CN112682908A - Air conditioner condensation prevention control method and device, storage medium and air conditioner - Google Patents

Abstract

The invention provides an air conditioner anti-condensation control method, an air conditioner anti-condensation control device, a storage medium and an air conditioner, wherein the method comprises the following steps: when the air conditioner operates in a refrigerating mode, detecting whether the indoor environment temperature is smaller than or equal to a first preset temperature value, whether the outdoor environment temperature is smaller than or equal to a second preset temperature value and/or whether the indoor humidity is larger than a first preset humidity value; and when the detected indoor environment temperature is less than or equal to a first preset temperature value, the detected outdoor environment temperature is less than or equal to a second preset temperature value and/or the detected indoor humidity is greater than a first preset humidity value, controlling the air conditioner to enter a first condensation prevention control mode or a second condensation prevention control mode according to the state of the air guide mechanism of the indoor unit. The scheme provided by the invention can prevent condensation caused by large temperature difference at two sides of the air deflector.

Description

Air conditioner condensation prevention control method and device, storage medium and air conditioner

Technical Field

The invention relates to the field of control, in particular to an air conditioner condensation prevention control method and device, a storage medium and an air conditioner.

Background

At present, the change of the air sweeping direction of an air conditioner mainly depends on the periodic rotation of an air deflector to guide airflow to different directions, so that the condition that one side of two sides of the air deflector is low-temperature air blown out of an indoor unit and the other side is indoor ambient air in a refrigeration mode is determined, and the temperature difference between the two sides is about 10 ℃. The temperature difference of the two sides of the air deflector can cause condensation, the condensation can be seriously dripped to the ground, and the condensation can even drip to a household appliance below the wall-mounted air conditioner, so that potential safety hazards exist.

Disclosure of Invention

The invention mainly aims to overcome the defects of the prior art and provides an air conditioner condensation prevention control method, an air conditioner condensation prevention control device, a storage medium and an air conditioner, so as to solve the problem of condensation caused by large temperature difference of two sides of an air deflector in the prior art.

The invention provides an air conditioner anti-condensation control method on one hand, which comprises the following steps: when the air conditioner operates in a refrigerating mode, detecting whether the indoor environment temperature is smaller than or equal to a first preset temperature value, whether the outdoor environment temperature is smaller than or equal to a second preset temperature value and/or whether the indoor humidity is larger than a first preset humidity value; and when the detected indoor environment temperature is less than or equal to a first preset temperature value, the detected outdoor environment temperature is less than or equal to a second preset temperature value and/or the detected indoor humidity is greater than a first preset humidity value, controlling the air conditioner to enter a first condensation prevention control mode or a second condensation prevention control mode according to the state of the air guide mechanism of the indoor unit.

Optionally, when the indoor unit air guide mechanism is of a single air guide plate structure, controlling the air conditioner to enter a first condensation prevention control mode or a second condensation prevention control mode according to a state of the indoor unit air guide mechanism, including: if the air guide mechanism is in a third state, controlling the air conditioner to enter a first condensation prevention control mode, wherein when a third judgment condition is met, the air guide mechanism is in the third state; if the air guide mechanism is in a fourth state, controlling the air conditioner to enter a second condensation prevention control mode, wherein when a fourth judgment condition is met, the air guide mechanism is in the fourth state; the air guide mechanism of the indoor unit comprises a third air guide plate; the third determination condition includes: the third air deflector is positioned in a fifth angle interval; the fourth determination condition includes: the third air deflector is positioned in a sixth-angle interval; the condensation amount generated when the third air deflector is positioned in a fifth angle interval is less than that generated when the third air deflector is positioned in a sixth angle interval; or, under the condition that the indoor unit air guide mechanism is of a double-air guide plate structure, the air conditioner is controlled to enter a first condensation prevention control mode or a second condensation prevention control mode according to the state of the indoor unit air guide mechanism, and the method comprises the following steps: if the air guide mechanism is in a first state, controlling the air conditioner to enter a first condensation prevention control mode, wherein when a first judgment condition is met, the air guide mechanism is in the first state; and/or if the air guide mechanism is in a second state, controlling the air conditioner to enter a second condensation prevention control mode, wherein when a second determination condition is met, the air guide mechanism is in the second state; the air guide mechanism of the indoor unit comprises a first air guide plate and a second air guide plate; the first determination condition includes: the first air deflector is positioned in a first angle interval or the second air deflector is positioned in a second angle interval; the second determination condition includes: the first air deflector is positioned in a third angle interval or the second air deflector is positioned in a fourth angle interval; the condensation amount generated when the first air deflector is positioned in the first angle interval is less than that generated when the first air deflector is positioned in the third angle interval; and the condensation amount generated when the second air guide plate is positioned in the second angle interval is less than that generated when the second air guide plate is positioned in the fourth angle interval.

Optionally, the first preventerA condensation control mode comprising: controlling the compressor frequency to decrease to a first anti-condensation target frequency F_{Anti-condensation target 1}：

F_{Anti-condensation target 1}＝Fmax-F_{Anti-condensation 1}*k

And/or the presence of a gas in the gas,

the second anti-condensation control mode includes: controlling the compressor frequency to decrease to a second anti-condensation target frequency F_{Anti-condensation target 2}：

F_{Anti-condensation target 2}＝Fmax-F_{Anti-condensation 2}*k

Wherein, Fmax is the maximum operating frequency of the compressor, F_{Anti-condensation 1}The frequency parameter is a frequency parameter of a first anti-condensation control mode; f_{Anti-condensation 2}The frequency parameter is a frequency parameter of a second anti-condensation control mode; k is an anti-condensation correction coefficient; the condensation prevention correction coefficient is a constant and is determined according to the section of the difference between the indoor environment temperature and the indoor heat exchanger temperature in more than two preset temperature difference sections and the set wind level.

Optionally, the method further comprises: after the continuous operation time of the compressor of the air conditioner reaches a first preset time, starting to detect whether the indoor environment temperature is less than or equal to a first preset temperature value or not and whether the outdoor environment temperature is less than or equal to a second preset temperature value or not; and/or detecting whether the indoor environment temperature is less than or equal to a first preset temperature value and the outdoor environment temperature is less than or equal to a second preset temperature value under the condition that the air conditioner is not set to the preset operation mode.

Optionally, after controlling the air conditioner to enter the first condensation prevention control mode or the second condensation prevention control mode, the method further includes: detecting whether the indoor environment temperature is greater than a first preset temperature value and the outdoor environment temperature is greater than a second preset temperature value and/or detecting whether the indoor humidity is less than a second preset humidity value; when the detected indoor environment temperature is higher than a first preset temperature value and the outdoor environment temperature is higher than a second preset temperature value and/or the detected indoor humidity is lower than a second preset humidity value, controlling the frequency of the compressor to be increased to the frequency of the air conditioner during starting; and/or judging whether the air conditioner is set to a preset operation mode or not; under the condition that the air conditioner is set to be in the preset operation mode, controlling the frequency of the compressor to be increased to the frequency of the air conditioner during starting; and/or after the air conditioner continuously operates for a second preset time in the first anti-condensation control mode or the second anti-condensation control mode, controlling the frequency of the compressor to increase to the frequency of the air conditioner during starting.

In another aspect, the present invention provides an anti-condensation control apparatus for an air conditioner, including: the detection unit is used for detecting whether the indoor environment temperature is less than or equal to a first preset temperature value, whether the outdoor environment temperature is less than or equal to a second preset temperature value and/or whether the indoor humidity is greater than a first preset humidity value when the air conditioner operates in a refrigerating mode; and the control unit is used for controlling the air conditioner to enter a first condensation prevention control mode or a second condensation prevention control mode according to the state of the air guide mechanism of the indoor unit when the detection unit detects that the indoor environment temperature is less than or equal to a first preset temperature value and the outdoor environment temperature is less than or equal to a second preset temperature value and/or detects that the indoor humidity is greater than a first preset humidity value.

Optionally, the controlling unit, when the indoor unit air guiding mechanism is of a single air guiding plate structure, controls the air conditioner to enter the first condensation prevention control mode or the second condensation prevention control mode according to a state of the indoor unit air guiding mechanism, and includes: if the air guide mechanism is in a third state, controlling the air conditioner to enter a first condensation prevention control mode, wherein when a third judgment condition is met, the air guide mechanism is in the third state; if the air guide mechanism is in a fourth state, controlling the air conditioner to enter a second condensation prevention control mode, wherein when a fourth judgment condition is met, the air guide mechanism is in the fourth state; the air guide mechanism of the indoor unit comprises a third air guide plate; the third determination condition includes: the third air deflector is positioned in a fifth angle interval; the fourth determination condition includes: the third air deflector is positioned in a sixth-angle interval; the condensation amount generated when the third air deflector is positioned in a fifth angle interval is less than that generated when the third air deflector is positioned in a sixth angle interval; or, the control unit, when the indoor unit air guiding mechanism is in a double air guiding plate structure, controls the air conditioner to enter a first condensation prevention control mode or a second condensation prevention control mode according to the state of the indoor unit air guiding mechanism, and includes: if the air guide mechanism is in a first state, controlling the air conditioner to enter a first condensation prevention control mode, wherein when a first judgment condition is met, the air guide mechanism is in the first state; and/or if the air guide mechanism is in a second state, controlling the air conditioner to enter a second condensation prevention control mode, wherein when a second determination condition is met, the air guide mechanism is in the second state; the air guide mechanism of the indoor unit comprises a first air guide plate and a second air guide plate; the first determination condition includes: the first air deflector is positioned in a first angle interval or the second air deflector is positioned in a second angle interval; the second determination condition includes: the first air deflector is positioned in a third angle interval or the second air deflector is positioned in a fourth angle interval; the condensation amount generated when the first air deflector is positioned in the first angle interval is less than that generated when the first air deflector is positioned in the third angle interval; and the condensation amount generated when the second air guide plate is positioned in the second angle interval is less than that generated when the second air guide plate is positioned in the fourth angle interval.

Optionally, the first anti-condensation control mode includes: controlling the compressor frequency to decrease to a first anti-condensation target frequency F_{Anti-condensation target 1}：

F_{Anti-condensation target 1}＝Fmax-F_{Anti-condensation 1}*k

And/or the presence of a gas in the gas,

the second anti-condensation control mode includes: controlling the compressor frequency to decrease to a second anti-condensation target frequency F_{Anti-condensation target 2}：

F_{Anti-condensation target 2}＝Fmax-F_{Anti-condensation 2}*k

Wherein, Fmax is the maximum operating frequency of the compressor, F_{Anti-condensation 1}The frequency parameter is a frequency parameter of a first anti-condensation control mode; f_{Anti-condensation 2}The frequency parameter is a frequency parameter of a second anti-condensation control mode; k is an anti-condensation correction coefficient; the anti-condensation correction coefficient is a constant, rootAnd determining the interval in which the difference between the indoor environment temperature and the indoor heat exchanger temperature belongs to more than two preset temperature difference intervals and the set wind level.

Optionally, the detection unit is further configured to: after the continuous operation time of the compressor of the air conditioner reaches a first preset time, starting to detect whether the indoor environment temperature is less than or equal to a first preset temperature value or not and whether the outdoor environment temperature is less than or equal to a second preset temperature value or not; and/or, the device further comprises: a judging unit for judging whether the air conditioner is set to a preset operation mode; the detection unit is further configured to: and detecting whether the indoor environment temperature is less than or equal to a first preset temperature value and the outdoor environment temperature is less than or equal to a second preset temperature value under the condition of judging that the air conditioner is not set to be in a preset operation mode.

Optionally, the detection unit is further configured to: after the control unit controls the air conditioner to enter a first anti-condensation control mode or a second anti-condensation control mode, detecting whether the indoor environment temperature is greater than a first preset temperature value and the outdoor environment temperature is greater than a second preset temperature value, and/or detecting whether the indoor humidity is less than a second preset humidity value; the control unit is further configured to: when the detection unit detects that the indoor environment temperature is greater than a first preset temperature value and the outdoor environment temperature is greater than a second preset temperature value and/or detects that the indoor humidity is less than a second preset humidity value, controlling the frequency of the compressor to rise to the frequency of the air conditioner during starting; and/or, the device further comprises: the judging unit is used for judging whether the air conditioner is set to be in a preset operation mode or not after the control unit controls the air conditioner to enter a first condensation prevention control mode or a second condensation prevention control mode; the control unit is further configured to: under the condition that the judging unit judges that the air conditioner is set to be in the preset running mode, controlling the frequency of the compressor to rise to the frequency running when the air conditioner is started; and/or the control unit is further configured to: and after controlling the air conditioner to enter the first anti-condensation control mode or the second anti-condensation control mode to continuously operate for a second preset time, controlling the frequency of the compressor to increase to the frequency of the air conditioner when the air conditioner is started to operate.

A further aspect of the invention provides a storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of any of the methods described above.

Yet another aspect of the present invention provides an air conditioner comprising a processor, a memory, and a computer program stored on the memory and operable on the processor, wherein the processor implements the steps of any of the methods described above when executing the program.

The invention further provides an air conditioner, which comprises the air conditioner anti-condensation control device.

According to the technical scheme of the invention, whether the air conditioner enters the condensation prevention control is determined according to the indoor and outdoor environment temperature and/or the indoor humidity, and the condensation prevention mode entered by the air conditioner is controlled according to the state of the air deflector of the indoor unit, so that condensation caused by large temperature difference of two sides of the air deflector can be prevented, and the condensation is reduced to the minimum on the premise of not influencing the refrigerating effect of the whole air conditioner; prevent the condensation through the realization of adjustment compressor frequency to confirm specific frequency adjustment mode through indoor ambient temperature, indoor heat exchanger coil pipe temperature and windshield, not only promoted user's travelling comfort, still eliminated the hidden danger that the condensation water drips and pollutes ground or even short circuit household electrical appliances, multiple condensation mode combination of preventing, balanced refrigeration effect and condensation effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram illustrating an embodiment of an anti-condensation control method for an air conditioner according to the present invention;

FIG. 2 is a schematic method diagram of another embodiment of an anti-condensation control method for an air conditioner according to the present invention;

FIG. 3 is a schematic diagram illustrating an embodiment of an anti-condensation control method for an air conditioner according to the present invention;

FIG. 4 is a block diagram of an embodiment of an anti-condensation control device for an air conditioner according to the present invention;

fig. 5a is a schematic view of air outlet of an indoor unit of an air conditioner with a double air guide plate structure;

fig. 5b is a schematic air supply diagram of the air conditioner when the first air deflector is located in the first angle interval and the second air deflector is located in the fourth angle interval;

fig. 5c is a schematic air supply diagram of the air conditioner when the first air deflector is located in the third angle interval and the second air deflector is located in the second angle interval;

FIG. 5d is a schematic view of an air outlet of an indoor unit of an air conditioner with a single air guide plate structure;

FIG. 5e is a schematic air-conditioning blowing diagram when the third air guiding plate is located in the fifth angle interval;

fig. 5f is a schematic air-conditioning blowing diagram when the third air deflector is in the sixth angle interval.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the 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.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Fig. 1 is a method schematic diagram of an embodiment of an air conditioner condensation prevention control method provided by the invention.

As shown in fig. 1, according to an embodiment of the present invention, the air conditioner condensation prevention control method includes at least step S110 and step S120.

Step S110, when the air conditioner operates in a refrigerating mode, whether the indoor environment temperature is smaller than or equal to a first preset temperature value or not, whether the outdoor environment temperature is smaller than or equal to a second preset temperature value or not and/or whether the indoor humidity is larger than a first preset humidity value or not are detected.

Optionally, after the air conditioner is started for refrigeration, after the continuous operation time of the compressor of the air conditioner reaches a first preset time, whether the indoor environment temperature is less than or equal to a first preset temperature value and whether the outdoor environment temperature is less than or equal to a second preset temperature value and/or whether the indoor humidity is greater than a first preset humidity value is detected, so as to ensure the comfort of the indoor environment. For example, after a user starts the air conditioner, the running time of the compressor starts to be detected, when the compressor continuously runs for 30min, whether the indoor environment temperature is less than or equal to a first preset temperature value and whether the outdoor environment temperature is less than or equal to a second preset temperature value are detected, and the compressor does not act when the continuous running time of the compressor is less than 30 min.

Optionally, in a case that it is determined that the air conditioner is not set to the preset operation mode, it is detected whether the indoor ambient temperature is less than or equal to a first preset temperature value, whether the outdoor ambient temperature is less than or equal to a second preset temperature value, and/or whether the indoor humidity is greater than a first preset humidity value, where the first preset humidity value is, for example, 65%. The preset operation mode can be a cool feeling mode, namely a powerful refrigeration mode, the refrigeration requirement of the powerful refrigeration mode is higher than that of the ordinary refrigeration mode, for example, the set temperature of the powerful refrigeration mode is lower than that of the ordinary refrigeration mode. If the user sets the powerful cooling mode, the condensation prevention control mode is not entered (i.e., the first condensation prevention control mode or the second condensation prevention control mode is not entered). Optionally, after the continuous operation time of the compressor of the air conditioner reaches a first preset time, it is determined whether the air conditioner is set to a preset operation mode. For example, when the compressor is continuously operated for 30min, whether the user sets the cool mode is determined, if the user does not set the cool mode, whether the indoor environment temperature is less than or equal to a first preset temperature value and whether the outdoor environment temperature is less than or equal to a second preset temperature value and/or whether the indoor humidity is greater than a first preset humidity value are detected, and if the user sets the cool mode, the compressor does not operate.

And step S120, when the detected indoor environment temperature is less than or equal to a first preset temperature value, the outdoor environment temperature is less than or equal to a second preset temperature value and/or the detected indoor humidity is greater than a first preset humidity value, controlling the air conditioner to enter a first anti-condensation control mode or a second anti-condensation control mode according to the state of the air guide mechanism of the indoor unit.

When detecting the indoor ambient temperature T_{Inner ring}Less than or equal to a first preset temperature value T_{Preset temperature 1}And the outdoor ambient temperature T_{Outer ring}Less than or equal to a second preset temperature value T_{Preset temperature 2}(T_{Inner ring}＜T_{Preset temperature 1}And T_{Outer ring}＜T_{Preset temperature 2}) And/or detecting that the indoor humidity H is greater than a first preset humidity value H_{Preset humidity 1}(H＞H_{Preset humidity 1}) And then, starting to detect the state of the air guide mechanism of the indoor unit. If the indoor and outdoor ambient temperatures are detected to be lower than the preset temperatures respectively, the requirement of the user on the refrigerating capacity is not strong, if the condition is not met, the user feels very hot when the indoor and outdoor temperatures are high, but the air conditioner enters the condensation-preventing frequency-reducing mode, the refrigerating effect is influenced, the comfort of the user is influenced, and therefore, when the indoor ambient temperature T is detected_{Inner ring}Less than or equal to a first preset temperature value T_{Preset temperature 1}And the outdoor ambient temperature T_{Outer ring}Less than or equal to a second preset temperature value T_{Preset temperature 2}Then, the anti-condensation control mode is entered. If the detected indoor humidity H is not more than the first preset humidity value H_{Preset humidity 1}The indoor humidity is detected to be less than a first preset humidity value H_{Preset humidity 1}Then, the anti-condensation liquid is enteredAnd (4) controlling the mode.

In one embodiment, the first anti-condensation control mode includes: controlling the compressor frequency to decrease to a first anti-condensation target frequency F_{Anti-condensation target 1}: and/or, the second anti-condensation control mode includes: controlling the compressor frequency to decrease to a second anti-condensation target frequency F_{Anti-condensation target 2}：

F_{Anti-condensation target 1}＝Fmax-F_{Anti-condensation 1}*k

F_{Anti-condensation target 2}＝Fmax-F_{Anti-condensation 2}*k

Wherein, Fmax is the maximum operating frequency of the compressor, F_{Anti-condensation 1}The frequency parameter is a frequency parameter of a first anti-condensation control mode; f_{Anti-condensation 2}The frequency parameter is a frequency parameter of a second anti-condensation control mode; and k is an anti-condensation correction coefficient. F_{Anti-condensation 1}＜F_{Anti-condensation 2}Therefore, the second anti-condensation target frequency is lower than the first anti-condensation target frequency.

The condensation prevention correction coefficient is a constant and can be determined according to the section of the difference between the indoor environment temperature and the indoor heat exchanger temperature in more than two preset temperature difference sections and the set wind gear, and different condensation prevention correction coefficients correspond to different temperature difference sections and set wind gears.

For example, table 1 is a table of correspondence between different temperature difference intervals and different anti-condensation correction coefficients corresponding to the set wind gear according to the embodiment of the present invention. Can be based on the indoor ambient temperature T_{Inner ring}Temperature T of indoor heat exchanger_{Inner pipe}The difference between the temperature difference and the current wind gear in the following table 1 determines the corresponding anti-condensation correction coefficient.

Temperature difference between inner ring and inner tube	Super-strong gear	High wind shield	Middle wind shield	Low wind shield	Mute gear
						(TInner ring－TInner pipe)≤X℃	Constant number	Constant number	Constant number	Constant number	Constant number
X℃＜(TInner ring－TInner pipe)≤Y℃	Constant number	Constant number	Constant number	Constant number	Constant number
						Z℃＜(TInner ring－TInner pipe)	Constant number	Constant number	Constant number	Constant number	Constant number

TABLE 1

X, Y, Z in table 1 indicate different temperature values, and the constants in table 1 are different and can be set according to different air conditioning systems.

In some embodiments, the air guiding mechanism of the indoor unit is a single air guiding plate structure, and includes a third air guiding plate. The third air deflector is characterized in that the wind sweeping interval comprises a fifth angle interval and a sixth angle interval, namely the fifth angle interval and the sixth angle interval jointly form the wind sweeping interval range of the third air deflector, and the third air deflector cannot be positioned in the sixth angle interval when positioned in the fifth angle interval.

The condensation amount generated when the third air deflector is positioned in a fifth angle interval is different from that generated when the third air deflector is positioned in a sixth angle interval, when the third air deflector is positioned in the fifth angle interval, the wind on the two sides of the third air deflector is uniformly received, and when the third air deflector is positioned in the sixth angle interval, the wind on the two sides of the third air deflector is not uniformly received. Therefore, the condensation amount generated when the third air guiding plate is in the fifth angle interval is less than that generated when the third air guiding plate is in the sixth angle interval.

Optionally, the angle ranges of the fifth angle interval and the sixth angle interval are determined in advance according to the angle range of the wind sweeping interval of the third air deflector (i.e., the wind sweeping angle range, the rotation angle with the rotation axis as the center of the circle) and the wind receiving conditions of the two sides of the wind sweeping interval of the third air deflector when the third air deflector is at different angle positions.

And if the air guide mechanism is in a third state, controlling the air conditioner to enter a first condensation prevention control mode, wherein when a third judgment condition is met, the air guide mechanism is in the third state. The third determination condition includes: the third air deflector is positioned in a fifth angle interval.

And if the air guide mechanism is in a fourth state, controlling the air conditioner to enter a second condensation prevention control mode, wherein when a fourth judgment condition is met, the air guide mechanism is in the fourth state. The fourth determination condition includes: the third air deflector is positioned in a sixth-angle interval.

For example, fig. 5d is a schematic view of an air conditioner indoor unit air outlet with a single air guide plate structure. Fig. 5e is a schematic air-conditioning blowing diagram when the third air deflector is in the fifth angle interval. As shown in fig. 5d and 5e, when the third air deflector 3 is located in the fifth angle interval, the refrigerated cold air is blown out from the air duct, and is blown to the indoor space to be cooled after passing through the third air deflector 3, the third air deflector 3 is parallel to the moving direction of the cold air, the air on both sides of the third air deflector is uniformly blown, the surfaces on both sides of the third air deflector 3 are covered by the cold air, and the normal temperature air basically cannot contact with the low temperature air deflector, so that little or no condensation is generated, and the first condensation prevention control mode can be entered.

Fig. 5f is a schematic air-conditioning blowing diagram when the third air deflector is in the sixth angle interval. As shown in fig. 5d and 5f, when the third air deflector 3 is located in the sixth temperature range, the refrigerated cold air is blown out from the air duct, and then blown to the interior to cool after passing through the third air deflector 3, most of the cold air is pressed to blow out from the lower side under the influence of the third air deflector 3, only a small amount of cold air can leak out from the gap between the upper end of the third air deflector 3 and the air duct, and cannot completely cover the upper surface of the third air deflector 3, the wind on both sides of the third air deflector is not uniform, the surface temperature of the cold air on one side is reduced, when the water vapor in the indoor normal temperature air contacts the surface of the low-temperature air deflector, the heat is released and condensed into small water drops attached to the third air deflector, and therefore the second condensation prevention control mode needs to be entered.

In other specific embodiments, the air guiding mechanism of the indoor unit has a dual air guiding plate structure, and includes a first air guiding plate and a second air guiding plate. The wind sweeping interval of the first air deflector comprises a first angle interval and a third angle interval, namely the first angle interval and the third angle interval jointly form a wind sweeping interval range of the first air deflector, and the first air deflector cannot be located in the third angle interval when located in the first angle interval.

The second air deflector is arranged in the second angle interval, and the second air deflector is arranged in the fourth angle interval.

And if the air guide mechanism is in the first state, controlling the air conditioner to enter a first condensation prevention control mode, wherein when a first judgment condition is met, the air guide mechanism is in the first state. The first determination condition includes: the first air deflector is located in a first angle interval and/or the second air deflector is located in a second angle interval.

And if the air guide mechanism is in a second state, controlling the air conditioner to enter a second condensation prevention control mode, wherein when a second determination condition is met, the air guide mechanism is in the second state. The second determination condition includes: the first air deflector is located in a third angle interval or the second air deflector is located in a fourth angle interval.

Optionally, when the first air deflector is located in the first angle interval, the wind on both sides of the first air deflector is uniform, and when the first air deflector is located in the third angle interval, the wind on both sides of the first air deflector is non-uniform. Therefore, the condensation amount generated when the first air guide plate is in the first angle interval is less than that generated when the first air guide plate is in the third angle interval. Optionally, the angle ranges of the first angle interval and the third angle interval are determined in advance according to the angle range of the wind sweeping interval of the first wind deflector (i.e., the wind sweeping angle range, the rotation angle with the rotation axis as the center of the circle) and the wind receiving conditions of two sides of the wind sweeping interval of the first wind deflector at different angle positions.

Similarly, when the second air deflector is located in the second angle interval, the wind on the two sides of the second air deflector is uniform, and when the second air deflector is located in the fourth angle interval, the wind on the two sides of the second air deflector is nonuniform. Therefore, the condensation amount generated when the second air guiding plate is located in the second angle interval is less than that generated when the second air guiding plate is located in the fourth angle interval. Optionally, the angle ranges of the second angle interval and the fourth angle interval are determined in advance according to the angle range of the wind sweeping interval of the second wind deflector (i.e., the wind sweeping angle range, the rotation angle with the rotation axis as the center of the circle) and the wind receiving conditions of two sides of the wind sweeping interval of the second wind deflector when the second wind deflector is at different angle positions.

For example, fig. 5a is a schematic view of an air outlet of an air conditioning indoor unit with a dual air guide plate structure. Fig. 5b is a schematic air-conditioning blowing diagram when the first air deflector is in the first angle interval and the second air deflector is in the fourth angle interval. Fig. 5c is a schematic air-conditioning blowing diagram when the first air deflector is in the third angle interval and the second air deflector is in the second angle interval. As shown in fig. 5b and 5c, when the first air deflector 1 is located in the first angle interval or the second air deflector 2 is located in the second angle interval, the first air deflector 1 or the second air deflector 2 is parallel to the movement direction of the cold air, the air is uniformly blown to both sides of the first air deflector 1 or the second air deflector 2, the surfaces of both sides of the first air deflector 1 or the second air deflector 2 are covered by the cold air, and the normal temperature air basically cannot contact the low temperature air deflector, so that little or no condensation is generated, and the first anti-condensation control mode can be entered.

As shown in fig. 5b and 5c, when the first air deflector 1 is located in the third angle interval or the second air deflector 2 is located in the fourth angle interval, the refrigerated cold air is blown out from the air duct, and is blown into the room to cool after passing through the first air deflector 1 or the second air deflector 2, most of the cold air is pressed under the influence of the first air deflector 1 or the second air deflector 2 and is blown out, only a small amount of cold air can leak out from the gap between the upper end of the first air deflector 1 or the second air deflector 2 and the air duct, the upper surface of the air deflector cannot be completely covered, the air on both sides of the air deflector is not uniform, the surface temperature of the air on one side is reduced due to the influence of the cold air, when water vapor in the room normal temperature air contacts the surface of the air deflector at the low temperature, heat is released and condensed into small water beads attached to the air deflector, and therefore the second anti.

Optionally, when the state of the air guide mechanism of the indoor unit changes, the air conditioner is controlled to switch between the first condensation prevention control mode and the second condensation prevention control mode according to the state change of the air guide mechanism. For example, when the position of the first air deflector and/or the second air deflector changes to cause the air guide mechanism to switch between the first state and the second state, the air conditioner is controlled to switch between the first condensation prevention control mode and the second condensation prevention control mode according to the state change of the air guide mechanism.

The condensation is that normal temperature steam contacts the surface of low temperature and releases heat to condense into water drops, the air deflector condensation is that one side of the air deflector receives cold wind, which causes the temperature of the air deflector to be reduced, the other side of the air deflector can not blow cold wind, which causes the other side to be exposed in normal temperature air, when the steam in the air contacts the surface of the low temperature air deflector, the condensation is generated, the frequency of the compressor is reduced, which can increase the outlet air temperature of the air conditioner, the temperature on the surface of the air deflector can be increased, the temperature difference between the surface of the air deflector and the steam in the air is reduced, the heat release of the steam can be reduced, and the condensation is reduced.

Fig. 2 is a schematic method diagram of another embodiment of an air conditioner anti-condensation control method provided by the invention.

As shown in fig. 2, according to another embodiment of the present invention, the air conditioner condensation prevention control method further includes step S130 and step S140.

Step S130, detecting whether the indoor ambient temperature is greater than a first preset temperature value, whether the outdoor ambient temperature is greater than a second preset temperature value, and/or detecting whether the indoor humidity is less than a second preset humidity value.

Step S140, when the detected indoor environment temperature is greater than the first preset temperature value and the outdoor environment temperature is greater than the second preset temperature value and/or the detected indoor humidity is less than the second preset humidity value, controlling the frequency of the compressor to be increased to the frequency of the air conditioner during starting.

Specifically, after the air conditioner is controlled to enter the first condensation prevention control mode or the second condensation prevention control mode, whether the indoor environment temperature is greater than a first preset temperature value and whether the outdoor environment temperature is greater than a second preset temperature value and/or whether the indoor humidity is less than a second preset humidity value is detected. And when the detected indoor environment temperature is greater than a first preset temperature value and the outdoor environment temperature is greater than a second preset temperature value and/or the detected indoor humidity is less than a second preset humidity value, controlling the frequency of the compressor to rise to the frequency of the air conditioner during starting, namely exiting from the first anti-condensation control mode or the second anti-condensation control mode. For example, the anti-condensation control mode is exited when the indoor humidity is detected to be < 55%, and the current state is maintained when the indoor humidity is between 55% and 65%.

Optionally, after controlling the air conditioner to enter the first condensation prevention control mode or the second condensation prevention control mode, the method further includes: judging whether the air conditioner is set to a preset operation mode or not; and under the condition that the air conditioner is set to the preset operation mode, controlling the frequency of the compressor to be increased to the frequency operation when the air conditioner is started, namely exiting from the first condensation prevention control mode or the second condensation prevention control mode.

Optionally, after the air conditioner continuously operates in the first condensation prevention control mode or the second condensation prevention control mode for a second preset time, controlling the frequency of the compressor to increase to the frequency of the air conditioner during startup, that is, exiting from the first condensation prevention control mode or the second condensation prevention control mode. For example, after entering the anti-condensation control mode, whether the compressor continuously operates for 120min is judged, if the compressor continuously operates for 120min, the frequency of the compressor is increased to the frequency when the air conditioner is just started to operate, and the anti-condensation control mode is exited.

In order to clearly illustrate the technical solution of the present invention, an execution flow of the air conditioner condensation prevention control method provided by the present invention is described below with a specific embodiment.

Fig. 3 is a schematic method diagram of an embodiment of an anti-condensation control method for an air conditioner according to the present invention. As shown in fig. 3, taking the dual wind deflector structure as an example (refer to fig. 5a), the wind deflector 1 is a first wind deflector, and the wind deflector 2 is a second wind deflector; a first determination condition which is a determination condition 1, and a second determination condition which is a determination condition 2; the angle intervals 1, 2, 3 and 4 are respectively a first angle interval, a second angle interval, a third angle interval and a fourth angle interval; the condensation prevention control mode 1 is a first condensation prevention control mode, and the condensation prevention control mode 2 is a second condensation prevention control mode.

Step S1, after the air conditioner is started, the running time of the compressor starts to be accumulated, when the compressor runs continuously for 30min (first preset time), the judgment of the next step S2 is carried out, and the compressor does not act when the running time of the compressor is less than 30 min;

step S2, when the compressor continuously runs for 30min, starting to judge whether the user sets the cool feeling mode, if the user does not set the cool feeling mode, entering the judgment of the next step S3, if the user sets the cool feeling mode, then not operating;

step S3, if the user does not set the cool feeling mode, the determination of the indoor environment temperature T is started_{Inner ring}And outdoor ambient temperature T_{Outer ring}When T is_{Inner ring}≤T_{Preset temperature 1}And T_{Outer ring}≤T_{Preset temperature 2}If the condition is not met, the operation is stopped;

step S4, if T_{Inner ring}≤T_{Preset temperature 1}And T_{Outer ring}≤T_{Preset temperature 2}Starting to detect the state of an air deflector of the indoor unit, and synchronously judging whether a judgment condition 1 and a judgment condition 2 are met;

in step S5, if the determination condition 1 is satisfied, that is, if the air guide plate 1 is in the angle interval 1 or the air guide plate 2 is in the angle interval 2, the control mode enters the condensation prevention control mode 1.

In step S6, if the determination condition 2 is satisfied, that is, if the air guide plate 1 is in the angle interval 3 or the air guide plate 2 is in the angle interval 4, the control mode enters the condensation prevention control mode 2.

Whether the judgment condition 1 or the judgment condition 2 is met or both judgment conditions are not met, the state of the air guide plate is continuously monitored; if the position change of the air deflector is switched between the states meeting the judgment condition 1 and the judgment condition 2, synchronously switching between the condensation prevention control mode 1 and the condensation prevention control mode 2;

step S7, after entering into the condensation prevention control mode 1 or the condensation prevention control mode 2, continuously monitoring T_{Inner ring}And T_{Outer ring}Whether or not to satisfy T respectively_{Inner ring}＞T_{Preset temperature 1}、T_{Outer ring}＞T_{Preset temperature 2}If yes, the frequency of the compressor is increased to the frequency when the air conditioner is started, namely the compressor exits from the anti-condensation mode, and the step S1 is returned;

step S8, continuously monitoring whether the user sets a cool feeling mode, if yes, increasing the frequency of the compressor to the frequency running when the air conditioner is just started, and returning to the step S1;

step S9, judging whether the compressor continuously runs for 120min after entering the anti-condensation control mode 1 or the anti-condensation control mode 2, if so, increasing the frequency of the compressor to the frequency running when the air conditioner is just started, namely exiting the anti-condensation mode, and returning to the step S1; and if the continuous operation of the compressor does not reach 120min, the compressor does not operate.

Fig. 4 is a schematic structural diagram of an embodiment of an air conditioner condensation prevention control device provided by the invention. As shown in fig. 4, the air conditioner condensation prevention control apparatus 100 includes a detection unit 110 and a control unit 120.

The detection unit 110 is configured to detect whether the indoor environment temperature is less than or equal to a first preset temperature value and whether the outdoor environment temperature is less than or equal to a second preset temperature value and/or whether the indoor humidity is greater than a first preset humidity value when the air conditioner operates in a cooling mode.

Optionally, after the air conditioner is started up for cooling, after the continuous operation time of the compressor of the air conditioner reaches a first preset time, the detecting unit 110 starts to detect whether the indoor environment temperature is less than or equal to a first preset temperature value, whether the outdoor environment temperature is less than or equal to a second preset temperature value, and/or whether the indoor humidity is greater than a first preset humidity value, so as to ensure the comfort of the indoor environment. For example, after a user starts the air conditioner, the running time of the compressor starts to be detected, when the compressor continuously runs for 30min, whether the indoor environment temperature is less than or equal to a first preset temperature value and whether the outdoor environment temperature is less than or equal to a second preset temperature value are detected, and the compressor does not act when the continuous running time of the compressor is less than 30 min.

Optionally, the apparatus 100 may further include a determining unit (not shown) for determining whether the air conditioner is set to a preset operation mode; in the case that the determining unit determines that the air conditioner is not set to the preset operation mode, the detecting unit 110 detects whether the indoor ambient temperature is less than or equal to a first preset temperature value, whether the outdoor ambient temperature is less than or equal to a second preset temperature value, and/or whether the indoor humidity is greater than a first preset humidity value, for example, 65%. The preset operation mode can be a cool feeling mode, namely a powerful refrigeration mode, the refrigeration requirement of the powerful refrigeration mode is higher than that of the ordinary refrigeration mode, for example, the set temperature of the powerful refrigeration mode is lower than that of the ordinary refrigeration mode. If the user sets the powerful cooling mode, the condensation prevention control mode is not entered (i.e., the first condensation prevention control mode or the second condensation prevention control mode is not entered).

Optionally, the determining unit determines whether the air conditioner is set to a preset operation mode after a continuous operation time of a compressor of the air conditioner reaches a first preset time. For example, when the compressor is continuously operated for 30min, whether the user sets the cool feeling mode is determined, if the user does not set the cool feeling mode, whether the indoor environment temperature is less than or equal to a first preset temperature value and whether the outdoor environment temperature is less than or equal to a second preset temperature value and/or whether the indoor humidity is greater than a first preset humidity value are detected, and if the user sets the cool feeling mode, the compressor does not operate.

The control unit 120 is configured to control the air conditioner to enter a first condensation prevention control mode or a second condensation prevention control mode according to a state of the indoor unit air guide mechanism when the detection unit 110 detects that the indoor environment temperature is less than or equal to a first preset temperature value and the outdoor environment temperature is less than or equal to a second preset temperature value and/or detects that the indoor humidity is greater than a first preset humidity value.

When detecting the indoor ambient temperature T_{Inner ring}Less than or equal to a first preset temperature value T_{Preset temperature 1}And the outdoor ambient temperature T_{Outer ring}Less than or equal to a second preset temperature value T_{Preset temperature 2}(T_{Inner ring}＜T_{Preset temperature 1}And T_{Outer ring}＜T_{Preset temperature 2}) And/or detecting that the indoor humidity H is greater than a first preset humidity value H_{Preset humidity 1}(H＞H_{Preset humidity 1}) And then, starting to detect the state of the air guide mechanism of the indoor unit. If the indoor and outdoor ambient temperatures are detected to be lower than the preset temperatures respectively, the requirement of the user on the refrigerating capacity is not strong, if the condition is not met, the user feels very hot when the indoor and outdoor temperatures are high, but the air conditioner enters the condensation-preventing frequency-reducing mode, the refrigerating effect is influenced, the comfort of the user is influenced, and therefore, when the indoor ambient temperature T is detected_{Inner ring}Less than or equal to a first preset temperature value T_{Preset temperature 1}And the outdoor ambient temperature T_{Outer ring}Less than or equal to a second preset temperature value T_{Preset temperature 2}Then, the anti-condensation control mode is entered. If detecting indoor humidityThe degree H is not more than a first preset humidity value H_{Preset humidity 1}The indoor humidity is detected to be less than a first preset humidity value H_{Preset humidity 1}Then, the anti-condensation control mode is entered.

In one embodiment, the first anti-condensation control mode includes: controlling the compressor frequency to decrease to a first anti-condensation target frequency F_{Anti-condensation target 1}: and/or, the second anti-condensation control mode includes: controlling the compressor frequency to decrease to a second anti-condensation target frequency F_{Anti-condensation target 2}：

F_{Anti-condensation target 1}＝Fmax-F_{Anti-condensation 1}*k

F_{Anti-condensation target 2}＝Fmax-F_{Anti-condensation 2}*k

Wherein, Fmax is the maximum operating frequency of the compressor, F_{Anti-condensation 1}The frequency parameter is a frequency parameter of a first anti-condensation control mode; f_{Anti-condensation 2}The frequency parameter is a frequency parameter of a second anti-condensation control mode; and k is an anti-condensation correction coefficient. F_{Anti-condensation 1}＜F_{Anti-condensation 2}Therefore, the second anti-condensation target frequency is lower than the first anti-condensation target frequency.

The condensation prevention correction coefficient is a constant and can be determined according to the section of the difference between the indoor environment temperature and the indoor heat exchanger temperature in more than two preset temperature difference sections and the set wind gear, and different condensation prevention correction coefficients correspond to different temperature difference sections and set wind gears.

For example, table 1 is a table of correspondence between different temperature difference intervals and different anti-condensation correction coefficients corresponding to the set wind gear according to the embodiment of the present invention. Can be based on the indoor ambient temperature T_{Inner ring}Temperature T of indoor heat exchanger_{Inner pipe}The difference between the temperature difference and the current wind gear in the following table 1 determines the corresponding anti-condensation correction coefficient.

Temperature difference between inner ring and inner tube	Super-strong gear	High wind shield	Middle wind shield	Low wind shield	Mute gear
						(TInner ring－TInner pipe)≤X℃	Constant number	Constant number	Constant number	Constant number	Constant number
X℃＜(TInner ring－TInner pipe)≤Y℃	Constant number	Constant number	Constant number	Constant number	Constant number
						Z℃＜(TInner ring－TInner pipe)	Constant number	Constant number	Constant number	Constant number	Constant number

TABLE 1

X, Y, Z in table 1 indicate different temperature values, and the constants in table 1 are different and can be set according to different air conditioning systems.

In some embodiments, the air guiding mechanism of the indoor unit is a single air guiding plate structure, and includes a third air guiding plate. The third air deflector is characterized in that the wind sweeping interval comprises a fifth angle interval and a sixth angle interval, namely the fifth angle interval and the sixth angle interval jointly form the wind sweeping interval range of the third air deflector, and the third air deflector cannot be positioned in the sixth angle interval when positioned in the fifth angle interval.

The condensation amount generated when the third air deflector is positioned in a fifth angle interval is different from that generated when the third air deflector is positioned in a sixth angle interval, when the third air deflector is positioned in the fifth angle interval, the wind on the two sides of the third air deflector is uniformly received, and when the third air deflector is positioned in the sixth angle interval, the wind on the two sides of the third air deflector is not uniformly received. Therefore, the condensation amount generated when the third air guiding plate is in the fifth angle interval is less than that generated when the third air guiding plate is in the sixth angle interval.

Optionally, the angle ranges of the fifth angle interval and the sixth angle interval are determined in advance according to the angle range of the wind sweeping interval of the third air deflector (i.e., the wind sweeping angle range, the rotation angle with the rotation axis as the center of the circle) and the wind receiving conditions of the two sides of the wind sweeping interval of the third air deflector when the third air deflector is at different angle positions.

If the air guiding mechanism is in the third state, the control unit 120 controls the air conditioner to enter the first condensation prevention control mode, wherein when a third determination condition is met, the air guiding mechanism is in the third state. The third determination condition includes: the third air deflector is positioned in a fifth angle interval.

If the air guiding mechanism is in the fourth state, the control unit 120 controls the air conditioner to enter the second condensation prevention control mode, wherein when a fourth determination condition is met, the air guiding mechanism is in the fourth state. The fourth determination condition includes: the third air deflector is positioned in a sixth-angle interval.

For example, fig. 5d is a schematic view of an air conditioner indoor unit air outlet with a single air guide plate structure. Fig. 5e is a schematic air-conditioning blowing diagram when the third air deflector is in the fifth angle interval. As shown in fig. 5d and 5e, when the third air deflector 3 is located in the fifth angle interval, the refrigerated cold air is blown out from the air duct, and is blown to the indoor space to be cooled after passing through the third air deflector 3, the third air deflector 3 is parallel to the moving direction of the cold air, the air on both sides of the third air deflector is uniformly blown, the surfaces on both sides of the third air deflector 3 are covered by the cold air, and the normal temperature air basically cannot contact with the low temperature air deflector, so that little or no condensation is generated, and the first condensation prevention control mode can be entered.

Fig. 5f is a schematic air-conditioning blowing diagram when the third air deflector is in the sixth angle interval. As shown in fig. 5d and 5f, when the third air deflector 3 is located in the sixth temperature range, the refrigerated cold air is blown out from the air duct, and then blown to the interior to cool after passing through the third air deflector 3, most of the cold air is pressed to blow out from the lower side under the influence of the third air deflector 3, only a small amount of cold air can leak out from the gap between the upper end of the third air deflector 3 and the air duct, and cannot completely cover the upper surface of the third air deflector 3, the wind on both sides of the third air deflector is not uniform, the surface temperature of the cold air on one side is reduced, when the water vapor in the indoor normal temperature air contacts the surface of the low-temperature air deflector, the heat is released and condensed into small water drops attached to the third air deflector, and therefore the second condensation prevention control mode needs to be entered.

In other specific embodiments, the air guiding mechanism of the indoor unit has a dual air guiding plate structure, and includes a first air guiding plate and a second air guiding plate. The wind sweeping interval of the first air deflector comprises a first angle interval and a third angle interval, namely the first angle interval and the third angle interval jointly form a wind sweeping interval range of the first air deflector, and the first air deflector cannot be located in the third angle interval when located in the first angle interval. The second air deflector is arranged in the second angle interval, and the second air deflector is arranged in the fourth angle interval.

If the air guiding mechanism is in the first state, the control unit 120 controls the air conditioner to enter a first condensation prevention control mode, wherein when a first determination condition is met, the air guiding mechanism is in the first state. The first determination condition includes: the first air deflector is located in a first angle interval and/or the second air deflector is located in a second angle interval. If the air guiding mechanism is in the second state, the control unit 120 controls the air conditioner to enter a second condensation prevention control mode, wherein when a second determination condition is met, the air guiding mechanism is in the second state. The second determination condition includes: the first air deflector is located in a third angle interval or the second air deflector is located in a fourth angle interval.

Optionally, when the first air deflector is located in the first angle interval, the wind on both sides of the first air deflector is uniform, and when the first air deflector is located in the third angle interval, the wind on both sides of the first air deflector is non-uniform. Therefore, the condensation amount generated when the first air guide plate is in the first angle interval is less than that generated when the first air guide plate is in the third angle interval. Optionally, the angle ranges of the first angle interval and the third angle interval are determined in advance according to the angle range of the wind sweeping interval of the first wind deflector (i.e., the wind sweeping angle range, the rotation angle with the rotation axis as the center of the circle) and the wind receiving conditions of two sides of the wind sweeping interval of the first wind deflector at different angle positions.

Similarly, when the second air deflector is located in the second angle interval, the wind on the two sides of the second air deflector is uniform, and when the second air deflector is located in the fourth angle interval, the wind on the two sides of the second air deflector is nonuniform. Therefore, the condensation amount generated when the second air guiding plate is located in the second angle interval is less than that generated when the second air guiding plate is located in the fourth angle interval. Optionally, the angle ranges of the second angle interval and the fourth angle interval are determined in advance according to the angle range of the wind sweeping interval of the second wind deflector (i.e., the wind sweeping angle range, the rotation angle with the rotation axis as the center of the circle) and the wind receiving conditions of two sides of the wind sweeping interval of the second wind deflector when the second wind deflector is at different angle positions.

For example, fig. 5a is a schematic view of an air outlet of an air conditioning indoor unit with a dual air guide plate structure. Fig. 5b is a schematic air-conditioning blowing diagram when the first air deflector is in the first angle interval and the second air deflector is in the fourth angle interval. Fig. 5c is a schematic air-conditioning blowing diagram when the first air deflector is in the third angle interval and the second air deflector is in the second angle interval. As shown in fig. 5b and 5c, when the first air deflector is in the first angle interval or the second air deflector is in the second angle interval, the first air deflector 1 or the second air deflector 2 is parallel to the movement direction of the cold air, the air is uniformly blown to both sides of the first air deflector 1 or the second air deflector 2, the surfaces of both sides of the first air deflector 1 or the second air deflector 2 are covered by the cold air, and the normal temperature air basically cannot contact with the low temperature air deflector, so that little or no condensation is generated, and the first anti-condensation control mode can be entered;

as shown in fig. 5b and 5c, when the first air deflector 1 is located in the third angle interval or the second air deflector 2 is located in the fourth angle interval, the refrigerated cold air is blown out from the air duct, and is blown into the room to cool after passing through the first air deflector 1 or the second air deflector 2, most of the cold air is pressed under the influence of the first air deflector 1 or the second air deflector 2 and is blown out, only a small amount of cold air can leak out from the gap between the upper end of the first air deflector 1 or the second air deflector 2 and the air duct, the upper surface of the air deflector cannot be completely covered, the air on both sides of the air deflector is not uniform, the surface temperature of the air on one side is reduced due to the influence of the cold air, when water vapor in the room normal temperature air contacts the surface of the air deflector at the low temperature, heat is released and condensed into small water beads attached to the air deflector, and therefore the second anti.

Optionally, the control unit 120 is further configured to: and when the state of the air guide mechanism of the indoor unit changes, controlling the air conditioner to switch between the first condensation prevention control mode and the second condensation prevention control mode according to the state change of the air guide mechanism. For example, when the position of the first air deflector and/or the second air deflector changes to cause the air guide mechanism to switch between the first state and the second state, the air conditioner is controlled to switch between the first condensation prevention control mode and the second condensation prevention control mode according to the state change of the air guide mechanism.

Optionally, the detection unit 110 is further configured to: after the control unit 110 controls the air conditioner to enter the first anti-condensation control mode or the second anti-condensation control mode, whether the indoor ambient temperature is greater than a first preset temperature value and whether the outdoor ambient temperature is greater than a second preset temperature value and/or whether the indoor humidity is less than a second preset humidity value is detected. The control unit 120 is further configured to: when the detection unit 110 detects that the indoor environment temperature is greater than a first preset temperature value and the outdoor environment temperature is greater than a second preset temperature value and/or detects that the indoor humidity is less than a second preset humidity value, the frequency of the compressor is controlled to be increased to the frequency when the air conditioner is started to operate.

Specifically, after the control unit 120 controls the air conditioner to enter the first anti-condensation control mode or the second anti-condensation control mode, the detection unit 110 detects whether the indoor ambient temperature is greater than a first preset temperature value and the outdoor ambient temperature is greater than a second preset temperature value, and/or detects whether the indoor humidity is less than a second preset humidity value. When the detection unit 110 detects that the indoor ambient temperature is greater than the first preset temperature value and the outdoor ambient temperature is greater than the second preset temperature value and/or detects that the indoor humidity is less than the second preset humidity value, the control unit 120 controls the frequency of the compressor to increase to the frequency of the air conditioner when the air conditioner is started to operate, namely, the air conditioner exits from the first anti-condensation control mode or the second anti-condensation control mode. For example, the anti-condensation control mode is exited when the indoor humidity is detected to be < 55%, and the current state is maintained when the indoor humidity is between 55% and 65%.

Optionally, the apparatus 100 may further include a determining unit (not shown) for determining whether the air conditioner is set to a preset operation mode after the control unit 120 controls the air conditioner to enter the first anti-condensation control mode or the second anti-condensation control mode; when the determining unit determines that the air conditioner is set to the preset operation mode, the control unit 120 controls the frequency of the compressor to increase to the frequency of the air conditioner when the air conditioner is turned on, that is, the compressor exits from the first condensation prevention control mode or the second condensation prevention control mode.

Optionally, the control unit 120 is further configured to: and after controlling the air conditioner to enter the first anti-condensation control mode or the second anti-condensation control mode to continuously operate for a second preset time, controlling the frequency of the compressor to increase to the frequency of the air conditioner during starting, namely, exiting the first anti-condensation control mode or the second anti-condensation control mode. For example, after entering the anti-condensation control mode, whether the compressor continuously operates for 120min is judged, if the compressor continuously operates for 120min, the frequency of the compressor is increased to the frequency when the air conditioner is just started to operate, and the anti-condensation control mode is exited.

The invention also provides a storage medium corresponding to the air conditioner anti-condensation control method, and a computer program is stored on the storage medium, and when the program is executed by a processor, the steps of any one of the methods are realized.

The invention also provides an air conditioner corresponding to the anti-condensation control method of the air conditioner, which comprises a processor, a memory and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the steps of any one of the methods when executing the program.

The invention also provides an air conditioner corresponding to the air conditioner anti-condensation control device, which comprises any one of the air conditioner anti-condensation control devices.

According to the scheme provided by the invention, whether the anti-condensation control is started or not is determined according to the indoor and outdoor environment temperature and/or the indoor humidity, and the anti-condensation mode of the air conditioner is controlled according to the state of the air deflector of the indoor unit, so that the condensation caused by large temperature difference of two sides of the air deflector can be prevented, and the condensation is reduced to the minimum on the premise of not influencing the refrigerating effect of the whole machine; prevent the condensation through the realization of adjustment compressor frequency to confirm specific frequency adjustment mode through indoor ambient temperature, indoor heat exchanger coil pipe temperature and windshield, not only promoted user's travelling comfort, still eliminated the hidden danger that the condensation water drips and pollutes ground or even short circuit household electrical appliances, multiple condensation mode combination of preventing, balanced refrigeration effect and condensation effect.

The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope and spirit of the invention and the following claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired, or a combination of any of these. In addition, each functional unit may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.

The units described as separate parts may or may not be physically separate, and the parts serving as the control device may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. 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 Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (12)

1. An air conditioner anti-condensation control method is characterized by comprising the following steps:

when the air conditioner operates in a refrigerating mode, detecting whether the indoor environment temperature is smaller than or equal to a first preset temperature value, whether the outdoor environment temperature is smaller than or equal to a second preset temperature value and/or whether the indoor humidity is larger than a first preset humidity value;

and when the detected indoor environment temperature is less than or equal to a first preset temperature value, the detected outdoor environment temperature is less than or equal to a second preset temperature value and/or the detected indoor humidity is greater than a first preset humidity value, controlling the air conditioner to enter a first condensation prevention control mode or a second condensation prevention control mode according to the state of the air guide mechanism of the indoor unit.

2. The method of claim 1,

under the condition that the indoor unit air guide mechanism is of a single air guide plate structure, the air conditioner is controlled to enter a first condensation prevention control mode or a second condensation prevention control mode according to the state of the indoor unit air guide mechanism, and the method comprises the following steps:

if the air guide mechanism is in a third state, controlling the air conditioner to enter a first condensation prevention control mode, wherein when a third judgment condition is met, the air guide mechanism is in the third state;

if the air guide mechanism is in a fourth state, controlling the air conditioner to enter a second condensation prevention control mode, wherein when a fourth judgment condition is met, the air guide mechanism is in the fourth state;

the air guide mechanism of the indoor unit comprises a third air guide plate; the third determination condition includes: the third air deflector is positioned in a fifth angle interval; the fourth determination condition includes: the third air deflector is positioned in a sixth-angle interval; the condensation amount generated when the third air deflector is positioned in a fifth angle interval is less than that generated when the third air deflector is positioned in a sixth angle interval;

or,

under the condition that indoor set wind guiding mechanism is two wind deflector structures, according to indoor set wind guiding mechanism's state control the air conditioner gets into first condensation control mode or second and prevents condensation control mode, include:

if the air guide mechanism is in a first state, controlling the air conditioner to enter a first condensation prevention control mode, wherein when a first judgment condition is met, the air guide mechanism is in the first state; and/or the presence of a gas in the gas,

if the air guide mechanism is in a second state, controlling the air conditioner to enter a second condensation prevention control mode, wherein when a second determination condition is met, the air guide mechanism is in the second state;

the air guide mechanism of the indoor unit comprises a first air guide plate and a second air guide plate; the first determination condition includes: the first air deflector is positioned in a first angle interval or the second air deflector is positioned in a second angle interval; the second determination condition includes: the first air deflector is positioned in a third angle interval or the second air deflector is positioned in a fourth angle interval;

the condensation amount generated when the first air deflector is positioned in the first angle interval is less than that generated when the first air deflector is positioned in the third angle interval; and the condensation amount generated when the second air guide plate is positioned in the second angle interval is less than that generated when the second air guide plate is positioned in the fourth angle interval.

3. The method according to claim 1 or 2,

the first anti-condensation control mode includes: controlling the compressor frequency to decrease to a first anti-condensation target frequency F_{Anti-condensation target 1}：

F_{Anti-condensation target 1}＝Fmax-F_{Anti-condensation 1}*k

And/or the presence of a gas in the gas,

the second anti-condensation control mode includes: controlling the compressor frequency to decrease to a second anti-condensation target frequency F_{Anti-condensation target 2}：

F_{Anti-condensation target 2}＝Fmax-F_{Anti-condensation 2}*k

Wherein, Fmax is the maximum operating frequency of the compressor, F_{Anti-condensation 1}The frequency parameter is a frequency parameter of a first anti-condensation control mode; f_{Anti-condensation 2}The frequency parameter is a frequency parameter of a second anti-condensation control mode; k is an anti-condensation correction coefficient;

the condensation prevention correction coefficient is a constant and is determined according to the section of the difference between the indoor environment temperature and the indoor heat exchanger temperature in more than two preset temperature difference sections and the set wind level.

4. The method of claim 1 or 2, further comprising:

after the continuous operation time of the compressor of the air conditioner reaches a first preset time, starting to detect whether the indoor environment temperature is less than or equal to a first preset temperature value or not and whether the outdoor environment temperature is less than or equal to a second preset temperature value or not;

and/or the presence of a gas in the gas,

and detecting whether the indoor environment temperature is less than or equal to a first preset temperature value and the outdoor environment temperature is less than or equal to a second preset temperature value under the condition of judging that the air conditioner is not set to be in a preset operation mode.

5. The method according to claim 1 or 2, further comprising, after controlling the air conditioner to enter the first anti-condensation control mode or the second anti-condensation control mode:

detecting whether the indoor environment temperature is greater than a first preset temperature value and the outdoor environment temperature is greater than a second preset temperature value and/or detecting whether the indoor humidity is less than a second preset humidity value;

when the detected indoor environment temperature is higher than a first preset temperature value and the outdoor environment temperature is higher than a second preset temperature value and/or the detected indoor humidity is lower than a second preset humidity value, controlling the frequency of the compressor to be increased to the frequency of the air conditioner during starting;

and/or the presence of a gas in the gas,

judging whether the air conditioner is set to a preset operation mode or not;

under the condition that the air conditioner is set to be in the preset operation mode, controlling the frequency of the compressor to be increased to the frequency of the air conditioner during starting;

and/or the presence of a gas in the gas,

and after the air conditioner continuously operates for a second preset time in the first anti-condensation control mode or the second anti-condensation control mode, controlling the frequency of the compressor to increase to the frequency of the air conditioner during starting.

6. The utility model provides a condensation controlling means is prevented to air conditioner which characterized in that includes:

the detection unit is used for detecting whether the indoor environment temperature is less than or equal to a first preset temperature value, whether the outdoor environment temperature is less than or equal to a second preset temperature value and/or whether the indoor humidity is greater than a first preset humidity value when the air conditioner operates in a refrigerating mode;

and the control unit is used for controlling the air conditioner to enter a first condensation prevention control mode or a second condensation prevention control mode according to the state of the air guide mechanism of the indoor unit when the detection unit detects that the indoor environment temperature is less than or equal to a first preset temperature value and the outdoor environment temperature is less than or equal to a second preset temperature value and/or detects that the indoor humidity is greater than a first preset humidity value.

7. The apparatus of claim 6,

the control unit, under the condition that indoor set wind guiding mechanism is single air deflector structure, according to indoor set wind guiding mechanism's state control the air conditioner get into first prevent condensation control mode or second prevent condensation control mode, include:

if the air guide mechanism is in a third state, controlling the air conditioner to enter a first condensation prevention control mode, wherein when a third judgment condition is met, the air guide mechanism is in the third state;

if the air guide mechanism is in a fourth state, controlling the air conditioner to enter a second condensation prevention control mode, wherein when a fourth judgment condition is met, the air guide mechanism is in the fourth state;

the air guide mechanism of the indoor unit comprises a third air guide plate; the third determination condition includes: the third air deflector is positioned in a fifth angle interval; the fourth determination condition includes: the third air deflector is positioned in a sixth-angle interval; the condensation amount generated when the third air deflector is positioned in a fifth angle interval is less than that generated when the third air deflector is positioned in a sixth angle interval;

or,

the control unit, under the condition that indoor set wind guiding mechanism is two wind guiding plate structures, according to indoor set wind guiding mechanism's state control the air conditioner get into first prevent condensation control mode or second prevent condensation control mode, include:

if the air guide mechanism is in a first state, controlling the air conditioner to enter a first condensation prevention control mode, wherein when a first judgment condition is met, the air guide mechanism is in the first state;

and/or the presence of a gas in the gas,

if the air guide mechanism is in a second state, controlling the air conditioner to enter a second condensation prevention control mode, wherein when a second determination condition is met, the air guide mechanism is in the second state;

the air guide mechanism of the indoor unit comprises a first air guide plate and a second air guide plate; the first determination condition includes: the first air deflector is positioned in a first angle interval or the second air deflector is positioned in a second angle interval; the second determination condition includes: the first air deflector is positioned in a third angle interval or the second air deflector is positioned in a fourth angle interval;

the condensation amount generated when the first air deflector is positioned in the first angle interval is less than that generated when the first air deflector is positioned in the third angle interval; and the condensation amount generated when the second air guide plate is positioned in the second angle interval is less than that generated when the second air guide plate is positioned in the fourth angle interval.

8. The apparatus according to claim 6 or 7,

the first anti-condensation control mode includes: controlling the compressor frequency to decrease to a first anti-condensation target frequency F_{Anti-condensation target 1}：

F_{Anti-condensation target 1}＝Fmax-F_{Anti-condensation 1}*k

And/or the presence of a gas in the gas,

the second anti-condensation control mode includes: controlling the compressor frequency to decrease to a second anti-condensation target frequency F_{Anti-condensation target 2}：

F_{Anti-condensation target 2}＝Fmax-F_{Anti-condensation 2}*k

Wherein, Fmax is the maximum operating frequency of the compressor, F_{Anti-condensation 1}The frequency parameter is a frequency parameter of a first anti-condensation control mode; f_{Anti-condensation 2}The frequency parameter is a frequency parameter of a second anti-condensation control mode; k is an anti-condensation correction coefficient;

the condensation prevention correction coefficient is a constant and is determined according to the section of the difference between the indoor environment temperature and the indoor heat exchanger temperature in more than two preset temperature difference sections and the set wind level.

9. The apparatus according to claim 6 or 7,

the detection unit is further configured to: after the continuous operation time of the compressor of the air conditioner reaches a first preset time, starting to detect whether the indoor environment temperature is less than or equal to a first preset temperature value or not and whether the outdoor environment temperature is less than or equal to a second preset temperature value or not;

and/or the presence of a gas in the gas,

the device, still include: a judging unit for judging whether the air conditioner is set to a preset operation mode;

the detection unit is further configured to: and detecting whether the indoor environment temperature is less than or equal to a first preset temperature value and the outdoor environment temperature is less than or equal to a second preset temperature value under the condition of judging that the air conditioner is not set to be in a preset operation mode.

10. The apparatus according to claim 6 or 7,

the detection unit is further configured to: after the control unit controls the air conditioner to enter a first anti-condensation control mode or a second anti-condensation control mode, detecting whether the indoor environment temperature is greater than a first preset temperature value and the outdoor environment temperature is greater than a second preset temperature value, and/or detecting whether the indoor humidity is less than a second preset humidity value;

the control unit is further configured to: when the detection unit detects that the indoor environment temperature is greater than a first preset temperature value and the outdoor environment temperature is greater than a second preset temperature value and/or detects that the indoor humidity is less than a second preset humidity value, controlling the frequency of the compressor to rise to the frequency of the air conditioner during starting;

and/or the presence of a gas in the gas,

the device, still include: the judging unit is used for judging whether the air conditioner is set to be in a preset operation mode or not after the control unit controls the air conditioner to enter a first condensation prevention control mode or a second condensation prevention control mode;

the control unit is further configured to: under the condition that the judging unit judges that the air conditioner is set to be in the preset running mode, controlling the frequency of the compressor to rise to the frequency running when the air conditioner is started;

and/or the presence of a gas in the gas,

the control unit is further configured to: and after controlling the air conditioner to enter the first anti-condensation control mode or the second anti-condensation control mode to continuously operate for a second preset time, controlling the frequency of the compressor to increase to the frequency of the air conditioner when the air conditioner is started to operate.

11. A storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 5.

12. An air conditioner comprising a processor, a memory, and a computer program stored in the memory and operable on the processor, wherein the processor executes the program to perform the steps of the method of any one of claims 1 to 5 or to include the anti-condensation control apparatus of the air conditioner of any one of claims 6 to 10.

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