CN114738949B - Control method and device for mobile air conditioner and mobile air conditioner - Google Patents
Control method and device for mobile air conditioner and mobile air conditioner Download PDFInfo
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- CN114738949B CN114738949B CN202210247832.8A CN202210247832A CN114738949B CN 114738949 B CN114738949 B CN 114738949B CN 202210247832 A CN202210247832 A CN 202210247832A CN 114738949 B CN114738949 B CN 114738949B
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 230000008859 change Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 238000013507 mapping Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
- F24F11/47—Responding to energy costs
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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
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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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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/027—Condenser control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/60—Energy consumption
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
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- Thermal Sciences (AREA)
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Abstract
The application relates to the technical field of intelligent household appliances, and discloses a control method for a mobile air conditioner, wherein a compressor of the mobile air conditioner is a variable frequency compressor, and the method comprises the following steps: detecting the current indoor environment temperature; determining the operation frequency interval of the corresponding compressor according to the detected temperature; and determining the target frequency of the compressor in the operating frequency area according to the difference value between the detected temperature and the target temperature, and controlling the operating target frequency of the compressor. The method determines a corresponding compressor operating frequency interval based on a current indoor ambient temperature. And then determining a more accurate target frequency of the compressor in the determined operation frequency interval based on the difference value between the target temperature and the current indoor environment temperature. Therefore, the operation frequency of the compressor can be accurately controlled, and the goal temperature can be quickly reached. The working efficiency of the mobile air conditioner is improved. The application also discloses a control device of the mobile air conditioner, the mobile air conditioner and a storage medium.
Description
Technical Field
The application relates to the technical field of intelligent household appliances, in particular to a control method and device for a mobile air conditioner, the mobile air conditioner and a storage medium.
Background
At present, the mobile air conditioner is widely applied to a scene requiring local space temperature adjustment due to the characteristic of random movement. The existing fixed-frequency mobile air conditioner is low in working efficiency, and comfort of users is reduced.
In the related art, a mobile air conditioner control method is disclosed, including detecting whether a low water level switch is triggered, and detecting whether the temperature of an evaporator is within a predetermined temperature range when the low water level switch is triggered; if the judgment result is yes, the compressor operates at the current frequency; if the judgment result is negative, and the temperature of the evaporator is lower than the lowest temperature value of the preset temperature range, the operation frequency of the compressor is reduced; if the judgment result is negative and the temperature of the evaporator is higher than the highest temperature value in the preset temperature range, the operation frequency of the compressor is increased.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
In the related art, in order to reduce the generation of condensed water, the evaporator temperature needs to be maintained within a preset temperature range by adjusting the frequency of the compressor. This results in the compressor frequency not being more accurately matched to the target temperature, reducing the refrigeration efficiency.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides a control method and device for a mobile air conditioner, the mobile air conditioner and a storage medium, so that the working efficiency of the variable-frequency mobile air conditioner is improved, and the comfort of a user is improved.
In some embodiments, the method comprises: detecting the current indoor environment temperature; determining the operation frequency interval of the corresponding compressor according to the detected temperature; and determining the target frequency of the compressor in the operation frequency interval according to the difference value between the detected temperature and the target temperature, and controlling the operation target frequency of the compressor.
In some embodiments, the apparatus comprises: a processor and a memory storing program instructions, the processor being configured to execute the control method for a mobile air conditioner as described above when the program instructions are executed.
In some embodiments, the mobile air conditioner includes: the control device for a mobile air conditioner as described above.
In some embodiments, the storage medium stores program instructions that, when executed, perform a control method for a mobile air conditioner as previously described.
The control method and device for the mobile air conditioner, the mobile air conditioner and the storage medium provided by the embodiment of the disclosure can realize the following technical effects:
And determining a compressor operation frequency interval corresponding to the indoor environment temperature based on the current indoor environment temperature. Further, a more accurate compressor target frequency is determined within the determined operating frequency interval based on the difference between the target temperature and the current indoor ambient temperature. Therefore, the operation frequency of the compressor can be accurately controlled, and the goal temperature can be quickly reached. The working efficiency of the mobile air conditioner is improved, and the comfort of a user is improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
Fig. 1 is a schematic diagram of a control method for a mobile air conditioner according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of another control method for a mobile air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic view of another control method for a mobile air conditioner according to an embodiment of the present disclosure;
Fig. 4 is a schematic diagram of another control method for a mobile air conditioner provided in an embodiment of the present disclosure;
fig. 5 is a schematic view of a control device for a mobile air conditioner according to an embodiment of the present disclosure;
Fig. 6 is a schematic view of another control device for a mobile air conditioner according to an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The term "plurality" means two or more, unless otherwise indicated.
In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.
The term "corresponding" may refer to an association or binding relationship, and the correspondence between a and B refers to an association or binding relationship between a and B.
The mobile air conditioner includes a refrigerating circulation loop comprising compressor, evaporator, condenser and throttle device. Wherein, the compressor is a variable frequency compressor. Thus, the frequency of the compressor can be adjusted according to the requirements of users. In addition, in the embodiment of the disclosure, the air duct of the mobile air conditioner is a single air duct, and the evaporation side and the condensation side of the mobile air conditioner share one fan, so that the air inlet temperatures at two sides are consistent. In this case, temperatures on the evaporation side and the condensation side are obtained, which can be detected by one temperature sensor.
As shown in fig. 1, an embodiment of the present disclosure provides a control method for a mobile air conditioner, including:
s101, detecting the current indoor environment temperature by a temperature sensor.
S102, the mobile air conditioner determines the operation frequency interval of the corresponding compressor according to the detected temperature.
S103, the mobile air conditioner determines the target frequency of the compressor in the operation frequency interval according to the difference value between the detected temperature and the target temperature, and controls the operation target frequency of the compressor.
Here, a temperature sensor is installed in a mobile air conditioner or a space environment where the mobile air conditioner is located to acquire a current indoor environment temperature in real time. When the mobile air conditioner starts to operate, the operation frequency interval of the compressor is determined according to the detected current indoor environment temperature. In general, the higher the indoor ambient temperature of the temperature to be regulated, the higher the operating frequency of the compressor. Therefore, the operating frequency range of a compressor is first determined based on the indoor environment temperature. The indoor environment temperature can be divided into a plurality of temperature intervals of high temperature, medium temperature, low temperature and the like, and each temperature interval corresponds to a different operation frequency interval of the compressor. And then, according to the difference value between the indoor environment temperature and the target temperature, the target operating frequency of the compressor is defined in the corresponding operating frequency interval. Wherein, in the determined operation frequency interval, different difference values, the target operation frequency of the compressor is different. For example, a larger difference indicates a higher user demand and a higher target frequency. I.e. the greater the difference, the closer the target frequency is to the upper limit value in the determined operating frequency interval. Likewise, the smaller the difference, the closer the target frequency is to the lower limit value in the determined operating frequency interval. Thus, when the mobile air conditioner is under a high load, the compressor is operated at a high frequency. The indoor rapid refrigeration can be realized, and meanwhile, the reliability and the stability of the system operation can be ensured. When the mobile air conditioner is at a low load, the compressor operates at a lower frequency. When the indoor environment approaches the target environment, the relative stability of the refrigerating capacity and the indoor heat load of the mobile air conditioner can be maintained, and the energy is saved.
By adopting the control method for the mobile air conditioner provided by the embodiment of the disclosure, the operation frequency interval of the compressor corresponding to the indoor environment temperature is determined based on the current indoor environment temperature. Further, a more accurate compressor target frequency is determined within the determined operating frequency interval based on the difference between the target temperature and the current indoor ambient temperature. Therefore, the operation frequency of the compressor can be accurately controlled, and the goal temperature can be quickly reached. The working efficiency of the mobile air conditioner is improved, and the comfort of a user is improved.
Optionally, in step S102, the mobile air conditioner determines an operation frequency interval of the corresponding compressor according to the detected temperature, including:
the mobile air conditioner determines an indoor environment temperature range to which the detected temperature belongs.
And determining the operation frequency interval of the compressor corresponding to the detection temperature according to the mapping relation between the indoor environment temperature interval and the operation frequency interval of the compressor.
Here, after the current indoor environment temperature is obtained, an indoor environment temperature zone in which the indoor environment temperature is located is determined. Wherein, as described above, the indoor environment temperature may be divided into a plurality of sections. And matching the operating frequency interval of the corresponding compressor for each interval. As an example, the indoor ambient temperature is divided from low to high into (- +.16 ], (16, 19], (19, 23], (23, 27], (27, 30], (30, 33], (33, 36], (36, +.9) temperature intervals, and each temperature interval corresponds to a compressor operating frequency interval.
Further, there are an upper limit value and a lower limit value of an operation frequency interval of each compressor, that is, a highest frequency and a lowest frequency of the interval. The highest frequency is the highest frequency of the compressor meeting the corresponding temperature interval, which is comprehensively determined according to the refrigerating capacity, the air outlet condition, the noise of the compressor and the like of the air conditioning system. The lowest frequency is the lowest frequency of the compressor meeting the corresponding temperature interval, which is determined according to the refrigerating capacity and the indoor heat load condition of the air conditioning system.
Optionally, in step S103, the mobile air conditioner determines a target frequency of the compressor in the operating frequency region according to a difference between the detected temperature and the target temperature, including:
And under the condition that the difference value is smaller than or equal to the first temperature, the movable air conditioner determines that the target frequency of the compressor is the lowest frequency of the operation frequency interval.
And under the condition that the difference value is larger than the first temperature and smaller than or equal to the second temperature, the movable air conditioner determines that the target frequency of the compressor is the middle frequency of the operation frequency interval.
And under the condition that the difference value is larger than the second temperature, the mobile air conditioner determines that the target frequency of the compressor is the highest frequency of the operation frequency interval.
In the embodiment of the disclosure, the target frequency of the compressor is determined according to the difference value between the current indoor temperature and the target temperature and the magnitude of the temperature threshold. Specifically, the first temperature and the second temperature are set, and the difference value is divided. If the difference is less than or equal to the first temperature, it is indicated that the current indoor temperature is not much different from the target temperature. At this time, the compressor can be operated at a lower frequency, and the waste of resources is reduced while achieving the target temperature. In this case, the target frequency of the compressor is the lowest frequency of the operating frequency interval. If the difference is greater than the first temperature and less than or equal to the second temperature, a certain difference exists between the current indoor temperature and the target temperature. At this time, the intermediate frequency of the operation frequency interval is set as the target frequency. The intermediate frequency is the intermediate value of the running frequency interval, such as the frequency interval (80 Hz-100 Hz), and the intermediate frequency is 90Hz. The intermediate value is not an absolute intermediate value. If the difference is greater than the second temperature, indicating that the current indoor temperature differs significantly from the target temperature, the compressor is required to operate at a higher frequency if a rapid temperature adjustment is to be achieved. At this time, the highest frequency in the operation frequency range is set as the target frequency.
In some embodiments, a third temperature is also set for further dividing the intermediate frequency. Wherein the first temperature is less than the third temperature, and the third temperature is less than the second temperature. Thus, the difference is divided into four sections, and the middle two temperature sections correspond to one middle frequency respectively. Therefore, the target frequency of the compressor is more accurate, and the target temperature can be conveniently and quickly realized.
As shown in fig. 2, an embodiment of the present disclosure provides another control method for a mobile air conditioner, including:
s101, detecting the current indoor environment temperature by a temperature sensor.
S102, the mobile air conditioner determines the operation frequency interval of the corresponding compressor according to the detected temperature.
S103, the mobile air conditioner determines the target frequency of the compressor in the operation frequency interval according to the difference value between the detected temperature and the target temperature, and controls the operation target frequency of the compressor.
S204, the mobile air conditioner adjusts the operation frequency of the compressor according to the change condition of the difference value.
Here, after the compressor performs the target frequency for a long period of time, the difference between the indoor ambient temperature and the target temperature becomes gradually smaller. In this case, it is necessary to adjust the operating frequency of the compressor according to the difference change condition. Specifically, the indoor environment temperature is detected again, and a difference between the indoor environment temperature and the target temperature is obtained. And determining the target frequency of the compressor in the previous operation frequency interval again according to the difference value. The target frequency is taken as a new target frequency, and the operating frequency of the compressor is adjusted to the new target frequency. As an example, the indoor temperature section is divided into 9 sections as described above. The current indoor environment temperature is set to be 28 ℃, the refrigeration target temperature is set to be 24 ℃, the first temperature takes on 1 ℃, and the second temperature takes on 3 ℃. The current indoor environment temperature is in the temperature interval (27, 30), and the difference delta T=4 of the target temperature is (f 1, f 2), the difference is determined again after the target frequency of the compressor is f2. a period of time of the compressor operation according to the control logic, and the difference delta T=2 is set, according to the control logic, the operation frequency of the compressor after adjustment is determined to be the intermediate value f3. of the operation frequencies f1 and f2 until the operation frequency of the compressor after adjustment is adjusted to the lowest frequency f1 of the operation frequency interval.
As shown in fig. 3, an embodiment of the present disclosure provides another control method for a mobile air conditioner, including:
s101, detecting the current indoor environment temperature by a temperature sensor.
S102, the mobile air conditioner determines the operation frequency interval of the corresponding compressor according to the detected temperature.
S103, the mobile air conditioner determines the target frequency of the compressor in the operation frequency interval according to the difference value between the detected temperature and the target temperature, and controls the operation target frequency of the compressor.
S305, the mobile air conditioner obtains the wind gear change condition of the fan.
S306, under the condition that the wind gear of the fan is reduced, the movable air conditioner determines the frequency threshold value of the compressor corresponding to the current wind gear.
S307, the mobile air conditioner adjusts the operation frequency of the compressor according to the frequency threshold and the current operation frequency of the compressor.
In the embodiment of the disclosure, in the process of controlling the frequency of the compressor, the change condition of the wind shield of the fan needs to be detected. In general, in order to achieve rapid adjustment of indoor ambient temperature, the fan wind shield is typically the highest wind shield. If the wind shield changes, the system load will also change accordingly. Especially, when the wind speed becomes smaller, the wind speed is switched to a lower wind speed, and the system load increases. If the compressor frequency continues to operate at the previous frequency, instability in system operation is highly likely. Thus, the highest frequency at which the different wind speed compressors are allowed to operate, i.e. the frequency threshold, is set. When the wind gear becomes smaller, a frequency threshold of the compressor is determined. The frequency of the compressor is adjusted based on the frequency threshold and the current operating frequency of the compressor. Therefore, the frequency of the compressor is consistent with the system load, and the running stability of the system is ensured.
In addition, the change condition of the fan wind shield can be determined by detecting the rotating speed of the fan or by acquiring a control instruction of the fan wind shield from a controller.
Optionally, in step S306, the mobile air conditioner determines a frequency threshold of the compressor corresponding to the current wind gear, including:
and the mobile air conditioner determines the frequency threshold value of the compressor corresponding to the gear according to the indoor environment temperature and the gear of the current wind gear.
Here, the correspondence relationship of the indoor ambient temperature, the wind gear, and the compressor frequency threshold value may be set. Specifically, the indoor environment temperature is divided into different temperature intervals, and each temperature interval is provided with the highest frequency allowed by different wind fenders, namely a frequency threshold value. As shown in table 1.
TABLE 1
Note that the division of the temperature range in table 1 is not limited to this. The indoor ambient temperature may be divided into 9 zones as described above, with the highest frequency allowed being set for the wind profile for each temperature zone. In general, the temperature zone of the windshield is divided into a large temperature zone range. In general, the higher the wind shield, the higher the highest allowable frequency of the compressor in the same temperature interval. The higher the temperature indicated by the temperature interval, the higher the highest allowable frequency of the compressor for the same wind gear. The highest allowable frequency of the compressor refers to the operation frequency when the lowest refrigerating capacity meeting the refrigerating demand is achieved. It should be noted here that there is a risk of condensation when the mobile air conditioner is operating in a low wind regime. Therefore, the highest frequency allowed by the compressor in low wind speed is required to meet the minimum refrigerating capacity and avoid condensation caused by the excessively low temperature of the evaporator.
Optionally, in step S307, the mobile air conditioner adjusts the operation frequency of the compressor according to the frequency threshold and the current operation frequency of the compressor, including:
In the case that the frequency threshold is smaller than the current operating frequency of the compressor, the mobile air conditioner adjusts the operating frequency of the compressor to the frequency threshold.
In the case that the frequency threshold value is greater than or equal to the current operating frequency of the compressor, the mobile air conditioner maintains the operating frequency of the compressor.
Here, after the wind gear changes and the frequency threshold corresponding to the current wind gear is determined, it is determined whether the current running frequency exceeds the frequency threshold. If so, the operating frequency of the compressor is reduced. If not, the current operating frequency is maintained. Thus, not only can the indoor enough refrigerating capacity be ensured, but also the reliable operation of the system can be ensured.
As shown in fig. 4, an embodiment of the present disclosure provides another control method for a mobile air conditioner, including:
s101, detecting the current indoor environment temperature by a temperature sensor.
S102, the mobile air conditioner determines the operation frequency interval of the corresponding compressor according to the detected temperature.
S103, the mobile air conditioner determines the target frequency of the compressor in the operation frequency interval according to the difference value between the detected temperature and the target temperature, and controls the operation target frequency of the compressor.
S408, a temperature sensor detects the temperature of the condenser coil.
S409, controlling the compressor to reduce frequency by the mobile air conditioner when the temperature of the condenser coil is greater than or equal to the temperature threshold.
In the embodiment of the disclosure, a temperature sensor is arranged on the condenser coil and is used for detecting the temperature of the condenser coil. If the condenser coil temperature is high and the compressor frequency is unchanged, this can result in an increase in system load. In this case, it is necessary to control the compressor down-conversion to protect the system. In particular, frequency thresholds, such as a first frequency and a second frequency, may be set for defining the current frequency level of the compressor. Wherein the first frequency is greater than the second frequency. If the current frequency of the compressor is less than or equal to the second frequency, the compressor is controlled to downscale at the first rate. If the current frequency of the compressor is greater than the second frequency and less than or equal to the first frequency, the compressor is controlled to down-convert at the second rate. Wherein the first rate may take the value of 2Hz/s and the second rate may take the value of 10Hz/s.
In addition, in addition to detecting the temperature of the condenser coil, the discharge temperature of the compressor, the compressor current, etc. may also be detected. And setting corresponding threshold parameters, and controlling the compressor to reduce the frequency when the detection value is greater than or equal to the threshold parameters. The purpose of system protection is achieved through compressor frequency reduction.
As shown in fig. 5, an embodiment of the present disclosure provides a control device for a mobile air conditioner, including a detection module 51, a determination module 52, and a control module 53. The detection module 51 is configured to detect a current indoor ambient temperature; the determination module 52 is configured to determine an operating frequency interval of the corresponding compressor based on the detected temperature; the control module 53 is configured to determine a target frequency of the compressor in an operation frequency interval based on a difference between the detected temperature and the target temperature, and to control the operation target frequency of the compressor.
By adopting the control device for the mobile air conditioner provided by the embodiment of the disclosure, the operation frequency interval of the compressor corresponding to the indoor environment temperature is determined based on the current indoor environment temperature. Further, a more accurate compressor target frequency is determined within the determined operating frequency interval based on the difference between the target temperature and the current indoor ambient temperature. Therefore, the operation frequency of the compressor can be accurately controlled, and the goal temperature can be quickly reached. The working efficiency of the mobile air conditioner is improved, and the comfort of a user is improved.
As shown in connection with fig. 6, an embodiment of the present disclosure provides a control apparatus for a mobile air conditioner, including a processor (processor) 100 and a memory (memory) 101. Optionally, the apparatus may further comprise a communication interface (Communication Interface) 102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via the bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to perform the control method for the mobile air conditioner of the above-described embodiment.
Further, the logic instructions in the memory 101 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product.
The memory 101 is a computer readable storage medium that can be used to store a software program, a computer executable program, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, i.e., implements the control method for the mobile air conditioner in the above-described embodiment.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for a function; the storage data area may store data created according to the use of the terminal device, etc. Further, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides a mobile air conditioner, which comprises the control device for the mobile air conditioner.
The embodiment of the disclosure provides a storage medium storing computer executable instructions configured to perform the control method for a mobile air conditioner.
The storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.
Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this disclosure is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in the present disclosure, the terms "comprises," "comprising," and/or variations thereof, mean that the recited features, integers, steps, operations, elements, and/or components are present, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus that includes the element. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.
Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (8)
1. A control method for a mobile air conditioner, wherein the compressor of the mobile air conditioner is a variable frequency compressor, comprising:
detecting the current indoor environment temperature under the condition that the air conditioner is started;
Determining the operation frequency interval of the corresponding compressor according to the detected temperature;
determining the target frequency of the compressor in the operation frequency interval according to the difference value between the detected temperature and the target temperature, controlling the operation target frequency of the compressor, and controlling the fan to operate at the highest wind level;
Acquiring the change condition of a fan wind shield; under the condition that the wind gear of the fan is reduced, determining a frequency threshold value of the compressor corresponding to the current wind gear; according to the frequency threshold and the current operating frequency of the compressor, adjusting the operating frequency of the compressor; wherein, when the frequency threshold is smaller than the current operating frequency of the compressor, the operating frequency of the compressor is adjusted to the frequency threshold; in the case that the frequency threshold is greater than or equal to the current operating frequency of the compressor, the operating frequency of the compressor is maintained.
2. The method of claim 1, wherein determining the operating frequency interval of the corresponding compressor based on the detected temperature comprises:
determining an indoor environment temperature interval to which the detection temperature belongs;
and determining the operation frequency interval of the compressor corresponding to the detection temperature according to the mapping relation between the indoor environment temperature interval and the operation frequency interval of the compressor.
3. The method of claim 1, wherein determining a target frequency for the compressor in the operating frequency interval based on a difference between the detected temperature and the target temperature comprises:
under the condition that the difference value is smaller than or equal to the first temperature, determining the target frequency of the compressor as the lowest frequency of the operation frequency interval;
Under the condition that the difference value is larger than the first temperature and smaller than or equal to the second temperature, determining the target frequency of the compressor as the middle frequency of the operation frequency interval;
And under the condition that the difference value is larger than the second temperature, determining the target frequency of the compressor as the highest frequency of the operation frequency interval.
4. The method of claim 1, wherein determining the frequency threshold of the compressor corresponding to the current wind notch comprises:
And determining a frequency threshold value of the compressor corresponding to the gear according to the indoor environment temperature and the gear of the current wind gear.
5. The method according to any one of claims 1 to 4, further comprising:
detecting a temperature of the condenser coil;
And controlling the compressor to reduce the frequency under the condition that the temperature of the condenser coil is greater than or equal to a temperature threshold value.
6. A control apparatus for a mobile air conditioner comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the control method for a mobile air conditioner according to any one of claims 1 to 5 when the program instructions are executed.
7. A mobile air conditioner comprising the control device for a mobile air conditioner according to claim 6.
8. A storage medium storing program instructions which, when executed, perform the control method for a mobile air conditioner according to any one of claims 1 to 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210247832.8A CN114738949B (en) | 2022-03-14 | 2022-03-14 | Control method and device for mobile air conditioner and mobile air conditioner |
| PCT/CN2022/130510 WO2023173765A1 (en) | 2022-03-14 | 2022-11-08 | Method and apparatus for controlling mobile air conditioner, and mobile air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210247832.8A CN114738949B (en) | 2022-03-14 | 2022-03-14 | Control method and device for mobile air conditioner and mobile air conditioner |
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| CN114738949A CN114738949A (en) | 2022-07-12 |
| CN114738949B true CN114738949B (en) | 2024-05-24 |
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| CN114738949B (en) * | 2022-03-14 | 2024-05-24 | 青岛海尔空调器有限总公司 | Control method and device for mobile air conditioner and mobile air conditioner |
| CN115727514A (en) * | 2022-11-14 | 2023-03-03 | 中国联合网络通信集团有限公司 | Air conditioning equipment control method and device and readable storage medium |
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| CN114738949A (en) | 2022-07-12 |
| WO2023173765A1 (en) | 2023-09-21 |
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