CN111457549A - Control method of air conditioner - Google Patents
Control method of air conditioner Download PDFInfo
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- CN111457549A CN111457549A CN202010275894.0A CN202010275894A CN111457549A CN 111457549 A CN111457549 A CN 111457549A CN 202010275894 A CN202010275894 A CN 202010275894A CN 111457549 A CN111457549 A CN 111457549A
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- refrigerant
- current indoor
- temperature
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- air conditioner
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- 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
- 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
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The invention discloses a control method of an air conditioner, which comprises the following steps: controlling the starting of the compressor; judging whether the refrigerant has a primary leakage risk or not; if yes, acquiring the current indoor temperature and the set temperature; judging whether the difference value between the current indoor temperature and the set temperature is smaller than a first preset value or not; if yes, controlling the compressor to operate. The air conditioner according to the embodiment of the invention can give consideration to both user use and compressor protection against refrigerant leakage.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner.
Background
In the related art, such as an air conditioner using a fixed frequency compressor, there is generally a method of detecting and judging whether there is a leakage of a refrigerant, in which case the safety of the air conditioner is secured by stopping the operation of the compressor.
Specifically, the temperature sensor is usually only arranged in the indoor unit, and the temperature sensor detects the temperature of the indoor coil or whether the refrigerant leaks due to the ambient temperature, and the difference of the indoor coil temperature is obvious due to various environments in which the air conditioner actually operates, especially in certain high-humidity areas; in addition, the coil temperature of the split indoor unit is distributed at the elbow position of the evaporator, most of the evaporator elbow sides are located above or on the side of the indoor motor, and when the indoor coil is affected by the heat radiation of the motor, the actual detected coil temperature can deviate, so that erroneous judgment is caused.
Therefore, the existing control method for refrigerant leakage only emphasizes and protects the compressor, which easily causes the compressor to stop in advance under the condition of reliable operation, and influences the use of users.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide a control method of an air conditioner capable of considering both user use and compressor protection against refrigerant leakage.
In order to achieve the above object, a control method of an air conditioner according to an embodiment of the present invention includes: controlling the starting of the compressor; judging whether the refrigerant has a primary leakage risk or not; if yes, acquiring the current indoor temperature and the set temperature; judging whether the difference value between the current indoor temperature and the set temperature is smaller than a first preset value or not; if yes, controlling the compressor to operate.
The control method of the air conditioner according to the embodiment of the invention can give consideration to both user use and compressor protection against refrigerant leakage.
According to some embodiments of the present invention, the determining whether the refrigerant has a primary leakage risk includes: judging whether the at least one refrigerant has a secondary leakage risk; and if the judgment result of each time indicates that the refrigerant has a secondary leakage risk, judging that the refrigerant has a primary leakage risk.
According to some embodiments of the present invention, each determination of whether the refrigerant is at risk of a secondary leak includes: judging whether the refrigerant has a three-stage leakage risk or not at least once; and if the judgment result of each time indicates that the refrigerant has a three-stage leakage risk, judging that the refrigerant has a two-stage leakage risk.
According to some embodiments of the present invention, each time the refrigerant is judged to have a risk of three-stage leakage, the method comprises: the method comprises the steps that after the compressor is started and operates for a first preset time, the current indoor temperature and the current indoor heat exchanger temperature are obtained; judging whether the difference value between the acquired current indoor temperature and the acquired current indoor heat exchanger temperature is smaller than a second preset value or not; and if so, judging that the refrigerant has a three-stage leakage risk.
According to some embodiments of the present invention, the number of times of determining whether the refrigerant has the risk of the tertiary leak is multiple times, and the interval between two adjacent determinations is a second preset time.
According to some embodiments of the present invention, the number of times of judging whether the refrigerant has the secondary leakage risk is multiple times, when the single judgment result indicates that the secondary leakage risk exists, the compressor is controlled to stop, when the refrigerant is judged whether the secondary leakage risk exists next time, the compressor is controlled to restart, and the judgment interval between two adjacent times is a third preset time.
According to some embodiments of the present invention, if it is determined that there is a risk of a first-stage leakage of the refrigerant, the compressor is controlled to stop for a fourth preset time and then to restart for a fifth preset time, so as to obtain the current indoor temperature and the set temperature.
According to some embodiments of the present invention, if it is determined that the difference between the current indoor temperature and the set temperature is greater than or equal to the first preset value, at least one current indoor temperature and at least one current indoor heat exchanger temperature are obtained; judging whether the difference value between the current indoor temperature and the current indoor heat exchanger temperature at the same time is smaller than a third preset value; and if the difference value between the current indoor temperature and the current indoor heat exchanger temperature is smaller than the third preset value in each judgment result, controlling the compressor to stop.
According to some embodiments of the present invention, the current indoor temperature and the current indoor heat exchanger temperature are obtained for a plurality of times, and the obtaining interval between two adjacent times is a sixth preset time.
According to some specific embodiments of the present invention, if the difference between the current indoor temperature and the current indoor heat exchanger temperature is smaller than the third preset value in each determination result, the compressor is controlled to stop, and a refrigerant leakage prompt is sent.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention.
Fig. 2 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention to determine whether there is a risk of a primary leakage of refrigerant.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, "a plurality" means two or more, and "several" means one or more.
A control method of an air conditioner according to an embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1, a control method of an air conditioner according to an embodiment of the present invention includes:
controlling the compressor to start, and operating the air conditioner in a refrigeration mode;
judging whether the refrigerant has a primary leakage risk or not;
if yes, acquiring the current indoor temperature T0 and the set temperature TSetting up；
Judging the current indoor temperature T0 and the set temperature TSetting upWhether the difference is less than a first predetermined value T1 is provided(e.g., 2 ℃);
if T0-TSetting up＜T1 is providedControlling the compressor to operate.
Wherein the set temperature TSetting upThe set temperature T is the target temperature input into the air conditioner by a userSetting upThe setting can be realized by a mobile phone, a remote controller or air conditioner keys and the like.
Controlling the operation of the compressor refers to normal operation of the air conditioner, namely, the air conditioner controls the start and stop of the compressor through the current indoor temperature T0.
According to the control method of the air conditioner, after the primary leakage risk of the refrigerant is detected, the current indoor temperature T0 and the set temperature T are judgedSetting upWhether the difference is less than a first predetermined value T1 is providedDue to the first preset value T1 is providedSmaller, i.e. the current indoor temperature T0 and the set temperature TSetting upWhen the difference value is small, even if the air conditioner leaks a little, the refrigerating effect of the air conditioner can still meet the user requirement, and the air conditioner does not stop to report faults, so that the user requirement is met. .
Also, as a result of determining whether there is a risk of a primary leakage of the refrigerant, there is a possibility that the determination may be made erroneously due to an error in the detection device and the determination device of the air conditioner, and therefore, the current indoor temperature T0 and the set temperature T are determined additionallySetting upWhether the difference is less than a first predetermined value T1 is providedThe accuracy of judging the refrigerant leakage degree of the air conditioner can be further ensured.
In this way, the control method of the air conditioner according to the embodiment of the present invention can achieve both user use and compressor protection against refrigerant leakage.
According to some embodiments of the present invention, as shown in fig. 2, the determining whether the refrigerant has a first-stage leakage risk includes:
judging whether the at least one refrigerant has a secondary leakage risk;
and if the judgment result of each time indicates that the refrigerant has a secondary leakage risk, judging that the refrigerant has a primary leakage risk.
In other words, the determining whether the refrigerant has the primary leakage risk includes determining whether the refrigerant has the secondary leakage risk one or more times.
And if the judgment result of each time is that the refrigerant has the secondary leakage risk, judging that the refrigerant has the primary leakage risk, and if one judgment result is that the refrigerant does not have the secondary leakage risk, judging that the refrigerant does not have the primary leakage risk. Therefore, misjudgment of the leakage degree of the refrigerant is avoided, and the air conditioner is prevented from stopping due to misjudgment of the compressor.
For example, as shown in fig. 2, the first preset value X2 is the number of times that it is necessary to determine whether the refrigerant has a risk of secondary leakage, and N2 is the number of times that it has been determined that the refrigerant has a risk of secondary leakage. When N2 is equal to X2, it has been determined that X2 times the refrigerant is at risk of a secondary leak. Wherein, the second preset value X2 is a natural number greater than 0.
According to some embodiments of the present invention, as shown in fig. 2, each time the refrigerant is determined to have a secondary leakage risk, the method includes:
judging whether the refrigerant has a three-stage leakage risk or not at least once;
and if the judgment result of each time indicates that the refrigerant has a three-stage leakage risk, judging that the refrigerant has a two-stage leakage risk.
In other words, the judging whether the refrigerant has the secondary leakage risk includes judging whether the refrigerant has the tertiary leakage risk one or more times.
And if the judgment result of each time is that the refrigerant has the risk of three-level leakage, judging that the refrigerant has the risk of two-level leakage, and if one judgment result is that the refrigerant does not have the risk of three-level leakage, judging that the refrigerant does not have the risk of two-level leakage. Therefore, misjudgment of the leakage degree of the refrigerant is avoided, and the air conditioner is prevented from stopping due to misjudgment of the compressor.
For example, as shown in fig. 2, the first preset value X1 is the number of times that it is necessary to determine whether there is a risk of three-stage leakage of refrigerant, and N1 is the number of times that it has been determined that there is a risk of three-stage leakage of refrigerant. When N1 is equal to X1, it has been determined that X1 times there is a risk of a three-stage leak in the refrigerant. The first preset value X1 is a natural number greater than 0.
According to some embodiments of the present invention, as shown in fig. 2, each time the determination of whether there is a risk of three-stage leakage of the refrigerant includes:
after the compressor operates for a first preset time T1 after being started, acquiring a current indoor temperature T0 and a current indoor heat exchanger temperature T1;
judging whether the difference value between the acquired current indoor temperature T0 and the current indoor heat exchanger temperature T1 is smaller than a second preset value TLet 2；
If T0-T1 < TLet 2It is determined that there is a risk of a three-stage leakage of the refrigerant.
Wherein the first preset time T1 may be 20 minutes, and the second preset value TLet 2May be 2 deg.c.
When the refrigerant leaks, the refrigerant cannot pass through the indoor heat exchanger, and the temperature of the indoor heat exchanger cannot be reduced when the air conditioner refrigerates, so that after the compressor is started and operates for a first preset time T1, the previous indoor temperature T0 is still relatively close to the current indoor heat exchanger temperature T1, and the refrigerant can be judged to have a risk of three-level leakage.
And, the current indoor temperature T0 and the set temperature T are judged by increasingSetting upWhether the difference is less than a first predetermined value T1 is providedThe temperature abnormality of the detection device for detecting the current indoor heat exchanger temperature T1 (for example, the temperature abnormality caused by the damage of the detection device, the temperature drift or the heat radiation influence of the motor of the indoor unit of the air conditioner) can be reduced, or the temperature detection caused by the falling of the detection device is inaccurate, so that the misjudgment is avoided.
According to some embodiments of the present invention, as shown in fig. 2, the number of times of judging whether the refrigerant has the risk of the three-stage leakage is multiple times, and the interval between two adjacent times of judging is the second preset time t 2. Wherein the second preset time t2 may be 10 seconds.
Therefore, the accuracy of judgment of whether the refrigerant has the secondary leakage risk or not can be ensured by judging whether the refrigerant has the tertiary leakage risk or not for multiple times. And the acquisition interval of two adjacent times is set as a second preset time t2, so that the accuracy of judging whether the refrigerant has the risk of three-stage leakage every time is ensured.
According to some embodiments of the present invention, as shown in fig. 2, the number of times of judging whether the refrigerant has the risk of the secondary leakage is multiple times, when the single judgment result shows that the risk of the secondary leakage exists, the compressor is controlled to stop, when the next judgment result shows that the risk of the secondary leakage exists, the compressor is controlled to restart, and the judgment interval between two adjacent times is a third preset time t 3. Wherein each of the third preset times t3 may be 3 minutes.
The start-up operation time of the compressor may be the same or different each time it is judged whether there is a risk of the secondary leakage of the refrigerant, for example, it is judged 3 times whether there is a risk of the secondary leakage of the refrigerant, and the start-up operation time of the compressor is 20 minutes, 15 minutes, and 10 minutes, respectively.
Therefore, the accuracy of judgment of whether the refrigerant has the secondary leakage risk or not can be ensured by judging whether the refrigerant has the tertiary leakage risk or not for multiple times. And in addition, between two adjacent times of judging whether the refrigerant has the secondary leakage risk, the compressor is stopped for the third preset time T3 and then started, so that the interference of the temperature of the compressor to the current indoor temperature T0 and the current indoor heat exchanger temperature T1 is reduced, and the accuracy of judging whether the refrigerant has the secondary leakage risk is improved.
According to some embodiments of the present invention, as shown in fig. 1, if it is determined that there is a primary leakage risk in the refrigerant, the compressor is controlled to be stopped for a fourth preset time T4 (e.g., 3 minutes) and then restarted for a fifth preset time T5 (e.g., 80 minutes), and the current indoor temperature T0 and the set temperature T are obtainedSetting up。
Thus, the current indoor temperature T0 and the set temperature T are obtainedSetting upPreviously, the air conditioner is enabled to normally operate (namely the air conditioner controls the start and stop of the compressor to adjust the indoor temperature) for a fifth preset time T5, so that the air conditioner can better adjust the indoor temperature, the refrigeration effect of the air conditioner can be better shown, and the judgment of the current indoor temperature T0 and the set temperature T are addedSetting upWhether the difference is less than a first predetermined value T1 is providedThe accuracy of (2).
According to some embodiments of the present invention, as shown in fig. 1, if the current indoor temperature T0 and the set temperature T are determinedSetting upIs greater than or equal to the first preset value T1 is providedIf yes, acquiring at least one current indoor temperature T0 and current indoor heat exchanger temperature T1;
judging whether the difference value between the current indoor temperature T0 and the current indoor heat exchanger temperature T1 at the same time is less than a third preset value TLet 3；
If the difference value between the current indoor temperature T0 and the current indoor heat exchanger temperature T1 is smaller than the third preset value TLet 3And controlling the compressor to stop.
In other words, if the difference between the current indoor temperature T0 and the current indoor heat exchanger temperature T1 is not less than the third preset value T as a result of the first determinationLet 3The compressor is not stopped.
Here, the current indoor temperature T0 and the current indoor heat exchanger temperature T1 are acquired at least once, that is, the current indoor temperature T0 and the current indoor heat exchanger temperature T1 are acquired one or more times.
For example, as shown in fig. 1, the third preset value X3 is a value that it needs to be determined that the difference between the current indoor temperature T0 and the current indoor heat exchanger temperature T1 at the same time is smaller than the third preset value TLet 3N3 is that the difference between the current indoor temperature T0 and the current indoor heat exchanger temperature T1 at the same time has been judged to be less than the third preset value TLet 3The number of times. When N3 is equal to X3, it has been determined that the difference between the current indoor temperature T0 and the current indoor heat exchanger temperature T1 for X3 times is less than the third preset value TLet 3. Wherein, the third preset value X3 is a natural number greater than 0.
Therefore, the probability of the compressor stopping is reduced, and the compressor stopping caused by the misjudgment or when the refrigerating effect of the air conditioner can meet the requirement of a user is prevented.
According to some embodiments of the present invention, as shown in fig. 1, the current indoor temperature T0 and the current indoor heat exchanger temperature T1 are acquired a plurality of times, and the acquisition interval of two adjacent times is a sixth preset time T6. Wherein, the sixth preset time t6 may be 10 seconds. By setting the acquisition interval of two adjacent times to the sixth preset time T6, the accuracy of acquiring the current indoor temperature T0 and the current indoor heat exchanger temperature T1 can be ensured, and the detected temperature is prevented from being inaccurate.
According to some embodiments of the present invention, as shown in fig. 1, if the current indoor temperature T0 and the current indoor heat exchanger temperature T1 are both less than the third preset value T each time the determination result is obtainedLet 3(e.g., 2 c), the compressor is controlled to shut down and a refrigerant leak indication is issued. Otherwise, if the current indoor temperature T0 and the current indoor heat exchanger temperature T1 are not less than the third preset value T in the first judgment resultLet 3(e.g., 2 deg.c), the compressor is controlled not to stop and no indication of refrigerant leakage is given.
Wherein the refrigerant leakage indication may be displayed through a display panel of an indoor unit of the air conditioner. Therefore, the user can be reminded that the air conditioner has refrigerant leakage, and the air conditioner cannot achieve the state of meeting the requirement due to the refrigerant leakage, so that the compressor can be protected.
The following describes a control method of an air conditioner according to an embodiment of the present invention by way of example, taking the cooling state of the air conditioner as an example.
After the compressor is started for 20 minutes, detecting the temperature of T0 and T1, taking the temperature every 10 seconds, continuously comparing for 3 times, and stopping the compressor when the temperature is T0-T1 is less than 2 ℃;
the compressor is stopped for 3 minutes and then started, after 15 minutes, the temperature of T0 and T1 is detected, the temperature is taken every 10 seconds, continuous 3 times of comparison occur, and when the temperature is less than 2 ℃ from T0 to T1, the compressor is stopped;
the compressor is stopped for 3 minutes and then started, after 10 minutes, the temperature of T0 and T1 is detected, the temperature is taken every 10 seconds, continuous 3 times of comparison occur, and when the temperature is less than 2 ℃ from T0 to T1, the compressor is stopped;
the operation is started again after the press is stopped for 3 minutes, the air conditioner normally operates for 80 minutes, and within the 80 minutes, when the time is T0-TSetting upIf the temperature is lower than 2 ℃, the air conditioner normally operates; otherwise, after 80 minutes, detecting the temperature of T0 and T1, counting every 10 seconds, continuously comparing for 3 times, and when the temperature is T0-T1 < 2 ℃, stopping the compressor and giving out a refrigerant leakage prompt.
Other configurations of air conditioners according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of "a particular embodiment," "a particular example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A method of controlling an air conditioner, comprising:
controlling the starting of the compressor;
judging whether the refrigerant has a primary leakage risk or not;
if yes, acquiring the current indoor temperature and the set temperature;
judging whether the difference value between the current indoor temperature and the set temperature is smaller than a first preset value or not;
if yes, controlling the compressor to operate.
2. The control method of an air conditioner according to claim 1, wherein said judging whether there is a primary leakage risk of the refrigerant includes:
judging whether the at least one refrigerant has a secondary leakage risk;
and if the judgment result of each time indicates that the refrigerant has a secondary leakage risk, judging that the refrigerant has a primary leakage risk.
3. The control method of an air conditioner according to claim 2, wherein each time it is judged whether there is a risk of secondary leakage of the refrigerant, comprising:
judging whether the refrigerant has a three-stage leakage risk or not at least once;
and if the judgment result of each time indicates that the refrigerant has a three-stage leakage risk, judging that the refrigerant has a two-stage leakage risk.
4. The control method of an air conditioner according to claim 3, wherein each time it is judged whether there is a risk of a three-stage leakage of the refrigerant, comprising:
the method comprises the steps that after the compressor is started and operates for a first preset time, the current indoor temperature and the current indoor heat exchanger temperature are obtained;
judging whether the difference value between the acquired current indoor temperature and the acquired current indoor heat exchanger temperature is smaller than a second preset value or not;
and if so, judging that the refrigerant has a three-stage leakage risk.
5. The control method of an air conditioner according to claim 4, wherein the number of times of judging whether there is a risk of a tertiary leak of the refrigerant is plural times, and a judgment interval between two adjacent times is a second preset time.
6. The control method of the air conditioner according to claim 2, wherein the number of times of judging whether the refrigerant has the risk of the secondary leakage is multiple times, when the single judgment result shows that the risk of the secondary leakage exists, the compressor is controlled to stop, when the refrigerant is judged to have the risk of the secondary leakage next time, the compressor is controlled to restart, and the judgment interval between two adjacent times is a third preset time.
7. The control method of the air conditioner according to any one of claims 1 to 6, wherein if it is judged that there is a risk of a primary leakage of the refrigerant, the compressor is controlled to stop for a fourth preset time and then to restart for a fifth preset time, and the current indoor temperature and the set temperature are obtained.
8. The control method of an air conditioner according to claim 7, wherein if it is judged that the difference between the current indoor temperature and the set temperature is greater than or equal to the first preset value, at least one current indoor temperature and a current indoor heat exchanger temperature are acquired;
judging whether the difference value between the current indoor temperature and the current indoor heat exchanger temperature at the same time is smaller than a third preset value;
and if the difference value between the current indoor temperature and the current indoor heat exchanger temperature is smaller than the third preset value in each judgment result, controlling the compressor to stop.
9. The control method of an air conditioner according to claim 8, wherein the current indoor temperature and the current indoor heat exchanger temperature are acquired a plurality of times, and an acquisition interval of two adjacent times is a sixth preset time.
10. The control method of the air conditioner according to claim 8, wherein if the difference between the current indoor temperature and the current indoor heat exchanger temperature is less than the third preset value as a result of each judgment, the compressor is controlled to stop and a refrigerant leakage prompt is issued.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432212A (en) * | 2021-06-30 | 2021-09-24 | 海信（广东）空调有限公司 | Method of controlling dehumidifier, and computer-readable storage medium |
| CN113432240A (en) * | 2021-06-30 | 2021-09-24 | 海信（广东）空调有限公司 | Method and device for detecting refrigerant leakage, air conditioner and storage medium |
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| CN113432212A (en) * | 2021-06-30 | 2021-09-24 | 海信（广东）空调有限公司 | Method of controlling dehumidifier, and computer-readable storage medium |
| CN113432240A (en) * | 2021-06-30 | 2021-09-24 | 海信（广东）空调有限公司 | Method and device for detecting refrigerant leakage, air conditioner and storage medium |
| WO2023273270A1 (en) * | 2021-06-30 | 2023-01-05 | 海信（广东）空调有限公司 | Method for detecting refrigerant leak, air conditioner, and storage medium |
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