CN111121244A - Control method and device of air conditioner and air conditioner - Google Patents
Control method and device of air conditioner and air conditioner Download PDFInfo
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- CN111121244A CN111121244A CN201911397594.3A CN201911397594A CN111121244A CN 111121244 A CN111121244 A CN 111121244A CN 201911397594 A CN201911397594 A CN 201911397594A CN 111121244 A CN111121244 A CN 111121244A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005057 refrigeration Methods 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000009977 dual effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012351 Integrated analysis Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- F24F2140/40—Damper positions, e.g. open or closed
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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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- General Engineering & Computer Science (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method and a device of an air conditioner and the air conditioner, wherein an indoor unit of the air conditioner comprises two fans, and the control method comprises the following steps: acquiring the running states of the two fans, and determining the running upper limit frequency of a compressor of the air conditioner according to the running states; acquiring an indoor environment temperature and a set target temperature, and calculating a temperature difference value between the indoor environment temperature and the target temperature; and controlling the actual operation frequency of the compressor according to the temperature difference and the operation upper limit frequency. The invention determines the upper limit frequency of the compressor through the running state of the indoor fan, controls the actual running frequency of the compressor according to the temperature difference between the environmental temperature and the target temperature, and does not influence the reliability of the refrigeration system while ensuring the refrigeration and heating comfort of the air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and device of an air conditioner and the air conditioner.
Background
With the gradual maturity of air conditioning technology and the higher and higher requirement of more and more users on comfort level, the air conditioner with double fans becomes the mainstream product in the market.
The upper limit of the frequency operation of the compressor of the outdoor unit of the air conditioner is related to the wind shield of the indoor unit, and when the indoor unit is provided with two fans and can be independently controlled, if the two fans are controlled according to the lowest wind shield, the refrigerating and heating comfort of the air conditioner can be influenced; if control two fans according to the highest wind shelves, then the compressor operating frequency is on the high side, and condensation problem or refrigerating system reliability problem appear easily in lower wind shelves, it can be seen that the operating frequency to the compressor can't be controlled rationally and intelligently to the air conditioner of double fan among the prior art.
Thus, there is still a need for improvement and development of the prior art.
Disclosure of Invention
The present invention provides a method and an apparatus for controlling an air conditioner, and an air conditioner, aiming to solve the problem that the air conditioner with two fans cannot reasonably and intelligently control the operating frequency of a compressor in the prior art.
The technical scheme adopted by the invention for solving the technical problem is as follows:
in a first aspect, the present invention provides a method for controlling an air conditioner, where an indoor unit of the air conditioner includes two fans, where the method includes:
acquiring the running states of the two fans, and determining the running upper limit frequency of a compressor of the air conditioner according to the running states;
acquiring indoor environment temperature and a set target temperature, and calculating a temperature difference between the environment temperature and the target temperature;
and controlling the actual operation frequency of the compressor according to the temperature difference and the operation upper limit frequency.
In one embodiment, the determining the upper limit frequency of operation of the compressor according to the operation state includes:
acquiring numbers corresponding to the operating states of the two fans according to a preset number comparison table, wherein the number comparison table is preset and is used for reflecting the number corresponding to each operating state;
and determining a number average value according to the number, and determining the operation upper limit frequency of the compressor corresponding to the number average value according to a preset frequency comparison table, wherein the frequency comparison table is used for reflecting the corresponding relation between the number average value and the operation upper limit frequency.
In one embodiment, the operational state includes: the two fans are in a shutdown state or a startup state; the machine states of the two fans comprise wind gear positions of the two fans.
In one embodiment, the number of the two fans in the shutdown state is 0; and the serial numbers of the two fans in the starting state are increased along with the increase of the gear of the wind gear.
In an embodiment, the determining a number average value according to the number and determining an operation upper limit frequency of the compressor corresponding to the number average value according to a preset frequency comparison table includes:
calculating the average value of the serial numbers according to the serial numbers corresponding to the running states of the two indoor fans;
and comparing and matching the number average value with the frequency comparison table, and determining a frequency value corresponding to the number average value from the frequency comparison table, wherein the frequency value is the upper limit frequency of the compressor corresponding to the number average value.
In one embodiment, the determining a numbered average from the number comprises:
and when the number average value has decimal place, rounding the number average value by utilizing a rounding principle.
In one embodiment, said controlling an actual operating frequency of said compressor based on said temperature difference and said upper operating limit frequency comprises:
comparing the temperature difference value with a preset first threshold value;
if the temperature difference is greater than or equal to the first threshold, controlling the actual operation frequency of the compressor to be the operation upper limit frequency;
and if the temperature difference is smaller than the first threshold value, adjusting the actual operating frequency of the compressor.
In one embodiment, the adjusting the actual operating frequency of the compressor includes:
acquiring the change rate of the indoor environment temperature, and comparing the change rate with a preset second threshold value;
if the change rate is greater than or equal to the second threshold, controlling the actual operating frequency of the compressor to be an original operating frequency under a first preset proportion, wherein the original operating frequency is the operating frequency of the last operation of the compressor;
and if the change rate is smaller than the second threshold value, controlling the actual operating frequency of the compressor to be the original operating frequency under a second preset proportion.
In a second aspect, the present invention further provides a control device for an air conditioner, where an indoor unit of the air conditioner includes two fans, where the control device includes:
the operation state acquisition unit is used for acquiring the operation states of the two fans and determining the operation upper limit frequency of the compressor of the air conditioner according to the operation states;
the temperature difference acquisition unit is used for acquiring indoor environment temperature and set target temperature and calculating the temperature difference between the environment temperature and the target temperature;
and the operation frequency control unit is used for controlling the actual operation frequency of the compressor according to the temperature difference and the operation upper limit frequency.
In a third aspect, the present invention further provides an air conditioner, which is characterized in that the air conditioner includes the air conditioner control device in the above aspect.
The invention has the technical effects that: the invention determines the upper limit frequency of the compressor through the running state of the indoor fan, controls the actual running frequency of the compressor according to the temperature difference between the environmental temperature and the target temperature, and does not influence the reliability of the refrigeration system while ensuring the refrigeration and heating comfort of the air conditioner.
Drawings
Fig. 1 is a flowchart of a control method of an air conditioner according to the present invention.
Fig. 2 is a functional block diagram of an air conditioner control device according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The problem that the running frequency of a compressor cannot be reasonably and intelligently controlled by an air conditioner with double fans in the prior art is solved. The invention provides a control method of an air conditioner, wherein an indoor unit of the air conditioner in the embodiment comprises two fans, and as shown in fig. 1 specifically, the method comprises the following steps:
s100, acquiring the running states of two fans, and determining the running upper limit frequency of a compressor of the air conditioner according to the running states;
s200, acquiring an indoor environment temperature and a set target temperature, and calculating a temperature difference between the environment temperature and the target temperature;
and step S300, controlling the actual operation frequency of the compressor according to the temperature difference and the operation upper limit frequency.
In this embodiment, the air conditioner has two fans, that is, a dual fan air conditioner. Specifically, the air conditioner is provided with two air channels, each air channel is provided with a fan, the fan is used for guiding airflow to be discharged from an air outlet of the air conditioner through the air channels, the airflow can be airflow before or after heat exchange of a heat exchanger, and the two cross-flow air channels can be symmetrically arranged. In an embodiment, the fan may be a cross-flow fan, and the corresponding air conditioner may be a dual cross-flow cabinet air conditioner having two air outlets. In other embodiments, the number of the fans may be more than two.
In specific implementation, the operation states of two fans in an indoor unit are acquired, then the acquired operation states are analyzed, and the operation upper limit frequency of the compressor (namely, the maximum frequency representing the allowable operation of the compressor) is determined according to the operation states. Then, the indoor environment temperature and the set target temperature are further obtained, the temperature difference between the environment temperature and the target temperature is calculated according to the indoor environment temperature and the target temperature, and finally the actual operation frequency of the compressor is controlled according to the temperature difference and the obtained operation upper limit frequency of the compressor.
Specifically, the operation state in this embodiment includes: the two fans are in a shutdown state or a startup state; the machine states of the two fans comprise wind gear positions of the two fans. For example, the wind gear positions of the indoor fan include a mute gear, a low wind gear, a medium and high wind gear, and the high wind gear … …. And after the running states of the two fans in the indoor unit are obtained, obtaining the numbers corresponding to the running states according to a preset number comparison table. In one embodiment, the number comparison table is a preset number used for reflecting a number corresponding to each operating state, and in the number comparison table, the number of each fan in the shutdown state is 0; and the serial numbers of the two fans in the starting state are increased along with the increase of the gear of the wind gear. For example, the number corresponding to the mute level is 1, the number corresponding to the low level is 2, the number corresponding to the medium-low level is 3, the number corresponding to the medium-low level is 4, the number corresponding to the medium-high level is 5, and the number corresponding to the high level is 6 … …. And after obtaining the numbers corresponding to the running states of the two fans, determining the average value of the numbers according to the numbers, and determining the running upper limit frequency of the compressor corresponding to the average value of the numbers according to a preset frequency comparison table.
In one embodiment, the frequency comparison table is configured to reflect a correspondence between the number average value and the operation upper limit frequency, frequency values corresponding to different number average values are set in the frequency comparison table, after the number average value is calculated according to numbers corresponding to operation states of two fans, the number average value is compared and matched with the frequency comparison table, a frequency value corresponding to the number average value is determined from the frequency comparison table, and the frequency value is the operation upper limit frequency of the compressor corresponding to the number average value. For example, when the operating state of one of the fans is a low wind gear, the corresponding number is 2; when the operating state of the other fan is acquired to be a high wind gear, the corresponding number is 6; the calculated average value of the numbers is (2+ 6)/2-4, and then the frequency value corresponding to 4 is looked up in the frequency comparison table, so that the upper limit frequency of the compressor is determined.
In one embodiment, the frequency values corresponding to different numbers in the frequency lookup table may be set fixed values, and the fixed values may be set according to the rated operating power H of the compressor. For example, if the rated operating power H of the compressor is 60 to 90HZ (which is identified on a nameplate on the compressor), the frequency value corresponding to the number 1 (silent range) is 50% H, the frequency value corresponding to the number 2 (low wind range) is 55% H, the frequency value corresponding to the number 3 (medium-low wind range) is 65% H, the frequency value corresponding to the number 4 (medium wind range) is 90% H, the frequency value corresponding to the number 5 (medium wind range) is 95% H, and the frequency value corresponding to the number 6 (high wind range) is H, as shown in table 1.
In a further embodiment, when the number average is calculated to have decimal places, the number average is rounded using a rounding principle. For example, when the operating state of one of the fans is a low wind gear, the corresponding number is 2; when the operating state of the other fan is the middle and high wind gear, the corresponding number is 5; the calculated average value of the numbers is (2+5)/2 is 3.5, and the number is rounded according to the rounding principle, so that the average value of the numbers is also 4, and the corresponding frequency value is further obtained according to the frequency comparison table.
Further, after the operation upper limit frequency of the compressor is determined, the obtained environment temperature and the set target temperature are obtained, and the temperature difference value is determined according to the environment temperature and the target temperature. The indoor environment temperature in this embodiment is obtained from a preset temperature sensor. The target temperature is set by the user according to the requirement of the user. After the temperature difference is obtained, the temperature difference is compared with a preset first threshold, where the first threshold in this embodiment is used to measure a difference between the indoor environment temperature and a target temperature set by a user, and the first threshold is set autonomously, for example, the first threshold is set to be 3 ℃. If the temperature difference is greater than or equal to the first threshold, it indicates that the difference between the indoor environment temperature and the target temperature set by the user is too large, and therefore, in order to enable the indoor environment temperature to reach the target temperature set by the user as soon as possible, the actual operation frequency of the compressor needs to be controlled to be the operation upper limit frequency, so that the compressor can work at the operation upper limit frequency, the indoor environment temperature can reach the target temperature set by the user as soon as possible, and the working efficiency is improved. And if the temperature difference is smaller than the first threshold, it indicates that the difference between the indoor ambient temperature and the target temperature set by the user is small, and the actual operating frequency of the compressor needs to be further adjusted. For example, if the indoor temperature is 32 ℃, the target temperature set by the user is 28 ℃, and thus the temperature difference is 4 ℃. If the first threshold is 3 ℃, and therefore, the temperature difference is greater than the first threshold, it indicates that the difference between the indoor environment temperature and the target temperature set by the user is too large, and the actual operation frequency of the compressor needs to be controlled to be the operation upper limit frequency, so that the indoor environment temperature reaches the target temperature set by the user as soon as possible. If the obtained indoor temperature is 30 ℃ and the target temperature set by the user is 28 ℃, the temperature difference is 2 ℃, the first threshold value is 3 ℃, and the temperature difference is smaller than the first threshold value, which indicates that the difference between the indoor environment temperature and the target temperature set by the user is smaller, the actual operation frequency of the compressor needs to be further adjusted.
Further, the present embodiment further adjusts the actual operating frequency of the compressor by further analyzing the indoor ambient temperature. Specifically, the rate of change of the ambient temperature within the chamber for a preset time is obtained by a preset temperature sensor, and then the rate of change is compared with a preset second threshold value. The second threshold in this embodiment is used to measure how fast the indoor ambient temperature changes. The second threshold may also be set autonomously, for example, the second threshold is set to 1 ℃/min. If the change rate is greater than or equal to the second threshold value, it indicates that the change of the indoor environment temperature is rapid, and the actual operation frequency of the compressor is controlled to be the original operation frequency under a first preset proportion, and the original operation frequency is the operation frequency of the last operation of the compressor. For example, if it is obtained that the indoor temperature changes from 32 ℃ to 30 ℃ within 1 minute, the change rate of the indoor ambient temperature is 2 ℃/min, and the second threshold is 1 ℃/min, so that the change rate is greater than the second threshold, which indicates that the change of the indoor ambient temperature is rapid, and therefore, the actual operating frequency of the compressor is controlled to be the original operating frequency at the first preset ratio. If the last operation frequency of the compressor is 70HZ, the actual operation frequency of the compressor may be controlled to be 70HZ at 50% (i.e., a first predetermined ratio), i.e., 70HZ x 50%. And if the change rate is smaller than the second threshold value, indicating that the change of the indoor environment temperature is slow, and controlling the actual operation frequency of the compressor to be the original operation frequency under a second preset proportion. For example, if it is obtained that the indoor temperature is changed from 32 ℃ to 30 ℃ within 5 minutes, the change rate of the indoor ambient temperature is 0.4 ℃/min, and the second threshold is 1 ℃/min, so that the change rate is smaller than the second threshold, which indicates that the change of the indoor ambient temperature is slow, the actual operating frequency of the compressor is controlled to be the original operating frequency at the second preset proportion, that is, the actual operating frequency of the compressor is controlled to be 70HZ at 30% (i.e., the first preset proportion), that is, 70HZ is 30 HZ.
Therefore, the embodiment can comprehensively analyze the running states of the two fans in the indoor unit and the environmental temperature and target temperature so as to realize reasonable and intelligent control on the actual running frequency of the compressor, and the reliability of the refrigerating system is not influenced while the refrigerating and heating comfort of the air conditioner is ensured.
Based on the above embodiment, the present invention further provides an air conditioner control device, specifically as shown in fig. 2, an indoor unit of the air conditioner includes two fans, and the control device includes: an operation state acquisition unit 210, a temperature difference value acquisition unit 220, and an operation frequency control unit 230. Specifically, the operation state obtaining unit 210 is configured to obtain operation states of two fans, and determine an operation upper limit frequency of a compressor of the air conditioner according to the operation states. The temperature difference obtaining unit 220 is configured to obtain an indoor environment temperature and a set target temperature, and determine a temperature difference according to the indoor environment temperature and the target temperature. The operation frequency control unit 230 is configured to control an actual operation frequency of the compressor according to the temperature difference and the operation upper limit frequency.
Based on the above embodiment, the present invention further provides an air conditioner, which includes the air conditioner control device in the above embodiment. The air conditioner of this embodiment will come the integrated analysis according to running state and ambient temperature and the target temperature these factors of two fans in the indoor set to the realization carries out reasonable and intelligent control to the actual operating frequency of compressor, does not influence refrigerating system reliability when guaranteeing air conditioner refrigeration and heating travelling comfort.
In summary, the present invention discloses a control method and device for an air conditioner, and an air conditioner, wherein an indoor unit of the air conditioner includes two fans, and the control method includes: acquiring the running states of the two fans, and determining the running upper limit frequency of a compressor of the air conditioner according to the running states; acquiring an indoor environment temperature and a set target temperature, and calculating a temperature difference value between the indoor environment temperature and the target temperature; and controlling the actual operation frequency of the compressor according to the temperature difference and the operation upper limit frequency. The invention determines the upper limit frequency of the compressor through the running state of the indoor fan, controls the actual running frequency of the compressor according to the temperature difference between the environmental temperature and the target temperature, and does not influence the reliability of the refrigeration system while ensuring the refrigeration and heating comfort of the air conditioner. .
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. A control method of an air conditioner is characterized in that an indoor unit of the air conditioner comprises two fans, and the control method comprises the following steps:
acquiring the running states of the two fans, and determining the running upper limit frequency of a compressor of the air conditioner according to the running states;
acquiring an indoor environment temperature and a set target temperature, and calculating a temperature difference value between the indoor environment temperature and the target temperature;
and controlling the actual operation frequency of the compressor according to the temperature difference and the operation upper limit frequency.
2. The control method of an air conditioner according to claim 1, wherein the determining of the operation upper limit frequency of the compressor of the air conditioner according to the operation state includes:
acquiring numbers corresponding to the operating states of the two fans according to a preset number comparison table, wherein the number comparison table is preset and is used for reflecting the number corresponding to each operating state;
and determining a number average value according to the number, and determining the operation upper limit frequency of the compressor corresponding to the number average value according to a preset frequency comparison table, wherein the frequency comparison table is used for reflecting the corresponding relation between the number average value and the operation upper limit frequency.
3. The control method of an air conditioner according to claim 2, wherein the operation state includes: the two fans are in a shutdown state or a startup state; the machine states of the two fans comprise wind gear positions of the two fans.
4. The control method of an air conditioner according to claim 3, wherein the number of the two fans in the off state is 0; and the serial numbers of the two fans in the starting state are increased along with the increase of the gear of the wind gear.
5. The method for controlling an air conditioner according to claim 3, wherein the determining a number average value according to the number and determining an operation upper limit frequency of the compressor corresponding to the number average value according to a preset frequency comparison table comprises:
calculating the average value of the serial numbers according to the serial numbers corresponding to the running states of the two indoor fans;
and comparing and matching the number average value with the frequency comparison table, and determining a frequency value corresponding to the number average value from the frequency comparison table, wherein the frequency value is the upper limit frequency of the compressor corresponding to the number average value.
6. The method of claim 5, wherein the determining a number average value according to the number comprises:
and when the number average value has decimal place, rounding the number average value by utilizing a rounding principle.
7. The control method of an air conditioner according to claim 1, wherein said controlling an actual operating frequency of the compressor according to the temperature difference value and the operating upper limit frequency comprises:
comparing the temperature difference value with a preset first threshold value;
if the temperature difference is greater than or equal to the first threshold, controlling the actual operation frequency of the compressor to be the operation upper limit frequency;
and if the temperature difference is smaller than the first threshold value, adjusting the actual operating frequency of the compressor.
8. The method of claim 7, wherein the adjusting the actual operating frequency of the compressor comprises:
acquiring the change rate of the indoor environment temperature, and comparing the change rate with a preset second threshold value;
if the change rate is greater than or equal to the second threshold, controlling the actual operating frequency of the compressor to be an original operating frequency under a first preset proportion, wherein the original operating frequency is the operating frequency of the last operation of the compressor;
and if the change rate is smaller than the second threshold value, controlling the actual operating frequency of the compressor to be the original operating frequency under a second preset proportion.
9. The utility model provides an air conditioner controlling means, the indoor set of air conditioner contains two fans, its characterized in that, controlling means includes:
the operation state acquisition unit is used for acquiring the operation states of the two fans and determining the operation upper limit frequency of the compressor of the air conditioner according to the operation states;
the temperature difference acquisition unit is used for acquiring indoor environment temperature and set target temperature and calculating the temperature difference between the environment temperature and the target temperature;
and the operation frequency control unit is used for controlling the actual operation frequency of the compressor according to the temperature difference and the operation upper limit frequency.
10. An air conditioner characterized by comprising the air conditioner control device according to claim 9.
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| CN201911397594.3A CN111121244A (en) | 2019-12-30 | 2019-12-30 | Control method and device of air conditioner and air conditioner |
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| CN201911397594.3A CN111121244A (en) | 2019-12-30 | 2019-12-30 | Control method and device of air conditioner and air conditioner |
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Cited By (6)
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| CN111878972A (en) * | 2020-07-21 | 2020-11-03 | 滁州普利斯特软件有限公司 | Control method capable of improving energy efficiency and air conditioner |
| CN112524764A (en) * | 2020-12-03 | 2021-03-19 | 佛山市顺德区美的电子科技有限公司 | Air conditioner, control method and device thereof and storage medium |
| CN112730972A (en) * | 2020-12-18 | 2021-04-30 | 珠海格力电器股份有限公司 | Method for estimating compressor power and refrigeration equipment electric quantity |
| CN112944592A (en) * | 2021-02-09 | 2021-06-11 | 格力电器（武汉）有限公司 | Control method of air conditioning system |
| CN114811829A (en) * | 2022-04-13 | 2022-07-29 | 青岛海尔空调器有限总公司 | Body-sensing-temperature-based variable frequency control method and device, air conditioner and storage medium |
| WO2024016653A1 (en) * | 2022-07-19 | 2024-01-25 | 广东美的制冷设备有限公司 | Air conditioner and control method and apparatus therefor, and storage medium and electronic device |
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| CN112730972A (en) * | 2020-12-18 | 2021-04-30 | 珠海格力电器股份有限公司 | Method for estimating compressor power and refrigeration equipment electric quantity |
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| CN114811829A (en) * | 2022-04-13 | 2022-07-29 | 青岛海尔空调器有限总公司 | Body-sensing-temperature-based variable frequency control method and device, air conditioner and storage medium |
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