CN115875827A - Control method and device of air conditioner and air conditioner - Google Patents
Control method and device of air conditioner and air conditioner Download PDFInfo
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- CN115875827A CN115875827A CN202111144162.9A CN202111144162A CN115875827A CN 115875827 A CN115875827 A CN 115875827A CN 202111144162 A CN202111144162 A CN 202111144162A CN 115875827 A CN115875827 A CN 115875827A
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention relates to a control method and a control device of an air conditioner and the air conditioner, wherein the air conditioner comprises an evaporator, a heat exchange loop of the evaporator comprises a dehumidification heat exchange section for dehumidification and a refrigeration heat exchange section for refrigeration, and a temperature detection unit is arranged on the dehumidification heat exchange section; the refrigeration heat exchange section is communicated with the dehumidification heat exchange section; if the operation mode of the air conditioner is the stable dehumidification mode, the control method of the air conditioner comprises the following steps: acquiring a temperature value of the dehumidification heat exchange section; and adjusting the opening of the expansion joint and the frequency of the compressor according to the temperature value to enable the inlet temperature to be lower than the dew point temperature and the outlet temperature to be higher than the dew point temperature. The control method realizes stable dehumidification without increasing equipment cost, so that the body feeling comfort level is good, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and device of an air conditioner and the air conditioner.
Background
The air conditioner all has the function of refrigeration and dehumidification usually, and traditional air conditioner relies on whole evaporimeter to refrigerate the dehumidification usually, consequently can often appear the phenomenon of room temperature subcooling, and when the room temperature closes on the temperature value that the user set for, the running frequency of compressor can rise repeatedly to lead to the room temperature unstability, human body feels the comfort level relatively poor, brings not good experience for the user.
Disclosure of Invention
In order to solve the problems in the related art, embodiments of the present invention provide a control method and apparatus for an air conditioner, and an air conditioner.
The invention is realized by the following technical scheme.
According to a first aspect of the embodiments of the present invention, a control method of an air conditioner is provided, which is applied to an air conditioner, the air conditioner includes an evaporator, a heat-exchange loop of the evaporator includes a dehumidification heat-exchange section and a refrigeration heat-exchange section, the dehumidification heat-exchange section includes a first heat-exchange section for dehumidification, a temperature detection unit is disposed on the dehumidification heat-exchange section, the refrigeration heat-exchange section includes a second heat-exchange section for refrigeration, and the refrigeration heat-exchange section is communicated with the dehumidification heat-exchange section;
after the air conditioner is started, the method comprises the following steps:
acquiring a temperature value on the dehumidification heat exchange section through the temperature detection unit;
and adjusting the opening degree of the expansion joint and the frequency of the compressor according to the temperature value, so that the inlet temperature is lower than the dew point temperature, and the outlet temperature is higher than the dew point temperature.
According to a second aspect of the embodiments of the present invention, there is provided a control apparatus of an air conditioner, including:
the acquisition module is used for acquiring the operation mode of the air conditioner;
the operation module is used for controlling the air conditioner if the operation mode is a stable dehumidification mode, and the control method of the air conditioner comprises the following steps:
acquiring a temperature value on the dehumidification heat exchange section through the temperature detection unit;
and adjusting the opening degree of the expansion joint and the frequency of the compressor according to the temperature value, so that the inlet temperature is lower than the dew point temperature, and the outlet temperature is higher than the dew point temperature.
According to a third aspect of embodiments of the present invention, there is provided a printer including: the air conditioner control system comprises a memory, a processor and a computer program stored in the memory and capable of being executed by the processor, wherein the processor executes the computer program to realize the control method of the air conditioner according to any one embodiment.
By applying the technical scheme of the invention, a heat exchange loop of an evaporator of the air conditioner is improved, part of the heat exchange loop is used for dehumidification, part of the heat exchange loop is used for refrigeration, and a temperature detection unit is arranged at a corresponding position of the dehumidification heat exchange loop; when the air conditioner enters a stable dehumidification mode to operate, the opening of the expansion valve and the frequency of the compressor are adjusted according to the temperature value measured on the dehumidification heat exchange section, so that the air conditioner can normally operate in the stable dehumidification mode. According to the technical scheme, under the condition that the equipment cost is not increased, stable dehumidification of the air conditioner can be achieved, temperature fluctuation is small, human body feeling comfort degree is good, and user experience is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a control method of an air conditioner according to an alternative embodiment of the present invention;
fig. 3 is a flowchart illustrating a step S20 of a control method of an air conditioner according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating an alternative embodiment of the present invention for determining that an air conditioner enters a stable dehumidification mode according to relative humidity;
fig. 5 is a schematic view illustrating a state where it is determined that the air conditioner enters the stable dehumidification mode according to the indoor temperature according to an alternative embodiment of the present invention;
FIG. 6 is a schematic view illustrating a method for determining that an air conditioner enters a stable dehumidification mode according to an outdoor temperature according to an alternative embodiment of the present invention;
fig. 7 is a flowchart illustrating step S30 of the control method according to the embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating expansion valve opening control according to an embodiment of the present invention;
FIG. 9 is a schematic diagram illustrating a method of exiting a stable dehumidification mode of an air conditioner according to an embodiment of the present invention;
fig. 10 is a schematic diagram illustrating a variation of a temperature of a refrigerant according to an embodiment of the present invention;
FIG. 11 is a graph showing a comparison of the change in room temperature and relative humidity in accordance with an embodiment of the present invention;
fig. 12 is a schematic configuration diagram of a control apparatus of an air conditioner according to an embodiment of the present invention;
fig. 13 is a schematic structural view illustrating an air conditioner according to an embodiment of the present invention;
fig. 14 is a schematic view of a heat exchange circuit of the evaporator of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. The word "if/if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination", depending on the context.
Traditional air conditioner relies on whole evaporimeter to refrigerate the dehumidification usually, consequently can often appear the phenomenon of room temperature subcooling, and when the room temperature closes on the temperature that the user set for, the running frequency of compressor can rise repeatedly to lead to the room temperature unstability, the body feels the comfort level relatively poor, brings not good experience for the user. Aiming at the technical problems, the technical scheme of the invention realizes stable dehumidification without increasing equipment cost, so that the body feeling comfort degree of a human body is better, and the user experience is improved.
The following description is given by way of specific examples.
Referring to fig. 1, fig. 1 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention.
According to the first aspect of this application embodiment, a control method of air conditioner is provided, is applied to the air conditioner, the air conditioner includes the evaporimeter, the heat exchange circuit of evaporimeter includes dehumidification heat exchange section refrigeration heat exchange section, dehumidification heat exchange section is including the first heat exchange section that is used for the dehumidification, the entry of dehumidification heat exchange section is provided with the first temperature detecting element who is used for detecting the entry temperature, and its export is provided with the second temperature detecting element who is used for detecting the exit temperature, refrigeration heat exchange section is including being used for refrigerated second heat exchange section, refrigeration heat exchange section communicate in the rear end of dehumidification heat exchange section.
In an alternative embodiment, if the heat exchange section of the evaporator of the air conditioner includes 52 heat exchange sections with equal length, the number of sections of the first heat exchange section may be 10 to 14, and the number of sections of the second heat exchange section may be 42 to 38. That is, when the number of stages of the first heat exchange section is 10, the number of stages of the second heat exchange section may be 42; when the number of the sections of the first heat exchange section is 12, the number of the sections of the second heat exchange section can be 40; when the number of stages of the first heat exchange section is 14 stages, the number of stages of the second heat exchange section may be 38 stages. The heat exchange pipe sections are distributed according to the number of the pipe sections, so that the air conditioner can normally operate in a stable dehumidification mode, and the technical purposes of constant temperature and good dehumidification effect can be achieved.
In other embodiments, the number of heat exchange sections of the evaporator of the air conditioner may be other values, the number of dehumidification heat exchange sections may be other values, and the number of refrigeration heat exchange sections may also be other values.
The control method of the air conditioner comprises the following steps:
s1: a start instruction signal of the air conditioner is detected.
S2: acquiring an operation mode of an air conditioner;
s3: if the operation mode is the stable dehumidification mode, the control method of the air conditioner comprises the following steps:
acquiring a temperature value on the dehumidification heat exchange pipe section through the temperature detection unit;
and adjusting the opening degree of the expansion joint and the frequency of the compressor according to the temperature value, so that the inlet temperature is lower than the dew point temperature, and the outlet temperature is higher than the dew point temperature.
The invention uses part of the heat exchange loop section for dehumidification by improving the heat exchange loop of the evaporator of the air conditioner, the part of the heat exchange loop section for refrigeration, and the temperature detection unit is arranged at the corresponding position of the dehumidification heat exchange section; when the air conditioner got into when the mode operation of stably dehumidifying, the temperature value that records on the heat exchange pipeline section of dehumidifying adjusted expansion valve aperture and compressor frequency, made the air conditioner normal operating in the mode of stably dehumidifying, can realize the stable dehumidification of air conditioner under the condition that does not increase equipment cost, and the temperature fluctuation is little for human body feels the comfort level better, has promoted user experience. In an alternative embodiment, please refer to fig. 2, and fig. 2 is a flowchart illustrating a control method of an air conditioner according to an alternative embodiment of the present invention.
The control method of the air conditioner comprises the following steps:
step S10: a start instruction signal of the air conditioner is detected.
The air conditioner is a variable frequency air conditioner with adjustable rotating speed or frequency, the starting instruction signal of the air conditioner comprises a starting instruction sent to the air conditioner by a user through a remote controller or a mobile terminal bound with the air conditioner, the starting instruction can be a power-on starting signal of the air conditioner, at the moment, the air conditioner runs in a default mode after being started, the user can manually change the running mode later, and the power-on starting signal can also be a power-on starting signal running in a specified running mode, such as a stable dehumidification starting signal. The bound mobile terminal can be an intelligent device such as a smart phone, an interactive tablet, a desktop computer and an intelligent bracelet.
Step S20: and acquiring the running mode of the air conditioner.
The operation modes of the air conditioner may include a normal cooling mode, a dehumidification mode, a stable dehumidification mode, and other operation modes. When the air conditioner is started, the air conditioner can directly enter a refrigeration mode, and can be immediately changed into other operation modes under a mode change instruction of a user, or when the ambient temperature meets the condition of entering other modes, the air conditioner automatically enters the mode and operates the air conditioner in the mode.
In an alternative embodiment, please refer to fig. 3, and fig. 3 is a flowchart illustrating a step S20 of a control method of an air conditioner according to an embodiment of the present invention.
The step S20 includes:
s21: and acquiring the running mode of the air conditioner.
S22: and judging whether the air conditioner enters a stable dehumidification mode or not.
In an alternative embodiment, referring to fig. 4, fig. 4 is a schematic diagram illustrating an alternative embodiment of the present invention for determining that an air conditioner enters a stable dehumidification mode according to relative humidity.
The method for judging whether the air conditioner enters the stable dehumidification mode comprises the following steps: and acquiring an indoor relative humidity value, and if the indoor relative humidity value is lower than a preset indoor relative humidity threshold value, judging that the operation mode is a stable dehumidification mode.
Humidity represents a physical quantity indicating the degree of dryness of the atmosphere, i.e., the degree of dryness of air, or a physical quantity indicating the amount of water vapor contained therein. The mass of water vapor contained in a unit volume of air is absolute humidity. Since it is difficult to measure the density of water vapor directly, it is usually expressed by the pressure of water vapor. The absolute humidity of the air does not determine how fast the water vapor is above ground and how wet the person feels. The absolute humidity of the air at a certain temperature and the percentage of the saturated air pressure at the same temperature are called relative humidity.
In this embodiment, the indoor relative humidity value is a current relative humidity of an area where the air conditioner indoor unit is located, and the indoor relative humidity value may be obtained by installing a relative humidity detection unit in the air conditioner indoor unit, for example, by installing a relative humidity probe in the air conditioner indoor unit.
In this embodiment, the indoor relative humidity threshold may be a relative humidity threshold set by the inventor according to business experience, and the relative humidity threshold is a relative humidity threshold that a human body feels more comfortable, and optionally, since the relative humidity that the human body feels comfortable in daily life is 70%, the relative humidity threshold may be set to 70%, and 5% of fluctuation is allowed.
In an alternative embodiment, referring to fig. 5, fig. 5 is a schematic diagram illustrating an alternative embodiment of the present invention for determining that an air conditioner enters a stable dehumidification mode according to an indoor temperature.
The method for judging whether the air conditioner enters the stable dehumidification mode comprises the following steps: and acquiring an indoor temperature value, and if the indoor temperature value is in a preset first temperature interval, judging that the operation mode is a stable dehumidification mode.
In this embodiment, the indoor temperature value is a current temperature of an area where the air conditioner indoor unit is located, and the indoor temperature value may be obtained by detecting a temperature detection unit installed on the air conditioner indoor unit, for example, by installing a temperature probe on the air conditioner indoor unit.
In this embodiment, the first temperature interval is an indoor temperature threshold interval, and the first temperature interval may be an indoor temperature threshold interval set by the inventor according to business experience. Specifically, the first temperature range may be 25 to 32 degrees, and at this temperature range, the relative humidity of the air is high, and dehumidification is required. When the indoor temperature detection unit detects that the indoor temperature is higher than 25 ℃ and lower than 32 ℃, the indoor temperature is judged not to be in a temperature range comfortable for human bodies, and therefore the air conditioner can be judged to enter a stable dehumidification mode; when the indoor temperature is lower than 25 degrees or higher than 32 degrees, the air conditioner does not enter the stable dehumidification mode. Wherein, the temperature value of the first temperature interval is allowed to float up and down by 2 degrees, namely between 23 degrees and 34 degrees. In other embodiments, the first temperature interval may also be set to other value intervals.
In an alternative embodiment, please refer to fig. 6, fig. 6 is a schematic diagram illustrating an alternative embodiment of the present invention for determining that the air conditioner enters the stable dehumidification mode according to the outdoor temperature.
The method for judging whether the air conditioner enters the stable dehumidification mode includes the following steps: and acquiring an outdoor temperature value, and judging that the operation mode is a stable dehumidification mode if the outdoor temperature value is in a preset second temperature interval.
In this embodiment, the outdoor temperature value is a current temperature of an area where an outdoor unit of the air conditioner is located, and if the outdoor unit of the air conditioner is disposed in the louver, the outdoor temperature value is a current temperature of the louver. The outdoor temperature value can be obtained by installing a temperature detection unit on the outdoor unit of the air conditioner, for example, by installing a temperature probe on the outdoor unit of the air conditioner.
The second temperature interval is an outdoor temperature threshold interval, and the second temperature interval may be an outdoor temperature threshold interval set by the inventor according to business experience. Specifically, the second temperature range may be 25 to 32 degrees, and at this temperature range, the relative humidity of the air is high, and dehumidification is required. When the outdoor temperature detection unit detects that the outdoor temperature is higher than 25 degrees and lower than 32 degrees, the air conditioner can be judged to enter the stable dehumidification mode; when the outdoor temperature is lower than 25 degrees or the outdoor temperature is higher than 32 degrees, the air conditioner does not enter the stable dehumidification mode or the air conditioner exits the stable dehumidification mode. The second temperature interval is allowed to float up and down by 2 degrees, and in other embodiments, the second temperature interval can be set to other value intervals.
In an alternative embodiment, the method for determining whether the air conditioner enters the stable dehumidification mode includes: and obtaining an indoor temperature value and an outdoor temperature value, calculating according to the indoor temperature value and the outdoor temperature value to obtain an indoor and outdoor temperature difference value, and judging that the operation mode is a stable dehumidification mode if the indoor and outdoor temperature difference value is in a preset third temperature interval.
In this embodiment, the third temperature interval may be an indoor and outdoor temperature difference interval set by the inventor according to business experience, and the third temperature interval may be 0 to 1.5 degrees, or other value intervals. For example, the target temperature set by the user through the remote controller is 26 degrees, and if the current indoor temperature is decreased to 27.5 degrees, that is, the difference between the indoor temperature and the indoor target temperature is 1.5 degrees, the air conditioner is operated in the stable dehumidification mode.
In an alternative embodiment, the method for determining whether the air conditioner enters the stable dehumidification mode includes: and receiving a remote control instruction input by a user, and judging that the air conditioner enters a stable dehumidification mode according to the remote control instruction. When the air conditioner is in other operation modes, the user can control the remote controller according to the self requirement, and the air conditioner is controlled to enter a stable dehumidification mode.
In an alternative embodiment, the temperature detection unit includes a first temperature detection unit and a second temperature detection unit; the inlet of the dehumidification heat exchange section is provided with the first temperature detection unit for detecting the inlet temperature, and the outlet of the dehumidification heat exchange section is provided with the second temperature detection unit for detecting the outlet temperature.
Referring to fig. 7, fig. 7 is a flowchart illustrating the step S30 of the control method according to the embodiment of the invention.
Step S30, if the operation mode is the stable dehumidification mode, the control method of the air conditioner includes:
s31: and acquiring the inlet temperature and the outlet temperature of the dehumidification heat exchange section.
In this embodiment, the inlet temperature may be obtained by the first temperature detection unit disposed at the inlet of the dehumidification heat exchange section, and the opening degree of the expansion valve is conveniently adjusted by obtaining the inlet temperature, so that the inlet temperature is lower than the dew point temperature; the outlet temperature can be obtained through the second temperature detecting element who sets up in the exit of dehumidification heat exchange section, is convenient for adjust the operating frequency of compressor after obtaining the outlet temperature to make outlet temperature be higher than dew point temperature, thereby be convenient for control air conditioner can be in the normal operating of stabilizing dehumidification mode, and reach the effect that can dehumidify and constancy of temperature.
S32: and adjusting the opening of the expansion joint according to the inlet temperature to enable the inlet temperature to be lower than the dew point temperature.
In this embodiment, the dew point temperature is the dew point temperature of the sucked air, that is, the temperature at which the air is cooled to saturation is called the dew point temperature, which is called the dew point for short, when the air pressure is maintained to be constant and the water vapor content in the air is constant, and the unit is expressed in ° f or ° f. In effect, the temperature at which the water vapor and water reach equilibrium.
In this embodiment, the method for calculating the dew point temperature includes: and obtaining an indoor relative humidity value and an indoor temperature value, and calculating the dew point temperature according to the indoor relative humidity value and the indoor temperature value. Alternatively, the dew point temperature may be calculated by the following calculation formula: dew point temperature = a indoor temperature value + B indoor relative humidity value-C,
wherein, A is the coefficient of the temperature detection probe for detecting the indoor temperature value, and the A value can be 0.9; b is the coefficient of a relative humidity detection probe for detecting the indoor relative humidity value, and the B value can be 0.26; c may be the base temperature, and typically may be 22 degrees, then the formula for calculating the dew point temperature is: dew point temperature =0.9 indoor temperature value +0.26 indoor relative humidity value-22 (degrees celsius).
In an alternative embodiment, when the indoor temperature value is 22 degrees and the indoor relative humidity value is 70%, the dew point temperature value can be calculated to be 16 degrees according to the dew point temperature calculation formula.
In this embodiment, the opening degree of the expansion valve is adjusted by obtaining the inlet temperature value and according to the inlet temperature, and when the inlet temperature is lower than the dew point temperature, the opening degree of the expansion valve needs to be appropriately adjusted; when the inlet temperature is higher than the dew point temperature, the opening degree of the expansion valve needs to be decreased to lower the inlet temperature.
Referring to fig. 8, fig. 8 is a schematic diagram illustrating an expansion valve opening degree control according to an embodiment of the invention.
And adjusting the opening of the expansion joint according to the inlet temperature to ensure that when the inlet temperature is lower than the dew point temperature: if the inlet temperature is lower than a preset first temperature threshold value, the opening degree of the expansion valve is larger as the inlet temperature is lower; if the inlet temperature is higher than a preset second temperature threshold value, the opening degree of the expansion valve is smaller as the inlet temperature is higher; the expansion valve opening remains constant if the inlet temperature is between the first temperature threshold and the second temperature threshold. The first temperature threshold and the second temperature threshold are temperature thresholds set by the inventor according to business experience, and are allowed to float up and down by 2 degrees, and the dew point temperature is allowed to float up and down by 2 degrees.
In an alternative embodiment, the first temperature threshold may range from 3 degrees to 6 degrees; the second temperature threshold may range from 10 degrees to 17 degrees.
When the first temperature threshold is 3 degrees, the second temperature threshold may be 10 degrees; when the first temperature threshold is 5 degrees, the second temperature threshold may be 12 degrees; the second temperature threshold may be 17 degrees when the first temperature threshold is 6 degrees. Through the settlement to first temperature threshold and second temperature threshold, can be better adjust the expansion joint aperture to in realize the dehumidification function, and the temperature can keep invariable.
The first temperature threshold may be calculated in combination with the compressor frequency, and the second temperature threshold may be calculated in combination with the dew point temperature, or may be set by the inventor according to business experience.
In an optional embodiment, the first temperature threshold is calculated by:
in a stable dehumidification mode, acquiring the current compressor frequency; presetting a first temperature fluctuation parameter corresponding to the first temperature threshold; and calculating according to the current compressor frequency and the first temperature fluctuation parameter to obtain a first temperature threshold value.
The first temperature fluctuation parameter is a parameter value set by the inventor according to business experience, and may be set to 3 degrees in general, or may be set to another value. The compressor frequency coefficient is 0.6, and therefore the first temperature threshold is calculated as:
first temperature threshold = D compressor frequency-E; wherein D may be a compressor frequency coefficient, and E may be a first temperature fluctuation parameter.
In the stable dehumidification mode, since the compressor frequency needs to be adjusted in real time according to the outlet temperature, the compressor frequency is a variable value, which may be between 10HZ and 15HZ, and therefore, when the compressor frequency is 11HZ and the first temperature fluctuation parameter is 3 degrees, the first temperature threshold may be calculated to be 3.6 degrees, and the first temperature threshold may range from 3 degrees to 6 degrees.
In other embodiments, the first temperature threshold may also be calculated by using other calculation methods.
In an optional embodiment, the second temperature threshold is calculated by: presetting a second temperature fluctuation parameter corresponding to the second temperature threshold value, calculating a difference value between the dew point temperature and the second temperature fluctuation parameter, and taking the difference value between the dew point temperature and the second temperature fluctuation parameter as the second temperature threshold value.
The second temperature fluctuation parameter is a parameter value set by the inventor according to business experience, and may be set to 6 degrees, or may be set to another value. The second temperature threshold is calculated by the formula: the second temperature threshold = dew point temperature-F, where F is a second temperature fluctuation parameter.
Since the dew point temperature changes with the change of the indoor temperature and the indoor humidity, the second temperature threshold also has a range, and optionally, the range of the second temperature threshold may be 10 degrees to 17 degrees; other temperature ranges are also possible. When the dew point temperature is 16 degrees and the second temperature fluctuation parameter is 6 degrees, the second temperature threshold value can be calculated to be 10 degrees.
In other embodiments, the second temperature threshold may also be calculated by using other calculation methods.
In this embodiment, the opening degree of the expansion valve is adjusted to ensure that the inlet temperature at the inlet of the dehumidification heat exchange section is lower than the dew point temperature, the temperature of the refrigerant of the evaporator is far lower than the dew point temperature, and meanwhile, the condition that the temperature of the piping is too low and the piping is frozen is prevented.
S33: and adjusting the frequency of the compressor according to the outlet temperature to enable the outlet temperature to be higher than the dew point temperature.
In the embodiment, when the outlet temperature of the dehumidification heat exchange section is higher than the dew point temperature, the operating frequency of the compressor is increased; when the outlet temperature of the dehumidification heat exchange loop is lower than the dew point temperature, the operation frequency of the compressor is adjusted to be lower, and in this case, the lower the outlet temperature is, the lower the operation frequency of the compressor is. The operation frequency of the compressor is adjusted to ensure that the outlet temperature is higher than the dew point temperature, so that the air conditioner can normally operate in a stable dehumidification mode, and the effects of effective dehumidification and constant temperature are achieved.
S34: and acquiring the target motor rotating speed of the stable dehumidification mode, and adjusting the motor rotating speed of the air conditioner according to the target motor rotating speed.
In this embodiment, the stable dehumidification mode is set with the corresponding target motor rotation speed, so that the air conditioner can normally operate in the stable dehumidification mode, and the effects of dehumidification and constant temperature are achieved. Specifically, the motor of the air conditioner comprises an indoor unit motor and an outdoor unit motor, and optionally, when the refrigerating capacity of the air conditioner is less than or equal to 1, the rotating speed of the indoor unit motor in the stable dehumidification mode can be set to 850RPM; when the refrigerating capacity of the air conditioner is higher than 1 piece and less than 2 pieces, the rotating speed of the motor of the indoor unit in the stable dehumidification mode can be set to 900RPM; when the cooling capacity of the air conditioner is higher than 2 p, the rotation speed of the motor of the indoor unit in the stable dehumidification mode may be set to 1000RPM. In addition, the outdoor unit motor is set to a rotation speed corresponding to the stable dehumidification mode.
In an optional embodiment, in the stable dehumidification mode, the control method of the air conditioner further includes the following steps:
and acquiring the exhaust temperature of the exhaust port of the compressor, and adjusting the opening of the expansion valve according to the exhaust temperature to enable the exhaust temperature to be lower than a preset exhaust temperature threshold.
The exhaust temperature of the compressor can be obtained by installing a temperature detection unit at the exhaust port of the compressor, namely installing a temperature probe. In this embodiment, the air conditioner is preset with an exhaust temperature threshold, and when the exhaust temperature at the exhaust port of the compressor is higher than the preset exhaust temperature threshold, the opening degree of the expansion valve needs to be increased to make the exhaust temperature lower than the preset exhaust temperature threshold. The exhaust temperature threshold is set by the inventor according to business experience. Optionally, the exhaust temperature threshold is 90 degrees, and in other embodiments, the exhaust temperature threshold may be set to other values.
In an alternative embodiment, in the stable dehumidification mode, in order to keep the indoor temperature constant and prevent the fluctuation, the operation frequency of the compressor needs to be adjusted, and the higher the frequency of the compressor is, the stronger the refrigeration capacity is, and the lower the frequency of the compressor is, the weaker the refrigeration capacity is. Therefore, in the stable dehumidification mode, the control method of the air conditioner further includes the steps of:
the method comprises the steps of obtaining the current indoor temperature and the preset target indoor temperature, adjusting the frequency of a compressor down when the current indoor temperature is lower than the target indoor temperature, and adjusting the frequency of the compressor up when the current indoor temperature is higher than the target indoor temperature.
After the stable dehumidification mode is operated for a certain time, or when the indoor temperature value reaches the target temperature, or when the indoor relative humidity value reaches the target relative humidity, or when a mode exit instruction of a user is received, the stable dehumidification mode needs to be exited, and the normal refrigeration mode is continuously operated. In the stable dehumidification mode, the control method of the air conditioner further comprises the following steps: and judging whether the air conditioner exits the stable dehumidification mode or not.
In an alternative embodiment, please refer to fig. 9, fig. 9 is a schematic diagram illustrating a method of the air conditioner exiting the stable dehumidification mode according to an embodiment of the present invention.
Determining whether the air conditioner exits the stable dehumidification mode, including:
s511: and acquiring the running time of the air conditioner.
The running time of the air conditioner is the duration of the running in the stable dehumidification mode after the starting command signal is received.
S512: and when the running time of the air conditioner exceeds a preset first time threshold value, judging that the air conditioner exits a stable dehumidification mode.
The first time threshold is a first threshold of the stable dehumidification mode operation time set by the inventor according to business experience, and specifically may be 60 minutes, or may be another time value.
If the operation of the stable dehumidification mode of the air conditioner does not exceed the first time threshold, but when the first temperature detection unit and the second temperature detection unit are abnormal, that is, the temperature values detected by the first temperature detection unit and the second temperature detection unit are not within the normal range, it can be determined that the temperature detection unit is abnormal, and therefore, the stable dehumidification mode needs to be immediately exited to operate in the conventional refrigeration mode.
In an alternative embodiment, the determining whether the air conditioner exits the stable dehumidification mode includes:
acquiring the running time of the air conditioner;
and acquiring the current indoor relative humidity, and judging that the air conditioner exits the stable dehumidification mode when the running time of the air conditioner exceeds a preset second time threshold and the current indoor relative humidity is lower than the target indoor relative humidity.
The running time of the air conditioner is the time for which the air conditioner runs in the stable dehumidification mode after receiving the starting instruction signal. The second time threshold is a second threshold of the operation time of the stable dehumidification mode set by the inventor according to business experience, and specifically may be 30 minutes, or may be another time value. The setting of the second time threshold may prevent the air conditioner from frequently entering a mode change of exiting the stable dehumidification mode.
The current indoor relative humidity can be obtained by a relative humidity detection unit, namely a relative humidity probe arranged on an indoor unit of the air conditioner.
And when the running time of the air conditioner exceeds a second time threshold and the current indoor relative humidity is lower than a preset indoor target relative humidity, the air conditioner exits the stable dehumidification mode and runs in a conventional refrigeration mode. In this embodiment, since the relative humidity value when the human body feels comfortable is 70%, the indoor target relative humidity can be set to 70%, and 5% fluctuation is allowed. The setting of the second time threshold may prevent the air conditioner from frequently entering a mode change of exiting the stable dehumidification mode.
In addition, if the relative humidity detection unit is abnormal, the air conditioner exits the stable dehumidification mode and operates in a normal refrigeration mode.
In an alternative embodiment, the determining whether the air conditioner exits the stable dehumidification mode includes:
acquiring the running time of the air conditioner; and acquiring the current indoor temperature, and judging that the air conditioner exits the stable dehumidification mode if the running time of the air conditioner exceeds a preset third time threshold and the current indoor temperature is lower than the target indoor temperature.
The running time of the air conditioner is the duration of the running in the stable dehumidification mode after the starting command signal is received. The current indoor temperature can be obtained through a temperature detection unit, namely a temperature probe arranged on an indoor unit of the air conditioner. The setting of the third time threshold may prevent the air conditioner from frequently entering a mode change of exiting the stable dehumidification mode.
The third time threshold is a third threshold of the stable dehumidification mode operation time set by the inventor according to business experience, and specifically may be 30 minutes, or may be another time value. And when the running time of the air conditioner exceeds a third time threshold and the current indoor temperature is lower than a preset indoor target temperature, the air conditioner exits the stable dehumidification mode and runs in a conventional refrigeration mode.
In an alternative embodiment, the indoor target temperature may be set to 25 degrees, and if the current indoor temperature is lower than 25 degrees, the air conditioner exits the stable dehumidification mode and operates in the normal cooling mode. In other embodiments, the indoor target temperature may be set to other temperature values.
In an optional embodiment, a current outdoor temperature is obtained, and when the running time of the air conditioner exceeds a second time threshold and the current outdoor temperature is lower than a preset temperature threshold, the air conditioner exits the stable dehumidification mode. When the outdoor temperature is lower than 25 ℃, the air conditioner exits the stable dehumidification mode and operates in a conventional refrigeration mode; when the outdoor temperature is higher than 25 ℃ and lower than 32 ℃, the air conditioner continuously operates in a stable dehumidification mode until the outdoor temperature is lower than 25 ℃; when the outdoor temperature is higher than 32 degrees, the air conditioner exits the stable dehumidification mode and operates in a normal refrigeration mode.
In an alternative embodiment, the determining whether the air conditioner exits the stable dehumidification mode in the stable dehumidification mode includes: and obtaining the current outdoor temperature, obtaining the current indoor temperature, and when the difference value between the current outdoor temperature and the current indoor temperature is larger than a preset range, the air conditioner exits the stable dehumidification mode.
In an alternative embodiment, the determining whether the air conditioner exits the stable dehumidification mode in the stable dehumidification mode includes: and acquiring the temperature of the temperature distribution pipe, and when the temperature of the temperature distribution pipe is abnormal, the air conditioner exits the stable dehumidification mode.
In an optional embodiment, a remote control instruction input by a user is received, and the air conditioner is judged to exit the stable dehumidification mode according to the remote control instruction.
Referring to fig. 10 and fig. 11, fig. 10 is a schematic diagram illustrating a variation of a temperature of a refrigerant according to an embodiment of the invention; fig. 11 is a graph showing a comparison of changes in room temperature and relative humidity in accordance with an embodiment of the present invention.
When the air conditioner is operated in the stable dehumidification mode, the temperature of the refrigerant at the inlet of the evaporator is lower than the dew point more, and the temperature of the refrigerant at the outlet of the evaporator is higher than the dew point more. In the conventional refrigeration and dehumidification mode, the temperatures of the refrigerants at the inlet and the outlet of the evaporator are lower than the dew point temperature. Compared with a conventional refrigeration dehumidification mode, the temperature of the refrigerant in the stable dehumidification mode is changed greatly, the opening degree of the expansion valve is adjusted to enable the temperature of the refrigerant to change according to a corresponding curve, and the effects of dehumidification and constant room temperature are achieved.
Compared with a conventional refrigeration dehumidification mode, the stable dehumidification mode can reduce the relative humidity of indoor air more quickly and effectively, and the relative humidity can be reduced by 9.4%; in the normal cooling mode, the room temperature value can be as low as 21 ℃, and in the stable dehumidification mode, the room temperature value is basically 22 ℃, so that large fluctuation can not occur, and a comfortable indoor environment can be obtained for human bodies.
In an alternative embodiment, the opening degree of the expansion valve, the frequency of the compressor and the rotation speed of the motor in the stable dehumidification mode are also set according to the refrigerating capacity of the air conditioner. The opening of the expansion valve, the frequency of the compressor and the rotation speed of the motor when the refrigerating capacity of the air conditioner is 1 are different from the opening of the expansion valve, the frequency of the compressor and the rotation speed of the motor when the refrigerating capacity of the air conditioner is 2.
It should be noted that: the unit "degree" of the temperature value in the above-described respective embodiments of the present invention may be "degrees centigrade".
By applying the technical scheme of the invention, the heat exchange loop of the evaporator of the air conditioner is improved, part of the heat exchange loop pipe section is used for dehumidification, part of the heat exchange loop pipe section is used for refrigeration, and corresponding temperature detection units are arranged at the inlet and the outlet of the dehumidification heat exchange pipe section; when the air conditioner enters the stable dehumidification mode to operate, the opening degree of the expansion valve, the frequency of the compressor and the rotating speed of the motor are adjusted according to the inlet temperature and the outlet temperature, so that the air conditioner can normally operate in the stable dehumidification mode. According to the technical scheme, stable dehumidification of the air conditioner can be achieved under the condition that equipment cost is not increased, temperature fluctuation is small, human body feeling comfort level is good, and user experience is improved.
Referring to fig. 12, fig. 12 is a schematic structural diagram of a control device of an air conditioner according to an embodiment of the present invention.
An obtaining module 801, configured to obtain an operation mode of an air conditioner;
the operation module 802 is configured to, if the operation mode is the stable dehumidification mode, perform a control method of the air conditioner, including:
acquiring a temperature value on the dehumidification heat exchange pipe section through the temperature detection unit;
and adjusting the opening degree of the expansion joint and the frequency of the compressor according to the temperature value, so that the inlet temperature is lower than the dew point temperature, and the outlet temperature is higher than the dew point temperature.
In an alternative embodiment, the operation module includes:
the temperature acquisition module is used for acquiring the inlet temperature and the outlet temperature of the dehumidification heat exchange section;
the expansion valve adjusting module is used for adjusting the opening of the expansion joint according to the inlet temperature so that the inlet temperature is lower than the dew point temperature;
and the compressor frequency adjusting module is used for adjusting the frequency of the compressor according to the outlet temperature so that the outlet temperature is higher than the dew point temperature.
In an optional embodiment, the operation module further includes:
and the motor rotating speed adjusting module is used for acquiring the target motor rotating speed of the stable dehumidification mode and adjusting the motor rotating speed of the air conditioner according to the target motor rotating speed.
In the control device of the air conditioner of the present invention, the operation of each module is common to the control method of the air conditioner in the above embodiments, and therefore, the detailed description is omitted.
In an alternative embodiment, the control apparatus of an air conditioner further includes:
and the exit module is used for judging whether the air conditioner exits the stable dehumidification mode.
According to the control device of the air conditioner, a heat exchange loop of an evaporator of the air conditioner is improved, a part of heat exchange loop pipe sections are used for dehumidification, a part of heat exchange loop pipe sections are used for refrigeration, and corresponding temperature detection units are arranged at an inlet and an outlet of the dehumidification heat exchange pipe sections; when the air conditioner enters the stable dehumidification mode to operate, the opening degree of the expansion valve, the frequency of the compressor and the rotating speed of the motor are adjusted according to the inlet temperature and the outlet temperature, so that the air conditioner can normally operate in the stable dehumidification mode. According to the technical scheme, under the condition that the equipment cost is not increased, stable dehumidification of the air conditioner can be achieved, temperature fluctuation is small, human body feeling comfort degree is good, and user experience is improved.
According to a third aspect of the embodiments of the present application, an air conditioner is provided, please refer to fig. 13, where fig. 13 is a schematic structural diagram of the air conditioner according to the embodiments of the present invention.
The air conditioner 900 includes: a memory 901, a processor 902 and a computer program stored in the memory 901 and executable by the processor 902, wherein the processor 902, when executing the computer program, implements the method for controlling the air conditioner according to any one of the above embodiments.
Referring to fig. 14, fig. 14 is a schematic structural diagram of a heat exchange circuit of an evaporator according to the present invention.
The air conditioner further includes an evaporator, the evaporator includes a dehumidification heat-exchange section 101 and a refrigeration heat-exchange section 102, the dehumidification heat-exchange section 101 is used to realize a dehumidification function, and the temperature of the dehumidification heat-exchange section is generally lower than that of a conventional refrigeration heat-exchange section. The refrigeration heat exchange section 102 is connected to the rear end of the dehumidification loop 101, and is used for achieving a refrigeration function.
Compared with the technical scheme that all heat exchange loops are used as refrigerating heat exchange sections of the original air conditioner, partial heat exchange loop sections are used for dehumidification by improving the heat exchange loops of an evaporator of the air conditioner, partial heat exchange loop sections are used for refrigeration, and corresponding temperature detection units are arranged at an inlet and an outlet of the dehumidification heat exchange section; when the air conditioner enters the stable dehumidification mode to operate, the opening degree of the expansion valve, the frequency of the compressor and the rotating speed of the motor are adjusted according to the inlet temperature and the outlet temperature, so that the air conditioner can normally operate in the stable dehumidification mode. According to the technical scheme, under the condition that the equipment cost is not increased, stable dehumidification of the air conditioner can be achieved, temperature fluctuation is small, human body feeling comfort degree is good, and user experience is improved.
In an alternative embodiment, the dehumidification heat exchange section 101 may include a 12-section heat exchange circuit, and the refrigeration heat exchange section 102 may include a 40-section heat exchange circuit.
The heat exchange pipe sections are distributed according to the number of the pipe sections, so that the air conditioner can normally operate in a stable dehumidification mode, and the technical purposes of constant temperature and good dehumidification effect can be achieved.
An inlet temperature detection unit 103 is disposed at an inlet of the dehumidification heat exchange section 101, and is configured to detect an inlet temperature at the inlet of the dehumidification heat exchange section 101. An outlet temperature detection unit 104 is arranged at an outlet of the dehumidification heat exchange section 101 and is used for detecting an outlet temperature at the outlet of the dehumidification heat exchange section 101. Meanwhile, a pipe temperature detection unit 105 is also provided to detect the temperature of the pipe for temperature feedback in the normal refrigeration and dehumidification mode.
The air conditioner also comprises a compressor, wherein an exhaust temperature detection unit is arranged at an exhaust port of the compressor and used for preventing the abnormal condition of shutdown caused by overhigh exhaust temperature of the compressor due to low circulation volume after the air conditioner enters a stable dehumidification mode.
In an alternative embodiment, the expansion valve in the dehumidification heat exchange section is also preceded by a silencer, and the silencer is a filter screen with 150 through holes. The silencer is used for preventing the phenomena of blockage and blockage when the expansion valve performs low flow control, and further ensuring the normal operation of the air conditioner.
It should be noted that: the unit "degree" of the temperature values in the above-described respective embodiments of the present invention may be "degrees centigrade".
According to the air conditioner, a heat exchange loop of an evaporator of the air conditioner is improved, a part of heat exchange loop pipe sections are used for dehumidification, a part of heat exchange loop pipe sections are used for refrigeration, and corresponding temperature detection units are arranged at an inlet and an outlet of the dehumidification heat exchange pipe sections; when the air conditioner enters the stable dehumidification mode to operate, the opening degree of the expansion valve, the frequency of the compressor and the rotating speed of the motor are adjusted according to the inlet temperature and the outlet temperature, so that the air conditioner can normally operate in the stable dehumidification mode. According to the technical scheme, under the condition that the equipment cost is not increased, stable dehumidification of the air conditioner can be achieved, temperature fluctuation is small, human body feeling comfort degree is good, and user experience is improved.
The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims (14)
1. A control method of an air conditioner is applied to the air conditioner and is characterized in that,
the air conditioner comprises an evaporator, a heat exchange loop of the evaporator comprises a dehumidification heat exchange section and a refrigeration heat exchange section, the dehumidification heat exchange section comprises a first heat exchange section for dehumidification, and a temperature detection unit is arranged on the dehumidification heat exchange section; the refrigeration heat-exchange section comprises a second heat-exchange section for refrigeration, and the refrigeration heat-exchange section is communicated with the dehumidification heat-exchange section;
after the air conditioner is started, the method comprises the following steps:
acquiring an operation mode of an air conditioner;
if the operation mode is the stable dehumidification mode, the control method of the air conditioner comprises the following steps:
acquiring a temperature value on the dehumidification heat exchange pipe section through the temperature detection unit;
and adjusting the opening degree of the expansion joint and the frequency of the compressor according to the temperature value, so that the inlet temperature is lower than the dew point temperature, and the outlet temperature is higher than the dew point temperature.
2. The control method of an air conditioner according to claim 1, wherein the temperature detection unit includes a first temperature detection unit and a second temperature detection unit;
the inlet of the dehumidification heat exchange section is provided with the first temperature detection unit for detecting the inlet temperature, and the outlet of the dehumidification heat exchange section is provided with the second temperature detection unit for detecting the outlet temperature;
if the operation mode is the stable dehumidification mode, the control method of the air conditioner comprises the following steps:
acquiring the inlet temperature and the outlet temperature of the dehumidification heat exchange section;
adjusting the opening of an expansion joint according to the inlet temperature to enable the inlet temperature to be lower than the dew point temperature;
and adjusting the frequency of the compressor according to the outlet temperature to enable the outlet temperature to be higher than the dew point temperature.
3. The method of claim 1, wherein the adjusting the opening of the expansion joint according to the inlet temperature such that the inlet temperature is lower than a dew point temperature comprises:
if the inlet temperature is lower than a preset first temperature threshold value, the opening degree of the expansion valve is larger as the inlet temperature is lower;
if the inlet temperature is higher than a preset second temperature threshold value, the opening degree of the expansion valve is smaller as the inlet temperature is higher;
the expansion valve opening remains constant if the inlet temperature is between the first temperature threshold and the second temperature threshold.
4. The method of claim 1, wherein the first temperature threshold is calculated by: acquiring the current compressor frequency in a stable dehumidification mode;
presetting a first temperature fluctuation parameter corresponding to the first temperature threshold;
and calculating according to the current compressor frequency and the first temperature fluctuation parameter to obtain a first temperature threshold value.
5. The control method of an air conditioner according to claim 1, wherein the second temperature threshold is calculated by: presetting a second temperature fluctuation parameter corresponding to the second temperature threshold value, calculating a difference value between the dew point temperature and the second temperature fluctuation parameter, and taking the difference value between the dew point temperature and the second temperature fluctuation parameter as the second temperature threshold value.
6. The method for controlling an air conditioner according to claim 1, wherein the method for calculating the dew point temperature includes: and obtaining an indoor relative humidity value and an indoor temperature value, and calculating the dew point temperature according to the indoor relative humidity value and the indoor temperature value.
7. The control method of an air conditioner according to claim 1, further comprising the steps of, in the stable dehumidification mode:
and acquiring the exhaust temperature of the exhaust port of the compressor, and adjusting the opening of the expansion valve according to the exhaust temperature to enable the exhaust temperature to be lower than a preset exhaust temperature threshold.
8. The control method of an air conditioner according to claim 1, further comprising the steps of, in the stable dehumidification mode:
the method comprises the steps of obtaining the current indoor temperature and the preset target indoor temperature, adjusting the frequency of a compressor down when the current indoor temperature is lower than the target indoor temperature, and adjusting the frequency of the compressor up when the current indoor temperature is higher than the target indoor temperature.
9. The method for controlling an air conditioner according to claim 1, wherein the obtaining of the operation mode of the air conditioner includes:
acquiring an operation mode of an air conditioner, and judging whether the air conditioner enters a stable dehumidification mode or not, wherein the method comprises the following steps:
acquiring an operation mode of an air conditioner;
acquiring an indoor relative humidity value, and if the indoor relative humidity value is lower than a preset indoor relative humidity threshold value, judging that the operation mode is a stable dehumidification mode; and/or the presence of a gas in the gas,
acquiring an indoor temperature value, and if the indoor temperature value is in a preset first temperature interval, judging that the operation mode is a stable dehumidification mode; and/or the presence of a gas in the gas,
acquiring an outdoor temperature value, and if the outdoor temperature value is in a preset second temperature interval, judging that the operation mode is a stable dehumidification mode; and/or the presence of a gas in the gas,
acquiring an indoor temperature value and an outdoor temperature value, calculating according to the indoor temperature value and the outdoor temperature value to obtain an indoor temperature difference value and an outdoor temperature difference value, and if the indoor temperature difference value and the outdoor temperature difference value are in a preset third temperature interval, judging that the operation mode is a stable dehumidification mode; and/or the presence of a gas in the atmosphere,
and receiving a remote control instruction input by a user, and judging that the air conditioner enters a stable dehumidification mode according to the remote control instruction.
10. The control method of an air conditioner according to claim 1, wherein in the stable dehumidification mode, the control method of an air conditioner further comprises the steps of:
determining whether the air conditioner exits the stable dehumidification mode, including:
the method comprises the steps of obtaining the running time of the air conditioner, and judging that the air conditioner exits a stable dehumidification mode when the running time of the air conditioner exceeds a preset first time threshold; and/or the presence of a gas in the gas,
acquiring the running time of the air conditioner, acquiring the current indoor relative humidity, and judging that the air conditioner exits the stable dehumidification mode if the running time of the air conditioner exceeds a preset second time threshold and the current indoor relative humidity is lower than the target indoor relative humidity; and/or the presence of a gas in the atmosphere,
acquiring the running time of the air conditioner, acquiring the current indoor temperature, and judging that the air conditioner exits the stable dehumidification mode if the running time of the air conditioner exceeds a preset third time threshold and the current indoor temperature is lower than the target indoor temperature; and/or the presence of a gas in the gas,
and receiving a remote control instruction input by a user, and judging that the air conditioner exits the stable dehumidification mode according to the remote control instruction.
11. The control method of an air conditioner according to claim 1, wherein in the stable dehumidification mode, the control method of an air conditioner further comprises the steps of:
and acquiring the target motor rotating speed of the stable dehumidification mode, and adjusting the motor rotating speed of the air conditioner according to the target motor rotating speed.
12. The control method of an air conditioner according to claim 1, wherein the number of stages of the first heat exchange section is 10 to 14 stages, and the number of stages of the second heat exchange section is 42 to 38 stages.
13. A control apparatus of an air conditioner, comprising:
the acquisition module is used for acquiring the operation mode of the air conditioner;
the operation module is used for controlling the air conditioner if the operation mode is a stable dehumidification mode, and the control method of the air conditioner comprises the following steps:
acquiring a temperature value on the dehumidification heat exchange section through the temperature detection unit;
and adjusting the opening degree of the expansion joint and the frequency of the compressor according to the temperature value, so that the inlet temperature is lower than the dew point temperature, and the outlet temperature is higher than the dew point temperature.
14. An air conditioner comprising: a memory, a processor, and a computer program stored in the memory that is executable by the processor, wherein: the processor implements the control method of the air conditioner according to any one of claims 1 to 12 when executing the computer program.
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