CN110749056B - Air conditioner and control method and device thereof - Google Patents
Air conditioner and control method and device thereof Download PDFInfo
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- CN110749056B CN110749056B CN201911045165.XA CN201911045165A CN110749056B CN 110749056 B CN110749056 B CN 110749056B CN 201911045165 A CN201911045165 A CN 201911045165A CN 110749056 B CN110749056 B CN 110749056B
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- fresh air
- temperature
- air duct
- dew point
- fan
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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
- 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
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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
- 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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- 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 provides an air conditioner and a control method and a device thereof, wherein the air conditioner comprises a fresh air duct and a fresh air fan, the fresh air duct is provided with a fresh air switch door, and the control method comprises the following steps: respectively acquiring a first temperature of the fresh air duct and a dew point temperature of the fresh air duct, wherein the first temperature comprises at least one of an air inlet temperature and an air return temperature, and different first temperatures correspond to different dew point temperatures; identifying the condensation state of the fresh air duct according to the first temperature and the dew point temperature; according to the condensation state, the fresh air fan and/or the fresh air switch door are/is controlled, so that the fresh air switch door and/or the fresh air fan are/is controlled according to the condensation condition of the fresh air duct, and the working efficiency of the air conditioner is improved under the condition that the fresh air demand of a user is ensured.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method and device thereof.
Background
With the gradual increase of health consciousness of consumers, the fresh air function is an important function of the air conditioner. However, the difference between the indoor and outdoor temperature difference and humidity easily causes condensation in the fresh air duct, which affects the fresh air effect.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, a first object of the present invention is to provide a control method for an air conditioner, so as to control a fresh air switch door and/or a fresh air blower according to a condensation condition of a fresh air duct, and improve the working efficiency of the air conditioner under the condition of ensuring a fresh air demand of a user.
A second object of the present invention is to provide a control device for an air conditioner.
A third object of the present invention is to provide an air conditioner.
A fourth object of the invention is to propose a computer-readable storage medium.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a control method for an air conditioner, where the air conditioner includes a fresh air duct and a fresh air blower, the fresh air duct is provided with a fresh air switch door, and the control method includes the following steps: respectively acquiring a first temperature of the fresh air duct and a dew point temperature of the fresh air duct, wherein the first temperature comprises at least one of an air inlet temperature and an air return temperature, and different first temperatures correspond to different dew point temperatures; identifying the condensation state of the fresh air duct according to the first temperature and the dew point temperature; and controlling the fresh air fan and/or the fresh air switch door according to the condensation state.
According to an embodiment of the present invention, the identifying the condensation state of the fresh air duct according to the first temperature and the dew point temperature includes: identifying that the first temperature is less than or equal to the dew point temperature corresponding to the first temperature, and determining that condensation occurs in the fresh air duct; and identifying that the first temperature is greater than the dew point temperature corresponding to the first temperature, and determining that condensation does not occur in the fresh air duct.
According to an embodiment of the present invention, the controlling the fresh air blower and/or the fresh air opening and closing door according to the condensation state includes: identifying the condensation of the fresh air duct, reducing the rotating speed of the fresh air fan, and/or controlling the fresh air switch door to be closed; and identifying that condensation does not occur in the fresh air duct, and controlling the fresh air fan and the fresh air switch door to maintain the current state to operate.
According to one embodiment of the invention, the rotation speed of the fresh air fan is identified to be reduced to the minimum rotation speed, the time length of operation at the minimum rotation speed is obtained to reach the preset time length, and the fresh air fan is controlled to be switched from on to off.
According to an embodiment of the present invention, after the reducing the rotation speed of the fresh air blower and/or controlling the closing of the fresh air switch door, the method further includes: and recognizing that condensation does not occur in the fresh air duct, controlling to reopen the fresh air switch door, and controlling the rotating speed of the fresh air fan to recover to the rotating speed before adjustment, or controlling the fresh air fan to operate at the minimum rotating speed.
According to an embodiment of the present invention, the respectively obtaining the first temperature of the fresh air duct and the dew point temperature of the fresh air duct includes: identifying that the operation mode of the air conditioner is a refrigeration or dehumidification mode, determining that the air inlet temperature is the first temperature, and acquiring the dew point temperature corresponding to the air inlet temperature according to the air inlet temperature and the first relative humidity of the fresh air duct; and identifying that the operation mode is a heating mode, determining that the return air temperature is the first temperature, and acquiring the dew point temperature corresponding to the return air temperature according to the return air temperature and the second relative humidity of the fresh air duct.
According to one embodiment of the invention, material information of the fresh air duct is identified, a compensation coefficient of the dew point temperature is obtained according to the material information, and the obtained dew point temperature is corrected according to the compensation coefficient.
According to an embodiment of the present invention, before the obtaining the first temperature of the fresh air duct and the dew point temperature of the fresh air duct respectively, the method further includes: and receiving a control instruction for opening the fresh air, and opening the fresh air fan and the fresh air switch door according to the control instruction.
The control method of the air conditioner provided by the embodiment of the invention can control the fresh air fan and/or the fresh air opening and closing door according to the condensation condition of the fresh air duct, and improve the energy efficiency of the air conditioner under the condition of ensuring the fresh air demand of a user.
In order to achieve the above object, a second embodiment of the present invention provides a control device for an air conditioning system, including: the acquisition module is used for respectively acquiring a first temperature of the fresh air duct and a dew point temperature of the fresh air duct; wherein the first temperature comprises at least one of an inlet air temperature and a return air temperature; the different first temperatures correspond to different dew point temperatures; the identification module is used for identifying the condensation state of the fresh air duct according to the first temperature and the dew point temperature; and the control module is used for controlling the fresh air fan and/or the fresh air switch door according to the condensation state.
In order to achieve the above object, a third aspect of the present invention provides an air conditioner, including a fresh air duct, wherein the fresh air duct is provided with a fresh air switch door, the fresh air duct is communicated with an internal circulation air duct, and the internal circulation air duct is provided with an internal circulation switch door; and the control device of the air conditioning system is used for controlling the fresh air switch door and the internal circulation switch door.
In order to achieve the above object, a fourth aspect of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the control method of an air conditioner.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a block diagram of a control apparatus of an air conditioner according to an embodiment of the present invention;
fig. 3 is a block diagram of an air conditioner according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
An air conditioner and a control method and apparatus thereof according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention. Wherein, the air conditioner that this application relates to includes the new trend wind channel, and the new trend wind channel is provided with new trend switch door.
As shown in fig. 1, the control method of the air conditioner according to the embodiment of the present invention includes the steps of:
s101: the first temperature of the fresh air duct and the dew point temperature of the fresh air duct are respectively obtained.
Wherein, first temperature includes at least one in air inlet temperature and the return air temperature, and different first temperatures correspond different dew point temperature, promptly, air inlet temperature corresponds air inlet dew point temperature, and return air temperature corresponds return air dew point temperature. The air inlet temperature is the fresh air temperature of the fresh air duct, and the return air temperature is the temperature outside the fresh air duct.
S102: and identifying the condensation state of the fresh air duct according to the first temperature and the dew point temperature.
Specifically, if the first temperature is identified to be less than or equal to the corresponding dew point temperature, it is determined that condensation occurs in the fresh air duct, or if the first temperature is identified to be greater than the corresponding dew point temperature, it is determined that condensation does not occur in the fresh air duct.
It should be understood that the condensation is the effect of the water in the air being liquefied when meeting cold, therefore, when the first temperature of the fresh air duct is less than or equal to the condensation temperature, the water is liquefied and condensed on the wall of the fresh air duct, so as to cause the condensation of the fresh air duct, and further cause the temperature of the fresh air to be reduced, thereby affecting the energy efficiency of the air conditioner.
Specifically, when the air inlet temperature is less than or equal to the air inlet dew point temperature, namely, the temperature inside the fresh air duct is less than or equal to the dew point temperature, condensation can occur on the inner side of the fresh air duct, and when the air return temperature is less than or equal to the air return dew point temperature, namely, the temperature outside the fresh air duct is less than or equal to the dew point temperature, condensation can occur on the outer side of the fresh air duct.
S103: and controlling the fresh air fan and/or the fresh air switch door according to the condensation state.
Further, according to the condensation state, control new trend fan and/or new trend switch door, include: and identifying the condensation in the fresh air duct, reducing the rotating speed of the fresh air fan, and/or controlling the fresh air switch door to be closed, identifying the condensation in the fresh air duct, and controlling the fresh air fan and the fresh air switch door to maintain the current state to operate.
That is to say, when the new trend wind channel takes place the condensation (including new trend wind channel inboard and outside), need control to reduce the rotational speed of new trend fan to prevent that the new trend wind channel from reducing the inlet air temperature because of the condensation, influencing the work efficiency of air conditioner, can the selective control new trend switch door simultaneously and close, with further reduction new trend intake, with the new trend of avoiding receiving the condensation influence further influences the work efficiency of air conditioner. And when the condensation does not appear in the fresh air duct, the operation of the current state can be maintained by controlling the fresh air fan and the fresh air switch door so as to ensure the fresh air demand of the user.
It should be noted that before acquiring the first temperature of the fresh air duct and the dew point temperature of the fresh air duct respectively, the method further includes: and receiving a control instruction for opening the fresh air, and opening the fresh air fan and the fresh air switch door according to the control instruction. That is to say, this application is applied to when receiving the control command who opens the new trend, promptly, when the user selects the new trend function, at this moment, opens new trend fan and new trend switch door according to control command earlier to guarantee user's new trend demand.
Further, the control method further comprises: and identifying that the rotating speed of the fresh air fan is reduced to the minimum rotating speed, acquiring the time length of the minimum rotating speed operation to reach the preset time length, and controlling the fresh air fan to be switched from opening to closing.
That is to say, at the in-process that the rotational speed of control new trend fan reduces, the cascaded reduction of the rotational speed of steerable new trend fan is until reducing to minimum rotational speed to after the new trend wind channel takes place the condensation, reduce the intake of new trend along with the increase of condensation, and after the rotational speed of new trend fan reduces to minimum rotational speed, control new trend fan with minimum rotational speed continuous operation and reach and predetermine duration, then further control new trend fan switches over to closing from the open mode. It should be understood that, this moment, along with the increase of the length of operation time of new trend fan, the condensation condition aggravates gradually, then through the mode of control new trend fan, prevents to continue to supply air to indoor heat exchanger from the new trend wind channel, avoids causing the work efficiency of air conditioner to reduce because of the influence of condensation to the new trend.
Furthermore, after reducing the rotational speed of new trend fan, and/or control new trend switch door closed, still include: recognizing that condensation does not occur in the fresh air duct, controlling to reopen the fresh air switch door, controlling the rotation speed of the fresh air fan to recover to the rotation speed before adjustment, or controlling the fresh air fan to operate at the minimum rotation speed,
that is to say, make frost or the automatic dissipation of condensation causes the new trend wind channel no longer to appear the condensation at the air conditioner, then steerable new trend switch door of reopening and the rotational speed of control new trend fan resumes to the rotational speed before the adjustment, promptly, when the new trend in new trend wind channel no longer receives the condensation to influence, control new trend function normal operating to guarantee user's new trend demand. It should be understood that, in order to prevent that the difference between the indoor temperature and the outdoor temperature is large, the difference between the fresh air temperature and the return air temperature is large, so that the heat exchange of the indoor heat exchanger is abnormal, the fresh air fan can be controlled to operate at the minimum rotating speed and then at the stepped increasing rotating speed, and the stable working state of the air conditioner is ensured.
According to an embodiment of the present invention, respectively obtaining the first temperature of the fresh air duct and the dew point temperature of the fresh air duct includes: the operation mode of the air conditioner is identified to be a refrigeration mode or a dehumidification mode, the air inlet temperature is determined to be a first temperature, the dew point temperature corresponding to the air inlet temperature is obtained according to the air inlet temperature and the first relative humidity of the fresh air duct, the operation mode is identified to be a heating mode, the return air temperature is determined to be the first temperature, and the dew point temperature corresponding to the return air temperature is obtained according to the return air temperature and the second relative humidity of the fresh air duct.
It should be noted that, when the operation mode of the air conditioner is the cooling mode or the dehumidification mode, the indoor temperature is reduced due to the cooling of the air conditioner, that is, the indoor temperature is lower than the outdoor environment temperature, and the outside temperature of the fresh air duct is lower than the inside temperature of the fresh air duct, so that the inside of the fresh air duct is prone to condensation. Therefore, when the air conditioner operates in a refrigerating or dehumidifying mode, the dew point temperature corresponding to the air inlet temperature is obtained according to the air inlet temperature (namely the outdoor temperature) and the first relative humidity of the fresh air duct, and when the air inlet temperature is lower than the dew point temperature, the condensation on the inner side of the fresh air duct is determined.
Similarly, when the operation mode of the air conditioner is the heating mode, the indoor temperature rises due to the heating of the air conditioner, namely, the outdoor temperature is lower than the indoor environment temperature, and the internal temperature of the fresh air duct is lower than the external temperature of the fresh air duct, so the condensation easily occurs outside the fresh air duct. Therefore, when the air conditioner is in heating operation, the dew point temperature corresponding to the return air temperature is obtained according to the return air temperature (namely the indoor temperature) and the first relative humidity of the fresh air duct, so that when the return air temperature is lower than the dew point temperature, the condensation outside the fresh air duct is determined.
It should be noted that, this application embodies the main source of the inboard and outside air temperature of new trend wind channel only through indoor temperature and outdoor temperature, and preferred, can set up temperature sensor at new trend wind channel inner wall and outer wall to judge whether condensation of new trend wind channel inner wall and/or outer wall. Specifically, the temperature of other communicating positions can be adopted to replace the temperature sensor arranged on the inner wall or the outer wall of the fresh air duct, and the description is omitted.
It should be understood that, when the air conditioner is in cooling or dehumidifying operation, the first relative humidity for calculating the dew point temperature is the relative humidity of the outdoor air because condensation occurs on the inner side of the fresh air duct, and when the air conditioner is in heating operation, the second relative humidity for calculating the dew point temperature is the relative humidity of the indoor air because condensation occurs on the outer side of the fresh air duct. Wherein the relative humidity can be detected by a humidity sensor.
And further, identifying material information of the fresh air duct, acquiring a compensation coefficient of the dew point temperature according to the material information, and compensating the acquired dew point temperature according to the compensation coefficient.
It should be noted that, since the fresh air duct generates condensation according to the temperature difference between the inside and the outside thereof, no matter the outside temperature is transmitted to the inside or the inside temperature is transmitted to the outside, heat loss is generated, and therefore, the temperature loss needs to be compensated according to the material information to determine the actual dew point temperature of the inside/outside of the fresh air duct.
In summary, the control method of the air conditioner according to the embodiment of the invention can control the fresh air fan and/or the fresh air opening and closing door according to the condensation condition of the fresh air duct, and improve the energy efficiency of the air conditioner under the condition of ensuring the fresh air demand of the user.
In order to implement the above embodiments, the present invention further provides a control device of an air conditioner.
Fig. 2 is a block diagram of a control apparatus of an air conditioner according to an embodiment of the present invention. As shown in fig. 2, the control device 100 of the air conditioner includes: an acquisition module 10, an identification module 20 and a control module 30.
The acquiring module 10 is used for acquiring a first temperature of the fresh air duct and a dew point temperature of the fresh air duct respectively; wherein the first temperature comprises at least one of an inlet air temperature and a return air temperature; the different first temperatures correspond to different dew point temperatures; the identification module 20 is used for identifying the condensation state of the fresh air duct according to the first temperature and the dew point temperature; the control module 30 is used for controlling the fresh air fan and/or the fresh air opening and closing door according to the condensation state.
Further, the identification module 20 is further configured to: identifying that the first temperature is less than or equal to the dew point temperature corresponding to the first temperature, and determining that condensation occurs in the fresh air duct; and identifying that the first temperature is greater than the dew point temperature corresponding to the first temperature, and determining that condensation does not occur in the fresh air duct.
Further, the control module 30 is further configured to: identifying the condensation of the fresh air duct, reducing the rotating speed of the fresh air fan and/or controlling the closing of a fresh air switch; and identifying that condensation does not occur in the fresh air duct, and controlling the fresh air fan and the fresh air switch door to maintain the current state to operate.
Further, the control module 30 is further configured to: and identifying that the rotating speed of the fresh air fan is reduced to the minimum rotating speed, acquiring the preset time when the time running at the minimum rotating speed reaches, and controlling the fresh air fan to be switched from on to off.
Further, the control module 30 is further configured to: and identifying that condensation does not occur in the fresh air duct, controlling to reopen a fresh air switch door, and controlling the rotating speed of the fresh air fan to recover to the rotating speed before adjustment, or controlling the fresh air fan to operate at the minimum rotating speed.
Further, the identification module 20 is further configured to: identifying that the operation mode of the air conditioner is a refrigeration or dehumidification mode, determining that the air inlet temperature is a first temperature, and acquiring the dew point temperature corresponding to the air inlet temperature according to the air inlet temperature and the first relative humidity of the fresh air duct; and identifying that the operation mode is a heating mode, determining that the return air temperature is a first temperature, and acquiring the dew point temperature corresponding to the return air temperature according to the return air temperature and the second relative humidity of the fresh air duct.
Further, the identification module 20 is further configured to: identifying material information of the fresh air duct, acquiring a compensation coefficient of the dew point temperature according to the material information, and correcting the acquired dew point temperature according to the compensation coefficient.
Further, the control module 30 is further configured to: before the first temperature of the fresh air duct and the dew point temperature of the fresh air duct are respectively obtained, a control instruction for opening fresh air is received, and a fresh air fan and a fresh air switch door are opened according to the control instruction.
It should be noted that the foregoing explanation of the embodiment of the control method of the air conditioning system is also applicable to the control device of the air conditioning system of the embodiment, and details are not repeated here.
In order to implement the above embodiments, the present invention further provides an air conditioner, as shown in fig. 3, including: the fresh air duct is provided with a fresh air switch door 202, and the control device 100 of the air conditioner is used for controlling the fresh air fan 202 and/or the fresh air switch door 201.
In order to implement the above embodiments, the present invention also proposes a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the aforementioned control method of an air conditioner.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A control method of an air conditioner is characterized in that the air conditioner comprises a fresh air duct and a fresh air fan, the fresh air duct is provided with a fresh air switch door, and the control method comprises the following steps:
respectively acquiring a first temperature of the fresh air duct and a dew point temperature of the fresh air duct, wherein the first temperature comprises at least one of an air inlet temperature and an air return temperature, and different first temperatures correspond to different dew point temperatures;
identifying the condensation state of the fresh air duct according to the first temperature and the dew point temperature;
according to the condensation state, to the new trend fan with the new trend switch door is controlled, include:
recognizing that condensation does not occur in the fresh air duct, and controlling the fresh air fan and the fresh air switch door to maintain the current state to operate;
and recognizing that condensation occurs in the fresh air duct, reducing the rotating speed of the fresh air fan, recognizing that the rotating speed of the fresh air fan is reduced to the minimum rotating speed, acquiring that the running time of the minimum rotating speed reaches a preset time, and controlling the fresh air fan to be switched from on to off and controlling the fresh air switch to be closed.
2. The method of claim 1, wherein identifying the condensation state of the fresh air duct from the first temperature and the dew point temperature comprises:
identifying that the first temperature is less than or equal to the dew point temperature corresponding to the first temperature, and determining that condensation occurs in the fresh air duct;
and identifying that the first temperature is greater than the dew point temperature corresponding to the first temperature, and determining that condensation does not occur in the fresh air duct.
3. The method according to claim 1, wherein after the reducing the rotation speed of the fresh air fan and/or controlling the closing of the fresh air switch door, the method further comprises:
and recognizing that condensation does not occur in the fresh air duct, controlling to reopen the fresh air switch door, and controlling the rotating speed of the fresh air fan to recover to the rotating speed before adjustment, or controlling the fresh air fan to operate at the minimum rotating speed.
4. The control method according to any one of claims 1 to 3, wherein the separately obtaining the first temperature of the fresh air duct and the dew point temperature of the fresh air duct comprises:
identifying that the operation mode of the air conditioner is a refrigeration or dehumidification mode, determining that the air inlet temperature is the first temperature, and acquiring the dew point temperature corresponding to the air inlet temperature according to the air inlet temperature and the first relative humidity of the fresh air duct;
and identifying that the operation mode is a heating mode, determining that the return air temperature is the first temperature, and acquiring the dew point temperature corresponding to the return air temperature according to the return air temperature and the second relative humidity of the fresh air duct.
5. The method of claim 4, further comprising:
identifying material information of the fresh air duct, acquiring a compensation coefficient of the dew point temperature according to the material information, and correcting the acquired dew point temperature according to the compensation coefficient.
6. The control method according to claim 1, wherein before the obtaining the first temperature of the fresh air duct and the dew point temperature of the fresh air duct respectively, further comprises:
and receiving a control instruction for opening the fresh air, and opening the fresh air fan and the fresh air switch door according to the control instruction.
7. A control device of an air conditioning system, characterized by comprising:
the acquisition module is used for respectively acquiring a first temperature of a fresh air duct and a dew point temperature of the fresh air duct; wherein the first temperature comprises at least one of an inlet air temperature and a return air temperature; the different first temperatures correspond to different dew point temperatures;
the identification module is used for identifying the condensation state of the fresh air duct according to the first temperature and the dew point temperature;
control module for according to the condensation state, control new trend fan and/new trend switch door, include: recognizing that condensation does not occur in the fresh air duct, and controlling the fresh air fan and the fresh air switch door to maintain the current state to operate;
and recognizing that condensation occurs in the fresh air duct, reducing the rotating speed of the fresh air fan, recognizing that the rotating speed of the fresh air fan is reduced to the minimum rotating speed, acquiring that the running time of the minimum rotating speed reaches a preset time, and controlling the fresh air fan to be switched from on to off and controlling the fresh air switch to be closed.
8. An air conditioner, comprising:
the fresh air duct is provided with a fresh air switch door and is communicated with the internal circulation duct, and the internal circulation duct is provided with an internal circulation switch door;
the control device of the air conditioning system as claimed in claim 7, for controlling the fresh air opening and closing door and the internal circulation opening and closing door.
9. A computer-readable storage medium on which a computer program is stored, characterized in that the program, when executed by a processor, implements the control method of an air conditioner according to any one of claims 1 to 6.
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| CN111536593B (en) * | 2020-05-13 | 2021-10-26 | 广东美的制冷设备有限公司 | Air conditioner, fresh air duct anti-freezing method thereof and storage medium |
| CN111720971B (en) * | 2020-06-18 | 2022-04-08 | 海信（山东）空调有限公司 | Variable frequency air conditioner and anti-condensation control method thereof |
| CN115235060B (en) * | 2021-04-25 | 2024-03-29 | 芜湖美智空调设备有限公司 | Air conditioner, dehumidifying method thereof and computer readable storage medium |
| CN113251616B (en) * | 2021-05-13 | 2023-05-12 | 海信空调有限公司 | Fresh air conditioner and control method thereof |
| CN114811891B (en) * | 2022-03-17 | 2023-12-15 | 青岛海尔空调器有限总公司 | Method and device for preventing condensation of fresh air pipe of air conditioner and air conditioner |
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