CN114151917A - Low-temperature dehumidification control method and device for air conditioner and air conditioner - Google Patents

Low-temperature dehumidification control method and device for air conditioner and air conditioner Download PDF

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Publication number
CN114151917A
CN114151917A CN202111401665.XA CN202111401665A CN114151917A CN 114151917 A CN114151917 A CN 114151917A CN 202111401665 A CN202111401665 A CN 202111401665A CN 114151917 A CN114151917 A CN 114151917A
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China
Prior art keywords
temperature
indoor
air conditioner
low
indoor fan
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CN202111401665.XA
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Chinese (zh)
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CN114151917B (en
Inventor
宋磊
邓赛峰
刘合心
陈华
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Ningbo Aux Electric Co Ltd
Ningbo Aux Intelligent Commercial Air Conditioning Manufacturing Co Ltd
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Priority to CN202111401665.XA priority Critical patent/CN114151917B/en
Publication of CN114151917A publication Critical patent/CN114151917A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • 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
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • 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 invention provides a low-temperature dehumidification control method and device for an air conditioner and the air conditioner; wherein, the method comprises the following steps: controlling the air conditioner to operate according to a dehumidification mode in a low-temperature environment, and controlling an indoor fan to operate according to a low wind level; get the indoor fan according to the lowIndoor environment temperature T during operation of wind shieldInner 1Temperature T of the tube1(ii) a Judging the pipe temperature T1Whether the temperature is less than a first temperature threshold and whether the duration reaches a first time threshold; and, indoor ambient temperature TInner 1Whether less than a second temperature threshold; if all, the control indoor fan promotes to well windscreen from low windscreen to according to well windscreen operation, and this kind of mode has not only improved dehumidification effect, has still improved indoor air and indoor heat exchanger's heat transfer effect, thereby has increased the heat of refrigerant in the indoor heat exchanger copper pipe, has alleviated the frost problem, has avoided the indoor temperature to reduce when the dehumidification, has improved user's comfortable experience degree.

Description

Low-temperature dehumidification control method and device for air conditioner and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to a low-temperature dehumidification control method and device for an air conditioner and the air conditioner.
Background
With the development of air conditioning technology, the air conditioner has multiple functions of heating, refrigerating, dehumidifying, ventilating and the like at present, and the application scenes of the air conditioner are gradually widened. In the application scene of the backnoon, the environmental temperature is low, generally not more than 16 ℃, the humidity is high, generally more than 90% of the humidity is close to the saturated humidity, great inconvenience is brought to the life of people, and therefore, the low-temperature dehumidification through the air conditioner has important significance.
The existing low-temperature dehumidification method for the air conditioner mainly controls the starting and stopping of an air conditioner outdoor unit according to the humidity by reducing the set temperature, can achieve the dehumidification effect, but in the low-temperature dehumidification process, the unit frequently enters and exits from the anti-freezing and frosting protection, so that the dehumidification effect is poor, the indoor temperature is reduced, and the comfort level of a user is reduced.
Disclosure of Invention
In view of the above, the present invention aims to provide a low-temperature dehumidification control method and device for an air conditioner, and an air conditioner, which not only improve the dehumidification effect, but also improve the heat exchange effect between indoor air and an indoor heat exchanger, thereby increasing the heat of a refrigerant in a copper pipe of the indoor heat exchanger, alleviating the problem of frosting, avoiding the reduction of indoor temperature while dehumidifying, and improving the comfort experience of users.
In a first aspect, an embodiment of the present invention provides a low-temperature dehumidification control method for an air conditioner, which is applied to a controller of the air conditioner, wherein the air conditioner further includes an indoor fan and an indoor heat exchanger, which are in communication connection with the controller; the method comprises the following steps: controlling the air conditioner to operate according to a dehumidification mode in a low-temperature environment, and controlling an indoor fan to operate according to a low wind level; obtaining the indoor environment temperature T when the indoor fan operates according to the low wind gearInner 1Temperature T of the tube1(ii) a Wherein, the tube temperature T1Calculating according to the temperature of an inlet pipe at the inlet of a copper pipe of the indoor heat exchanger and the temperature of a middle pipe in the middle of the copper pipe; judging the pipe temperature T1Whether the temperature is less than a first temperature threshold and whether the duration reaches a first time threshold; and, indoor ambient temperature TInner 1Whether less than a second temperature threshold; if the wind speed is equal to the low wind speed, the indoor fan is controlled to be lifted from the low wind speed to the medium wind speed, and the indoor fan is operated according to the medium wind speed.
Firstly, the air conditioner operates according to a dehumidification mode in a low-temperature environment, and an indoor fan is controlled to operate according to a low wind level; then obtaining the indoor environment temperature T when the indoor fan operates according to the low wind gearInner 1Temperature T of the tube1And judging the tube temperature T1Whether the temperature is less than a first temperature threshold and whether the duration reaches a first time threshold; and, indoor ambient temperature TInner 1Whether less than a second temperature threshold; if all, then the control indoor fan promotes to well windscreen from low windscreen to according to well windscreen operation, and this kind of control mode has not only improved dehumidification effect, has still improved the heat transfer effect of room air with indoor heat exchanger, thereby has increased the heat of refrigerant in the indoor heat exchanger copper pipe, has alleviated the frosting problem, has avoided the indoor temperature to reduce when the dehumidification, has improved user's comfortable experience degree.
Preferably, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the air conditioner further includes an auxiliary electric heater, and the method further includes: acquiring pipe temperature T when indoor fan operates according to medium gear2(ii) a Judging the pipe temperature T2Whether or not it is not greater than a third temperature threshold; if so, triggering the auxiliary electric heater to operate.
The auxiliary electric heater not only improves the air temperature of the indoor unit, but also increases the heat exchange quantity of indoor air and a refrigerant, and further improves the pipe temperature; and, air temperature promotes, and the relative humidity of air reduces, and the air moisture absorption ability reinforcing, and, indoor fan circulates according to well grade, has not only increased the dehumidification volume, still prevents air-out high temperature to avoided the indoor temperature to reduce when improving dehumidification effect.
Preferably, an embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein a value range of the third temperature threshold is-8 ℃ to 0 ℃.
Preferably, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the method further includes: judging the pipe temperature T2Whether the duration time is greater than a fourth temperature threshold and whether the duration time reaches a second time threshold; and if the wind speeds are both the low wind speed and the medium wind speed, the indoor fan is controlled to be lowered to the low wind speed and operates according to the low wind speed.
The above-mentioned passing judgment pipe temperature T2And a fourth temperature threshold value, so as to control the indoor fan to reduce the wind level from the middle wind level to the low wind level, and avoid the water blowing situation caused by the middle wind level when the dehumidification amount is large.
Preferably, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where a value range of the fourth temperature threshold is 0 to 5 ℃, and a value range of the second time threshold is 0 to 5 min.
Preferably, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where the method further includes: obtaining indoor environment temperature T when indoor fan operates according to medium gearInner 2(ii) a Judging indoor environment temperature TInner 2Whether greater than a fifth temperature threshold; if yes, the indoor fan is controlled to be lowered from the middle wind gear to the low wind gear and is operated according to the low wind gear.
The setting judges whether to control the indoor fan to reduce from the middle wind gear to the low wind gear according to the indoor environment temperature, if the indoor ringThe ambient temperature is higher, and the moisture content of saturated humid air is big more, because no humidity transducer detects humidity, can' T judge the dehumidification volume, and when the dehumidification volume was great, well wind shelves arouse easily to blow water, and the water droplet is easy on the house to breed microorganisms such as moth, damages furniture life-span, brings very big inconvenience for the user, consequently, when indoor ambient temperature TInner 2And when the temperature is higher than the fifth temperature threshold, the indoor fan needs to be controlled to be lowered from the middle wind gear to the low wind gear and operated according to the low wind gear so as to prevent the air conditioner from blowing water.
Preferably, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein a value of the fifth temperature threshold ranges from 17 ℃ to 27 ℃.
Preferably, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, where a value range of the first temperature threshold is-3 ℃ to 0 ℃, a value range of the second temperature threshold is 15 ℃ to 25 ℃, and a value range of the first time threshold is 0 to 5 min.
In a second aspect, an embodiment of the present invention further provides a low-temperature dehumidification control device for an air conditioner, which is applied to a controller of the air conditioner, wherein the air conditioner further includes an indoor fan and an indoor heat exchanger, which are in communication connection with the controller; the device includes: the operation control module is used for controlling the air conditioner to operate according to a dehumidification mode in a low-temperature environment and controlling the indoor fan to operate according to a low wind level; an acquisition module for acquiring the indoor environment temperature T when the indoor fan operates according to the low wind gearInner 1Temperature T of the tube1(ii) a Wherein, the tube temperature T1Calculating according to the temperature of an inlet pipe at the inlet of a copper pipe of the indoor heat exchanger and the temperature of a middle pipe in the middle of the copper pipe; a judging module for judging the tube temperature T1Whether the temperature is less than a first temperature threshold and whether the duration reaches a first time threshold; and, indoor ambient temperature TInner 1Whether less than a second temperature threshold; and the wind gear lifting module is used for controlling the indoor fan to be lifted from the low wind gear to the medium wind gear and to operate according to the medium wind gear if the wind gears are all the same.
In a third aspect, an embodiment of the present invention further provides an air conditioner, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the method in the first aspect when executing the computer program.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a low-temperature dehumidification control method and device for an air conditioner and the air conditioner; firstly, the air conditioner operates according to a dehumidification mode in a low-temperature environment, and an indoor fan is controlled to operate according to a low wind level; then obtaining the indoor environment temperature T when the indoor fan operates according to the low wind gearInner 1Temperature T of the tube1And judging the tube temperature T1Whether the temperature is less than a first temperature threshold and whether the duration reaches a first time threshold; and, indoor ambient temperature TInner 1Whether less than a second temperature threshold; if all, then the control indoor fan promotes to well windscreen from low windscreen to according to well windscreen operation, and this kind of control mode has not only improved dehumidification effect, has still improved the heat transfer effect of room air with indoor heat exchanger, thereby has increased the heat of refrigerant in the indoor heat exchanger copper pipe, has alleviated the frosting problem, has avoided the indoor temperature to reduce when the dehumidification, has improved user's comfortable experience degree.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart illustrating a low-temperature dehumidification control method for an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a position of a temperature sensor in an indoor heat exchanger according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an indoor unit according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a low-temperature dehumidification control device of an air conditioner according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For the convenience of understanding the present embodiment, first, a detailed description will be given to a low-temperature dehumidification control method for an air conditioner according to an embodiment of the present invention. The air conditioner comprises an indoor unit and an outdoor unit, wherein the indoor unit comprises an air inlet, a controller, an indoor heat exchanger, an indoor fan and an auxiliary electric heater, the indoor unit is in communication connection with the controller, the outdoor unit comprises a compressor, an outdoor heat exchanger, a four-way valve and the like, in addition, the air conditioner further comprises a remote controller or remote control equipment and the like, the remote controller or remote control equipment is in communication connection with the controller, a user can control the air conditioner to be turned on and off, set the temperature, set the operation mode and the like through the remote controller or the remote control equipment, the operation mode comprises a heating mode, a refrigerating mode, a dehumidifying mode and the like, and the setting can be specifically carried out according to the actual situation.
Based on the air conditioner, an embodiment of the present invention provides a low-temperature dehumidification control method for an air conditioner, where an execution main body is a controller, and as shown in fig. 1, the method includes the following steps:
step S102, controlling the air conditioner to operate according to a dehumidification mode in a low-temperature environment, and controlling an indoor fan to operate according to a low wind level;
specifically, under low temperature environment, for example the temperature does not exceed 16 ℃ in the backnoon, the user opens dehumidification mode through the remote controller, and controller control air conditioner operates according to dehumidification mode under low temperature environment to carry out low temperature dehumidification, at this moment, because unknown dehumidification capacity, when beginning the dehumidification, the indoor fan of controller control operates according to the low grade of wind, in order to prevent air conditioner under the dehumidification mode to blow water, leads to user's experience degree to reduce.
Furthermore, according to the general conclusion of air conditioning, as verified from the water vapor enthalpy diagram, when the air moisture content is constant, the air temperature is increased, and the relative humidity, which represents the moisture absorption capacity of the air, is decreased, and when the relative humidity is smaller, the air moisture absorption capacity is stronger. Therefore, in order to ensure the dehumidification effect and avoid temperature reduction in the dehumidification process, a user can set the temperature, and in practical application, the set temperature range used by the air conditioner is a-b; the value range of a is 6-10 ℃, the preferred value is 8 ℃, the temperature condition is determined by the lowest set temperature of low-temperature dehumidification, if the temperature is lower than 6 ℃ and is used as the temperature for reaching the temperature shutdown, the unit can frequently enter and exit the anti-freezing and frost-forming protection, and the indoor unit is difficult to avoid frosting and frost-forming; if the temperature above 10 ℃ is selected as the shutdown temperature, the room temperature is easy to decrease too fast; the preferred value of b is 32 ℃ and the value range is 28-35 ℃, and the value can be set according to the actual situation.
Step S104, acquiring indoor environment temperature T when the indoor fan operates according to a low wind gearInner 1Temperature T of the tube1；
Specifically, a temperature sensor may be provided on the air conditioner or the remote controller to detect the indoor ambient temperature and transmit the indoor ambient temperature to the controller; and, as shown in fig. 2, a temperature detecting means such as a temperature sensor is disposed at the copper pipe of the indoor heat exchanger, where the temperature detecting means includes a first temperature sensor 21, a second temperature sensor 22 and a third temperature sensor 23, where the first temperature sensor 21 is disposed at the inlet of the copper pipe to detect the inlet pipe temperature at the inlet, i.e., the temperature when the indoor air enters the copper pipe of the indoor heat exchanger; the second temperature sensor 22 is arranged in the middle of the copper pipe and comprises the middle position of the copper pipe, the position in the preset range of the middle position and the like so as to detect the temperature of the middle pipe in the middle of the copper pipe; a third temperature sensor 23 is provided at the outlet of the copper pipe to detect the outlet pipe temperature at the outlet, or the temperature when the indoor heat exchanger outputs indoor air.
When the indoor fan operates according to the low wind gear, the temperature sensor on the air conditioner or the remote controller detects the indoor environment temperature TInner 1Meanwhile, the pipe temperature T is calculated according to the pipe inlet temperature at the copper pipe inlet of the indoor heat exchanger and the middle pipe temperature at the middle part of the copper pipe1E.g. calculating the average of the tube temperature and the middle tube temperature and taking the average as the tube temperature T1. It should be noted that the tube temperature T is calculated from the tube-in temperature and the middle tube temperature1And taking the temperature of a certain position as the tube temperature T1Compared with the prior art, the accuracy of judging whether the indoor unit frosts is improved.
Step S106, judging the tube temperature T1Whether the temperature is less than a first temperature threshold and whether the duration reaches a first time threshold; and, indoor ambient temperature TInner 1Whether less than a second temperature threshold;
for the above obtained indoor ambient temperature TInner 1Temperature T of the tube1Judging the indoor ambient temperature TInner 1Temperature T of the tube1Whether meet well stroke shelves dehumidification entering condition specifically includes:
firstly, judging the tube temperature T1Whether the temperature is less than a first temperature threshold and whether the duration reaches a first time threshold;
② judging the indoor environment temperature TInner 1Whether less than a second temperature threshold;
if both the first and the second are true, the indoor environment temperature T is determinedInner 1Temperature T of the tube1Meeting the dehumidification entering condition of the middle wind gear; otherwise, if one is not, the indoor environment temperature T is determinedInner 1Temperature T of the tube1The dehumidification entering condition of the middle wind gear is not satisfied, and the control room is arranged at the momentThe inner fan continues to operate according to the low wind gear.
It should be noted that, the value range of the first temperature threshold is-3 ℃ to 0 ℃, and preferably 0 ℃; the value range of the second temperature threshold is 15-25 ℃, and the preferred value range is 18 ℃; the value range of the first time threshold is 0-5 min, preferably 3 min.
And S108, if yes, controlling the indoor fan to be lifted from a low wind gear to a medium wind gear, and operating according to the medium wind gear.
Specifically, when the tube temperature T1When being less than first temperature threshold value, there is the frosting possibility in the indoor set fin, if the indoor set frosts, then can send the noise of papa, seriously influences user's comfortable experience degree. Therefore, the indoor fan is controlled to be lifted from the low wind gear to the medium wind gear, so that the phenomenon that the indoor temperature is too fast to drop is avoided, the heat exchange effect of indoor air and an indoor heat exchanger is improved, the heat obtained by the refrigerant in the pipe is increased, the temperature of the pipe rises, and the frosting is slowed down to a certain extent. And, the tube temperature T1The duration time smaller than the first temperature threshold value also needs to reach a first time threshold value so as to prevent the pipe temperature fluctuation caused by the wind gear switching of the indoor fan.
The low-temperature dehumidification control method of the air conditioner provided by the embodiment of the invention not only improves the dehumidification effect, but also improves the heat exchange effect of the indoor air and the indoor heat exchanger, thereby increasing the heat of the refrigerant in the copper pipe of the indoor heat exchanger, relieving the frosting problem, avoiding the reduction of the indoor temperature while dehumidifying, and improving the comfort experience of users.
It should be noted that the meaning of the low wind gear and the medium wind gear referred to for the indoor fan in this embodiment does not refer to a specific wind gear, but refers to the relative relationship between the low wind gear and the high wind gear, for example, the low wind gear being smaller than the medium wind gear may refer to the wind speed of the low wind gear being smaller than the wind speed of the medium wind gear, and the medium wind gear being a wind gear between the lowest wind gear and the highest wind gear.
Further, the method also includes: acquiring pipe temperature T when indoor fan operates according to medium gear2(ii) a Judging the pipe temperature T2Whether or not it is not greater than a third temperature threshold; if so, triggering the auxiliary electric heater to operate. Namely atAnd in the indoor fan running process according to the middle wind gear, an auxiliary electric heater dehumidification entering condition is further arranged, and when the auxiliary electric heater dehumidification entering condition is met, the auxiliary electric heater is controlled to run. Wherein the value range of the third temperature threshold is-8 ℃ to 0 ℃, and is preferably-3 ℃.
Specifically, as shown in fig. 3, the indoor unit includes: an indoor fan 31, an indoor heat exchanger 32 and an auxiliary electric heater 33, when the indoor fan operates according to a medium gear, the temperature T is measured through a pipe2And judging whether the auxiliary electric heater is started, if so, simultaneously operating the auxiliary electric heater 33 and the indoor fan 31, enabling the indoor air to enter the indoor heat exchanger 32 through the indoor fan 31, heating the indoor air cooled by the indoor heat exchanger 32 through the auxiliary electric heater 33, and sending the heated indoor air into the room, so as to realize dehumidification in a low-temperature environment and ensure that the indoor temperature is relatively constant. Therefore, the auxiliary electric heater is started, so that the air temperature of the indoor unit is increased, the heat exchange quantity of indoor air and a refrigerant is increased, and the pipe temperature is further improved; and, air temperature promotes, and the relative humidity of air reduces, and the air moisture absorption ability reinforcing, and, indoor fan circulates according to well grade, has not only increased the dehumidification volume, still prevents air-out high temperature to avoided the indoor temperature to reduce when improving dehumidification effect.
Further, corresponding to the well wind shelves dehumidification entering condition of above-mentioned, in the indoor fan is according to well wind shelves operation in-process, still be provided with well wind shelves dehumidification and withdraw from the condition, include: firstly, judging the tube temperature T2Whether the duration time is greater than a fourth temperature threshold and whether the duration time reaches a second time threshold; ② judging TInner 2And if the temperature is greater than the fifth temperature threshold value, if at least one of the first temperature and the second temperature is true, the medium-gear dehumidification quitting condition is met. For example, if the pipe temperature T2Greater than a fourth temperature threshold, and for a duration of time reaching a second time threshold; controlling the indoor fan to be lowered from the middle wind gear to the low wind gear and operating according to the low wind gear; and/or the indoor ambient temperature T if the indoor fan is operating at medium wind speedInner 2If the temperature is higher than the fifth temperature threshold value, the indoor fan is controlled to be lowered from the middle wind gear toAnd operating according to the low wind gear.
It should be noted that, the value range of the fourth temperature threshold is 0 ℃ to 5 ℃, and preferably 2 ℃; the value range of the second time threshold is 0-5 min, and the second time threshold can be the same as or different from the first time threshold; the value range of the fifth temperature threshold is 17-27 ℃, and the preferred value range is 22 ℃.
For tube temperatures, in medium-wind grade dehumidification entry conditions, the first temperature threshold is preferably 0 ℃; in the medium-wind-gear dehumidification exit condition, the fourth temperature threshold is preferably 2 ℃, namely, the medium-wind-gear dehumidification entry condition and the medium-wind-gear dehumidification exit condition are different, so that the indoor fan can be prevented from frequently switching wind gears when the temperature of the pipe fluctuates at 0 ℃. In addition, in well stroke shelves dehumidification withdraw from the condition, still can only judge according to indoor ambient temperature, if indoor ambient temperature is higher, the moisture content of saturated humid air is big more, because no humidity transducer detects humidity, can' T judge the dehumidification portion, when the dehumidification volume is great, well stroke shelves arouse easily to blow water, the water droplet is easy to breed microorganisms such as moth on the house, damage furniture life-span, bring very big inconvenience for the user, consequently, when indoor ambient temperature TInner 2And when the temperature is higher than the fifth temperature threshold, the indoor fan needs to be controlled to be lowered from the middle wind gear to the low wind gear and operated according to the low wind gear so as to prevent the air conditioner from blowing water.
In a similar way, corresponding to the above-mentioned supplementary electric heater dehumidification entering condition, still be provided with supplementary electric heater dehumidification and withdraw from the condition, specifically include: firstly, in the process of simultaneously dehumidifying an auxiliary electric heater and an indoor fan, the indoor fan operates according to a medium wind gear; judging whether the indoor fan is switched to other gears or not, if so, controlling the auxiliary electric heater to stop running, thereby avoiding the situation that when the indoor fan runs according to a low wind gear, if the auxiliary electric heater still runs, the local outlet air temperature is too high, and hidden danger is brought to the home safety of a user; and/or, judging whether the heating operation time of the auxiliary electric heater reaches a third time threshold, if so, stopping the machine for a specified time; because unable detection humidity to control off-premises station opens and stops, if supplementary electric heater opens for a long time, then will lead to indoor ambient temperature unable up to standard, so through setting up the third time threshold value, in order to set up for a long time heating, thereby realize automatic start-stop control.
It should be noted that, the value range of the third time threshold is 1min to 10min, preferably 5 min; the value range of the specified duration is 2min to 10min, preferably 2min, and can be specifically set according to the actual situation.
To sum up, the low-temperature dehumidification control method for the air conditioner provided by the embodiment of the invention is based on the set middle-wind-range dehumidification entering condition, the middle-wind-range dehumidification exiting condition, the dehumidification entering condition of the auxiliary electric heater and the dehumidification exiting condition of the auxiliary electric heater, so that the indoor fan and the auxiliary electric heater are used for improving the dehumidification effect, keeping the indoor temperature relatively constant, avoiding the possibility of frost formation of the indoor unit and the possibility of water blowing in the dehumidification process to a great extent, reducing the times of frost prevention and improving the comfort level of users.
Corresponding to the method embodiment, the embodiment of the invention also provides a low-temperature dehumidification control device of the air conditioner, which is applied to a controller of the air conditioner, wherein the air conditioner further comprises an indoor fan and an indoor heat exchanger which are in communication connection with the controller; as shown in fig. 4, the apparatus includes: an operation control module 41, an acquisition module 42, a judgment module 43 and a gear lifting module 44; the functions of each module are as follows:
the operation control module 41 is used for controlling the air conditioner to operate according to a dehumidification mode in a low-temperature environment and controlling the indoor fan to operate according to a low wind gear;
an obtaining module 42, configured to obtain an indoor ambient temperature T when the indoor fan operates according to a low gearInner 1Temperature T of the tube1(ii) a Wherein, the tube temperature T1Calculating according to the temperature of an inlet pipe at the inlet of a copper pipe of the indoor heat exchanger and the temperature of a middle pipe in the middle of the copper pipe;
a judging module 43 for judging the tube temperature T1Whether the temperature is less than a first temperature threshold and whether the duration reaches a first time threshold; and, indoor ambient temperature TInner 1Whether less than a second temperature threshold;
and the wind gear lifting module 44 is used for controlling the indoor fan to lift from the low wind gear to the medium wind gear and operate according to the medium wind gear if the wind gears are all the same.
The low-temperature dehumidification control device of the air conditioner, provided by the embodiment of the invention, not only improves the dehumidification effect, but also improves the heat exchange effect of indoor air and the indoor heat exchanger, so that the heat of a refrigerant in a copper pipe of the indoor heat exchanger is increased, the frosting problem is relieved, the indoor temperature is prevented from being reduced while dehumidification is carried out, and the comfort experience degree of a user is improved.
In one possible embodiment, the air conditioner further includes an auxiliary electric heater, and the apparatus further includes: acquiring pipe temperature T when indoor fan operates according to medium gear2(ii) a Judging the pipe temperature T2Whether or not it is not greater than a third temperature threshold; if so, triggering the auxiliary electric heater to operate.
In another possible embodiment, the third temperature threshold ranges from-8 ℃ to 0 ℃.
In another possible embodiment, the apparatus further comprises: judging the pipe temperature T2Whether the duration time is greater than a fourth temperature threshold and whether the duration time reaches a second time threshold; and if the wind speeds are both the low wind speed and the medium wind speed, the indoor fan is controlled to be lowered to the low wind speed and operates according to the low wind speed.
In another possible implementation manner, the value range of the fourth temperature threshold is 0-5 ℃, and the value range of the second time threshold is 0-5 min.
In another possible embodiment, the apparatus further comprises: obtaining indoor environment temperature T when indoor fan operates according to medium gearInner 2(ii) a Judging indoor environment temperature TInner 2Whether greater than a fifth temperature threshold; if yes, the indoor fan is controlled to be lowered from the middle wind gear to the low wind gear and is operated according to the low wind gear.
In another possible embodiment, the fifth temperature threshold ranges from 17 ℃ to 27 ℃.
In another possible embodiment, the first temperature threshold ranges from-3 ℃ to 0 ℃, the second temperature threshold ranges from 15 ℃ to 25 ℃, and the first time threshold ranges from 0min to 5 min.
The air conditioner low-temperature dehumidification control device provided by the embodiment of the invention has the same technical characteristics as the air conditioner low-temperature dehumidification control method provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.
The embodiment of the invention also provides an air conditioner, which comprises a processor and a memory, wherein the memory stores machine executable instructions capable of being executed by the processor, and the processor executes the machine executable instructions to realize the low-temperature dehumidification control method of the air conditioner.
Referring to fig. 5, the air conditioner includes a processor 50 and a memory 51, the memory 51 stores machine executable instructions capable of being executed by the processor 50, and the processor 50 executes the machine executable instructions to implement the air conditioner low temperature dehumidification control method.
Further, the air conditioner shown in fig. 5 further includes a bus 52 and a communication interface 53, and the processor 50, the communication interface 53 and the memory 51 are connected through the bus 52.
The Memory 51 may include a high-speed Random Access Memory (RAM) and may also include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 53 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used. The bus 52 may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, an EISA (Enhanced Industry Standard Architecture) bus, or the like. The above-mentioned bus may be classified into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one double-headed arrow is shown in FIG. 5, but this does not indicate only one bus or one type of bus.
The processor 50 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 50. The Processor 50 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 51, and the processor 50 reads the information in the memory 51 and completes the steps of the method of the foregoing embodiment in combination with the hardware thereof.
The present embodiments also provide a machine-readable storage medium storing machine-executable instructions that, when invoked and executed by a processor, cause the processor to implement the above-described air conditioner low temperature dehumidification control method.
The method and the device for controlling low-temperature dehumidification of the air conditioner and the computer program product of the air conditioner provided by the embodiment of the invention comprise a computer readable storage medium storing program codes, wherein instructions included in the program codes can be used for executing the method in the foregoing method embodiment, and specific implementation can refer to the method embodiment, and is not described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing 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 according to the embodiments of the present invention. And the aforementioned storage medium includes: 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The low-temperature dehumidification control method of the air conditioner is characterized by being applied to a controller of the air conditioner, wherein the air conditioner further comprises an indoor fan and an indoor heat exchanger which are in communication connection with the controller; the method comprises the following steps:
controlling the air conditioner to operate according to a dehumidification mode in a low-temperature environment, and controlling the indoor fan to operate according to a low wind level;
acquiring the indoor environment temperature T of the indoor fan when the indoor fan operates according to the low wind gearInner 1Temperature T of the tube1(ii) a Wherein the tube temperature T1Calculating according to the inlet pipe temperature at the copper pipe inlet of the indoor heat exchanger and the middle pipe temperature in the middle of the copper pipe;
judging the tube temperature T1Whether the temperature is less than a first temperature threshold and whether the duration reaches a first time threshold; and, the indoor ambient temperature TInner 1Whether less than a second temperature threshold;
and if the wind speed is equal to the low wind speed, controlling the indoor fan to lift from the low wind speed to a medium wind speed and operating according to the medium wind speed.
2. The method of claim 1, wherein the air conditioner further comprises an auxiliary electric heater, the method further comprising:
acquiring the pipe temperature T when the indoor fan operates according to the medium wind gear2；
Judging the tube temperature T2Whether or not it is not greater than a third temperature threshold;
if yes, the auxiliary electric heater is triggered to operate.
3. The method of claim 2, wherein the third temperature threshold is in a range of-8 ℃ to 0 ℃.
4. The method of claim 2, further comprising:
judging the tube temperature T2Whether the duration time is greater than a fourth temperature threshold and whether the duration time reaches a second time threshold;
and if the wind speed is equal to the low wind speed, controlling the indoor fan to be lowered from the medium wind speed to the low wind speed, and operating according to the low wind speed.
5. The method according to claim 4, wherein the fourth temperature threshold value ranges from 0 ℃ to 5 ℃, and the second time threshold value ranges from 0min to 5 min.
6. The method of claim 1, further comprising:
acquiring the indoor environment temperature T when the indoor fan operates according to the medium wind gearInner 2；
Judging the indoor ambient temperature TInner 2Whether greater than a fifth temperature threshold;
and if so, controlling the indoor fan to be lowered from the middle wind gear to the low wind gear, and operating according to the low wind gear.
7. The method of claim 6, wherein the fifth temperature threshold is in a range of 17 ℃ to 27 ℃.
8. The method according to claim 1, wherein the first temperature threshold value ranges from-3 ℃ to 0 ℃, the second temperature threshold value ranges from 15 ℃ to 25 ℃, and the first time threshold value ranges from 0 to 5 min.
9. The low-temperature dehumidification control device of the air conditioner is characterized by being applied to a controller of the air conditioner, wherein the air conditioner further comprises an indoor fan and an indoor heat exchanger which are in communication connection with the controller; the device comprises:
the operation control module is used for controlling the air conditioner to operate according to a dehumidification mode in a low-temperature environment and controlling the indoor fan to operate according to a low wind gear;
an obtaining module, configured to obtain an indoor environment temperature T when the indoor fan operates according to the low wind levelInner 1Temperature T of the tube1(ii) a Wherein the tube temperature T1Calculating according to the inlet pipe temperature at the copper pipe inlet of the indoor heat exchanger and the middle pipe temperature in the middle of the copper pipe;
a judging module for judging the tube temperature T1Whether the temperature is less than a first temperature threshold and whether the duration reaches a first time threshold; and, the indoor ambient temperature TInner 1Whether less than a second temperature threshold;
and the wind gear lifting module is used for controlling the indoor fan to lift from the low wind gear to the medium wind gear and operate according to the medium wind gear if the wind gears are all the same.
10. An air conditioner comprising a memory, a processor and a computer program stored on said memory and executable on said processor, wherein said processor when executing said computer program performs the steps of the method of any of claims 1 to 8.
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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008256307A (en) * 2007-04-06 2008-10-23 Mitsubishi Electric Corp Air-conditioner
CN102679490A (en) * 2011-03-15 2012-09-19 珠海格力电器股份有限公司 Control method of dehumidification mode of air conditioner under low-temperature working condition
JP2013124803A (en) * 2011-12-14 2013-06-24 Panasonic Corp Air conditioning device
CN103375868A (en) * 2012-04-12 2013-10-30 珠海格力电器股份有限公司 Air-conditioner temperature control and dehumidification control method
CN104359188A (en) * 2014-10-28 2015-02-18 广东美的集团芜湖制冷设备有限公司 Air conditioner control method and system and air conditioner
WO2018018808A1 (en) * 2016-07-25 2018-02-01 广东美的制冷设备有限公司 Air conditioner and temperature and humidity control method therefor
CN108644981A (en) * 2018-05-10 2018-10-12 青岛海信日立空调系统有限公司 A kind of air conditioner dehumanization method and air conditioner
CN110762782A (en) * 2019-12-30 2020-02-07 宁波奥克斯电气股份有限公司 Low-temperature dehumidification control method and device and air conditioner
CN113091264A (en) * 2021-04-13 2021-07-09 青岛海尔空调器有限总公司 Control method and device for low-temperature dehumidification of air conditioner, electronic equipment and air conditioner

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008256307A (en) * 2007-04-06 2008-10-23 Mitsubishi Electric Corp Air-conditioner
CN102679490A (en) * 2011-03-15 2012-09-19 珠海格力电器股份有限公司 Control method of dehumidification mode of air conditioner under low-temperature working condition
JP2013124803A (en) * 2011-12-14 2013-06-24 Panasonic Corp Air conditioning device
CN103375868A (en) * 2012-04-12 2013-10-30 珠海格力电器股份有限公司 Air-conditioner temperature control and dehumidification control method
CN104359188A (en) * 2014-10-28 2015-02-18 广东美的集团芜湖制冷设备有限公司 Air conditioner control method and system and air conditioner
WO2018018808A1 (en) * 2016-07-25 2018-02-01 广东美的制冷设备有限公司 Air conditioner and temperature and humidity control method therefor
CN108644981A (en) * 2018-05-10 2018-10-12 青岛海信日立空调系统有限公司 A kind of air conditioner dehumanization method and air conditioner
CN110762782A (en) * 2019-12-30 2020-02-07 宁波奥克斯电气股份有限公司 Low-temperature dehumidification control method and device and air conditioner
CN113091264A (en) * 2021-04-13 2021-07-09 青岛海尔空调器有限总公司 Control method and device for low-temperature dehumidification of air conditioner, electronic equipment and air conditioner

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