CN112032975B - Control method of air conditioner - Google Patents
Control method of air conditioner Download PDFInfo
- Publication number
- CN112032975B CN112032975B CN201910483221.1A CN201910483221A CN112032975B CN 112032975 B CN112032975 B CN 112032975B CN 201910483221 A CN201910483221 A CN 201910483221A CN 112032975 B CN112032975 B CN 112032975B
- Authority
- CN
- China
- Prior art keywords
- frequency
- compressor
- oil return
- controlling
- air conditioner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 238000005057 refrigeration Methods 0.000 claims description 8
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 83
- 230000000694 effects Effects 0.000 description 8
- 238000011217 control strategy Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000015654 memory Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000010725 compressor oil Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioning, in particular to a control method of an air conditioner. The invention aims to solve the problems of low intelligent degree and poor user experience of the existing air conditioner. To this end, the air conditioner of the present invention includes a compressor, a throttling element, an outdoor heat exchanger and an outdoor fan, an indoor heat exchanger and an indoor fan, and a control method includes: when a starting-up instruction is received, acquiring the outdoor environment temperature and the operation mode of the air conditioner; selectively controlling the compressor to rapidly ramp up to a target frequency in stages based on the outdoor ambient temperature and the operating mode; and controlling the outdoor fan to operate at the same time, before or after the compressor starts to increase the frequency. The control method of the air conditioner can realize selective and rapid frequency rise of the air conditioner through the joint judgment of the outdoor environment temperature and the operation mode, thereby improving the intelligent degree and the user experience of the air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to a control method of an air conditioner.
Background
In order to meet the requirement of users for quick cooling/heating, the conventional air conditioner generally causes the compressor to quickly increase to a higher frequency for operation when the air conditioner is just started. In the process of rapidly raising the frequency of the compressor to a high frequency, in order to ensure normal oil return, the compressor is usually forced to operate for a period of time at a certain or certain fixed frequency (oil return frequency), and the frequency is continuously raised after the oil return is stable.
However, the above control method is relatively initial, and various application scenarios cannot be considered in practical application. Although the air conditioner has the function of quick cooling/heating, the function is not good, the intelligent degree of the air conditioner is reduced, and good use experience cannot be provided for users.
Accordingly, there is a need in the art for a new control method of an air conditioner to solve the above-mentioned problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problems of low intelligent degree and poor user experience of the existing air conditioner, the invention provides a control method of 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, and the control method comprises the following steps:
when a starting-up instruction is received, acquiring the outdoor environment temperature and the operation mode of the air conditioner;
selectively controlling the compressor to rapidly ramp up to a target frequency in stages based on the outdoor ambient temperature and the operating mode;
controlling the outdoor fan to operate at the same time, before or after the compressor starts to increase the frequency.
In a preferred embodiment of the above method for controlling an air conditioner, the step of selectively controlling the compressor to be rapidly increased in stages to a target frequency based on the outdoor ambient temperature and the operation mode further includes:
when the air conditioner runs in a refrigeration mode, judging the outdoor environment temperature and a first preset environment temperature;
when the outdoor environment temperature is higher than the first preset environment temperature, controlling the compressor to increase the frequency from a first starting frequency to a first oil return frequency at a first frequency increasing speed;
controlling the compressor to operate at the first oil return frequency for a first oil return time;
controlling the compressor to boost the target frequency at the first boost speed.
In a preferred embodiment of the above method for controlling an air conditioner, the step of selectively controlling the compressor to be rapidly increased in stages to a target frequency based on the outdoor ambient temperature and the operation mode further includes:
when the air conditioner runs in a heating mode, judging the outdoor environment temperature and a second preset environment temperature;
when the outdoor environment temperature is less than or equal to a second preset environment temperature, acquiring the exhaust temperature of the compressor;
judging the exhaust temperature and the preset exhaust temperature;
and selectively controlling the compressor to quickly increase the frequency to the target frequency in stages based on the judgment result.
In a preferred embodiment of the above method for controlling an air conditioner, the step of selectively controlling the compressor to be rapidly increased in stages to the target frequency based on the determination result further includes:
when the exhaust temperature is higher than the preset exhaust temperature, controlling the compressor to increase the frequency from a second starting frequency to the first oil return frequency at a second increasing frequency speed;
controlling the compressor to operate at the first oil return frequency for the first oil return time;
controlling the compressor to frequency up to a second oil return frequency at the second frequency up-conversion speed;
controlling the compressor to operate at the second oil return frequency for the first oil return time;
controlling the compressor to increase the frequency to the target frequency at the second increasing frequency speed;
wherein the second start-up frequency is less than the first start-up frequency, and the second up-conversion speed is less than the first up-conversion speed.
In a preferred embodiment of the above method for controlling an air conditioner, the step of selectively controlling the compressor to be rapidly increased in stages to the target frequency based on the determination result further includes:
when the outdoor environment temperature is higher than the second preset environment temperature, controlling the compressor to increase the frequency from the second starting frequency to the first oil return frequency at the second increasing frequency speed;
controlling the compressor to operate at the first oil return frequency for the first oil return time;
controlling the compressor to frequency up to the second oil return frequency at the second frequency up-conversion speed;
controlling the compressor to operate at the second oil return frequency for the first oil return time;
controlling the compressor to increase the frequency to the target frequency at the second increasing frequency speed.
In a preferred embodiment of the above method for controlling an air conditioner, the step of selectively controlling the compressor to be rapidly increased in stages to the target frequency based on the determination result further includes:
when the outdoor environment temperature is lower than the first preset environment temperature or when the exhaust temperature is lower than or equal to the preset exhaust temperature, controlling the compressor to increase the frequency from a third starting frequency to the first oil return frequency at a third increasing speed;
controlling the compressor to run at the first oil return frequency for a second oil return time;
controlling the compressor to ramp up to the second oil return frequency at the third ramp up speed;
controlling the compressor to operate at the second oil return frequency for the second oil return time;
controlling the compressor to ramp up to the target frequency at the third ramp-up speed;
the third starting frequency is smaller than the second starting frequency, the second oil return time is longer than the first oil return time, and the third frequency-increasing speed is smaller than the second frequency-increasing speed.
In a preferable technical solution of the control method of the air conditioner, the first up-conversion speed is 3 Hz/s; and/or the second up-conversion speed is 2 Hz/s; and/or the third up-conversion speed is 1 Hz/s.
In a preferable embodiment of the control method of the air conditioner, the first oil returning time is less than or equal to 30 s; and/or the second oil return time is greater than or equal to 60 s.
In a preferred embodiment of the control method of the air conditioner, the target frequency is a maximum operating frequency of the compressor.
In a preferred technical scheme of the control method of the air conditioner, the first preset ambient temperature is 18 ℃; and/or the second preset ambient temperature is-5 ℃; and/or the preset exhaust temperature is 0 ℃.
As can be understood by those skilled in the art, in a preferred embodiment of the present invention, an air conditioner includes a compressor, a throttling element, an outdoor heat exchanger and an outdoor fan, and an indoor heat exchanger and an indoor fan, and a control method includes: when a starting-up instruction is received, acquiring the outdoor environment temperature and the operation mode of the air conditioner; selectively controlling the compressor to rapidly ramp up to a target frequency in stages based on the outdoor ambient temperature and the operating mode; and controlling the outdoor fan to operate at the same time, before or after the compressor starts to increase the frequency.
Through the control mode, the control method of the air conditioner can realize selective and rapid frequency rise of the air conditioner through the joint judgment of the outdoor environment temperature and the operation mode, so that the intelligent degree and the user experience of the air conditioner are improved. Specifically, the operation mode of the air conditioner is obtained by detecting the outdoor environment temperature, the compressor is controlled to operate in a fast frequency increasing mode under the condition that the outdoor environment temperature and the operation mode both meet the fast frequency increasing condition of the air conditioner, and the compressor is controlled to operate in a conventional frequency increasing mode under the condition that the outdoor environment temperature and the operation mode do not meet the fast frequency increasing condition, so that the air conditioner can judge whether to perform fast frequency increasing or not based on the outdoor environment temperature and the operation mode of the air conditioner, the fast frequency increasing is executed when the fast frequency increasing is suitable, the conventional operation is kept when the fast frequency increasing is not suitable, the intelligent degree of the air conditioner is improved, and the user experience is improved.
Further, in the refrigeration mode, the compressor is directly controlled to be frequency-boosted from the first starting frequency to the first oil-returning frequency at the first frequency-boosting speed when the outdoor environment temperature is higher than the first preset environment temperature, and then the frequency is directly frequency-boosted to the target frequency after staying for the first oil-returning time.
Further, in the heating mode, the compressor is controlled to rapidly increase the frequency by further controlling the compressor based on the exhaust temperature of the compressor and the preset exhaust temperature when the outdoor environment temperature is less than or equal to the second preset environment temperature, the control method can further judge whether the exhaust temperature of the compressor reaches the rapid frequency increase condition when the outdoor temperature is lower, the compressor is controlled to rapidly increase the frequency when the exhaust temperature reaches the condition, the starting scene of rapid heating of the air conditioner is expanded, the rapid frequency increase of the compressor is possible when the outdoor environment temperature is lower, and the user experience is improved.
Drawings
A control method of an air conditioner of the present invention is described below with reference to the accompanying drawings. In the drawings:
fig. 1 is a flowchart of a control method of an air conditioner according to the present invention;
fig. 2 is a logic diagram of a control method of an air conditioner according to 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 operation of the outdoor fan is controlled to be turned on while the compressor starts to operate, a person skilled in the art may adjust the sequence of turning on the compressor and the outdoor fan 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.
First, referring to fig. 1 and 2, a control method of an air conditioner of the present invention will be described. Wherein, fig. 1 is a flow chart of a control method of an air conditioner of the present invention; fig. 2 is a logic diagram of a control method of an air conditioner according to the present invention.
As shown in fig. 1, in order to solve the problems of low intelligent degree and poor user experience of the existing air conditioner, 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. The control method of the air conditioner mainly comprises the following steps:
s100, when a starting-up instruction is received, acquiring the outdoor environment temperature and the operation mode of the air conditioner; if a starting instruction and an operation mode instruction sent by a user through a remote controller or a mobile phone APP and the like are received, the operation mode instruction is obtained, and the outdoor environment temperature is obtained through a temperature sensor arranged in an outdoor unit.
S200, selectively controlling the compressor to quickly increase the frequency to a target frequency in stages based on the outdoor environment temperature and the running mode; for example, the operation mode of the air conditioner is a heating mode, the outdoor environment temperature is 0 ℃, the target frequency is the maximum working frequency of the compressor, the air conditioner is provided with a condition of rapid frequency increase, and the compressor is controlled to rapidly increase the frequency in stages and finally increase the frequency to the maximum working frequency so as to realize rapid hot air outlet. For another example, the operation mode of the air conditioner is a refrigeration mode, the outdoor environment temperature is 30 ℃, the air conditioner also has a rapid frequency increasing condition, and at the moment, the compressor is controlled to rapidly increase the frequency in stages and finally increase the frequency to the maximum working frequency so as to realize rapid cold air outlet.
S300, controlling an outdoor fan to operate while, before or after the compressor starts to increase the frequency; for example, the outdoor fan is controlled to start operating at the same time as the compressor starts to increase in frequency. 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.
Through the control mode, the control method of the air conditioner can realize selective and rapid frequency rise of the air conditioner through the joint judgment of the outdoor environment temperature and the operation mode, so that the intelligent degree and the user experience of the air conditioner are improved. Specifically, the operation mode of the air conditioner is obtained by detecting the outdoor environment temperature, the compressor is controlled to operate in a fast frequency increasing mode under the condition that the outdoor environment temperature and the operation mode both meet the fast frequency increasing condition of the air conditioner, and the compressor is controlled to operate in a conventional frequency increasing mode under the condition that the outdoor environment temperature and the operation mode do not meet the fast frequency increasing condition, so that the air conditioner can judge whether to perform fast frequency increasing or not based on the outdoor environment temperature and the operation mode of the air conditioner, the fast frequency increasing is executed when the fast frequency increasing is suitable, the conventional operation is kept when the fast frequency increasing is not suitable, the intelligent degree of the air conditioner is improved, and the user experience is improved.
A control method of an air conditioner 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, the step S200 may further include:
when the air conditioner runs in a refrigeration mode, judging the magnitude of the outdoor environment temperature and the first preset environment temperature; and selectively controlling the compressor to quickly increase the frequency to the target frequency based on the judgment result. Specifically, when the outdoor environment temperature is higher than a first preset environment temperature, the compressor is controlled to be increased from a first starting frequency to a first oil return frequency at a first frequency increasing speed; then controlling the compressor to operate for a first oil return time at a first oil return frequency; and finally, controlling the compressor to increase the target frequency at the first frequency increasing speed.
For example, the first preset ambient temperature may be 18 ℃, the first start frequency may be 50Hz, the first frequency-up speed may be 3Hz/s, the first oil-returning frequency may be 68Hz, the first oil-returning time may be 30s, and the target frequency may be 120Hz, which is the maximum operating frequency of the compressor. When the air conditioner operates in a refrigeration mode and the outdoor environment temperature is higher than 18 ℃, the outdoor temperature at the moment is proved to be capable of ensuring the quick frequency increasing and oil return of the compressor, so that the first starting frequency and the first frequency increasing speed can be set to be very high parameter values, and the first oil return time is set to be very short. Therefore, when the outdoor environment temperature is judged to be higher than 18 ℃, the compressor is controlled to start at the starting frequency of 50Hz, the frequency is quickly increased to 68Hz at the speed of 3Hz/s, and then the 68Hz frequency is kept for running for 30s, so that the oil return effect of the compressor is ensured; and then, controlling the compressor to directly increase from 68Hz to 120Hz at the increasing frequency of 3Hz/s so as to realize the speed-doubling increasing frequency and quick cold air outlet of the air conditioner.
When the outdoor environment temperature is higher than the first preset environment temperature, the compressor is directly controlled to be boosted from the first starting frequency at the first boosting speed to the first oil return frequency, and then the compressor is directly boosted to the maximum working frequency after staying for the first oil return time. Through repeated tests, observation, analysis and comparison of the inventor, when the control parameters are adopted, the frequency of the compressor is quickly increased to the maximum frequency within a short time at a frequency increasing speed which is multiplied on the premise of ensuring the oil return effect, so that the frequency increasing time is reduced by multiple times, cold air can be blown out within a short time, and the user experience is improved.
Further, in a preferred embodiment, the step S200 further includes: when the air conditioner runs in a heating mode, judging the outdoor environment temperature and the second preset environment temperature; and selectively controlling the compressor to quickly increase the frequency to the target frequency based on the judgment result. Specifically, when the outdoor environment temperature is higher than a second preset environment temperature, the compressor is controlled to be increased from a second starting frequency to a first oil return frequency at a second increasing speed; controlling the compressor to operate at a first oil return frequency for a first oil return time; controlling the compressor to increase the frequency to a second oil return frequency at a second frequency increasing speed; controlling the compressor to run for a first oil return time at a second oil return frequency; and controlling the compressor to increase the frequency to the target frequency at the second frequency increasing speed. The second starting frequency is smaller than the first starting frequency, and the second frequency increasing speed is smaller than the first frequency increasing speed.
For example, the second preset ambient temperature may be-5 ℃, the second start frequency may be 40Hz, the second frequency-increasing speed may be 2Hz/s, the first oil return frequency may be 68Hz, the second oil return frequency may be 88Hz, the first oil return time may be 30s, and the target frequency may be 120Hz, which is the maximum operating frequency of the compressor. When the air conditioner runs in a heating mode and the outdoor environment temperature is higher than-5 ℃, the outdoor temperature is proved to be low enough to ensure that the compressor quickly increases the frequency and returns oil, so that the second starting frequency and the second frequency increasing speed can be set to be relatively high parameter values, and the first oil returning time can be set to be short. Therefore, when the outdoor environment temperature is judged to be higher than-5 ℃, the compressor is controlled to start at the starting frequency of 40Hz, the frequency is quickly increased to 68Hz at the speed of 2Hz/s, and then the 68Hz frequency is kept for running for 30s, so that the oil return effect of the compressor is ensured; next, controlling the compressor to ascend from 68Hz to 88Hz at the ascending speed of 2Hz/s, and then keeping the frequency for 30s to ensure the oil return effect again; and finally, directly increasing the frequency to the maximum working frequency of 120Hz at the frequency increasing speed of 2Hz/s so as to realize the speed-multiplying frequency increasing and the quick hot air outlet of the air conditioner.
When the outdoor environment temperature is higher than the second preset environment temperature, the compressor is controlled to be increased from the second starting frequency to the first oil return frequency at the second frequency increasing speed, then the compressor is increased to the second oil return frequency at the second frequency increasing speed after staying for the first oil return time, and then the compressor is increased to the maximum working frequency at the second frequency increasing speed after staying for the first oil return time. Through repeated tests, observation, analysis and comparison of the inventor, when the control parameters are adopted, the compressor can quickly raise the frequency to the maximum frequency at a higher frequency raising speed in a short time on the premise of ensuring the oil return effect, so that the blowing time of cold air during starting is greatly reduced, hot air can be blown out in a short time, and the user experience is improved.
Further, when the air conditioner operates in the heating mode, the step of selectively controlling the compressor to quickly increase to the target frequency based on the judgment result further includes:
when the outdoor environment temperature is less than or equal to a second preset environment temperature, acquiring the exhaust temperature of the compressor; judging the exhaust temperature and the preset exhaust temperature; and selectively controlling the compressor to quickly increase the frequency to the target frequency in stages based on the judgment result. Specifically, when the exhaust temperature is higher than the preset exhaust temperature, controlling the compressor to increase the frequency from the second starting frequency to the first oil return frequency at a second increasing speed and stay for the first oil return time; controlling the compressor to increase the frequency to a second oil return frequency at a second frequency increasing speed and stay for a first oil return time; and controlling the compressor to increase the frequency to the target frequency at the second frequency increasing speed.
For example, the preset exhaust temperature may be 0 ℃. When the outdoor environment temperature is less than or equal to minus 5 ℃, if the compressor is not suitable for fast frequency rise according to the conventional logic, but if the exhaust temperature in the compressor reaches 0 ℃ or even above, the internal operation environment of the compressor is proved to be enough to support the fast frequency rise and oil return of the compressor, therefore, when the exhaust temperature in the compressor is more than 0 ℃, the same control strategy can be adopted as that when the outdoor environment temperature is more than minus 5 ℃, so that the application scene of fast frequency rise of the compressor is increased, and the user experience is improved. For a specific control method in the application scenario, please refer to the above, which is not described herein again. Of course, in this application scenario, a control strategy that is not exactly the same as the above fast frequency-up may be adopted, as long as the control strategy as a whole satisfies the condition that the compressor can be fast frequency-up to the target frequency. For example, the second starting frequency, the second frequency increasing speed, the first oil return frequency, the second oil return frequency, the first oil return time, the target frequency can be further finely adjusted, and the like.
The control method can further judge whether the exhaust temperature of the compressor reaches the rapid frequency increasing condition when the outdoor temperature is lower, and control the rapid frequency increasing of the compressor when the exhaust temperature reaches the condition, so that the starting scene of rapid heating of the air conditioner is expanded, the rapid frequency increasing of the compressor is possible when the outdoor temperature is lower, and the user experience is improved. Through repeated tests, observation, analysis and comparison of the inventor, when the control parameters are adopted, the compressor can quickly increase the frequency to the maximum frequency at a higher frequency increasing speed in a short time on the premise of ensuring the oil return effect, so that the starting scene of quick heating of the air conditioner is greatly expanded, the blowing-out time of cold air during starting is greatly shortened, hot air can be blown out in a short time, and the user experience is improved.
Further, in a preferred embodiment, when the air conditioner operates in the heating mode but the discharge temperature of the compressor is less than or equal to the preset discharge temperature, or when the air conditioner operates in the cooling mode and the outdoor environment temperature is less than the first preset environment temperature, the method for controlling the air conditioner further includes:
controlling the compressor to increase the frequency from the third starting frequency to the first oil return frequency at a third frequency increasing speed and stay for a third oil return time; controlling the compressor to increase the frequency to a second oil return frequency at a third frequency increasing speed and stay for a third oil return time; controlling the compressor to increase the frequency to the target frequency at the third frequency increasing speed; and the third starting frequency is less than the second starting frequency, the third frequency-increasing speed is less than the second frequency-increasing speed, and the second oil return time is greater than the first oil return time.
For example, the third start-up frequency may be 30Hz, the third up-conversion speed may be 1Hz/s, and the third oil return time may be 60 s. When the air conditioner operates in a heating mode and the exhaust temperature of the compressor is lower than the preset exhaust temperature of 0 ℃, the outdoor environment temperature and the internal operation temperature of the compressor are proved to be lower, and the frequency is not suitable to be increased rapidly at the moment, so that the third starting frequency and the third frequency increasing speed can be set as relatively lower parameter values, and the second oil return time is set as a longer time. Therefore, when the outdoor environment temperature is judged to be less than or equal to minus 5 ℃ and the exhaust temperature of the compressor is judged to be less than or equal to 0 ℃, the compressor is controlled to start at the minimum operation frequency of 30Hz, the compressor is controlled to be increased to 68Hz at the speed of 1Hz/s, and then the compressor is operated for 60s at the frequency of 68Hz, so that the oil return effect of the compressor is ensured; next, controlling the compressor to ascend from 68Hz to 88Hz at the ascending speed of 1Hz/s, and then keeping the frequency for 60s to ensure the oil return effect again; and finally, directly increasing the frequency to the maximum working frequency of 120Hz at the frequency increasing speed of 1Hz/s so as to realize the hot air outlet of the air conditioner.
When the air conditioner operates in a refrigeration mode and the outdoor environment temperature is lower than 18 ℃, the outdoor environment temperature is proved to be lower, and quick refrigeration is not needed at the moment, so that the normal cold air blowing of the air conditioner can be realized only by frequency boosting according to a conventional frequency boosting mode. For example, the same control method as that used when the discharge temperature of the compressor is less than 0 ℃ in the heating mode is used for control. Of course, in such an application scenario, a control strategy that is not exactly the same as the above control method may be adopted, but the control strategy as a whole may satisfy the condition for normally raising the frequency of the compressor to the target frequency. For example, the third starting frequency, the third frequency increasing speed, the first oil return frequency, the second oil return time, the target frequency can be further finely adjusted, and the like.
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 air conditioner receives a power-on and heating instruction, firstly, the outdoor environment temperature is acquired as-8 ℃, the temperature lower than the second preset environment temperature is acquired as-5 ℃ → the exhaust temperature of the compressor is acquired as 3 ℃, the temperature higher than the preset exhaust temperature is 0 ℃ → the first starting frequency of the compressor is determined as 40Hz, the first frequency increasing speed is 2Hz/s → the compressor is controlled to start at 40Hz and increase to 68Hz at a speed of 2Hz/s, and the first oil return frequency of 68Hz is kept for 30s, the oil return of the compressor is ensured → after the operation for 30s, the compressor is controlled to be upscaled to 88Hz at the speed of 2Hz/s, and the operation is performed for 30s while maintaining the second oil return frequency of 88Hz, ensuring compressor oil return → after the operation for 30s, and controlling the compressor to rapidly increase the frequency to 120Hz at the speed of 2Hz/s, thereby ensuring that the indoor unit rapidly discharges hot air.
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, although the first preset environment temperature, the second preset environment temperature, the preset exhaust temperature, the first start frequency, the second start frequency, the third start frequency, the first frequency raising speed, the second frequency raising speed, the third frequency raising speed, the first oil return frequency, the second oil return frequency, the first oil return time, the second oil return time, the target frequency, and other values are specifically illustrated in this embodiment, the values are merely used to illustrate the principle of the present invention and are not intended to limit the protection scope of the present invention, and a person skilled in the art may adjust the values so that the adjusted values can meet more specific application scenarios.
For example, in another alternative embodiment, although the present embodiment is described with an example of controlling the outdoor fan to be turned on while the compressor is started to operate, a person skilled in the art may make adjustments to the compressor and outdoor fan control sequence without departing from the principles of the present invention. For example, the start of the outdoor fan may be controlled before or after the compressor is turned on.
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.
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, or 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 (8)
1. A control method of an air conditioner including a compressor, a throttling element, an outdoor heat exchanger and an outdoor fan, and an indoor heat exchanger and an indoor fan, the control method comprising:
when a starting-up instruction is received, acquiring the outdoor environment temperature and the operation mode of the air conditioner;
selectively controlling the compressor to rapidly ramp up to a target frequency in stages based on the outdoor ambient temperature and the operating mode;
controlling the outdoor fan to operate while, before, or after the compressor starts to increase the frequency;
the step of selectively controlling the compressor to be rapidly ramped up in stages to a target frequency based on the outdoor ambient temperature and the operating mode further comprises:
when the air conditioner runs in a refrigeration mode, judging the outdoor environment temperature and a first preset environment temperature;
when the outdoor environment temperature is higher than the first preset environment temperature, controlling the compressor to increase the frequency from a first starting frequency to a first oil return frequency at a first frequency increasing speed;
controlling the compressor to operate at the first oil return frequency for a first oil return time;
controlling the compressor to increase the frequency to the target frequency at the first increasing frequency speed;
the step of selectively controlling the compressor to be rapidly ramped up in stages to a target frequency based on the outdoor ambient temperature and the operating mode further comprises:
when the air conditioner runs in a heating mode, judging the outdoor environment temperature and a second preset environment temperature;
when the outdoor environment temperature is less than or equal to a second preset environment temperature, acquiring the exhaust temperature of the compressor;
judging the exhaust temperature and the preset exhaust temperature;
and selectively controlling the compressor to quickly increase the frequency to the target frequency in stages based on the judgment result.
2. The method as claimed in claim 1, wherein the step of selectively controlling the compressor to be rapidly increased in stages to the target frequency based on the determination result further comprises:
when the exhaust temperature is higher than the preset exhaust temperature, controlling the compressor to increase the frequency from a second starting frequency to the first oil return frequency at a second increasing frequency speed;
controlling the compressor to operate at the first oil return frequency for the first oil return time;
controlling the compressor to frequency up to a second oil return frequency at the second frequency up-conversion speed;
controlling the compressor to operate at the second oil return frequency for the first oil return time;
controlling the compressor to increase the frequency to the target frequency at the second increasing frequency speed;
wherein the second start-up frequency is less than the first start-up frequency, and the second up-conversion speed is less than the first up-conversion speed.
3. The method as claimed in claim 2, wherein the step of selectively controlling the compressor to be rapidly increased in stages to the target frequency based on the determination result further comprises:
when the outdoor environment temperature is higher than the second preset environment temperature, controlling the compressor to increase the frequency from the second starting frequency to the first oil return frequency at the second increasing frequency speed;
controlling the compressor to operate at the first oil return frequency for the first oil return time;
controlling the compressor to frequency up to the second oil return frequency at the second frequency up-conversion speed;
controlling the compressor to operate at the second oil return frequency for the first oil return time;
controlling the compressor to increase the frequency to the target frequency at the second increasing frequency speed.
4. The method as claimed in claim 2, wherein the step of selectively controlling the compressor to be rapidly increased in stages to the target frequency based on the determination result further comprises:
when the outdoor environment temperature is lower than the first preset environment temperature or when the exhaust temperature is lower than or equal to the preset exhaust temperature, controlling the compressor to increase the frequency from a third starting frequency to the first oil return frequency at a third increasing speed;
controlling the compressor to run at the first oil return frequency for a second oil return time;
controlling the compressor to ramp up to the second oil return frequency at the third ramp up speed;
controlling the compressor to operate at the second oil return frequency for the second oil return time;
controlling the compressor to ramp up to the target frequency at the third ramp-up speed;
the third starting frequency is smaller than the second starting frequency, the second oil return time is longer than the first oil return time, and the third frequency-increasing speed is smaller than the second frequency-increasing speed.
5. The control method of an air conditioner according to claim 4, wherein the first up-conversion speed is 3 Hz/s; and/or the second up-conversion speed is 2 Hz/s; and/or the third up-conversion speed is 1 Hz/s.
6. The control method of an air conditioner according to claim 4, wherein the first oil return time is less than or equal to 30 s; and/or the second oil return time is greater than or equal to 60 s.
7. The control method of an air conditioner according to claim 1, wherein the target frequency is a maximum operating frequency of the compressor.
8. The control method of an air conditioner according to claim 1, wherein the first preset ambient temperature is 18 ℃; and/or the second preset ambient temperature is-5 ℃; and/or the preset exhaust temperature is 0 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910483221.1A CN112032975B (en) | 2019-06-04 | 2019-06-04 | Control method of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910483221.1A CN112032975B (en) | 2019-06-04 | 2019-06-04 | Control method of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112032975A CN112032975A (en) | 2020-12-04 |
| CN112032975B true CN112032975B (en) | 2021-10-29 |
Family
ID=73576439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910483221.1A Active CN112032975B (en) | 2019-06-04 | 2019-06-04 | Control method of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112032975B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108423B (en) * | 2021-03-29 | 2022-07-26 | 广东科学技术职业学院 | Air conditioner starting control method |
| CN113551361A (en) * | 2021-07-29 | 2021-10-26 | 珠海格力电器股份有限公司 | Control method and control device for air conditioner with roller shutter mechanism |
| CN114543329B (en) * | 2022-01-17 | 2023-10-20 | 青岛海尔空调器有限总公司 | Oil return control method and device for air conditioner, air conditioner and storage medium |
| CN114537457A (en) * | 2022-01-24 | 2022-05-27 | 青岛海尔空调器有限总公司 | Control method for air conditioner of motor train unit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5511761B2 (en) * | 2011-10-13 | 2014-06-04 | 三菱電機株式会社 | Air conditioner |
| WO2016174750A1 (en) * | 2015-04-28 | 2016-11-03 | 三菱電機株式会社 | Air-conditioning device |
| CN105135618B (en) * | 2015-09-10 | 2018-02-13 | 深圳创维空调科技有限公司 | A kind of raising frequency method and system of convertible frequency air-conditioner |
| CN106642579B (en) * | 2016-12-26 | 2020-10-09 | 广东美的制冷设备有限公司 | Starting frequency adjusting method and device suitable for air conditioner compressor |
| CN107576016B (en) * | 2017-09-22 | 2020-04-24 | 青岛海尔空调器有限总公司 | Control method and system of air conditioner |
| CN108397878A (en) * | 2018-03-31 | 2018-08-14 | 青岛海尔空调器有限总公司 | The control method of air-conditioning under heating mode |
| CN108758995A (en) * | 2018-03-31 | 2018-11-06 | 青岛海尔空调器有限总公司 | The control method of air-conditioning under refrigeration mode |
| CN109489210B (en) * | 2018-10-15 | 2020-12-29 | 珠海格力电器股份有限公司 | Oil return control method and device for multi-split air conditioning system, oil return control equipment and air conditioner |
-
2019
- 2019-06-04 CN CN201910483221.1A patent/CN112032975B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112032975A (en) | 2020-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112032975B (en) | Control method of air conditioner | |
| CN107576016B (en) | Control method and system of air conditioner | |
| CN107631443B (en) | Control method and system of air conditioner under low-humidity heating working condition | |
| CN108758972B (en) | Air conditioner heating and defrosting control method, air conditioner and storage medium | |
| WO2020062598A1 (en) | Operation control method and apparatus for water multi-split unit, and medium and water multi-split air-conditioning system | |
| CN112032979B (en) | Control method of air conditioner | |
| CN107576031A (en) | The control method and system of air-conditioning under low temperature and high relative humidity heating condition | |
| CN107702281A (en) | The control method and system of air-conditioning under low temperature and low humidity heating condition | |
| KR101235546B1 (en) | An air conditioner and a control method the same | |
| CN104406270B (en) | Indoor temperature self-adaptive control method for air conditioner and air conditioner | |
| CN107576029B (en) | Control method and system of air conditioner under low-temperature low-humidity heating working condition | |
| CN112361524A (en) | Air conditioner self-cleaning control method and device under high-temperature working condition, air conditioner and storage medium | |
| CN107726558B (en) | Control method and system of air conditioner under high-humidity heating working condition | |
| JP5492625B2 (en) | Air conditioner | |
| CN110030695B (en) | Control method of air conditioner under high-humidity heating working condition | |
| CN107726556A (en) | The control method and system of air-conditioning under low temperature and high relative humidity heating condition | |
| CN108548304B (en) | Control method of air conditioner | |
| CN107631438B (en) | Control method and system of air conditioner under high-humidity heating working condition | |
| EP3104090A1 (en) | Control device of multiple-type air conditioner, multiple-type air conditioner system provided with same, and control method and control program for multiple-type air conditioner | |
| CN107655247B (en) | Control method and system of air conditioner in refrigeration mode | |
| CN107726557A (en) | The control method and system of air-conditioning under low temperature and high relative humidity heating condition | |
| CN112032983B (en) | Heating control method of air conditioner | |
| CN107576113B (en) | Control method and system of air conditioner under high-humidity heating working condition | |
| CN107576030A (en) | The control method and air conditioner of air conditioner | |
| CN107677006B (en) | Control method and system of air conditioner under low-humidity heating working condition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
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. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |