and/or the running frequency of the compressor based on the judgment result.
Through the control mode, the heat storage control method can prolong the service life of the compressor, greatly reduce the fluctuation of the temperature of the coil pipe in the heat storage process of the air conditioner and improve the user experience. Particularly, through the in-process that the compressor runs with first heat accumulation frequency and outdoor fan runs with first heat accumulation rotational speed, frequency and/or the rotational speed of outdoor fan based on the coil pipe temperature and the first comparative result of predetermineeing the temperature adjust compressor, make the air conditioner keep the operation all the time at heat accumulation stage compressor, just also guaranteed that the coil pipe temperature is in a comparatively stable temperature interval all the time, and the rotational speed through the operating frequency of adjustment compressor and outdoor fan, then can keep the coil pipe temperature in comparatively stable state, avoid because the undulant great problem that user experience is poor that brings of coil pipe temperature.
By correcting the preset starting-up time based on the time correction parameter, the control method can correct the preset starting-up time based on the starting-up habit of the user, so that the corrected preset starting-up time is closer to the real starting-up time of the user, heat storage is carried out on the air conditioner based on the corrected preset starting-up time, energy waste caused by insufficient heat storage time or overlong heat storage time can be avoided, accurate and personalized treatment for a single user is achieved, and user experience is improved. The heat storage time of the air conditioner is determined based on the outdoor environment temperature, so that the heat storage time is corrected based on the outdoor environment temperature, the accuracy of the heat storage time is further ensured, and the energy is prevented from being wasted.
It should be noted that, when the air conditioner operates in the heat storage mode, the compressor is designed to operate intermittently, so that the compressor has a rest time and saves power, but through years of research and tests of the inventor, when the compressor is repeatedly started, the compressor is more easily damaged due to large fluctuation of various parameters when the compressor starts to operate, and more electric energy is wasted. When the compressor operates in the heat storage mode, the heat storage frequency required by the compressor is extremely low, so that the power consumption of the compressor during the operation is extremely low, and the long-term use of the compressor is more facilitated. Therefore, the control method can enable the compressor to run more stably, the service life is longer, the fluctuation of the temperature of the coil pipe is smaller, and the heat storage effect is better.
Furthermore, when the temperature of the coil pipe rises to be higher than the first preset temperature, the compressor is kept to operate at the first heat storage frequency, and the outdoor fan is controlled to operate at the second heat storage rotating speed with the lower rotating speed.
Furthermore, when the temperature of the coil pipe rises to be higher than a second preset temperature, the compressor is controlled to operate in a frequency reduction mode under the condition that the outdoor fan operates at a second heat storage rotating speed.
Further, when the temperature of the coil pipe is reduced to be greater than the first preset temperature and less than or equal to the second preset temperature, the compressor is controlled to keep running at the second heat storage frequency, and the outdoor fan is controlled to run at the first heat storage rotating speed.
Further, when the temperature of the coil pipe is reduced to be less than or equal to a first preset temperature, the outdoor fan is controlled to keep running at a first heat storage rotating speed, and meanwhile the compressor is controlled to be in frequency rising to run at a first heat storage frequency, so that the frequency of the compressor is stably improved, the temperature of the coil pipe is further improved, and the temperature fluctuation of the coil pipe in the improving process is small.
Furthermore, by carrying out statistical calculation on the historical preset starting-up time and the historical actual starting-up time within the set number of days, calculating a first difference value between the average value of the preset starting-up time and the average value of the historical actual starting-up time within the set number of days, and taking the first difference value as a time correction parameter, the control method can calculate and determine the time correction parameter by using the use habit of the user on the air conditioner in the latest period of time, so that the preset starting-up time corrected by the time correction parameter is closer to the real starting-up time of the user in the latest period of time.
Drawings
The heat storage control method of the air conditioner of the present invention is described below with reference to the accompanying drawings. In the drawings:
fig. 1 is a flowchart of an air conditioning heat accumulation control method in a first embodiment of the present invention;
FIG. 2 is a logic control diagram of an air conditioning and thermal storage control method according to a first embodiment of the present invention;
fig. 3 is a flowchart of an air conditioning heat accumulation control method in a second embodiment of the present invention;
fig. 4 is a flowchart of an air conditioning heat accumulation control method in a third embodiment of the present invention;
fig. 5 is a flowchart of an air conditioning heat accumulation control method in a fourth embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the present embodiment is described with an example in which the outdoor fan is controlled to operate at the first heat accumulation rotation speed while the compressor starts operating, a person skilled in the art may adjust the sequence of the compressor and the fan on, without departing from the principle of the present invention. For example, the outdoor fan may be controlled to operate before or after the compressor is turned on.
Example 1
First, referring to fig. 1 and 2, a heat storage control method of an air conditioner of the present invention will be described. Fig. 1 is a flowchart of an air conditioning and heat storage control method according to a first embodiment of the present invention; fig. 2 is a logic control diagram of an air conditioning and heat accumulation control method in the first embodiment of the present invention.
As shown in fig. 1, in order to solve the problems of short service life of the compressor and large temperature fluctuation of the coil pipe in the existing preheating scheme, the air conditioner of the present invention includes a compressor, a throttling element, an outdoor heat exchanger, an outdoor fan, an indoor heat exchanger and an indoor fan, wherein the compressor is a variable frequency compressor, and the outdoor fan is a direct current fan. The method for controlling the heat storage of the air conditioner mainly comprises the following steps:
s101, controlling the compressor to operate at a first heat storage frequency, for example, controlling the compressor to operate at a certain frequency lower than a rated working frequency when the air conditioner operates in a heat storage mode, for example, the first heat storage frequency is 50Hz, and controlling the compressor to operate at 50Hz when the air conditioner operates in the heat storage mode;
s102, controlling an outdoor fan to operate at a first heat storage rotating speed while a compressor starts to operate; for example, the outdoor fan is a direct current fan, the first heat storage rotation speed may be 1000r/min, and the outdoor fan is controlled to start and operate at the first heat storage rotation speed of 1000r/min while the compressor starts to operate. Of course, the starting time of the outdoor fan may be before or after the compressor starts to operate, as long as the outdoor fan is correspondingly started to operate when the compressor operates.
S103, detecting the temperature of a coil pipe of the indoor heat exchanger in the process that the compressor runs at the first heat storage frequency; for example, during the operation of the compressor at the first heat accumulation frequency, the coil temperature of the indoor heat exchanger is detected by a temperature sensor provided on or near the indoor heat exchanger.
S104, judging the temperature of the coil and a first preset temperature, if the first preset temperature is 38 ℃, judging the detected temperature of the coil and 38 ℃;
s105, selectively adjusting the rotating speed of the outdoor fan and/or the running frequency of the compressor based on the judgment result; for example, when the temperature of the coil pipe is more than 38 ℃, controlling the outdoor fan to reduce the rotating speed, and controlling the compressor to keep the first heat storage frequency to operate; and if the temperature of the coil is less than or equal to 38 ℃, controlling the outdoor fan to keep running at the first heat storage rotating speed and controlling the compressor to keep running at the first heat storage frequency.
According to the heat storage control method, the service life of the compressor can be prolonged, the fluctuation of the temperature of the coil pipe in the heat storage process of the air conditioner is greatly reduced, and the user experience is improved. Particularly, through the in-process that the compressor runs with first heat accumulation frequency and outdoor fan runs with first heat accumulation rotational speed, frequency and/or the rotational speed of outdoor fan based on the coil pipe temperature and the first comparative result of predetermineeing the temperature adjust compressor, make the air conditioner keep the operation all the time at heat accumulation stage compressor, just also guaranteed that the coil pipe temperature is in a comparatively stable temperature interval all the time, and the rotational speed through the operating frequency of adjustment compressor and outdoor fan, then can keep the coil pipe temperature in comparatively stable state, avoid because the undulant great problem that user experience is poor that brings of coil pipe temperature.
Because the direct current fan realizes the frequency conversion comparatively easily, and the direct current fan that can the frequency conversion cost is lower, the effect is preferred and use extensively moreover, therefore this control method adopts the mode of control direct current fan rotational speed to realize the accurate control of coil pipe temperature.
It should be noted that, when the air conditioner operates in the heat storage mode, the compressor is designed to operate intermittently, so that the compressor has a rest time and saves power, but through years of research and tests of the inventor, when the compressor is repeatedly started, the compressor is more easily damaged due to large fluctuation of various parameters when the compressor starts to operate, and more electric energy is wasted. When the compressor operates in the heat storage mode, the heat storage frequency required by the compressor is extremely low, so that the power consumption of the compressor during the operation is extremely low, and the long-term use of the compressor is more facilitated. Therefore, the control method can enable the compressor to run more stably, the service life is longer, the fluctuation of the temperature of the coil pipe is smaller, and the heat storage effect is better.
The air conditioner heat storage control method of the present invention will be described in detail with reference to fig. 1 and 2.
As shown in fig. 1 and fig. 2, in a preferred embodiment, step S105 further includes:
when the temperature of the coil pipe is higher than a first preset temperature, controlling the compressor to keep the first heat storage frequency to operate, and controlling the outdoor fan to operate at a second heat storage rotating speed; when the temperature of the coil pipe is less than or equal to a first preset temperature, controlling the compressor to keep the first heat storage frequency to operate, and controlling the outdoor fan to keep the first heat storage rotating speed to operate; wherein the first heat storage rotating speed is greater than the second heat storage rotating speed. For example, the first preset temperature may be 38 ℃, the first heat storage frequency may be 50Hz, the first heat storage rotation speed may be 1000r/min, and the second heat storage rotation speed may be 500r/min, so that when the air conditioner stores heat, the coil temperature is controlled to be about 40 ℃ to ensure that hot air is discharged when the air conditioner is started. After operating in the regenerative mode for a period of time, when the coil temperature is greater than 38 ℃, it is demonstrated that the coil temperature has approached or exceeded the preferred temperature of 40 ℃, requiring a slow rate of temperature rise. At the moment, the compressor is kept to operate at 50Hz, and the outdoor fan is controlled to operate at the second heat storage rotating speed of 500r/min, so that the pressure of the air conditioning system is reduced, the phase change process of the refrigerant is weakened, and the temperature rising speed of the coil is slowed down. When the coil temperature is less than 38 ℃, the coil temperature is proved to be still low, and rapid temperature rise is required. At the moment, the compressor is kept to operate at 50Hz, and the outdoor fan is controlled to keep the first heat storage frequency of 1000r/min, so that the temperature rise speed of the coil temperature can be ensured, and the temperature of the coil can continuously rise.
Further, after the steps that the temperature of the coil pipe is more than 38 ℃, namely the compressor keeps operating at 50Hz, and the outdoor fan operates at the second heat storage rotating speed of 500r/min, the heat storage control method further comprises the following steps:
detecting the temperature of the coil; judging the temperature of the coil pipe and the first preset temperature and the second preset temperature; and selectively controlling the compressor to operate at the second heat accumulation frequency based on the comparison result. Specifically, when the temperature of the coil pipe is higher than a second preset temperature, the compressor is controlled to operate at a second heat storage frequency, and the outdoor fan is controlled to keep operating at a second heat storage rotating speed; when the temperature of the coil pipe is less than or equal to a second preset temperature and greater than the first preset temperature, controlling the compressor to keep the first heat storage frequency to operate, and controlling the outdoor fan to keep the second heat storage rotating speed to operate; the first preset temperature is lower than the second preset temperature, and the first heat storage frequency is higher than the second heat storage frequency. For example, the second preset temperature may be 42 ℃, and the second heat accumulation frequency may be a minimum operating frequency of the compressor, such as 30 Hz. When the temperature of the coil is higher than 42 ℃, the temperature of the coil is proved to exceed the preferred temperature by 40 ℃, and the temperature is slightly reduced to maintain the preferred temperature. At the moment, on the premise of keeping the outdoor fan to operate at the second heat storage rotating speed of 500r/min, the frequency of the compressor is reduced to the lowest operating frequency of 30Hz, so that the system pressure is further reduced, and the rising speed of the temperature of the coil pipe is further slowed down, maintained and even begins to fall on the premise of further reducing the energy consumption of the compressor. When the coil temperature is less than 42 ℃ but greater than 38 ℃, it turns out that the coil temperature, although close, is still below the preferred 40 ℃. At the moment, the temperature of the coil pipe can be ensured to continuously rise by maintaining the compressor to operate at 50Hz and keeping the outdoor fan to operate at the second heat storage rotating speed of 500 r/min.
Further, after the steps that the temperature of the coil pipe is more than 42 ℃, namely the compressor keeps operating at 30Hz and the outdoor fan operates at the second heat storage rotating speed of 500r/min, the heat storage control method further comprises the following steps:
detecting the temperature of the coil; comparing the temperature of the coil with a first preset temperature and a second preset temperature; and selectively controlling the compressor to operate at the second heat accumulation frequency and controlling the outdoor fan to operate at the first heat accumulation rotating speed based on the comparison result. Specifically, when the temperature of the coil pipe is less than or equal to a second preset temperature and greater than a first preset temperature, the compressor is controlled to keep running at a first heat storage frequency, and the outdoor fan is controlled to run at a first heat storage rotating speed; and when the temperature of the coil pipe is higher than a second preset temperature, controlling the compressor to keep the second heat storage frequency to operate, and controlling the outdoor fan to keep the second heat storage rotating speed to operate. For example, when the coil temperature is less than or equal to 42 ℃ and greater than 38 ℃, it is proven that the coil temperature has begun to drop, requiring the system pressure to be raised to maintain the coil temperature at the preferred temperature of 40 ℃. At the moment, the pressure of the system is improved by controlling the outdoor fan to be accelerated to the first heat storage rotating speed of 1000r/min to operate on the premise of keeping the compressor to operate at the lowest operating frequency of 30Hz, so that the descending speed of the temperature of the coil is slowed down, maintained and even begins to ascend to some extent. When the coil temperature is greater than 42 ℃, it is demonstrated that the coil temperature is still greater than the preferred temperature of 40 ℃. At the moment, the compressor is kept to operate at the lowest frequency of 30Hz, and the outdoor fan is kept to operate at the second heat storage rotating speed of 500r/min, so that the rising speed of the temperature of the coil pipe is slowed down, maintained and even reduced on the premise that the compressor operates at low energy consumption.
Further, when the temperature of the coil continuously drops to 38 ℃ or even below, the heat storage control method further comprises the following steps:
the compressor is controlled to operate at the first heat accumulation frequency, and the outdoor fan is controlled to maintain operation at the first heat accumulation rotation speed. For example, when the coil temperature is less than 38 ℃, it is proved that the coil temperature is already in a low state, and the temperature needs to be rapidly raised to the preferred temperature of 40 ℃. At the moment, on the premise of ensuring that the outdoor fan operates at the first heat storage rotating speed of 1000r/min, the operating frequency of the compressor is controlled to rise to 50Hz, so that the temperature of the coil pipe can rise back quickly, and the condition that the user experience is poor due to the fact that the temperature of the coil pipe is too low is avoided.
Referring to fig. 2, a possible operation of the air conditioner of the present invention will be described.
As shown in fig. 2, when the temperature of the coil is less than 30 ℃, the air conditioner needs to operate the heat storage mode to make the air conditioner start to produce hot air, at this time, the compressor is controlled to operate at a frequency of 50Hz, and the outdoor fan operates at a first heat storage rotation speed of 1000r/min, so that the temperature of the coil rises → when the temperature of the coil rises to 38 ℃, the compressor still keeps operating at 50Hz, at this time, the outdoor fan operates at a second heat storage rotation speed of 500r/min to reduce the system pressure, slow down the temperature rise speed of the indoor coil → when the temperature of the coil continues to rise to 42 ℃, at this time, the outdoor fan is controlled to keep operating at the second heat storage rotation speed of 500r/min, and the compressor is controlled to operate at the lowest operation frequency of 30Hz, further slow down the temperature rise speed of the indoor coil → when the temperature of the indoor coil begins to decrease and is less than 42 ℃, the compressor is kept operating at the lowest operation frequency of 30Hz, and controlling the outdoor fan to operate at the first heat storage rotating speed of 1000r/min to improve the system pressure, slowing down the falling speed of the temperature of the coil pipe → when the temperature of the indoor coil pipe is less than 38 ℃, keeping the outdoor fan to operate at the first heat storage rotating speed of 1000r/min, and controlling the compressor to operate at the operating frequency of 50Hz to further slow down the falling speed of the temperature of the coil pipe.
It should be noted that the above preferred embodiments are only used for illustrating the principle of the present invention, and are not intended to limit the protection scope of the present invention. Without departing from the principles of the present invention, one skilled in the art can adjust the above control method so that the present invention can be applied to more specific application scenarios.
For example, in an alternative embodiment, the specific values of the first preset temperature, the second preset temperature, the first heat storage rotation speed, the second heat storage rotation speed, the first heat storage frequency and the second heat storage frequency are not constant, and those skilled in the art can adjust the values without departing from the principle of the present invention as long as the values are set reasonably. For example, the first preset temperature can be arbitrarily selected from 35 ℃ to 40 ℃, and the second preset temperature can be arbitrarily selected from 40 ℃ to 45 ℃; the first heat storage rotating speed can be any rotating speed within 800-; the first heat storage frequency may be any value between 40Hz and 60Hz, and the second heat storage frequency may be a low operation frequency such as 35Hz, in addition to 30 Hz.
For example, in another alternative embodiment, although the present embodiment is described with an example in which the outdoor fan is controlled to operate at the first heat-storage rotation speed while the compressor starts operating, a person skilled in the art may adjust the sequence in which the compressor and the fan operate at the first heat-storage rotation speed without departing from the principles of the present invention. For example, the outdoor fan may be controlled to be operated on before or after the compressor is operated at the first heat accumulation rotation speed.
Of course, the above alternative embodiments, and the alternative embodiments and the preferred embodiments can also be used in a cross-matching manner, so that a new embodiment is combined to be suitable for a more specific application scenario.
Example 2
A second embodiment of the present invention will be described with reference to fig. 3. Fig. 3 is a flowchart of an air conditioning and heat storage control method according to a second embodiment of the present invention.
As shown in fig. 3, in one possible embodiment, the main steps of the air conditioner heat storage control method include:
s201, acquiring a preset starting time of the air conditioner; the preset starting time in this embodiment may be a starting time actively set by a user, or a starting time statistically obtained based on a historical starting time of the air conditioner. For example, the preset starting time may be a starting time set by a user through a remote controller, a mobile phone APP, or a starting time obtained by counting the historical actual starting time of the air conditioner by a controller or a cloud server of the air conditioner, for example, an average value of the historical actual starting time obtained by counting the historical actual starting time of the air conditioner by using statistical methods, probability theory calculation, and the like, and the average value is used as the preset starting time of the air conditioner. The following explains the control method by taking the cloud server as an example to perform statistical calculation.
S202, correcting the preset starting-up time based on the time correction parameter; the time correction parameter is used to represent a corresponding relationship between the preset startup time and the actual startup time, that is, a deviation between the preset startup time and the actual startup time, which is set or calculated by a user. After the preset starting time is set by a user or calculated by the air conditioner, the starting time is corrected based on the time correction parameter, and if the preset starting time is corrected by increasing or decreasing a time period on the basis of the determined preset starting time, the corrected preset starting time can be closer to the real starting time of the user. For example, if the preset power-on time is 18:00 and the time correction parameter is +10min, the corrected preset power-on time is 18:00+10min, which is 18: 10.
S203, calculating the heat storage starting time of the air conditioner based on the corrected preset starting time and the preset heat storage time; after the preset startup time is corrected, the startup time of the heat storage mode may be determined based on the heat storage time. For example, if the preset heat accumulation time of the air conditioner is 5min, the heat accumulation starting time is 18:05 when the preset startup time is 18: 10.
And S204, controlling the compressor to operate at the first heat storage frequency when the heat storage starting time is reached. For example, after the cloud server calculates the heat storage starting time, when the time comes to 18:05, the cloud server issues a heat storage starting instruction to the air conditioner, controls the compressor to operate at a certain frequency lower than the rated working frequency, for example, the first heat storage frequency is 50Hz, and controls the compressor to operate at 50Hz when the air conditioner operates the heat storage mode;
s205, controlling the outdoor fan to operate at a first heat storage rotating speed while, before or after the compressor starts to operate; for example, the outdoor fan is a direct current fan, the first heat storage rotation speed may be 1000r/min, and the outdoor fan is controlled to start and operate at the first heat storage rotation speed of 1000r/min while the compressor starts to operate. Of course, the starting time of the outdoor fan may be before or after the compressor starts to operate, as long as the outdoor fan is correspondingly started to operate when the compressor operates.
S206, detecting the temperature of a coil pipe of the indoor heat exchanger in the process that the compressor runs at the first heat storage frequency; for example, during the operation of the compressor at the first heat accumulation frequency, the coil temperature of the indoor heat exchanger is detected by a temperature sensor provided on or near the indoor heat exchanger.
S207, judging the temperature of the coil pipe and the first preset temperature; if the first preset temperature is 38 ℃, the detected coil temperature and the 38 ℃ are judged.
S208, selectively adjusting the rotating speed of the outdoor fan and/or the running frequency of the compressor based on the judgment result; for example, when the temperature of the coil pipe is more than 38 ℃, controlling the outdoor fan to reduce the rotating speed, and controlling the compressor to keep the first heat storage frequency to operate; and controlling the outdoor fan to keep the first heat storage rotating speed to operate and controlling the compressor to keep the first heat storage frequency to operate when the temperature of the coil is less than or equal to 38 ℃.
As can be seen from the above description, on the basis of embodiment 1, by correcting the preset startup time based on the time correction parameter, the control method of the present invention can correct the preset startup time based on the startup habit of the user, so that the corrected preset startup time is closer to the real startup time of the user, and the air conditioner is subjected to heat storage based on the corrected preset startup time, thereby avoiding energy waste caused by insufficient heat storage time or excessively long heat storage time, achieving accurate and personalized treatment for a single user, and improving user experience.
Since steps S204 to S208 are the same as or similar to those in embodiment 1, they are not described herein again. The following focuses on steps S201 to S203.
In a preferred embodiment, the time correction parameter is determined during the last operation of the air conditioner. Specifically, when the air conditioner receives a startup instruction and operates last time, if the air conditioner receives the startup instruction and operates in a heating mode in the same time period of the previous day or the same time period of the previous days, the current actual startup time is recorded first, then the historical preset startup time and the historical actual startup time in the set days before (including this time) this time are counted, and the average value of the historical preset startup time and the average value of the historical actual startup time in the set days are calculated respectively. And then calculating a first difference value between the average value of the historical actual starting-up time and the average value of the historical preset starting-up time, and storing the first difference value as a time correction parameter for the next correction of the preset starting-up time.
For example, the cloud server counts historical preset starting-up time and historical actual starting-up time of the air conditioner in the same period (e.g., 18:00-19:00) of the last 7 days including this time, and calculates a mean value of all historical preset starting-up time and a mean value of all historical actual starting-up time, if the mean value of all historical preset starting-up time is calculated to be 18:30 and the mean value of historical actual starting-up time is calculated to be 18:40, then the first difference is equal to 18:40-18:30 being 10min, that is, the time correction parameter is 10min, that is, in the last 7 days, the actual starting-up time of the user is 10min later than the preset starting-up time on average. Therefore, when the preset starting-up time is estimated next time, the sum of the estimated preset starting-up time and the time correction parameter is calculated to serve as the corrected preset starting-up time, so that the estimation accuracy of the preset starting-up time is improved, the calculation accuracy of the heat storage starting time of the heat storage mode is further improved, the energy waste is reduced, and the user experience is improved. Of course, the time correction parameter in the above example is described as a positive number, and the same holds true for the present control method if the time correction parameter obtained is a negative number. If the time correction parameter is-10 min, the actual starting time of the user in the past 7 days is 10min earlier than the preset starting time on average, and therefore when the preset starting time is estimated next time, the estimation accuracy of the preset starting time can be improved by calculating the sum of the preset starting time and the time correction parameter, namely subtracting 10min from the preset starting time to serve as the corrected preset starting time.
Similarly, when the power-on operation is in the heating mode, a new time correction parameter can be obtained by recording the preset power-on time and the current actual power-on time and combining the data 7 days before the power-on, so that the preset power-on time can be corrected for use next time. That is to say, each time the air conditioner receives a starting instruction to perform heating operation, the time correction parameter is calculated and adjusted based on the acquired current actual starting time and the data in the past set days.
In a more preferred embodiment, before adjusting the time correction parameter, it may be determined that the time correction parameter is not to be adjusted based on a comparison result between a second difference between the current actual startup time of the current startup and the current preset startup time and a preset threshold. Specifically, when a starting-up instruction is received, the current actual starting-up time is recorded; calculating a second difference value between the current actual starting-up time and the current preset starting-up time; judging the size of the second difference value and a preset threshold value; when the second difference is smaller than the preset threshold value, adjusting the time correction parameter; otherwise, the time correction parameter is not adjusted, but the last time correction parameter is used.
For example, the preset threshold may be 20min, when the air conditioner receives a start-up instruction and performs heating operation this time, the current actual start-up time is recorded to be 17:00, the preset start-up time is 18:00, the difference between the two is 60min, and the difference is much larger than the preset threshold of 20min, which indicates that the actual start-up time of the user this time belongs to a special situation, and the user may return home in advance due to a request for leave or other reasons, so that the current actual start-up time of the user this time is not suitable for being used as adjustment of the time correction parameter, so as to prevent the situation that the time correction parameter adjusted based on the actual start-up time of the time deviates from the actual habit of the user. On the contrary, if the difference between the preset startup time and the current actual startup time is within 20min or further within 10min, it is proved that the data can be used for adjusting the time correction parameter, so as to ensure the adjustment precision of the time correction parameter and avoid the waste of energy during heat storage.
It should be noted that the above preferred embodiments are only used for illustrating the principle of the present invention, and are not intended to limit the protection scope of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the setting manner described above, so that the present invention can be applied to more specific application scenarios.
For example, in an alternative embodiment, the timing of determining the time correction parameter may be adjusted as long as the adjusted time satisfies a condition before the preset startup time is corrected this time. For example, the time correction parameter may also be determined before the preset boot time is obtained, and the like.
For another example, in another alternative embodiment, the determination of the time correction parameter is not constant, and the person skilled in the art can adjust the calculation process so that the calculated result can be more accurate. For example, in the calculation process, the historical preset starting-up time and the historical actual starting-up time may be determined in a manner of weighted average or the like instead of calculating the average value of the historical preset starting-up time and the historical pilot starting-up time.
For another example, in another alternative embodiment, the timing of adjusting the time correction parameter may be adjusted after each time the power-on command is received, and the process of determining the magnitude between the second difference and the preset threshold is omitted, and such a process is not deviated from the concept of the present invention.
As another example, in another alternative embodiment, the specific values of the set number of days, the time correction parameter, the preset boot-up time, and the actual boot-up time are used only for illustrative purposes, and are not intended to limit the scope of the present invention, which may be adjusted by those skilled in the art without departing from the principles of the present control method.
Example 3
A third embodiment of the present invention will be described with reference to fig. 4. Fig. 4 is a flowchart of an air conditioning and heat storage control method according to a third embodiment of the present invention.
As shown in fig. 4, in one possible embodiment, the main steps of the air conditioner heat storage control method include:
s301, acquiring a preset starting time and an outdoor environment temperature of the air conditioner; for example, the preset starting time may be a starting time actively set by a user, or a starting time statistically obtained based on a historical starting time of the air conditioner; the outdoor ambient temperature may be collected by a temperature sensor or the like provided in the outdoor unit.
S302, determining the heat storage time of the air conditioner based on the outdoor environment temperature; if the outdoor environment temperature is determined, the cloud server calculates the heat storage time matched with the outdoor environment temperature based on the outdoor environment temperature.
S303, calculating the heat storage starting time of the air conditioner based on the preset starting time and the heat storage time; for example, after the preset startup time is obtained and the heat storage time is determined, the heat storage start time is obtained by calculating the difference between the preset startup time and the heat storage time. If the heat storage time is determined to be 5min, and the preset starting time is 18:10, the heat storage starting time is 18: 05.
And S304, when the heat accumulation starting time is reached, controlling the compressor to operate at the first heat accumulation frequency. For example, after the cloud server calculates the heat storage starting time, when the time comes to 18:05, the cloud server issues a heat storage starting instruction to the air conditioner, controls the compressor to operate at a certain frequency lower than the rated working frequency, for example, the first heat storage frequency is 50Hz, and controls the compressor to operate at 50Hz when the air conditioner operates the heat storage mode;
s305, controlling the outdoor fan to operate at a first heat storage rotating speed at the same time, before or after the compressor starts to operate; for example, the outdoor fan is a direct current fan, the first heat storage rotation speed may be 1000r/min, and the outdoor fan is controlled to start and operate at the first heat storage rotation speed of 1000r/min while the compressor starts to operate. Of course, the starting time of the outdoor fan may be before or after the compressor starts to operate, as long as the outdoor fan is correspondingly started to operate when the compressor operates.
S306, detecting the temperature of a coil pipe of the indoor heat exchanger in the process that the compressor runs at the first heat storage frequency; for example, during the operation of the compressor at the first heat accumulation frequency, the coil temperature of the indoor heat exchanger is detected by a temperature sensor provided on or near the indoor heat exchanger.
S307, judging the temperature of the coil pipe and the first preset temperature; if the first preset temperature is 38 ℃, the detected coil temperature and the 38 ℃ are judged.
S308, selectively adjusting the rotating speed of the outdoor fan and/or the running frequency of the compressor based on the judgment result; for example, when the temperature of the coil pipe is more than 38 ℃, controlling the outdoor fan to reduce the rotating speed, and controlling the compressor to keep the first heat storage frequency to operate; and controlling the outdoor fan to keep the first heat storage rotating speed to operate and controlling the compressor to keep the first heat storage frequency to operate when the temperature of the coil is less than or equal to 38 ℃.
As can be seen from the above description, on the basis of embodiment 1, the preset startup time is obtained, and the heat storage time of the air conditioner is determined based on the outdoor ambient temperature, so that the heat storage time is corrected based on the outdoor ambient temperature, the accuracy of the heat storage time is further ensured, and the energy is prevented from being wasted.
Since steps S304 to S308 are the same as or similar to those in embodiment 1, they are not described again here. The following focuses on steps S301 to S303.
Preferably, the heat accumulation time may be calculated based on a fitting formula between the outdoor ambient temperature and the heat accumulation time. For example, the heat storage time is calculated using the following formula (1):
t＝k×Tao+b (1)
in formula (1), t represents the heat accumulation time, Tao is the outdoor ambient temperature, and k and b are constants that can be fit based on experimental data. For example, the heat accumulation time of the compressor is tested several times for different outdoor ambient temperatures. In multiple experiments, the air conditioner air outlet temperature when the air conditioner enters a normal operation state is set to be the same target temperature, the compressor is enabled to operate at the same heat storage frequency, the air conditioner air outlet temperature reaches the same target temperature under different outdoor environment temperatures, and the heat storage time required by the compressor is judged, so that the linear relation between the heat storage time of the compressor and the outdoor environment temperature is established.
Of course, the determination of the heat storage time may also be performed based on other relationships between the outdoor ambient temperature and the heat storage time, such as the fixed corresponding relationship between the outdoor ambient temperature and the heat storage time. If a comparison table of the outdoor environment temperature and the heat storage time is determined based on the heat storage test, the comparison table is stored in the air conditioner, and the heat storage time corresponding to the outdoor environment temperature can be determined by using the comparison table.
The setting mode has the advantages that: because different outdoor environment temperatures have great influence on the heat storage capacity of the air conditioner, the heat storage time is determined by utilizing a fitting formula or a corresponding relation between the outdoor environment temperatures and the heat storage time, the accuracy of the heat storage time can be further ensured on the basis of ensuring the accuracy of the actual starting time, and the energy is prevented from being excessively wasted.
Example 4
A fourth embodiment of the present invention will be described with reference to fig. 5. Fig. 5 is a flowchart of an air conditioning and heat storage control method according to a fourth embodiment of the present invention.
As shown in fig. 5, in one possible embodiment, the main steps of the air conditioner heat storage control method include:
s401, acquiring a preset starting time and an outdoor environment temperature of the air conditioner; for example, the preset starting time may be a starting time actively set by a user, or a starting time statistically obtained based on a historical starting time of the air conditioner; the outdoor ambient temperature may be collected by a temperature sensor or the like provided in the outdoor unit.
S402, correcting the preset starting-up time based on the time correction parameter; after the preset starting time is set by a user or calculated by the air conditioner, the starting time is corrected based on the time correction parameter, and if the preset starting time is corrected by increasing or decreasing a time period on the basis of the determined preset starting time, the corrected preset starting time can be closer to the real starting time of the user. For example, if the preset power-on time is 18:00 and the time correction parameter is +10min, the corrected preset power-on time is 18:00+10 min-18: 10.
S403, determining the heat storage time of the air conditioner based on the outdoor environment temperature; if the outdoor environment temperature is determined, the cloud server calculates the heat storage time matched with the outdoor environment temperature based on the outdoor environment temperature.
S404, calculating the heat storage starting time of the air conditioner based on the corrected preset starting time and the heat storage time; for example, after the corrected preset startup time and the heat accumulation time are obtained, the heat accumulation start time is obtained by calculating the difference between the preset startup time and the heat accumulation time. If the heat storage time is determined to be 5min, and the preset starting time is 18:10, the heat storage starting time is 18: 05.
And S405, controlling the compressor to operate at the first heat storage frequency when the heat storage starting time is reached. For example, after the cloud server calculates the heat storage starting time, when the time comes to 18:05, the cloud server issues a heat storage starting instruction to the air conditioner, controls the compressor to operate at a certain frequency lower than the rated working frequency, for example, the first heat storage frequency is 50Hz, and controls the compressor to operate at 50Hz when the air conditioner operates the heat storage mode;
s406, controlling the outdoor fan to operate at a first heat storage rotating speed while, before or after the compressor starts to operate; for example, the outdoor fan is a direct current fan, the first heat storage rotation speed may be 1000r/min, and the outdoor fan is controlled to start and operate at the first heat storage rotation speed of 1000r/min while the compressor starts to operate. Of course, the starting time of the outdoor fan may be before or after the compressor starts to operate, as long as the outdoor fan is correspondingly started to operate when the compressor operates.
S407, detecting the temperature of a coil pipe of the indoor heat exchanger in the process that the compressor runs at the first heat storage frequency; for example, during the operation of the compressor at the first heat accumulation frequency, the coil temperature of the indoor heat exchanger is detected by a temperature sensor provided on or near the indoor heat exchanger.
S408, judging the temperature of the coil pipe and the first preset temperature; if the first preset temperature is 38 ℃, the detected coil temperature and the 38 ℃ are judged.
S409, selectively adjusting the rotating speed of the outdoor fan and/or the operating frequency of the compressor based on the judgment result; for example, when the temperature of the coil pipe is more than 38 ℃, controlling the outdoor fan to reduce the rotating speed, and controlling the compressor to keep the first heat storage frequency to operate; and controlling the outdoor fan to keep the first heat storage rotating speed to operate and controlling the compressor to keep the first heat storage frequency to operate when the temperature of the coil is less than or equal to 38 ℃.
As can be seen from the above description, on the basis of embodiment 1, by correcting the preset startup time based on the time correction parameter, the control method of the present invention can correct the preset startup time based on the startup habit of the user, so that the corrected preset startup time is closer to the real startup time of the user, and the air conditioner is subjected to heat storage based on the corrected preset startup time, thereby avoiding energy waste caused by insufficient heat storage time or overlong heat storage time, achieving accurate and personalized treatment for a single user, and improving user experience. The heat storage time of the air conditioner is determined based on the outdoor environment temperature, so that the heat storage time is corrected based on the outdoor environment temperature, the accuracy of the heat storage time is further guaranteed, and the energy is prevented from being wasted.
Since the implementation steps in this embodiment have been described in detail in embodiments 1 to 3, detailed description is omitted in this embodiment.
Those skilled in the art will appreciate that the air conditioner described above may also include other known structures such as processors, controllers, memories, etc., wherein the memories include, but are not limited to, ram, flash, rom, prom, volatile, non-volatile, serial, parallel, registers, etc., and the processors include, but are not limited to, CPLD/FPGA, DSP, ARM processor, MIPS processor, etc. Such well-known structures are not shown in the drawings in order to not unnecessarily obscure embodiments of the present disclosure.
It should be noted that although the detailed steps of the method of the present invention have been described in detail, those skilled in the art can combine, separate and change the order of the above steps without departing from the basic principle of the present invention, and the modified technical solution does not change the basic concept of the present invention and thus falls into the protection scope of the present invention.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (9)
1. A heat storage control method of an air conditioner, the air conditioner comprises a compressor, a throttling element, an outdoor heat exchanger, an outdoor fan, an indoor heat exchanger and an indoor fan, the outdoor fan is a direct current fan, and the heat storage control method comprises the following steps:
acquiring a preset starting time and an outdoor environment temperature of the air conditioner;
correcting the preset starting-up time based on the time correction parameter;
determining a heat storage time of the air conditioner based on the outdoor ambient temperature;
calculating the heat storage starting time of the air conditioner based on the corrected preset starting time and the heat storage time;
controlling the compressor to operate at a first heat accumulation frequency when the heat accumulation start time is reached;
controlling the outdoor fan to operate at a first heat accumulation rotation speed while, before or after the compressor starts to operate;
detecting a coil temperature of the indoor heat exchanger during operation of the compressor at the first heat accumulation frequency;
judging the temperature of the coil pipe and a first preset temperature;
selectively adjusting a rotation speed of the outdoor fan and/or an operating frequency of the compressor based on the determination result;
the step of selectively adjusting the rotation speed of the outdoor fan and/or the operation frequency of the compressor based on the determination result further includes:
when the temperature of the coil pipe is higher than the first preset temperature, controlling the compressor to keep the first heat storage frequency to operate, and controlling the outdoor fan to operate at a second heat storage rotating speed;
wherein the first heat storage rotation speed is greater than the second heat storage rotation speed;
after the step of "controlling the compressor to maintain the first heat storage frequency in operation and controlling the outdoor fan to operate at a second heat storage rotation speed", the heat storage control method further includes:
detecting the temperature of the coil;
comparing the temperature of the coil with the first preset temperature and the second preset temperature;
selectively controlling the compressor to operate at a second heat storage frequency based on the comparison result;
wherein the first preset temperature is lower than the second preset temperature, and the first heat storage frequency is higher than the second heat storage frequency;
the step of selectively controlling the compressor to operate at the second heat storage frequency based on the comparison result further includes:
and when the temperature of the coil pipe is higher than the second preset temperature, controlling the compressor to operate at the second heat storage frequency.
2. The air conditioner heat storage control method according to claim 1, wherein the step of selectively adjusting the rotation speed of the outdoor fan and/or the operating frequency of the compressor based on the determination result further comprises:
when the coil temperature is less than or equal to the first preset temperature, controlling the compressor to keep the first heat storage frequency running, and controlling the outdoor fan to keep the first heat storage rotating speed running.
3. An air conditioner heat storage control method according to claim 1, wherein the step of selectively controlling the compressor to operate at the second heat storage frequency based on the comparison result further comprises:
and when the temperature of the coil pipe is less than or equal to the second preset temperature and greater than the first preset temperature, controlling the compressor to keep the first heat storage frequency to operate.
4. An air conditioner heat storage control method according to claim 1, characterized in that after the step of "controlling the compressor to operate at the second heat storage frequency", the heat storage control method further comprises:
detecting the temperature of the coil;
comparing the temperature of the coil with the first preset temperature and the second preset temperature;
and selectively controlling the compressor to keep the second heat accumulation frequency to operate and controlling the outdoor fan to operate at the first heat accumulation rotating speed based on the comparison result.
5. An air conditioner heat storage control method according to claim 4, wherein the step of selectively controlling the compressor to maintain the second heat storage frequency in operation and controlling the outdoor fan to operate at the first heat storage rotation speed based on the comparison result further comprises:
when the temperature of the coil pipe is higher than the first preset temperature and lower than or equal to the second preset temperature, controlling the compressor to keep the second heat storage frequency to operate, and controlling the outdoor fan to operate at the first heat storage rotating speed;
and when the temperature of the coil pipe is higher than the second preset temperature, controlling the compressor to keep the second heat storage frequency to operate.
6. An air conditioner heat storage control method according to claim 1 or 4, characterized by further comprising:
and when the temperature of the coil pipe is less than or equal to the first preset temperature, controlling the compressor to operate at the first heat storage frequency, and controlling the outdoor fan to operate at the first heat storage rotating speed.
7. An air conditioner heat storage control method according to claim 1, characterized in that the time correction parameter is determined based on a preset startup time and a historical actual startup time within a set number of days when the air conditioner was last operated.
8. An air conditioner heat storage control method according to claim 7, wherein the step of "the time correction parameter is determined based on a preset startup time and a historical actual startup time within a set number of days when the air conditioner was last operated" further comprises:
acquiring historical preset starting-up time and historical actual starting-up time within the set number of days;
calculating the average value of the historical preset starting-up time and the average value of the historical actual starting-up time;
calculating a first difference value between the average value of the historical actual starting-up time and the average value of the historical preset starting-up time;
determining the first difference as the time correction parameter.
9. An air conditioner heat storage control method according to claim 1, wherein the step of "correcting the preset startup time based on a time correction parameter" further comprises:
and calculating the sum of the preset starting-up time and the time correction parameter.
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| JP2012007743A (en) * | 2010-06-22 | 2012-01-12 | Fujitsu General Ltd | Air conditioner |
| CN102493886A (en) * | 2011-11-30 | 2012-06-13 | 潍柴动力股份有限公司 | Method and device for correcting opening time of fuel injector |
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| JP2018071886A (en) * | 2016-10-28 | 2018-05-10 | ダイキン工業株式会社 | air conditioner |
| CN107576002A (en) * | 2017-08-17 | 2018-01-12 | 青岛海尔空调器有限总公司 | Air conditioner and its control method |
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Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant before: QINGDAO HAIER JOINT STOCK Co.,Ltd. |
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