CN114811891A - Method and device for preventing condensation of fresh air pipe of air conditioner and air conditioner - Google Patents
Method and device for preventing condensation of fresh air pipe of air conditioner and air conditioner Download PDFInfo
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- 238000010438 heat treatment Methods 0.000 claims abstract description 14
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- 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
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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Abstract
The application relates to the technical field of air conditioner control, and discloses a method for preventing condensation of a fresh air pipe of an air conditioner, which comprises the following steps: under the conditions of a heating mode and a fresh air mode of an air conditioner, obtaining the current outdoor temperature, the current dew point temperature and the temperature of the inner pipe wall of a fresh air pipe; under the condition that the current outdoor temperature is not higher than the dew point temperature, determining a target operation scheme of an air-conditioning induced draft fan according to the inner pipe wall temperature of a fresh air pipe; and controlling an air conditioner induced draft fan to execute the target operation scheme. With this scheme, combine the inner tube wall temperature of fresh air pipe, confirm the target operation scheme that is adapted to the air conditioner draught fan to under the condition of air conditioner control draught fan execution target operation scheme, avoid fresh air pipe surface to produce the condensation, also need not additionally to install the heat preservation design on the air conditioner, improved the life of air conditioner when saving air conditioner manufacturing cost, satisfy the control demand of user to the air conditioner. The application also discloses a device and air conditioner that are used for air conditioner fresh air pipe to prevent condensation.
Description
Technical Field
The application relates to the technical field of air conditioner control, in particular to a method and a device for preventing condensation of a fresh air pipe of an air conditioner and the air conditioner.
Background
Along with the continuous improvement of the living standard of people, the intelligent household electrical appliance gradually enters the life of a user. At present, with the increasing concern of users on environmental health, air conditioners become necessary household appliances for thousands of households. At the present stage, the appearance of the air conditioner brings a more comfortable indoor environment for a user, taking the fresh air function of the air conditioner as an example, under the condition that the fresh air function of the air conditioner is started, the air conditioner can introduce outdoor fresh air into a room through a fresh air pipe so as to achieve the purpose of replacing indoor air with new air. However, when the outdoor temperature is low, when the user opens the fresh air function, the cold outdoor air enters the air inlet side of the indoor unit through the fresh air pipe, and the cold outdoor air condenses the water vapor in the hot indoor air and adheres to the fresh air pipe, which affects the normal use of the air conditioner.
The condensation risk is reduced through carrying out the heat preservation design to the new tuber pipe usually to the method of current air conditioner fresh air pipe condensation, but this kind of mode need install insulation construction additional on the air conditioner, has improved the manufacturing cost of air conditioner to a certain extent, also can not avoid the emergence of fresh air pipe condensation condition.
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 a fresh air pipe of an air conditioner and the air conditioner, which can avoid the condensation of the fresh air pipe under the condition of low outdoor environment temperature.
In some embodiments, the method for preventing condensation of the fresh air duct of the air conditioner comprises the following steps: under the conditions of a heating mode and a fresh air mode of an air conditioner, obtaining the current outdoor temperature, the current dew point temperature and the temperature of the inner pipe wall of a fresh air pipe; under the condition that the current outdoor temperature is not higher than the dew point temperature, determining a target operation scheme of an air-conditioning induced draft fan according to the inner pipe wall temperature of a fresh air pipe; and controlling an air conditioner induced draft fan to execute the target operation scheme.
In some embodiments, the method for preventing condensation of the fresh air duct of the air conditioner comprises the following steps: under the condition that the temperature of the inner pipe wall of the fresh air pipe is lower than a first temperature threshold and higher than a second temperature threshold, determining a target operation scheme of the air-conditioning induced draft fan as controlling the air-conditioning induced draft fan to operate according to a first gear; under the condition that the temperature of the inner pipe wall of the fresh air pipe is lower than a second temperature threshold, determining a target operation scheme of the air-conditioning induced draft fan to control the air-conditioning induced draft fan to operate according to a second gear; wherein the first gear is lower than the second gear.
In some embodiments, the method for preventing condensation of the fresh air duct of the air conditioner comprises the following steps: under the condition that the temperature of the inner pipe wall of the fresh air pipe is higher than a third temperature threshold value, determining that the target operation scheme of the air-conditioning induced draft fan is to close the air-conditioning induced draft fan; wherein the third temperature threshold is higher than the first temperature threshold.
In some embodiments, the method for preventing condensation of the fresh air duct of the air conditioner comprises the following steps: obtaining the current indoor temperature and the current relative humidity; and calculating the current dew point temperature according to the current indoor temperature and the current relative humidity.
In some embodiments, the method for preventing condensation of the fresh air duct of the air conditioner comprises the following steps:
wherein, T d The current dew point temperature, b is a first influence factor, RH is the current relative humidity, a is a second influence factor, and T is the current indoor temperature.
In some embodiments, the method for preventing condensation of the fresh air duct of the air conditioner comprises the following steps: and under the condition that the current outdoor temperature is higher than the dew point temperature and the temperature of the inner pipe wall of the fresh air pipe is lower than the dew point temperature, pushing a fault prompt to a user associated with the air conditioner.
In some embodiments, the method for preventing condensation of the fresh air duct of the air conditioner comprises the following steps: acquiring the current inner pipe wall temperature; and under the condition that the duration that the current temperature of the inner pipe wall is lower than the fourth temperature threshold value lasts for a preset duration, controlling the air conditioner to close the baffle of the fresh air fan so as to prevent outdoor cold air from continuously entering the room.
In some embodiments, the device for preventing condensation of the fresh air duct of the air conditioner comprises: the obtaining module is configured to obtain the current outdoor temperature, the current dew point temperature and the inner pipe wall temperature of the fresh air pipe under the conditions of a heating mode and a fresh air mode of an air conditioner; the determination module is configured to determine a target operation scheme of an air-conditioning induced draft fan according to the inner pipe wall temperature of the fresh air pipe under the condition that the current outdoor temperature is not higher than the dew point temperature; and the control module is configured to control the air-conditioning induced draft fan to execute the target operation scheme.
In some embodiments, the device for preventing condensation of the fresh air duct of the air conditioner comprises: the processor is configured to execute the method for preventing condensation of the fresh air duct of the air conditioner when the program instructions are executed.
In some embodiments, the air conditioner comprises the device for preventing condensation of the fresh air pipe of the air conditioner.
The method and the device for preventing condensation of the fresh air pipe of the air conditioner and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects: under the conditions of a heating mode and a fresh air mode of an air conditioner, the current outdoor temperature, the current dew point temperature and the temperature of the inner pipe wall of a fresh air pipe are obtained; under the condition that the current outdoor temperature is not higher than the dew point temperature, determining a target operation scheme of an air-conditioning induced draft fan according to the inner pipe wall temperature of a fresh air pipe; and controlling an air conditioner induced draft fan to execute the target operation scheme. With this scheme, can be under the circumstances that the new fan of definite air conditioner exists the condensation hidden danger, combine the interior pipe wall temperature of fresh air duct, confirm the target operation scheme who is adapted to the air conditioner draught fan to under the circumstances that air conditioner control draught fan carried out the target operation scheme, avoid fresh air duct surface to produce the condensation, also need not additionally to install the heat preservation design on the air conditioner additional, improved the life of air conditioner when saving air conditioner manufacturing cost, satisfy the control demand of user to the air conditioner.
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 view of a method for preventing condensation of a fresh air duct of an air conditioner according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a method for obtaining dew point temperature provided by an embodiment of the present disclosure;
FIG. 3 is a schematic view of another method for preventing condensation of a fresh air duct of an air conditioner provided by the embodiment of the disclosure;
FIG. 4 is a schematic view of another method for preventing condensation of a fresh air duct of an air conditioner provided by the embodiment of the disclosure;
FIG. 5 is a schematic view of an anti-condensation device for a fresh air duct of an air conditioner according to an embodiment of the present disclosure;
fig. 6 is a schematic view of another device for preventing condensation of a fresh air duct of an air conditioner, provided by the embodiment of the 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.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
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.
FIG. 1 is a schematic view of a method for preventing condensation of a fresh air duct of an air conditioner according to an embodiment of the present disclosure; referring to fig. 1, an embodiment of the present disclosure provides a method for preventing condensation in a fresh air duct of an air conditioner, including:
and S11, under the condition that the air conditioner is started in a heating mode and a fresh air mode, the air conditioner obtains the current outdoor temperature, the current dew point temperature and the inner pipe wall temperature of the fresh air pipe.
And S12, determining the target operation scheme of the air-conditioning induced draft fan by the air conditioner according to the inner pipe wall temperature of the fresh air pipe under the condition that the current outdoor temperature is not higher than the dew point temperature.
And S13, controlling the induced draft fan of the air conditioner to execute the target operation scheme.
In the scheme, under the condition that the air conditioner is started in a heating mode and a fresh air mode, the air conditioner obtains the current outdoor temperature, the current dew point temperature and the inner pipe wall temperature of the fresh air pipe. Here, the air conditioner may obtain the current outdoor temperature in various ways. In one example, if an outdoor ambient temperature sensor is associated with the air conditioner, the temperature information collected by the outdoor ambient temperature sensor may be determined as the current outdoor temperature. In another example, the air conditioner may also obtain the current outdoor temperature through its associated mobile device. Here, the mobile device may include: cell-phone, smart watch or intelligent bracelet. In addition, the air conditioner can also be provided with a temperature sensor at the position where the fresh air pipe enters the room, and the temperature information collected by the temperature sensor is determined as the temperature of the inner pipe wall of the fresh air pipe.
Further, the air conditioner can judge the magnitude relation between the current outdoor temperature and the dew point temperature after obtaining the current outdoor temperature, the current dew point temperature and the temperature of the inner pipe wall of the fresh air pipe, so as to judge whether the condensation risk exists in the current fresh air pipe. Specifically, the air conditioner can determine that the air conditioner has a condensation risk under the condition that the current outdoor temperature is not higher than the dew point temperature, so that the target operation scheme of the air conditioner induced draft fan is determined by combining the inner pipe wall temperature of the fresh air pipe. In this embodiment, the air conditioner may be provided with an induced draft fan. Here, the induced draft fan can be arranged at the air outlet of the air conditioner, and can introduce the air blown out from the air outlet of the air conditioner into the cladding pipe of the fresh air pipe on the premise of starting the induced draft fan. Therefore, hot air blown out from the air outlet of the air conditioner can be more reasonably utilized.
Further, after the air conditioner determines the target operation scheme of the induced draft fan of the air conditioner, the air conditioner controls the induced draft fan to execute the target operation scheme. The air conditioner is operated in the heating mode and the fresh air mode, and when the air conditioner executes the target operation scheme of the draught fan, the air conditioner draught fan can be started and operated according to the target operation scheme, at the moment, the draught fan can introduce hot air blown out from the air outlet of the air conditioner into the cladding pipe of the fresh air pipe, so that the fresh air pipe is heated by the hot air conveyed into the cladding pipe, and the condensation condition of the fresh air pipe is effectively avoided.
By adopting the method for preventing condensation of the fresh air pipe of the air conditioner, the current outdoor temperature, the current dew point temperature and the temperature of the inner pipe wall of the fresh air pipe are obtained under the conditions that the air conditioner is started in a heating mode and a fresh air mode; under the condition that the current outdoor temperature is not higher than the dew point temperature, determining a target operation scheme of an air-conditioning induced draft fan according to the inner pipe wall temperature of a fresh air pipe; and controlling an air conditioner induced draft fan to execute the target operation scheme. With this scheme, can be under the circumstances that the new fan of definite air conditioner exists the condensation hidden danger, combine the interior pipe wall temperature of fresh air duct, confirm the target operation scheme who is adapted to the air conditioner draught fan to under the circumstances that air conditioner control draught fan carried out the target operation scheme, avoid fresh air duct surface to produce the condensation, also need not additionally to install the heat preservation design on the air conditioner additional, improved the life of air conditioner when saving air conditioner manufacturing cost, satisfy the control demand of user to the air conditioner.
Optionally, S12, the determining, by the air conditioner according to the inner pipe wall temperature of the fresh air pipe, a target operation scheme of an air-conditioning induced draft fan includes:
under the condition that the temperature of the inner pipe wall of the fresh air pipe is lower than a first temperature threshold and higher than a second temperature threshold, the air conditioner determines a target operation scheme of the induced draft fan to control the air conditioner induced draft fan to operate according to a first gear; under the condition that the temperature of the inner pipe wall of the fresh air pipe is lower than a second temperature threshold value, the air conditioner determines the target operation scheme of an induced draft fan of the air conditioner to control the induced draft fan of the air conditioner to operate according to a second gear; wherein the first gear is lower than the second gear.
In this scheme, the air conditioner can judge the condensation risk of fresh air pipe in combination with the interior pipe wall temperature of fresh air pipe to combine the condensation risk of fresh air pipe, confirm the target operation scheme who is applicable to the air conditioner draught fan. Specifically, the first temperature threshold and the second temperature threshold may be preferentially determined, where the first temperature threshold is equal to the current dew point temperature +3, and the second temperature threshold is equal to the current dew point temperature + 1; for example, if the current dew point temperature is 2 ℃, the first temperature threshold is 5 ℃ and the second temperature threshold is 3 ℃. In this embodiment, the interior pipe wall temperature of fresh air pipe is less than first temperature threshold and is higher than the condition of second temperature threshold, can confirm that the fresh air pipe of air conditioner exists lower condensation risk, the air conditioner can confirm the target operation scheme of draught fan and operate according to first fender position for control air conditioner draught fan, like this, can blow the hot-blast cladding pipe to the fresh air pipe with lower speed that air outlet department of air conditioner blew off, with this heat the fresh air pipe through transporting a small amount of hot-blasts in the cladding pipe, avoid the fresh air pipe surface to produce the condensation. Under the condition that the temperature of the inner pipe wall of the fresh air pipe is lower than the second temperature threshold value, the fresh air pipe of the air conditioner can be determined to have a higher condensation risk, and the air conditioner can determine the target operation scheme of the induced draft fan of the air conditioner to control the induced draft fan of the air conditioner to operate according to the second stop. As an example, the induced draft fan of the air conditioner may include two operating gears. Namely a first gear and a second gear. And the first gear is lower than the second gear. Like this, can blow the hot-blast cladding pipe to the fresh air pipe with higher speed that air conditioner air outlet department blew off to this can transport the hot-blast cladding pipe that blew off air conditioner air outlet department as early as possible, in order in time to heat the fresh air pipe, avoid the fresh air pipe surface to produce the bad experience that the condensation brought for the user.
Optionally, under the condition that the temperature of the inner pipe wall of the fresh air pipe is higher than a third temperature threshold, the air conditioner determines that the target operation scheme of the induced draft fan is to close the induced draft fan of the air conditioner; wherein the third temperature threshold is higher than the first temperature threshold.
In this scenario, the third temperature threshold is higher than the first temperature threshold. Here, the third temperature threshold is equal to the current dew point temperature + 4. For example, if the current dew point temperature is 2 ℃, the third temperature threshold is 6 ℃. Specifically, after the air conditioner controls the induced draft fan to execute the target operation scheme, the condensation risk absent in the fresh air pipe of the air conditioner can be determined under the condition that the temperature of the inner pipe wall of the fresh air pipe is higher than the third temperature threshold, and then the air conditioner determines that the target operation scheme of the induced draft fan is that the induced draft fan of the air conditioner is turned off. Therefore, the closing time of the air conditioner induced draft fan can be determined more accurately, and unnecessary power resource waste is avoided under the condition that the condensation risk does not exist in the fresh air pipe of the air conditioner.
FIG. 2 is a schematic diagram of a method for obtaining dew point temperature provided by an embodiment of the present disclosure; referring to fig. 2, S11, the air conditioner obtains a current dew point temperature, including:
and S21, the air conditioner obtains the current indoor temperature and the current relative humidity.
And S22, the air conditioner calculates the current dew point temperature according to the current indoor temperature and the current relative humidity.
In the scheme, the air conditioner can also obtain the current indoor temperature and the current relative humidity through the associated ambient temperature sensor or the mobile equipment. It will be appreciated that the dew point temperature is not the same at different ambient temperatures and humidities. Therefore, the air conditioner can calculate the current dew point temperature by combining the current indoor temperature and the current relative humidity after obtaining the current indoor temperature and the current relative humidity. Therefore, the dew point temperature can be more accurately obtained by combining the current temperature and humidity, and an accurate data basis is provided for the judgment process of the condensation condition of the fresh air fan.
Optionally, S22, the air conditioner calculates the current dew point temperature according to the current indoor temperature and the current relative humidity, including:
in this scheme, T d The current dew point temperature, b is a first influence factor, RH is the current relative humidity, a is a second influence factor, and T is the current indoor temperature. And γ (T, RH) can be calculated by the following formula:
through multiple experiments, the first influence factor b can be 237.7 ℃, and the second influence factor a can be 17.27. Therefore, the current indoor temperature and the current relative humidity can be input into the calculation formula of the dew point temperature, and the dew point temperature can be obtained more accurately.
FIG. 3 is a schematic view of another method for preventing condensation of a fresh air duct of an air conditioner provided by the embodiment of the disclosure; with reference to fig. 3, an embodiment of the present disclosure further provides a method for preventing condensation of a fresh air duct of an air conditioner, including:
and S31, under the condition that the air conditioner is started in a heating mode and a fresh air mode, the air conditioner obtains the current outdoor temperature, the current dew point temperature and the inner pipe wall temperature of the fresh air pipe.
And S32, when the current outdoor temperature is higher than the dew point temperature and the temperature of the inner pipe wall of the fresh air pipe is lower than the dew point temperature, the air conditioner pushes a fault prompt to the associated user.
In the scheme, after the air conditioner obtains the current outdoor temperature, the current dew point temperature and the inner pipe wall temperature of the fresh air pipe, the magnitude relation between the outdoor temperature, the dew point temperature and the inner pipe wall temperature of the fresh air pipe can be judged. Specifically, under the condition that the current outdoor temperature is higher than the dew point temperature and the inner pipe wall temperature of the fresh air pipe is lower than the dew point temperature, it is determined that the condensation risk exists in the current fresh air pipe, and the condensation risk is not caused by the low outdoor temperature, so that the air conditioner can push a fault prompt to a user associated with the air conditioner. Here, the fault reminder may be pushed to the user associated with the fault reminder by text pushing or voice pushing. Like this, can be in the current fresh air pipe of affirmation and have the condensation risk to this condensation risk is not because the outdoor temperature is lower and under the condition that leads to, warns user's air conditioner trouble, avoids appearing more serious bad consequence.
FIG. 4 is a schematic view of another method for preventing condensation of a fresh air duct of an air conditioner provided by the embodiment of the disclosure; with reference to fig. 4, an embodiment of the present disclosure further provides a method for preventing condensation of a fresh air duct of an air conditioner, including:
and S41, the air conditioner acquires the current inner pipe wall temperature.
And S42, under the condition that the duration that the current temperature of the inner pipe wall is lower than the fourth temperature threshold value lasts for a preset duration, the air conditioner controls the air conditioner to close the baffle of the fresh air fan so as to prevent outdoor cold air from continuously entering the room.
In the scheme, after the air conditioner controls the induced draft fan to execute the target operation scheme, the air conditioner can acquire the current inner pipe wall temperature, so that the current condensation condition of the fresh air pipe can be judged through the acquired inner pipe wall temperature again. Further, under the condition that the duration that the current temperature of the inner pipe wall is lower than the fourth temperature threshold value lasts for the preset duration, after the air conditioner is determined to operate the induced draft fan according to the target operation scheme, the condensation condition of the new air fan is not improved, and then the air conditioner can be controlled to close the new air fan baffle. Here, the fourth temperature threshold is current dew point temperature-1; the preset time period may be 10 minutes. Like this, can avoid outdoor cold air to continuously get into indoorly, aggravate the condensation condition of fresh air pipe.
Optionally, after the air conditioner controls the air conditioner to close the baffle of the fresh air machine, the induced draft fan and the fresh air machine can be reset periodically. Here, 5 minutes may be taken as one cycle. Specifically, the method comprises the steps of firstly starting the induced draft fan, starting the new draft fan again after 1 minute, and judging whether the new draft fan is condensed again to determine whether to execute the reset operation again. Therefore, the novel fan can be reset through multiple cycles, the condensation occurrence rate of the novel fan is reduced, and the control requirement of a user on the air conditioner is met.
FIG. 5 is a schematic view of an anti-condensation device for a fresh air duct of an air conditioner according to an embodiment of the present disclosure; referring to fig. 5, an embodiment of the present disclosure provides an apparatus for preventing condensation of a fresh air duct of an air conditioner, which includes an obtaining module 51, a determining module 52, and a control module 53. The obtaining module 51 is configured to obtain a current outdoor temperature, a current dew point temperature, and an inner pipe wall temperature of the fresh air pipe in a case where the air conditioner is turned on in a heating mode and a fresh air mode; the determining module 52 is configured to determine a target operation scheme of the air-conditioning induced draft fan according to the inner pipe wall temperature of the fresh air pipe when the current outdoor temperature is not higher than the dew point temperature; the control module 53 is configured to control the air-conditioning induced draft fan to perform the target operation scheme.
By adopting the device for preventing condensation of the fresh air pipe of the air conditioner, provided by the embodiment of the disclosure, the current outdoor temperature, the current dew point temperature and the temperature of the inner pipe wall of the fresh air pipe are obtained under the conditions that the air conditioner is started in a heating mode and a fresh air mode; under the condition that the current outdoor temperature is not higher than the dew point temperature, determining a target operation scheme of an air-conditioning induced draft fan according to the inner pipe wall temperature of a fresh air pipe; and controlling an air conditioner induced draft fan to execute the target operation scheme. With this scheme, can be under the circumstances that the new fan of definite air conditioner exists the condensation hidden danger, combine the interior pipe wall temperature of fresh air duct, confirm the target operation scheme who is adapted to the air conditioner draught fan to under the circumstances that air conditioner control draught fan carried out the target operation scheme, avoid fresh air duct surface to produce the condensation, also need not additionally to install the heat preservation design on the air conditioner additional, improved the life of air conditioner when saving air conditioner manufacturing cost, satisfy the control demand of user to the air conditioner.
FIG. 6 is a schematic view of another device for preventing condensation of a fresh air duct of an air conditioner, provided by the embodiment of the disclosure; as shown in fig. 6, an embodiment of the present disclosure provides a device for preventing condensation of a fresh air duct of an air conditioner, which includes a processor (processor)100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to perform the method for preventing condensation of the fresh air duct of the air conditioner according to the above embodiment.
In addition, the logic instructions in the memory 101 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 101, which is a computer-readable storage medium, may 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 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the method for preventing condensation of the fresh air duct of the air conditioner in the above embodiment.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, 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. In addition, the memory 101 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 a fresh air pipe of the air conditioner.
By adopting the air conditioner provided by the embodiment of the disclosure, under the conditions of a heating mode and a fresh air mode of the air conditioner, the current outdoor temperature, the current dew point temperature and the temperature of the inner pipe wall of a fresh air pipe are obtained; under the condition that the current outdoor temperature is not higher than the dew point temperature, determining a target operation scheme of an air-conditioning induced draft fan according to the inner pipe wall temperature of a fresh air pipe; and controlling an air conditioner induced draft fan to execute the target operation scheme. With this scheme, can be under the circumstances that the new fan of definite air conditioner exists the condensation hidden danger, combine the interior pipe wall temperature of fresh air duct, confirm the target operation scheme who is adapted to the air conditioner draught fan to under the circumstances that air conditioner control draught fan carried out the target operation scheme, avoid fresh air duct surface to produce the condensation, also need not additionally to install the heat preservation design on the air conditioner additional, improved the life of air conditioner when saving air conditioner manufacturing cost, satisfy the control demand of user to the air conditioner.
The embodiment of the disclosure provides a computer-readable storage medium, which stores computer-executable instructions configured to execute the above method for preventing condensation of a fresh air duct of an air conditioner.
The disclosed embodiments provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions that, when executed by a computer, cause the computer to perform the above-described method for preventing condensation of a fresh air duct of an air conditioner.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient 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 a fresh air pipe of an air conditioner is characterized by comprising the following steps:
under the conditions of a heating mode and a fresh air mode of an air conditioner, obtaining the current outdoor temperature, the current dew point temperature and the temperature of the inner pipe wall of a fresh air pipe;
under the condition that the current outdoor temperature is not higher than the dew point temperature, determining a target operation scheme of the air-conditioning induced draft fan according to the inner pipe wall temperature of the fresh air pipe;
and controlling the air-conditioning induced draft fan to execute the target operation scheme.
2. The method of claim 1, wherein the determining the target operation scheme of the induced draft fan of the air conditioner according to the inner wall temperature of the fresh air pipe comprises:
under the condition that the temperature of the inner pipe wall of the fresh air pipe is lower than a first temperature threshold and higher than a second temperature threshold, determining a target operation scheme of the air-conditioning induced draft fan as controlling the air-conditioning induced draft fan to operate according to a first gear;
under the condition that the temperature of the inner pipe wall of the fresh air pipe is lower than the second temperature threshold, determining a target operation scheme of the air-conditioning induced draft fan to control the air-conditioning induced draft fan to operate according to a second gear;
wherein the first gear is lower than the second gear.
3. The method of claim 1, wherein after controlling the induced air conditioning fan to execute the target operation scheme, the method further comprises:
under the condition that the temperature of the inner pipe wall of the fresh air pipe is higher than a third temperature threshold value, determining that the target operation scheme of the air-conditioning induced draft fan is to close the air-conditioning induced draft fan;
wherein the third temperature threshold is higher than the first temperature threshold.
4. The method of claim 1, wherein the obtaining a current dew point temperature comprises:
obtaining the current indoor temperature and the current relative humidity;
and calculating the current dew point temperature according to the current indoor temperature and the current relative humidity.
5. The method of claim 4, wherein said calculating the current dew point temperature from the current indoor temperature and the current relative humidity comprises:
wherein, T d The current dew point temperature, b is a first influence factor, RH is the current relative humidity, a is a second influence factor, and T is the current indoor temperature.
6. The method of claim 1, wherein after the air conditioner is turned on to heat the air and to supply fresh air, the method further comprises:
and under the condition that the current outdoor temperature is higher than the dew point temperature and the temperature of the inner wall of the fresh air pipe is lower than the dew point temperature, pushing a fault prompt to a user associated with the air conditioner.
7. The method of claim 1, wherein after controlling the induced air conditioning fan to execute the target operation scheme, the method further comprises:
acquiring the current inner pipe wall temperature;
and under the condition that the duration of the current inner pipe wall temperature lower than the fourth temperature threshold lasts for a preset duration, controlling the air conditioner to close the new fan baffle so as to prevent outdoor cold air from continuously entering the room.
8. The utility model provides a device that is used for air conditioner fresh air pipe to prevent condensation which characterized in that includes:
the obtaining module is configured to obtain the current outdoor temperature, the current dew point temperature and the inner pipe wall temperature of the fresh air pipe under the conditions of a heating mode and a fresh air mode of an air conditioner;
the determining module is configured to determine a target operation scheme of the air-conditioning induced draft fan according to the inner pipe wall temperature of the fresh air pipe under the condition that the current outdoor temperature is not higher than the dew point temperature;
a control module configured to control the air-conditioning induced draft fan to execute the target operation scheme.
9. An apparatus for preventing condensation in a fresh air duct of an air conditioner, comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for preventing condensation in a fresh air duct of an air conditioner according to any one of claims 1 to 7 when the program instructions are executed.
10. An air conditioner characterized by comprising the device for preventing condensation of a fresh air pipe of the air conditioner as claimed in claim 8 or 9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115978758A (en) * | 2022-12-30 | 2023-04-18 | 海信（广东）空调有限公司 | Air conditioner and fresh air control method of air conditioner |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009299914A (en) * | 2008-06-10 | 2009-12-24 | Panasonic Corp | Multiroom air conditioner |
| CN108253591A (en) * | 2018-01-11 | 2018-07-06 | 广东美的制冷设备有限公司 | The control method and air conditioner of air conditioner |
| CN108548296A (en) * | 2018-04-27 | 2018-09-18 | 广东美的制冷设备有限公司 | Air conditioner and its control method and computer readable storage medium |
| CN109764498A (en) * | 2019-03-26 | 2019-05-17 | 广东美的制冷设备有限公司 | Air conditioner and its control method and computer readable storage medium |
| CN110749056A (en) * | 2019-10-30 | 2020-02-04 | 广东美的制冷设备有限公司 | Air conditioner and control method and device thereof |
| CN110895003A (en) * | 2019-10-21 | 2020-03-20 | 珠海格力电器股份有限公司 | Air conditioner using fresh air and control method |
| CN111536593A (en) * | 2020-05-13 | 2020-08-14 | 广东美的制冷设备有限公司 | Air conditioner, fresh air duct anti-freezing method thereof and storage medium |
| JP2020193759A (en) * | 2019-05-28 | 2020-12-03 | シャープ株式会社 | Air conditioning system |
| CN113864982A (en) * | 2021-10-18 | 2021-12-31 | 珠海格力电器股份有限公司 | Control method and device for preventing condensation at air outlet of air conditioner |
-
2022
- 2022-03-17 CN CN202210277325.9A patent/CN114811891B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009299914A (en) * | 2008-06-10 | 2009-12-24 | Panasonic Corp | Multiroom air conditioner |
| CN108253591A (en) * | 2018-01-11 | 2018-07-06 | 广东美的制冷设备有限公司 | The control method and air conditioner of air conditioner |
| CN108548296A (en) * | 2018-04-27 | 2018-09-18 | 广东美的制冷设备有限公司 | Air conditioner and its control method and computer readable storage medium |
| CN109764498A (en) * | 2019-03-26 | 2019-05-17 | 广东美的制冷设备有限公司 | Air conditioner and its control method and computer readable storage medium |
| JP2020193759A (en) * | 2019-05-28 | 2020-12-03 | シャープ株式会社 | Air conditioning system |
| CN110895003A (en) * | 2019-10-21 | 2020-03-20 | 珠海格力电器股份有限公司 | Air conditioner using fresh air and control method |
| CN110749056A (en) * | 2019-10-30 | 2020-02-04 | 广东美的制冷设备有限公司 | Air conditioner and control method and device thereof |
| CN111536593A (en) * | 2020-05-13 | 2020-08-14 | 广东美的制冷设备有限公司 | Air conditioner, fresh air duct anti-freezing method thereof and storage medium |
| CN113864982A (en) * | 2021-10-18 | 2021-12-31 | 珠海格力电器股份有限公司 | Control method and device for preventing condensation at air outlet of air conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115978758A (en) * | 2022-12-30 | 2023-04-18 | 海信（广东）空调有限公司 | Air conditioner and fresh air control method of air conditioner |
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