CN114838494A - Method and device for preventing condensation of air conditioner, air conditioner and storage medium - Google Patents
Method and device for preventing condensation of air conditioner, air conditioner and storage medium Download PDFInfo
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- 230000005494 condensation Effects 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000005485 electric heating Methods 0.000 claims abstract description 84
- 238000010438 heat treatment Methods 0.000 claims description 42
- 239000000126 substance Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 10
- 230000002265 prevention Effects 0.000 abstract description 10
- 230000006870 function Effects 0.000 description 12
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- 238000004891 communication Methods 0.000 description 7
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- 238000007664 blowing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/009—Indoor units, e.g. fan coil units characterised by heating arrangements
- F24F1/0093—Indoor units, e.g. fan coil units characterised by heating arrangements with additional radiant heat-discharging elements, e.g. electric heaters
-
- 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
- F24F11/38—Failure diagnosis
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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
- F24F11/52—Indication arrangements, e.g. displays
- F24F11/526—Indication arrangements, e.g. displays giving audible indications
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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
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
-
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The application relates to the technical field of intelligent household appliances, and discloses a method for preventing condensation of an air conditioner, wherein the air conditioner comprises an outdoor fresh air pipe, an electric heating device is arranged at an air inlet of the outdoor fresh air pipe, and the method comprises the following steps: acquiring fresh air temperature, indoor temperature and indoor humidity; determining indoor dew point temperature according to indoor temperature and indoor humidity; and controlling the operation of the electric heating device and/or the fresh air machine according to the fresh air temperature and the indoor dew point temperature. And judging whether the indoor fresh air pipe has the possibility of generating condensation or not based on the fresh air temperature and the indoor dew point temperature, thereby controlling the operation of the electric heating device and/or the fresh air machine. When the indoor fresh air pipe does not produce condensation, the operation of the electric heating device and/or the fresh air fan is controlled to prevent the condensation, and the condensation prevention effect is improved. The application also discloses a device, an air conditioner and a storage medium for preventing condensation of the air conditioner.
Description
Technical Field
The application relates to the technical field of intelligent household appliances, in particular to a method and a device for preventing condensation of an air conditioner, the air conditioner and a storage medium.
Background
When the air conditioner runs the fresh air function in winter, the temperature in the indoor fresh air pipe is lower due to lower outdoor temperature. Will produce more condensation on the indoor new tuber pipe, will lead to the air conditioner to blow water and the problem of dripping to take place like this.
The related technology discloses a control method for preventing condensation at an air outlet of an air conditioner, which comprises the following steps: determining whether condensation exists in the target area according to the detected data, wherein the data is any one of the following data: the air conditioner comprises an air conditioner operation time, temperature data of an indoor environment where the air conditioner is located, temperature data of an outdoor environment where the air conditioner is located and humidity data of the indoor environment where the air conditioner is located, wherein the target area is an area of a preset surface where outlet air of the lower air outlet can reach; in the event that it is determined that there is condensation within the target area, controlling operation of the air conditioner to eliminate the condensation using a predetermined control strategy, wherein the predetermined control strategy includes at least one of: the air outlet speed of the fan in the air conditioner is increased, the heating belt arranged on the lower air outlet panel is opened, the compression frequency of the compressor of the air conditioner is reduced, the compressor is closed, and the lower air outlet is closed.
In the method, under the condition that condensation is generated in the target area, the condensation is eliminated by controlling parameters such as the wind speed of the fan, the heating band, the frequency of the compressor and the like, and a good prevention effect cannot be achieved.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a method and a device for preventing condensation of an air conditioner, the air conditioner and a storage medium, so as to improve the condensation prevention effect.
In some embodiments, the air conditioner includes an outdoor fresh air duct having an electric heating device disposed at an air inlet thereof, and the method includes: acquiring fresh air temperature, indoor temperature and indoor humidity; determining indoor dew point temperature according to indoor temperature and indoor humidity; and controlling the operation of the electric heating device and/or the fresh air machine according to the fresh air temperature and the indoor dew point temperature.
In some embodiments, the apparatus comprises: a processor and a memory storing program instructions, the processor configured to, upon execution of the program instructions, perform the aforementioned method for air conditioner anti-condensation.
In some embodiments, the air conditioner includes: the device for preventing condensation of the air conditioner is described above.
In some embodiments, the storage medium stores program instructions that, when executed, perform the aforementioned method for air conditioner condensation prevention.
The method and the device for preventing condensation of the air conditioner, the air conditioner and the storage medium provided by the embodiment of the disclosure can realize the following technical effects:
and judging whether the indoor fresh air pipe has the possibility of generating condensation or not based on the fresh air temperature and the indoor dew point temperature, thereby controlling the operation of the electric heating device and/or the fresh air machine. On one hand, the fresh air is heated by controlling the electric heating device under the condition that condensation is possibly generated, so that the condition that the temperature of the fresh air is too low is avoided, and the condensation is prevented; on the other hand, the water blowing phenomenon is prevented by controlling the rotating speed of the fresh air machine. Therefore, when the indoor fresh air pipe does not generate condensation, the operation of the electric heating device and/or the fresh air fan is controlled to prevent the condensation, and the condensation prevention effect is improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic diagram of a method for preventing condensation of an air conditioner according to an embodiment of the disclosure;
FIG. 2 is a schematic diagram of another method for preventing condensation of an air conditioner according to an embodiment of the disclosure;
FIG. 3 is a schematic diagram of another method for preventing condensation of an air conditioner according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of another method for preventing condensation of an air conditioner according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of another method for preventing condensation of an air conditioner according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of another method for preventing condensation of an air conditioner according to an embodiment of the present disclosure;
FIG. 7 is a schematic view of an apparatus for preventing condensation of an air conditioner according to an embodiment of the present disclosure;
fig. 8 is a schematic view of another device for preventing condensation of an air conditioner according to an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
The term "correspond" may refer to an association or binding relationship, and a corresponds to B refers to an association or binding relationship between a and B.
The embodiment of the disclosure provides an air conditioner. The air conditioner comprises an outdoor fresh air pipe and an indoor fresh air pipe. An electric heating device is arranged at the air inlet of the outdoor fresh air pipe. The electric heating device can heat the fresh air entering the outdoor fresh air pipe. Optionally, the electrical heating means is a heating wire. The electric heating wire is wound on the inner wall of the outdoor fresh air pipe.
And a temperature sensor is also arranged in the outdoor fresh air pipe and used for detecting the temperature of fresh air. Optionally, the temperature sensor is located at a distance from the electric heating device, and the temperature sensor is located closer to the room. Thus, under the condition that the electric heating device heats the fresh air, the temperature sensor can detect the temperature of the heated fresh air so as to ensure the condensation prevention effect; meanwhile, the influence of the heating of the electric heating device on the detection of the fresh air temperature can be avoided. Optionally, the distance between the temperature sensor and the electric heating device is 5cm-8 cm.
Referring to fig. 1, an embodiment of the present disclosure provides a method for preventing condensation of an air conditioner, including:
s101, the air conditioner obtains fresh air temperature, indoor temperature and indoor humidity.
And S102, the air conditioner determines the indoor dew point temperature according to the indoor temperature and the indoor humidity.
S103, the air conditioner controls the operation of the electric heating device and/or the fresh air machine according to the fresh air temperature and the indoor dew point temperature.
When the air conditioner runs the fresh air function, the temperature of the fresh air is obtained through the temperature sensor arranged in the outdoor fresh air pipe. The indoor temperature and the indoor humidity are acquired through a temperature sensor and a humidity sensor which are arranged indoors. The indoor humidity herein refers to indoor relative humidity. And calculating the indoor dew point temperature according to the indoor temperature and the indoor humidity. The initial state of the electric heating device is an off state. And judging whether the indoor fresh air pipe has the possibility of generating condensation or not according to the fresh air temperature and the indoor dew point temperature. When the fresh air temperature is higher than the indoor dew point temperature by a certain value, the indoor fresh air pipe can not generate condensation. On the contrary, condensation may occur. Based on this, the operation of the electric heating device and/or the fresh air machine is controlled. Keeping the electric heating device and/or the fresh air fan in the current state; or, the operation of the electric heating device and/or the fresh air machine is adaptively adjusted to prevent the generation of condensation.
In the embodiment of the disclosure, whether condensation is generated in the indoor fresh air pipe is judged based on the fresh air temperature and the indoor dew point temperature, so that the operation of the electric heating device and/or the fresh air machine is controlled. On the one hand, the fresh air is heated by controlling the electric heating device under the condition that condensation is possibly generated, so that the temperature of the fresh air is prevented from being too low, and the condensation is prevented; on the other hand, the water blowing phenomenon is prevented by controlling the rotating speed of the fresh air machine. Therefore, when the indoor fresh air pipe does not generate condensation, the operation of the electric heating device and/or the fresh air fan is controlled to prevent the condensation, and the condensation prevention effect is improved.
Optionally, S102, the determining, by the air conditioner, an indoor dew point temperature according to the indoor temperature and the indoor humidity includes:
wherein, T d Is the indoor dew point temperature; t is the indoor temperature;
RH is the indoor relative humidity; a is a first constant; b is a second constant; ln is a natural logarithm.
When the indoor temperature T is more than 0 ℃ and less than 60 ℃, the indoor relative humidity RH is more than 0% and less than RH and less than 100%, and the indoor dew point temperature T d Meets the temperature of 0 ℃ below zero d At < 50 ℃, the formula can be used:
and calculating to obtain the indoor dew point temperature. a is 17.27; and b is 237.7. Thus, under the condition of acquiring the indoor temperature and the indoor humidity, the indoor dew point temperature at the moment can be calculated through the formula.
Optionally, with reference to fig. 2, another method for preventing condensation of an air conditioner is provided in an embodiment of the present disclosure, including:
s101, the air conditioner obtains fresh air temperature, indoor temperature and indoor humidity.
And S102, the air conditioner determines the indoor dew point temperature according to the indoor temperature and the indoor humidity.
And S113, the air conditioner determines a dew point temperature threshold according to the indoor dew point temperature.
S123, under the condition that the fresh air temperature is less than or equal to the first dew point temperature threshold value, the air conditioner controls the electric heating device to be started; the smaller the dew point temperature range where the fresh air temperature is located, the higher the heating gear of the air conditioner control electric heating device is.
According to the determined indoor dew point temperature T d The dew point temperature thresholds are obtained by adding different deltat to the indoor dew point temperature. The dew point temperature threshold comprises a first dew point temperature threshold. If the fresh air temperature is less than or equal to the first dew point temperature threshold value, the fresh air temperature is low, and the indoor fresh air pipe is easy to generate condensation. At the moment, the electric heating device is controlled to be started, so that the electric heating device heats the fresh air to improve the temperature of the fresh air. If the fresh air temperature is greater than the first dew point temperature threshold value, the fresh air temperature is high, and the indoor fresh air pipe is not easy to generate condensation. At the moment, the electric heating device is controlled to keep the current closing state so as to save electric energy; meanwhile, the fresh air fan is controlled to keep the current rotating speed, so that the fresh air supply quantity is ensured.
The plurality of dew point temperature thresholds may form a plurality of consecutive dew point temperature intervals. And judging the dew point temperature range of the fresh air temperature. Optionally, the first dew point temperature interval is (T) d +ΔT 2 ,T d +ΔT 1 ]The second dew point temperature interval is (T) d ,T d +ΔT 2 ]Third dew point temperatureInterval is (- ∞, T) d ]. Wherein, Δ T 1 >ΔT 2 Namely, the second dew point temperature interval is smaller than the first dew point temperature interval and is larger than the third dew point temperature interval. The first dew point temperature threshold is the upper limit value of the maximum dew point temperature interval (first dew point temperature interval), namely T d +ΔT 1 . Alternatively, Δ T 1 May be 3 deg.c. Delta T 2 May be 1 ℃.
The dew point temperature interval and the heating gear of the electric heating device have one or more corresponding relations. And determining the heating gear of the electric heating device according to the dew point temperature range of the fresh air temperature. The smaller the dew point temperature interval of the fresh air temperature is, the lower the fresh air temperature is. The higher the heating gear of the electric heating device is controlled, so that the more the temperature of the fresh air is increased. The electric heating device can have two heating gears of a first gear and a second gear. When the fresh air temperature is in the first dew point temperature range, the electric heating device is controlled to operate at a first gear. And when the fresh air temperature is in a second dew point temperature range, controlling the electric heating device to operate at a second gear. And the heating power of the second gear is greater than that of the first gear. Optionally, the heating power of the first gear is 200w, and the heating power of the second gear is 400 w.
The setting of the dew point temperature interval and the number of the gears of the electric heating device can be adaptively adjusted according to actual requirements. The larger the number of the gears of the electric heating device is, the larger the number of the dew point temperature intervals is.
Therefore, a first dew point temperature threshold value is set and compared with the fresh air temperature to judge whether condensation is possible or not. And when the fresh air temperature is less than or equal to the first dew point temperature threshold value, controlling the electric heating device to be started. And the heating gear of the electric heating device is controlled through the dew point temperature range of the fresh air temperature so as to heat the fresh air properly. Not only can prevent condensation, but also can save electric energy.
Optionally, with reference to fig. 3, another method for preventing condensation of an air conditioner is provided in an embodiment of the present disclosure, including:
s101, the air conditioner obtains fresh air temperature, indoor temperature and indoor humidity.
And S102, the air conditioner determines the indoor dew point temperature according to the indoor temperature and the indoor humidity.
And S113, the air conditioner determines a dew point temperature threshold according to the indoor dew point temperature.
S123, under the condition that the fresh air temperature is less than or equal to the first dew point temperature threshold value, the air conditioner controls the electric heating device to be started; the smaller the dew point temperature range where the fresh air temperature is located, the higher the heating gear of the air conditioner control electric heating device is.
And S133, controlling the operation of the fresh air machine by the air conditioner according to the fresh air temperature, the indoor dew point temperature and the heating gear of the electric heating device.
The dew point temperature threshold comprises a second temperature dew point threshold, which is the calculated indoor dew point temperature T d . At the beginning of the fresh air function of the air conditioner, the electric heating device is in a closed state. At this time, if the temperature of the fresh air is less than or equal to the second dew point temperature threshold value, namely the temperature of the fresh air is in the minimum dew point temperature interval (third dew point temperature interval), the electric heating device is directly controlled to operate at the heating gear with the highest gear. So as to quickly raise the fresh air temperature. After the air conditioner operates the fresh air function for a period of time, when the fresh air temperature is detected to be gradually reduced to the third dew point temperature range, the electric heating device operates at the highest-grade heating gear according to the control logic. The electric heating device is controlled to keep the current highest heating gear.
The electric heating device can prevent condensation by heating the fresh air and increasing the temperature of the fresh air. However, if the rotating speed of the fresh air fan is too high, the fresh air volume is very large. The problem that even if the electric heating device is used for heating the fresh air, the heating effect of the electric heating device on the fresh air is not obvious due to the fact that the fresh air quantity is too large can occur. Under the condition, the operation of the fresh air machine can be controlled according to the fresh air temperature, the indoor dew point temperature and the heating gear of the electric heating device, so that condensation is further prevented. Specifically, if the heating gear of the electric heating device is already opened to the highest gear, but the temperature of the fresh air is still less than or equal to the second dew point temperature threshold, it indicates that the temperature of the fresh air cannot be further increased by increasing the heating gear of the electric heating device, and condensation cannot be prevented. In this case, the fresh air machine is controlled to reduce the rotation speed at a first rate, that is, the rotation speed of the fresh air machine is gradually reduced until the rotation speed is reduced to the minimum rotation speed. Optionally, the first rate is 100rad/30 s.
Therefore, the operation of the fresh air fan is controlled under the condition that the heating gear of the electric heating device is adjusted to the limit, but the temperature of the fresh air is still very low. The rotating speed of the fresh air fan is controlled to be reduced, so that the fresh air quantity is reduced, the electric heating device can provide enough heating quantity for fresh air, and the prevention of condensation is improved.
It should be noted that, the specific implementation process of steps S101 and S102 may refer to the foregoing embodiment, and details are not described here.
Optionally, with reference to fig. 4, another method for preventing condensation of an air conditioner is provided in an embodiment of the present disclosure, including:
s101, the air conditioner obtains fresh air temperature, indoor temperature and indoor humidity.
And S102, the air conditioner determines the indoor dew point temperature according to the indoor temperature and the indoor humidity.
S103, the air conditioner controls the operation of the electric heating device and/or the fresh air machine according to the fresh air temperature and the indoor dew point temperature.
And S104, under the condition that the rotating speed of the fresh air fan is controlled to be reduced at a first speed, the air conditioner acquires the current fresh air temperature.
And S105, adjusting the rotating speed and/or the heating gear of the fresh air machine by the air conditioner according to the current fresh air temperature and the indoor dew point temperature.
When the rotating speed of the fresh air fan is controlled to be reduced, the current fresh air temperature is acquired in real time through the temperature sensor arranged in the outdoor fresh air pipe, so that the temperature change condition of the fresh air after the air volume is reduced and the fresh air is heated by the electric heating device is monitored. And the rotating speed of the fresh air fan and/or the heating gear of the electric heating device are adjusted in real time according to the current fresh air temperature and the indoor dew point temperature. Therefore, based on the real-time change of the current fresh air temperature, the rotating speed and the heating gear of the fresh air fan are matched appropriately. On one hand, the fresh air temperature can be ensured to be proper, so that condensation is prevented; on the other hand, when the temperature of the fresh air rises, the rotating speed of the fresh air machine can be adjusted as soon as possible so as to meet the requirements of users on the fresh air.
It should be noted that, for the specific implementation process of steps S101, S102, and S103, reference may be made to the above embodiments, and details are not described herein again.
Optionally, with reference to fig. 5, another method for preventing condensation of an air conditioner is provided in an embodiment of the present disclosure, including:
s101, the air conditioner obtains fresh air temperature, indoor temperature and indoor humidity.
And S102, the air conditioner determines the indoor dew point temperature according to the indoor temperature and the indoor humidity.
S103, the air conditioner controls the operation of the electric heating device and/or the fresh air machine according to the fresh air temperature and the indoor dew point temperature.
And S104, under the condition that the rotating speed of the fresh air fan is controlled to be reduced at a first speed, the air conditioner acquires the current fresh air temperature.
And S115, controlling the fresh air fan and the electric heating device to be closed by the air conditioner under the condition that the fresh air temperature is in the third dew point temperature interval and the preset time is kept.
And S125, under the condition that the fresh air temperature is in the second dew point temperature range, the rotating speed of the fresh air machine controlled by the air conditioner is kept unchanged.
And S135, under the condition that the fresh air temperature is in the first dew point temperature interval, the air conditioner controls the fresh air fan to increase the rotating speed at a second speed.
And judging the dew point temperature range in which the fresh air temperature is positioned when adjusting the rotating speed and/or the heating gear of the fresh air machine according to the current fresh air temperature and the indoor dew point temperature.
If the temperature of the fresh air rises and is positioned in the second dew point temperature interval, the temperature of the fresh air is still lower although the temperature of the fresh air rises. In order to fully prevent condensation, the rotating speed of the fresh air fan is controlled to keep the current rotating speed unchanged. And meanwhile, the electric heating device is controlled to keep the highest gear running, and the highest gear heating is carried out on the fresh air, so that the temperature of the fresh air is rapidly increased.
If the temperature of the fresh air is continuously increased and is positioned in the first dew point temperature interval, the temperature of the fresh air is increased highly, and condensation is not easy to generate. And controlling the fresh air machine to increase the rotating speed at a second speed until the rotating speed is increased to the highest rotating speed so as to fully meet the requirement of a user on fresh air. Optionally, the second rate is less than the first rate, i.e. the up rate is less than the down rate. Like this, carry out the deceleration with great speed to reduce the fresh air volume as early as possible, so that electric heater unit can carry out the abundant heating to the new trend, thereby effectively prevent the condensation. And the rotating speed of the new fan can be prevented from being increased too fast by increasing the rotating speed at a lower speed. If the temperature of the fresh air is reduced once, the rotating speed which is slowly increased can be rapidly reduced, so that condensation is effectively prevented.
And if the fresh air temperature is still in the third dew point temperature interval, determining the time length of the third dew point temperature interval. If the preset time is kept, the temperature of the fresh air at the moment is in an excessively low temperature state for a long time. Even reduce the new amount of wind through reducing new fan rotational speed, also can't make electric heater unit improve new trend temperature. At this time, the means of controlling the rotation speed of the fresh air fan and heating the fresh air are ineffective for preventing condensation. Under the condition, the fresh air fan is controlled to be shut down. The fresh air function is stopped to fundamentally avoid the generation of condensation. Meanwhile, the fresh air function is not operated any more, so that the electric heating device does not need to be operated continuously. The electric heating device is controlled to be turned off to save electric energy. At the moment, the fresh air cover plate is controlled to be closed, and condensation on the pipe wall of the outdoor fresh air pipe caused by too low outdoor temperature is prevented. And calculating the indoor dew point temperature and the fresh air temperature at the moment, and controlling the heating gear of the electric heating device and the rotating speed of the fresh air fan according to the logic. Optionally, the preset time period is 10-15 minutes, and can be adjusted according to actual needs.
Therefore, the fresh air temperature is detected in real time while the speed reduction of the fresh air fan is controlled. Based on the change of the fresh air temperature, the operation of the electric heating device and the fresh air fan is adjusted in real time, so that the fresh air temperature and the fresh air quantity are appropriate, and the condensation prevention effect is improved.
It should be noted that, for specific implementation processes of steps S101, S102, S103, and S104, reference may be made to the above embodiments, and details are not described here.
Optionally, with reference to fig. 6, another method for preventing condensation of an air conditioner is provided in an embodiment of the present disclosure, including:
s601, the air conditioner acquires fresh air temperature, indoor humidity and outdoor temperature.
And S102, the air conditioner determines the indoor dew point temperature according to the indoor temperature and the indoor humidity.
S103, the air conditioner controls the operation of the electric heating device and/or the fresh air machine according to the fresh air temperature and the indoor dew point temperature.
And S104, under the condition that the rotating speed of the fresh air fan is controlled to be reduced at a first speed, the air conditioner acquires the current fresh air temperature.
And S105, adjusting the rotating speed and/or the heating gear of the fresh air machine by the air conditioner according to the current fresh air temperature and the indoor dew point temperature.
And S606, under the condition that the outdoor temperature is higher than the indoor dew point temperature, the air conditioner controls the electric heating device to be closed, and/or controls the fresh air fan to keep the current rotating speed.
The air conditioner may be networked with a cloud server to acquire an outdoor temperature. Alternatively, the air conditioner acquires the outdoor temperature through a temperature sensor disposed in the outdoor environment. The outdoor temperature is compared with the indoor dew point temperature. If the outdoor temperature is higher than the indoor dew point temperature, the outdoor temperature is high. In this case, the temperature of the fresh air is not enough to generate condensation, i.e. the condensation condition is not reached. Therefore, the fresh air is not required to be heated, and the electric heating device is controlled to keep a closed state, so that energy is saved. Meanwhile, the fresh air machine can be controlled to keep the current rotating speed so as to fully guarantee the fresh air demand of the user. Of course, if an instruction for reducing the rotating speed of the fresh air fan sent by a user is received, the speed of the fresh air fan is controlled to be reduced according to the instruction so as to meet the requirement of the user.
If the electric heating device is not started, the fresh air in the outdoor fresh air pipe is outdoor air which is not heated, and the temperature of the fresh air is close to the outdoor temperature. If the electric heating device is started, the fresh air in the outdoor fresh air pipe is heated outdoor air, and the temperature of the fresh air is higher than the outdoor temperature. Therefore, if the outdoor temperature is higher than the indoor dew point temperature and the indoor temperature is higher than the fresh air temperature, at least one of the temperature sensor for detecting the outdoor temperature, the temperature sensor for detecting the fresh air temperature, the temperature and humidity sensor for detecting the indoor temperature and humidity or the electric heating device has a fault. The air conditioner sends alarm information to the user to remind the user to troubleshoot the fault so as to effectively prevent condensation. The form of sending the alarm information can be various, such as pushing a message to the terminal equipment of the user, making a 'dripping' sound by the air conditioner through a voice module which the air conditioner has, and the like. Wherein, terminal equipment indicates the electronic equipment who has the wireless connection function, and terminal equipment can carry out communication connection with the air conditioner through connecting the internet, also can directly carry out communication connection with the air conditioner through modes such as bluetooth, wifi. In some embodiments, the terminal device is, for example, a mobile device, a computer, or a vehicle-mounted device built in a floating car, or any combination thereof. The mobile device may include, for example, a cell phone, a smart home device, a wearable device, a smart mobile device, a virtual reality device, or the like, or any combination thereof, wherein the wearable device includes, for example: smart watches, smart bracelets, pedometers, and the like.
Referring to fig. 7, an embodiment of the present disclosure provides an apparatus for preventing condensation of an air conditioner, including: an acquisition module 71, a determination module 72 and a control module 73. The acquisition module 71 is configured to acquire a fresh air temperature, an indoor temperature, and an indoor humidity. The determination module 72 is configured to determine an indoor dew point temperature based on the indoor temperature and the indoor humidity. The control module 73 is configured to control the operation of the electric heating device and/or the fresh air machine based on the fresh air temperature and the indoor dew point temperature.
By adopting the device for preventing condensation of the air conditioner, whether the indoor fresh air pipe has the possibility of generating condensation or not is judged based on the fresh air temperature and the indoor dew point temperature, so that the operation of the electric heating device and/or the fresh air machine is controlled. On the one hand, the fresh air is heated by controlling the electric heating device under the condition that condensation is possibly generated, so that the temperature of the fresh air is prevented from being too low, and the condensation is prevented; on the other hand, the water blowing phenomenon is prevented by controlling the rotating speed of the fresh air machine. Therefore, when the indoor fresh air pipe does not generate condensation, the operation of the electric heating device and/or the fresh air fan is controlled to prevent the condensation, and the condensation prevention effect is improved.
As shown in fig. 8, an embodiment of the present disclosure provides an apparatus for preventing condensation of an air conditioner, which includes a processor (processor)80 and a memory (memory) 81. Optionally, the apparatus may also include a Communication Interface 82 and a bus 83. The processor 80, the communication interface 82 and the memory 81 can communicate with each other through the bus 83. Communication interface 82 may be used for information transfer. The processor 80 may call logic instructions in the memory 81 to perform the method for air conditioner anti-condensation of the above-described embodiment.
In addition, the logic instructions in the memory 81 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 81 is a computer readable storage medium, and can be used for storing software programs, computer executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 80 executes functional applications and data processing by executing program instructions/modules stored in the memory 81, that is, implements the method for preventing condensation of an air conditioner in the above-described embodiment.
The memory 81 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Further, the memory 81 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides an air conditioner, which comprises the device for preventing condensation of the air conditioner.
The disclosed embodiments provide a storage medium storing computer-executable instructions configured to perform the above-described method for preventing condensation of an air conditioner.
The storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of additional identical elements in the process, method or apparatus comprising the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A method for preventing condensation of an air conditioner, wherein the air conditioner comprises an outdoor fresh air pipe, and an electric heating device is arranged at an air inlet of the outdoor fresh air pipe, and the method comprises the following steps:
acquiring fresh air temperature, indoor temperature and indoor humidity;
determining indoor dew point temperature according to indoor temperature and indoor humidity;
and controlling the operation of the electric heating device and/or the fresh air machine according to the fresh air temperature and the indoor dew point temperature.
2. The method of claim 1, wherein controlling the operation of the electric heating device and/or the fresh air machine based on the fresh air temperature and the indoor dew point temperature comprises:
determining a dew point temperature threshold according to the indoor dew point temperature;
controlling the electric heating device to be started under the condition that the fresh air temperature is less than or equal to the first dew point temperature threshold value; wherein the content of the first and second substances,
the smaller the dew point temperature interval where the fresh air temperature is located, the higher the heating gear of the electric heating device is controlled to be.
3. The method according to claim 2, wherein the controlling the operation of the electric heating device and/or the fresh air fan according to the fresh air temperature and the indoor dew point temperature further comprises:
and controlling the operation of the fresh air machine according to the fresh air temperature, the indoor dew point temperature and the heating gear of the electric heating device.
4. The method according to claim 3, wherein the controlling the operation of the fresh air machine according to the fresh air temperature, the indoor dew point temperature and the heating gear of the electric heating device comprises:
controlling the fresh air fan to reduce the rotating speed at a first speed under the conditions that the fresh air temperature is less than or equal to a second dew point temperature threshold value and the heating gear is the highest gear; wherein the content of the first and second substances,
the second dew point temperature threshold is less than the first dew point temperature threshold.
5. The method of claim 4, wherein controlling the operation of the fresh air machine according to the fresh air temperature, the indoor dew point temperature and the heating gear of the electric heating device further comprises:
under the condition that the fresh air fan is controlled to reduce the rotating speed at a first rate, the current fresh air temperature is obtained;
and adjusting the rotating speed and/or the heating gear of the fresh air machine according to the current fresh air temperature and the indoor dew point temperature.
6. The method according to any one of claims 1 to 5, further comprising:
acquiring outdoor temperature;
and under the condition that the outdoor temperature is higher than the indoor dew point temperature, controlling the electric heating device to be kept closed, and/or controlling the fresh air fan to keep the current rotating speed.
7. The method of claim 6, further comprising:
and sending alarm information under the condition that the outdoor temperature is higher than the indoor dew point temperature and the indoor dew point temperature is higher than the fresh air temperature.
8. An apparatus for preventing condensation for an air conditioner, comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for preventing condensation for an air conditioner according to any one of claims 1 to 7 when executing the program instructions.
9. An air conditioner characterized by comprising the device for preventing condensation of an air conditioner according to claim 8.
10. A storage medium storing program instructions, characterized in that the program instructions, when executed, perform the method for air conditioner anti-condensation according to any one of claims 1 to 7.
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