CN105783201B - Air conditioner operation method - Google Patents
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- CN105783201B CN105783201B CN201610268955.4A CN201610268955A CN105783201B CN 105783201 B CN105783201 B CN 105783201B CN 201610268955 A CN201610268955 A CN 201610268955A CN 105783201 B CN105783201 B CN 105783201B
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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
- 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
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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
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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
- F24F2110/20—Humidity
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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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- 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
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- 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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Abstract
The invention discloses an air conditioner operation method, which comprises the following steps: judging whether the air conditioner meets the starting condition for executing the self-cleaning treatment; if the self-cleaning treatment function is met, the air conditioner starts the self-cleaning treatment function to perform self-cleaning treatment on the heat exchanger; the starting conditions for executing the self-cleaning treatment are as follows: meanwhile, the conditions that the accumulated operation time of the air conditioner is greater than the set accumulated operation time threshold value, the indoor environment temperature is greater than the set environment temperature and the air conditioner is in a shutdown state are met. By adopting the method, the problem that the product performance is influenced because the intellectualization degree of the air conditioner with the automatic heat exchanger cleaning function is insufficient in the prior art is solved.
Description
Technical Field
The invention belongs to the technical field of air conditioning, particularly relates to an air conditioner, and more particularly relates to an air conditioner operation method.
Background
After the air conditioner is placed or used for a long time, a large amount of dust and dirt exists in the air conditioner. The dust and dirt are attached to a heat exchanger of the indoor unit, so that on one hand, the heat exchange performance of the heat exchanger is reduced, and the performance of the air conditioner is reduced; on the other hand, the dust and dirt are easy to be attached to breed bacteria and form mildew, and the bacteria and the mildew can generate peculiar smell in the unit, if the peculiar smell is not cleaned in time, the health of the air conditioner user is seriously threatened.
In order to solve the problems caused by the attachment of dust and dirt on the heat exchanger of the air conditioner, the prior art adopts a technical means that condensed water is generated when the heat exchanger is used as an evaporator, and the dust and dirt on the surface of the heat exchanger are taken away by the condensed water, so that the heat exchanger of the air conditioner is automatically cleaned. When the heat exchanger of the indoor unit is used as an evaporator, the air conditioner needs to operate in a cooling mode, so that the automatic cleaning process of the air conditioner influences indoor air, particularly influences the comfort of indoor temperature. By analyzing the air conditioner having the automatic cleaning function in the related art, the judgment condition of whether it performs the automatic cleaning function is determined by including two: firstly, a user actively sends out a control instruction through a remote control or an air conditioner panel; secondly, the accumulated running time of the air conditioner reaches the set time.
Whether the automatic cleaning function is executed or not is determined by adopting one or two conditions, the influence of the forced air conditioner to operate the refrigeration mode easily causes discomfort of the indoor temperature and influences the comfort experience of the user, which is a pain point existing when the user uses the air conditioner at present and is also the key point that the complaint of the user is easily caused and the popularity of the product is not high.
Disclosure of Invention
The invention aims to provide an air conditioner operation method, which solves the problem that the product performance is influenced because the intellectualization degree of an air conditioner with a heat exchanger automatic cleaning function in the prior art is not enough.
In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:
a method of operating an air conditioner, the method comprising:
judging whether the air conditioner meets the starting condition for executing the self-cleaning treatment;
if the self-cleaning treatment function is met, the air conditioner starts the self-cleaning treatment function to perform self-cleaning treatment on the heat exchanger;
the starting conditions for executing the self-cleaning treatment are as follows:
meanwhile, the conditions that the accumulated operation time of the air conditioner is greater than the set accumulated operation time threshold value, the indoor environment temperature is greater than the set environment temperature and the air conditioner is in a shutdown state are met.
According to the air conditioner operation method, if the air conditioner does not meet the starting condition for executing the self-cleaning treatment, the air conditioner keeps the original working state unchanged.
Preferably, the set ambient temperature is 20 ℃.
In the above method for operating an air conditioner, the air conditioner starts a self-cleaning function to perform self-cleaning of the heat exchanger, and specifically includes:
the current operation condition of the air conditioner is judged, a self-cleaning program is executed according to a processing strategy corresponding to the current operation condition, water vapor in the air conditioner is condensed into liquid water by using a heat exchanger in the air conditioner, and self-cleaning treatment is carried out on the heat exchanger by using the liquid water.
The above air conditioner operation method, where the current operation condition is a heating condition, and the self-cleaning program is executed according to a processing strategy corresponding to the current operation condition, and a heat exchanger in the air conditioner is used to condense water vapor in the air conditioner into liquid water, and the liquid water is used to perform self-cleaning processing on the heat exchanger, specifically includes:
and switching the operation mode of the air conditioner to the refrigeration mode for operation, controlling the operation time to be not less than a first set operation time, condensing water vapor in the air conditioner into liquid water by using a heat exchanger in the air conditioner, and performing self-cleaning treatment on the heat exchanger by using the liquid water.
The above air conditioner operation method, where the current operation condition is a refrigeration condition, and the self-cleaning program is executed according to a processing strategy corresponding to the current operation condition, and a heat exchanger in the air conditioner is used to condense water vapor in the air conditioner into liquid water, and the liquid water is used to perform self-cleaning processing on the heat exchanger, specifically includes:
the air conditioner operates in a refrigeration mode, the operation time is controlled to be not less than a second set operation time, water vapor in the air conditioner is condensed into liquid water by using a heat exchanger in the air conditioner, and self-cleaning treatment is carried out on the heat exchanger by using the liquid water.
The above air conditioner operation method, where the self-cleaning program is executed according to the processing strategy corresponding to the current operation condition, specifically includes:
acquiring the current ambient temperature and the current ambient humidity of the room where the air conditioner is located, and determining the surface temperature of the heat exchanger for condensation as a target temperature;
and adjusting and maintaining the temperature of the heat exchanger at the target temperature by adjusting the rotating speed of a fan in the air conditioner and/or the working frequency of the compressor.
The air conditioner operation method includes the steps of obtaining the current ambient temperature and the current ambient humidity of the room where the air conditioner is located, determining the surface temperature of the heat exchanger for condensation, and using the surface temperature as a target temperature, and specifically includes:
determining the dew point temperature under the current environment according to the current environment temperature and the current environment humidity;
and determining the target temperature according to the dew point temperature under the current environment.
The method for operating an air conditioner according to the above, wherein determining the dew point temperature in the current environment according to the current environment temperature and the current environment humidity specifically includes:
determining the dew point temperature for the current environment according to the following formula: t = U (a + BT) + CT-D;
wherein T is dew point temperature, U is ambient humidity, T is ambient temperature, A, B, C and D are respectively a first regulating coefficient, a second regulating coefficient, a third regulating coefficient and a fourth regulating coefficient.
In the above method for operating an air conditioner, the determining the target temperature according to the dew point temperature in the current environment specifically includes:
determining a target temperature for the current environment according to the following formula: teva = t- Δ t;
wherein Teva is a target temperature, t is a dew point temperature, and delta t is a target temperature difference between the dew point temperature and the heat exchanger; and the target temperature difference is a set value or is obtained by matching in a known heat exchange temperature difference table according to the current environment temperature.
Compared with the prior art, the invention has the advantages and positive effects that: the invention sets the starting condition for executing the self-cleaning treatment, only executes the self-cleaning treatment of the heat exchanger when the starting condition is met and the self-cleaning is needed, the starting conditions comprise that the accumulated running time of the air conditioner reaches the set accumulated running time, the air conditioner is in a shutdown state, and the indoor environment temperature is higher than the set environment temperature, namely, the self-cleaning treatment of the heat exchanger is executed only under the condition that the indoor environment temperature is higher and the air conditioner is in the shutdown state, so that the problem that the user comfort experience is influenced due to the fact that the indoor temperature is uncomfortable because the air conditioner executes the self-cleaning treatment is effectively avoided, the problem that the user comfort experience is influenced due to the fact that the normal running process of the air conditioner is influenced due to the fact that the self-cleaning treatment process is executed is also avoided, the performance of the air conditioner is improved, and the user satisfaction degree is also improved; moreover, the self-cleaning treatment is started without manual operation of a user, so that the intelligent degree of the air conditioner is improved, and the use convenience of the user is improved.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a flow chart of one embodiment of a method of operating an air conditioner of the present invention;
fig. 2 is a specific flowchart of the self-cleaning process performed in the heat exchanger of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, a flow chart of an embodiment of an air conditioner operation method according to the present invention is shown.
As shown in fig. 1, the process of implementing the operation method of the air conditioner in this embodiment includes the following steps:
step 11: it is determined whether the air conditioner satisfies a starting condition for performing the self-cleaning process.
Wherein, the starting conditions for executing the self-cleaning treatment are as follows: meanwhile, the conditions that the accumulated operation time of the air conditioner is greater than the set accumulated operation time threshold value, the indoor environment temperature is greater than the set environment temperature and the air conditioner is in a shutdown state are met.
That is, it is determined that the start-up condition for executing the self-cleaning process is satisfied only if the above three conditions are satisfied at the same time.
With the development of the cloud server technology and the intelligent air conditioner technology, the three conditions can be realized through the intelligent technology without the participation of a user. The accumulated running time of the air conditioner can be obtained by counting the running time of the air conditioner through a cloud server intelligently connected with the air conditioner, the indoor environment temperature can be obtained by an output signal of a temperature sensor which is arranged indoors, connected with the cloud server and capable of uploading a temperature detection signal through the cloud server, and the shutdown state of the air conditioner can also be obtained by monitoring the running state of the air conditioner through the cloud server. Therefore, the cloud server can conveniently acquire the accumulated running time of the air conditioner, the indoor environment temperature and the shutdown state of the air conditioner. Then, by previously storing the set cumulative operation time threshold and the set ambient temperature in the cloud server, the cloud server can determine whether the above three conditions are simultaneously satisfied at any time, and confirm that the start condition for executing the self-cleaning process is satisfied when it is determined that the three conditions are simultaneously satisfied.
The set operation time threshold may be a fixed value, and is preferably a value that can be adaptively changed according to different seasons or the current operation condition of the air conditioner. For example, if the operation condition is winter or heating operation, the operation time threshold value is set to be a first operation time threshold value, and if the operation condition is summer or cooling operation, the operation time threshold value is set to be a second operation time threshold value, and the first operation time threshold value is smaller than the second operation time threshold value.
For setting the ambient temperature, 20 ℃ is preferable in view of user comfort.
Step 12: if the self-cleaning treatment function is met, the air conditioner starts the self-cleaning treatment function to perform self-cleaning treatment of the heat exchanger.
That is, when the conditions that the accumulated operation time of the air conditioner is greater than the set accumulated operation time threshold, the indoor environment temperature is greater than the set environment temperature, and the air conditioner is in the shutdown state are simultaneously satisfied, if it is determined that the starting condition for executing the self-cleaning processing is satisfied, the air conditioner is controlled to automatically start the self-cleaning processing function, and the self-cleaning processing of the heat exchanger is executed.
Wherein the process of performing the self-cleaning process of the heat exchanger can be implemented by using the method of the prior art. As a preferred embodiment, the method is implemented by using a specific process shown in fig. 2, which is described in detail in fig. 2 later.
In this embodiment, for the three start-up conditions for performing the self-cleaning process, the accumulated operation time of the air conditioner reflects the dust deposition degree of the heat exchanger in the air conditioner, the indoor ambient temperature reflects the comfort degree of the current indoor temperature, and the shutdown state of the air conditioner reflects the operation demand condition of the user for the air conditioner. Then, by taking the three parameters as condition judgment parameters and utilizing the judgment relation as a judgment condition, the self-cleaning treatment of the heat exchanger can be executed under the conditions that dust and dirt are accumulated on the heat exchanger, the indoor environment temperature is high and the air conditioner is not used by a user, the whole judgment process and the self-cleaning treatment process can be completely and automatically realized without the participation of the user in the treatment, the problem of energy consumption caused by the fact that the self-cleaning treatment is not required to be executed blindly is solved, the problems that the indoor temperature is uncomfortable due to the execution of the self-cleaning treatment and the normal operation process of the air conditioner is influenced by the execution of the self-cleaning treatment process so as to influence the comfort experience of the user are also effectively solved, the product performance and the intelligent degree of the air conditioner are improved, and the use satisfaction degree and the convenience.
If it is determined in step 11 that the air conditioner does not satisfy the starting condition for performing the self-cleaning process, the air conditioner keeps the original operation state unchanged.
Referring to fig. 2, a specific flow chart of the heat exchanger of fig. 1 is shown.
As shown in fig. 2, the process of implementing the self-cleaning treatment of the heat exchanger of this embodiment includes the following steps:
step 121: and judging the current operation condition of the air conditioner, and executing a self-cleaning program according to a processing strategy corresponding to the current operation condition.
Specifically, the current operation condition of the air conditioner is judged, a self-cleaning program is executed according to a processing strategy corresponding to the current operation condition, water vapor in the air conditioner is condensed into liquid water by using a heat exchanger in the air conditioner, and self-cleaning processing is carried out on the heat exchanger by using the liquid water.
The current operation condition of the air conditioner can be a refrigeration condition, a heating condition, an air supply operation condition, a dehumidification operation condition and the like. The current operation condition of the air conditioner can be obtained by parameters such as indoor/outdoor environment temperature, indoor/outdoor environment humidity and the like and the known corresponding relation between the parameters and the operation condition. Based on the communication between the intelligent air conditioner and the cloud server, the current operation condition can be monitored and acquired through the cloud server. Based on the method, when the air conditioner starts the self-cleaning treatment function and executes the self-cleaning treatment of the heat exchanger, the current operation working condition of the air conditioner is firstly judged, and corresponding cleaning strategies are respectively carried out on different operation working conditions, so that the cleaning effect meeting different operation working conditions is ensured.
For example, if it is determined that the current operation condition of the air conditioner is a heating condition, the strategy for executing the self-cleaning process is as follows: and switching the operation mode of the air conditioner to the refrigeration mode for operation, controlling the operation time to be not less than a first set operation time, condensing water vapor in the air conditioner into liquid water by using a heat exchanger in the air conditioner, and performing self-cleaning treatment on the heat exchanger by using the liquid water. In addition, since the normal operation mode of the air conditioner is a heating mode in a heating condition and a heat exchanger in the indoor unit is a condenser, condensed water is not generated, and thus self-cleaning is not performed in the heating mode. Therefore, the first set operation time is a longer one, and the control operation time is longer when the self-cleaning process is performed, so that the heat exchanger in the indoor unit is thoroughly self-cleaned for a long time.
If the current operation condition of the air conditioner is judged to be a refrigeration condition, the strategy for executing self-cleaning treatment is as follows: the air conditioner operates in a refrigeration mode, the operation time is controlled to be not less than a second set operation time, water vapor in the air conditioner is condensed into liquid water by using a heat exchanger in the air conditioner, and self-cleaning treatment is carried out on the heat exchanger by using the liquid water. Because the normal operation mode of the air conditioner is a refrigeration mode or a dehumidification mode under the refrigeration working condition, and the heat exchanger in the indoor unit is an evaporator, condensed water is generated in the normal operation process, and partial self-cleaning can be performed. Therefore, the second set operation time is a time value smaller than the first set operation time, and the control operation time is shorter when the self-cleaning process is performed, so that more thorough self-cleaning can be realized with lower power consumption.
The self-cleaning procedure is executed according to the processing strategy corresponding to the current operating condition, which may be implemented by the following processes of step 122 and step 123.
Step 122: the method comprises the steps of obtaining the current ambient temperature and the current ambient humidity of the indoor space where the air conditioner is located, determining the surface temperature of the heat exchanger used for condensation and taking the surface temperature as a target temperature.
The current environment temperature and the current environment humidity refer to indoor environment temperature and indoor environment relative humidity which are acquired in real time when the self-cleaning processing program is started; the target temperature determined according to the current ambient temperature and the current ambient humidity may be a temperature point or a temperature interval.
As a preferred embodiment, firstly, determining the dew point temperature under the current environment according to the current environment temperature and the current environment humidity; then, a target temperature of the heat exchanger for condensation is determined according to the dew point temperature under the current environment.
Specifically, the dew point temperature refers to a temperature required for converting water vapor in the air conditioner into liquid water under the current environment. Due to the fact that the dew point temperature is different due to the pressure, the temperature, the humidity and the like in the environment, the dew point temperature in the current environment needs to be analyzed and determined. In addition, the atmospheric pressure in the ambient air is stable for the user, and therefore, the main factors influencing the dew point temperature are the ambient temperature and the ambient humidity. Thus, as a preferred embodiment, the dew point temperature at the current environment may be determined according to the following equation: t = U (a + BT) + CT-D. In the formula, T is dew point temperature, U is ambient humidity, T is ambient temperature, and A, B, C and D are a first adjustment coefficient, a second adjustment coefficient, a third adjustment coefficient and a fourth adjustment coefficient, respectively. Preferably, the value ranges of the first adjustment coefficient a, the second adjustment coefficient B and the third adjustment coefficient C are 0-1, so as to reduce the calculation error. For example, the first adjustment coefficient a takes a value of 0.198, the second adjustment coefficient B takes a value of 0.0017, and the third adjustment coefficient C takes a value of 0.84. And the value of the fourth adjustment coefficient D ranges from 15 to 25, for example, 19.2 is selected.
After calculating the dew point temperature t, the target temperature in the current environment is preferably determined using the following formula: teva = t- Δ t. In the formula, Teva is a target temperature, t is a dew point temperature, and delta t is a temperature difference between the dew point temperature and a target temperature of the heat exchanger. Preferably, the target temperature difference Δ t is a set value or is obtained by matching in a known heat exchange temperature difference table according to the current ambient temperature. Considering the heat exchange condition under the general condition, the target temperature difference delta t is selected to be in the range of 3-15 ℃. Preferably, Δ t is 8 ℃. In addition, a target temperature difference can be obtained through matching of the heat exchange temperature difference table. In this case, a correspondence table of the ambient temperature and the target temperature difference is stored in advance, for example, the ambient temperature is greater than 30 ℃, and the corresponding target temperature difference is 6 ℃; the ambient temperature is in the range of 20-30 deg.c, corresponding to a target temperature difference of 8 deg.c. Then, the target temperature difference matching the current ambient temperature is found from the correspondence table and assigned to Δ t.
The dew point temperature under the current environment is determined according to the environment temperature and the environment humidity, and the calculated dew point temperature is used for determining the surface temperature of the heat exchanger for condensation and is used as the target temperature, so that the accuracy and reliability of the obtained target temperature can be ensured, and enough condensate water can be obtained in a short time to carry out self-cleaning of the heat exchanger.
Step 123: the temperature of the heat exchanger is adjusted and maintained at a target temperature by adjusting the rotational speed of a fan and/or the operating frequency of a compressor in the air conditioner.
The method comprises the following steps that the current actual surface temperature of the heat exchanger is monitored in real time, and when the monitored current actual surface temperature is higher than a target temperature, the surface temperature of the heat exchanger is reduced by adjusting the rotating speed of a fan and/or the working frequency of a compressor; when the monitored current actual surface temperature is lower than the target temperature, the surface temperature of the heat exchanger is increased by adjusting the rotating speed of the fan and/or the working frequency of the compressor; and when the monitored current actual surface temperature meets the target temperature, the surface temperature of the heat exchanger is kept unchanged by adjusting the rotating speed of the fan and/or the working frequency of the compressor.
Therefore, the surface temperature of the heat exchanger is adjusted in a short time and maintained at the optimal target temperature by adjusting the rotating speed of the fan and/or the frequency of the compressor, so that the quick self-cleaning and self-adaptive adjustment of the heat exchanger are achieved, and the self-cleaning effect of the heat exchanger is ensured.
Specifically, when the monitored current actual surface temperature of the heat exchanger is greater than the target temperature, an adjustment mode of reducing the rotation speed of the fan and/or increasing the working frequency of the compressor can be adopted, so that the surface temperature of the heat exchanger is reduced. If the monitored current actual surface temperature of the heat exchanger is less than the target temperature, an adjusting mode of increasing the rotating speed of the fan and/or reducing the working frequency of the compressor can be adopted, so that the surface temperature of the heat exchanger is increased. And when the monitored current actual surface temperature meets the target temperature, maintaining the current rotating speed of the fan and/or the current working frequency of the compressor unchanged.
By adopting the adjustment, the air conditioner can automatically adjust the surface temperature of the heat exchanger to the target temperature, so that automatic adjustment is realized, and the cleaning effect is ensured.
By adopting the self-cleaning treatment process of the embodiment, the factors influencing the formation of the condensed water are analyzed, the optimal temperature of the heat exchanger for condensing the water vapor under the current environment is determined by reading the environment temperature and the current environment humidity, the heating or cooling of the heat exchanger is realized by adjusting the rotating speed of the fan of the indoor unit and/or the working frequency of the compressor, the actual surface temperature of the heat exchanger is maintained at the determined optimal temperature, so that enough condensed water is formed to ensure the effect of cleaning the dust and dirt on the surface of the heat exchanger, the minimum energy consumption is realized, and the energy conservation of the air conditioner is realized.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (9)
1. A method of operating an air conditioner, the method comprising:
judging whether the air conditioner meets the starting condition for executing the self-cleaning treatment;
if the self-cleaning treatment function is met, the air conditioner starts the self-cleaning treatment function to perform self-cleaning treatment on the heat exchanger;
the starting conditions for executing the self-cleaning treatment are as follows:
meanwhile, the conditions that the accumulated operation time of the air conditioner is greater than a set accumulated operation time threshold value, the indoor environment temperature is greater than a set environment temperature and the air conditioner is in a shutdown state are met;
if the air conditioner does not meet the starting condition for executing the self-cleaning treatment, the air conditioner keeps the original working state unchanged;
the set accumulated operation time threshold value is adaptively changed according to different seasons or the current operation condition of the air conditioner, if the set accumulated operation time threshold value is a first operation time threshold value in winter or a heating operation condition, and if the set accumulated operation time threshold value is a second operation time threshold value in summer or a cooling operation condition, the first operation time threshold value is smaller than the second operation time threshold value.
2. The air conditioner operation method according to claim 1, wherein the set ambient temperature is 20 ℃.
3. An operation method of an air conditioner according to claim 1 or 2, wherein the air conditioner starts a self-cleaning function to perform a self-cleaning process of a heat exchanger, and specifically comprises:
the current operation condition of the air conditioner is judged, a self-cleaning program is executed according to a processing strategy corresponding to the current operation condition, water vapor in the air conditioner is condensed into liquid water by using a heat exchanger in the air conditioner, and self-cleaning treatment is carried out on the heat exchanger by using the liquid water.
4. The method according to claim 3, wherein the current operating condition is a heating condition, the self-cleaning procedure is performed according to a processing strategy corresponding to the current operating condition, the heat exchanger in the air conditioner is utilized to condense water vapor in the air conditioner into liquid water, and the liquid water is utilized to perform self-cleaning on the heat exchanger, and specifically the method comprises:
and switching the operation mode of the air conditioner to the refrigeration mode for operation, controlling the operation time to be not less than a first set operation time, condensing water vapor in the air conditioner into liquid water by using a heat exchanger in the air conditioner, and performing self-cleaning treatment on the heat exchanger by using the liquid water.
5. The method according to claim 3, wherein the current operating condition is a cooling condition, the self-cleaning procedure is performed according to a processing strategy corresponding to the current operating condition, the heat exchanger in the air conditioner is utilized to condense water vapor in the air conditioner into liquid water, and the liquid water is utilized to perform self-cleaning processing on the heat exchanger, specifically comprising:
the air conditioner operates in a refrigeration mode, the operation time is controlled to be not less than a second set operation time, water vapor in the air conditioner is condensed into liquid water by using a heat exchanger in the air conditioner, and self-cleaning treatment is carried out on the heat exchanger by using the liquid water.
6. The air conditioner operation method according to claim 3, wherein the executing of the self-cleaning program according to the processing strategy corresponding to the current operation condition specifically comprises:
acquiring the current ambient temperature and the current ambient humidity of the room where the air conditioner is located, and determining the surface temperature of the heat exchanger for condensation as a target temperature;
and adjusting and maintaining the temperature of the heat exchanger at the target temperature by adjusting the rotating speed of a fan in the air conditioner and/or the working frequency of the compressor.
7. The air conditioner operation method according to claim 6, wherein the acquiring a current ambient temperature and a current ambient humidity of an indoor space where the air conditioner is located, and determining a surface temperature of the heat exchanger for condensation as a target temperature specifically comprises:
determining the dew point temperature under the current environment according to the current environment temperature and the current environment humidity;
and determining the target temperature according to the dew point temperature under the current environment.
8. The air conditioner operation method according to claim 7, wherein the determining a dew point temperature in a current environment according to the current ambient temperature and the current ambient humidity specifically comprises:
determining the dew point temperature for the current environment according to the following formula: t = U (a + BT) + CT-D;
wherein T is dew point temperature, U is ambient humidity, T is ambient temperature, A, B, C and D are respectively a first regulating coefficient, a second regulating coefficient, a third regulating coefficient and a fourth regulating coefficient.
9. The air conditioner operation method according to claim 7, wherein the determining the target temperature according to the dew point temperature in the current environment specifically includes:
determining a target temperature for the current environment according to the following formula: teva = t- Δ t;
wherein Teva is a target temperature, t is a dew point temperature, and delta t is a target temperature difference between the dew point temperature and the heat exchanger; and the target temperature difference is a set value or is obtained by matching in a known heat exchange temperature difference table according to the current environment temperature.
Priority Applications (1)
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| CN106403163B (en) * | 2016-08-31 | 2020-03-06 | 广东美的制冷设备有限公司 | Air conditioner and cleaning control method thereof |
| CN106403160B (en) * | 2016-08-31 | 2019-08-27 | 广东美的制冷设备有限公司 | Air conditioner and its cleaning control method |
| CN106352447B (en) * | 2016-08-31 | 2020-05-05 | 广东美的制冷设备有限公司 | Air conditioner and cleaning control method thereof |
| CN106679111B (en) * | 2017-01-23 | 2020-04-14 | 深圳创维空调科技有限公司 | Automatic cleaning treatment method and system for heat exchanger of air conditioner |
| CN107642866B (en) * | 2017-08-28 | 2020-04-14 | 青岛海尔空调器有限总公司 | Air conditioner self-cleaning control method and device |
| CN110873391A (en) * | 2018-08-31 | 2020-03-10 | 青岛海尔空调器有限总公司 | Air conditioner and self-cleaning control method thereof |
| CN115076878A (en) * | 2022-05-30 | 2022-09-20 | 青岛海尔空调器有限总公司 | Air conditioner external unit self-cleaning method and device, computer readable storage medium and air conditioner |
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