A method and device for controlling condensation and an air conditioner

Abstract

The application relates to the air conditioning technical field, and discloses a condensation removal control method and device and an air conditioner. The air conditioner comprises an evaporator. The method comprises the following steps: when the air conditioner is running, detecting indoor humidity and pipeline temperature of the evaporator; when the indoor humidity is greater than preset humidity and the pipeline temperature is less than preset dew point temperature, determining current current under a current air baffle; when the current current is in a first preset range, increasing current fan rotating speed of the current air baffle; when the current current is in a second preset range, reducing the current fan rotating speed of the current air baffle and improving heat exchange power of the evaporator; when the current current is in a third preset range, controlling the evaporator to start heating to evaporate condensation in a shell of the air conditioner, and discharging the evaporated condensation moisture to the outdoor. The application can reduce the influence of condensation on heat exchange efficiency of the air conditioner when the air conditioner is running in a hot and humid environment, prevent condensation while not reducing air volume, improve indoor temperature drop rate, and maintain user comfort.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a method, device and air conditioner for controlling condensation. Background Technology

[0002] When an air conditioner is used for cooling, condensation occurs, especially in humid areas where the condensation is more severe. The condensation usually adheres to the evaporator and the inner wall of the indoor unit. Condensation on the evaporator affects heat exchange, leading to reduced air conditioner performance. Over time, it can also corrode the evaporator surface and breed bacteria. When condensation adheres to the inner wall of the indoor unit, if the air conditioner fan speed is too high, water may be blown out of the air outlet, reducing comfort and affecting the user experience.

[0003] To address the condensation problem that occurs during cooling in humid and hot environments, existing technologies generally reduce the compressor frequency and internal fan speed to slow down condensation. This approach significantly reduces heat exchange, making it take longer for the room to reach the user's set temperature. However, this method only slows down the condensation process and does not eliminate it. Summary of the Invention

[0004] The purpose of this invention is to provide a method, device, and air conditioner for controlling condensation, which aims to solve the problem that existing air conditioners reduce heat exchange and can only slow down the rate of condensation formation when dealing with condensation, making it difficult to eliminate condensation.

[0005] In a first aspect, embodiments of the present invention provide a method for controlling condensation, applied to an air conditioner, the air conditioner including an evaporator, the method for controlling condensation including:

[0006] When the air conditioner is running, the indoor humidity and the pipe temperature of the evaporator are detected;

[0007] When the indoor humidity is greater than the preset humidity and the pipeline temperature is less than the preset dew point temperature, measure the current current under the current windshield.

[0008] When the current current is within the first preset range, increase the current fan speed of the current windshield;

[0009] When the current current is within the second preset range, reduce the current fan speed of the current windshield and increase the heat exchange power of the evaporator;

[0010] When the current is within the third preset range, the evaporator is controlled to turn on heating to evaporate the condensation inside the air conditioner casing and discharge the evaporated condensate moisture to the outside.

[0011] Secondly, embodiments of the present invention provide a decondensation control device, comprising:

[0012] The detection unit is used to detect indoor humidity and the pipe temperature of the evaporator of the air conditioner when the air conditioner is running;

[0013] The measuring unit is used to measure the current current under the current windshield when the indoor humidity is greater than the preset humidity and the pipeline temperature is less than the preset dew point temperature.

[0014] The first anti-condensation unit is used to increase the current fan speed of the current windshield when the current current is within the first preset range.

[0015] The second anti-condensation unit is used to reduce the current fan speed of the current windshield and increase the heat exchange power of the evaporator when the current current is within the second preset range.

[0016] The decondensation removal unit is used to control the evaporator to turn on heating when the current is within a third preset range, so as to evaporate the condensation inside the air conditioner casing and discharge the evaporated condensation moisture to the outside.

[0017] Thirdly, embodiments of the present invention provide an air conditioner for implementing the decondensation control method described above, comprising:

[0018] The indoor unit is equipped with a humidity sensor and a pipe temperature sensor. The humidity sensor is used to detect the indoor humidity, and the pipe temperature sensor detects the evaporator pipe temperature of the indoor unit.

[0019] A fresh air device, connecting the interior of the indoor unit to the outside, is used to exhaust the condensed moisture that evaporates inside the air conditioner's casing to the outside.

[0020] This invention discloses a method, device, and air conditioner for controlling condensation. The air conditioner includes an evaporator. The method includes: when the air conditioner is running, detecting the indoor humidity and the pipe temperature of the evaporator; when the indoor humidity is greater than a preset humidity and the pipe temperature is less than a preset dew point temperature, measuring the current current under the current fan setting; when the current current is within a first preset range, increasing the current fan speed of the current fan setting; when the current current is within a second preset range, decreasing the current fan speed of the current fan setting and increasing the heat exchange power of the evaporator; when the current current is within a third preset range, controlling the evaporator to turn on heating to evaporate the condensation inside the air conditioner casing and discharging the evaporated condensate moisture to the outside. This invention can reduce the impact of condensation on the heat exchange efficiency of the air conditioner during cooling operation in a hot and humid environment, preventing condensation without reducing airflow, increasing the indoor temperature drop rate, and maintaining user comfort. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic flowchart of the decondensation control method provided in an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of a sub-process of the decondensation control method provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of another sub-process of the decondensation control method provided in the embodiments of the present invention;

[0025] Figure 4 A schematic block diagram of the decondensation control device provided in an embodiment of the present invention;

[0026] Figure 5 A schematic block diagram of the first anti-condensation unit provided in an embodiment of the present invention;

[0027] Figure 6 A schematic block diagram of a heating unit provided in an embodiment of the present invention;

[0028] Figure 7 This is a schematic block diagram of an air conditioner provided in an embodiment of the present invention. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0031] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0032] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0033] To facilitate understanding of this invention, the structure of the air conditioner will be described first:

[0034] Air conditioners include indoor units and fresh air systems;

[0035] The indoor unit is equipped with a humidity sensor and a pipe temperature sensor. The humidity sensor is used to detect the indoor humidity, and the pipe temperature sensor detects the temperature of the evaporator pipe of the indoor unit. The indoor unit is also equipped with an air guide plate and a closable air intake grille. Closing the air guide plate and air intake grille can make the inside of the indoor unit casing a relatively sealed environment.

[0036] The fresh air unit is equipped with a first air vent, a second air vent, and a third air vent. The first air vent connects to the outside, the second air vent connects to the inside, and the third air vent connects to the inside of the indoor unit. The first, second, and third air vents are all controlled by stepper motors and baffles to open and close. The fan inside the fresh air unit can reverse. That is, when the first and second air vents are open and the third air vent is closed, the fan inside the fresh air unit can rotate forward to allow outdoor air to enter; while when the first and third air vents are open and the second air vent is closed, the fan inside the fresh air unit can reverse to allow air from inside the indoor unit to exit.

[0037] Please see Figure 1 , Figure 1 This is a schematic flowchart of the decondensation control method provided in an embodiment of the present invention;

[0038] like Figure 1 As shown, the method is applied to the air conditioner described above, and the method includes steps S101 to S105.

[0039] S101. When the air conditioner is running, detect the indoor humidity and the evaporator pipe temperature;

[0040] S102. When the indoor humidity is greater than the preset humidity and the pipeline temperature is less than the preset dew point temperature, measure the current current under the current windshield.

[0041] In steps S101 to S102, the indoor humidity and pipe temperature are used as the criteria for judgment. The air conditioner is determined to be in a non-condensation-prone state and can operate normally when the following three conditions are met: the indoor humidity is greater than the preset humidity and the pipe temperature is greater than the preset dew point temperature; the indoor humidity is less than the preset humidity and the pipe temperature is less than the preset dew point temperature; and the indoor humidity is less than the preset humidity and the pipe temperature is greater than the preset dew point temperature.

[0042] When the indoor humidity is greater than the preset humidity and the pipe temperature is less than the preset dew point temperature, the air conditioner is determined to be in a state prone to condensation. It needs to enter the anti-condensation program, measure the current current under the current fan setting, and determine the subsequent operation based on the different current currents.

[0043] S103. When the current current is within the first preset range, increase the current fan speed of the current windshield;

[0044] S104. When the current current is within the second preset range, reduce the current fan speed of the current windshield and increase the heat exchange power of the evaporator.

[0045] S105. When the current is within the third preset range, control the evaporator to turn on heating to evaporate the condensation inside the air conditioner casing and discharge the evaporated condensation moisture to the outside.

[0046] In steps S103 to S105, the range values ​​of the first preset range, the second preset range, and the third preset range increase sequentially. Based on step S102, the current current under the current windshield is measured. The larger the current current, the more severe the condensation phenomenon will be. Therefore, the present invention sets different preset ranges. When the current current is in each preset range, different degrees of condensation phenomenon can be reflected, and the corresponding operation can be set for each preset range.

[0047] Specifically, for the operation corresponding to the current being within the first preset range in step S103:

[0048] The current is set to It, the preset rated current of the current fan speed is Io, and the preset compensation current of the current fan speed is Io. When Io≤It≤Io+Ia, it means that the current current It is within the first preset range. At this time, the air conditioner is at risk of condensation, but the indoor unit generally does not blow water. The preset compensation speed Ia can be added to the current fan speed, that is, the fan runs at a speed of Ro+Ra. It can be understood that the higher the current fan speed, the larger the value of the preset compensation speed Ia. Through speed compensation, the impact of condensation on the heat exchange efficiency of the air conditioner can be reduced. While preventing condensation, the air volume is not reduced, and the indoor temperature drop rate is increased.

[0049] Specifically, for the operation corresponding to the current being within the second preset range in step S104:

[0050] When It > Io + Ia, it means that the current It is within the second preset range. At this time, the condensation on the evaporator has reached a certain amount. The preset compensation speed Ia needs to be reduced based on the current fan speed. The fan runs at the speed of Ro-Ra and the compressor frequency is increased to the maximum. The purpose of increasing the compressor frequency is to improve the heat exchange of the evaporator. The fan speed is reduced to prevent condensation from dripping and to maximize the heat exchange to reach the user-set value.

[0051] Specifically, for the operation corresponding to the current being within the third preset range in step S105:

[0052] When the current is within the third preset range, it indicates that the condensation phenomenon is quite serious, and the condensation removal procedure needs to be initiated. Figure 2 As shown, step S105 includes:

[0053] S201. When the current current is greater than the preset maximum current value of the current windshield, control the air intake grille, air guide plate and fan of the air conditioner to close.

[0054] S202. Control the evaporator to turn on for heating to evaporate the condensation inside the air conditioner casing;

[0055] S203. The condensed moisture evaporated inside the air conditioner casing is discharged to the outside through the fresh air device of the air conditioner.

[0056] S204. When the evaporated condensed moisture is discharged outdoors, the humidity inside the air conditioner casing is detected. When the humidity inside the air conditioner casing reaches the preset condition, dehumidification is completed and normal operation is restored.

[0057] Based on S201 to S204, after closing the air inlet grille, air guide plate, and fan, the interior of the indoor unit casing is a relatively sealed environment. Then, the compressor frequency is controlled to the maximum, that is, the evaporator heating reaches the maximum, thereby evaporating the condensation into moisture. Then, the first and third air vents of the fresh air device are controlled to open, while the second air vent is closed, that is, the interior of the indoor unit casing is connected to the outside. Then, the fan inside the fresh air device is controlled to reverse, thereby expelling the moisture inside the indoor unit casing to the outside, thus preventing condensation from corroding the evaporator or dripping water.

[0058] Furthermore, such as Figure 3 As shown, the condensation evaporation process in step S202 requires humidity detection to confirm the time point when evaporation is completed before proceeding to step S203 for condensation moisture removal. Specifically, step S202 includes:

[0059] S301. Control the evaporator to turn on to the highest heating setting so that the condensation inside the air conditioner casing can evaporate;

[0060] S302. Detect the rate of humidity increase inside the air conditioner casing during condensation evaporation.

[0061] S303. When the rate of increase in humidity is less than the preset value within a preset time interval, the condensation evaporation is completed.

[0062] Based on steps S301 to S303, during the process of heating the evaporator to evaporate the condensate, the humidity inside the shell is detected. Specifically, the humidity can be detected once at a preset time interval. The humidity increase rate during that time interval is calculated based on the two humidity detection results of the preset time interval. When the change in the humidity increase rate during a certain preset time interval is less than a preset value (the change is zero or close to zero), it indicates that the condensate has basically evaporated completely, and the condensate moisture discharge work in step S203 can be carried out.

[0063] Furthermore, when performing the condensation and moisture removal work in step S203, the dehumidification detection work in step S204 needs to be performed simultaneously. That is, it is still necessary to continue to detect the humidity inside the casing to confirm the time point when the removal work is completed so as to restore the normal operation of the air conditioner. Specifically, the humidity can be detected once at a preset time interval. The humidity reduction rate of the preset time interval is calculated based on the two humidity detection results of the preset time interval. When the change of the humidity reduction rate of a certain preset time interval is less than the preset value (the change is zero or close to zero), it indicates that the moisture has been basically removed, the dehumidification work is completed, and the normal operation of the air conditioner can be restored.

[0064] This invention also provides a decondensation control device, which is used to execute any of the aforementioned decondensation control methods. Specifically, please refer to... Figure 4 , Figure 4 This is a schematic block diagram of the decondensation control device provided in the embodiments of the present invention.

[0065] like Figure 4 As shown, the decondensation control device 400 includes: a detection unit 401, a measurement unit 402, a first anti-condensation unit 403, a second anti-condensation unit 404, and a decondensation unit 405.

[0066] The detection unit 401 is used to detect indoor humidity and the pipe temperature of the evaporator of the air conditioner when the air conditioner is running;

[0067] The measuring unit 402 is used to measure the current current under the current windshield when the indoor humidity is greater than the preset humidity and the pipeline temperature is less than the preset dew point temperature.

[0068] The first anti-condensation unit 403 is used to increase the current fan speed of the current windshield when the current current is within the first preset range.

[0069] The second anti-condensation unit 404 is used to reduce the current fan speed of the current windshield and increase the heat exchange power of the evaporator when the current current is within the second preset range.

[0070] The decondensation unit 405 is used to control the evaporator to turn on heating when the current is within the third preset range, so as to evaporate the condensation inside the air conditioner casing and discharge the evaporated condensation moisture to the outside.

[0071] This device uses indoor humidity and pipe temperature as criteria. When the indoor humidity is higher than the preset humidity and the pipe temperature is lower than the preset dew point temperature, the air conditioner is determined to be in a condensation-prone state, requiring the activation of the anti-condensation program. The current current at the current fan speed is measured; a higher current indicates more severe condensation. Therefore, this invention sets three different preset ranges. When the current current is in the first preset range, speed compensation is applied to the current fan speed to reduce the impact of condensation on the air conditioner's heat exchange efficiency, preventing condensation without reducing airflow and increasing the rate of indoor temperature drop. When the current current is in the second preset range, the fan speed is reduced and the compressor frequency is increased to maximum, preventing condensation dripping and maximizing the heat exchange to the user-set value. When the current current is in the third preset range, the evaporator's heating is activated to maximum to evaporate the condensation into moisture, which is then exhausted outdoors through the fresh air system, preventing condensation from corroding the evaporator or causing dripping.

[0072] Based on this, this device can reduce the impact of condensation on the heat exchange efficiency of the air conditioner when operating in a humid and hot environment. It can prevent condensation without reducing air volume, increase the rate of indoor temperature drop, and maintain user comfort.

[0073] In one embodiment, the first anti-condensation unit 403 includes:

[0074] When the current current is greater than or equal to the preset rated current of the current fan speed, and less than or equal to the sum of the rated current and the preset compensation current of the current fan speed, a preset compensation speed is applied based on the current fan speed of the current fan speed. The higher the current fan speed, the larger the value of the preset compensation speed. Therefore, through speed compensation, the impact of condensation on the heat exchange efficiency of the air conditioner can be reduced, preventing condensation without reducing airflow and increasing the rate of indoor temperature drop.

[0075] In one embodiment, the second anti-condensation unit 404 includes:

[0076] When the current current is greater than the sum of the rated current and the preset compensation current of the current fan speed, but less than or equal to the preset maximum current value of the current fan speed, the preset compensation speed is reduced based on the current fan speed of the current fan speed, and the compressor of the air conditioner is controlled to increase its frequency to improve the heat exchange power of the evaporator. Therefore, the purpose of increasing the compressor frequency is to improve the heat exchange of the evaporator, while reducing the fan speed is to prevent condensation from dripping, maximizing the heat exchange to reach the user-set value.

[0077] In one embodiment, such as Figure 5As shown, the decondensation unit 405 includes:

[0078] The shut-off unit 501 is used to control the air intake grille, air guide plate and fan of the air conditioner to shut down when the current current is greater than the preset maximum current value of the current windshield.

[0079] Heating unit 502 is used to control the evaporator to turn on for heating to evaporate the condensation inside the air conditioner casing.

[0080] The exhaust unit 503 is used to exhaust the condensed moisture evaporated inside the air conditioner casing to the outside through the fresh air device of the air conditioner.

[0081] Based on units 501-503, after closing the air inlet grille, air guide plate, and fan, the interior of the indoor unit casing is a relatively sealed environment. Then, the compressor frequency is controlled to the maximum, that is, the evaporator heating reaches the maximum, thereby evaporating the condensation into moisture. Then, the first and third air vents of the fresh air device are controlled to open, while the second air vent is closed, that is, the interior of the indoor unit casing is connected to the outside. Then, the fan inside the fresh air device is controlled to reverse, thereby expelling the moisture inside the indoor unit casing to the outside, thus preventing condensation from corroding the evaporator or dripping water.

[0082] In one embodiment, such as Figure 6 As shown, the heating unit 502 includes:

[0083] Evaporation unit 601 is used to control the evaporator to turn on to the highest heating level so that the condensation inside the air conditioner casing can evaporate;

[0084] The rate detection unit 602 is used to detect the rate of humidity increase inside the air conditioner casing during condensation evaporation.

[0085] The change comparison unit 603 is used to complete the condensation evaporation when the rate of increase in humidity is less than a preset value within a preset time interval.

[0086] Based on unit 601, during the process of heating the evaporator to evaporate the condensate, the humidity inside the shell is detected. Specifically, the humidity can be detected once at a preset time interval. The humidity increase rate during that time interval is calculated based on the two humidity detection results of the preset time interval. When the change in the humidity increase rate during a certain preset time interval is less than a preset value (the change is zero or close to zero), it indicates that the condensate has basically evaporated completely.

[0087] In one embodiment, the decondensation unit 405 further includes:

[0088] When the evaporated condensed moisture is discharged outdoors, the humidity inside the air conditioner casing is detected. When the humidity change inside the air conditioner casing reaches a preset condition, dehumidification is completed and the air conditioner resumes normal operation. The preset condition is that the rate of humidity decrease inside the air conditioner casing is less than a preset value within a preset time interval.

[0089] The aforementioned decondensation control device 400 can be implemented as a computer program, which can, for example... Figure 7 The air conditioner shown is running.

[0090] Please see Figure 7 , Figure 7 This is a schematic block diagram of an air conditioner provided in an embodiment of the present invention. The air conditioner 700 is a device with both wireless and wired communication capabilities.

[0091] See Figure 7 The air conditioner 700 includes a processor 702, a memory, and a network interface 705 connected via a system bus 701. The memory may include a non-volatile storage medium 703 and internal memory 704.

[0092] The non-volatile storage medium 703 may store an operating system 7031 and a computer program 7032. When the computer program 7032 is executed, it causes the processor 702 to perform a decondensation control method.

[0093] The processor 702 provides computing and control capabilities to support the operation of the entire air conditioner 700.

[0094] The internal memory 704 provides an environment for the operation of the computer program 7032 in the non-volatile storage medium 703. When the computer program 7032 is executed by the processor 702, the processor 702 can execute a decondensation control method.

[0095] This network interface 705 is used for network communication with other devices. Those skilled in the art will understand that... Figure 7 The structure shown is merely a block diagram of a portion of the structure related to the present invention and does not constitute a limitation on the air conditioner 700 to which the present invention is applied. The specific air conditioner 700 may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0096] The processor 702 is used to run a computer program 7032 stored in a memory to implement any embodiment of the above-described decondensation control method.

[0097] It should be understood that, in this embodiment of the invention, the processor 702 may be a Central Processing Unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0098] It will be understood by those skilled in the art that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program may be stored in a storage medium, which is a computer-readable storage medium. The computer program is executed by at least one processor in the computer system to implement the process steps of the embodiments of the above methods.

[0099] Therefore, the present invention also provides a storage medium. This storage medium may be a computer-readable storage medium. The storage medium stores a computer program. When executed by a processor, the computer program causes the processor to perform any embodiment of the above-described decondensation control method.

[0100] The storage medium can be any computer-readable storage medium capable of storing program code, such as a USB flash drive, portable hard drive, read-only memory (ROM), magnetic disk, or optical disk.

[0101] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0102] In the several embodiments provided by this invention, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For example, the division of each unit is merely a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0103] The steps in the method of this invention can be adjusted, merged, or reduced in order according to actual needs. The units in the device of this invention can be merged, divided, or reduced according to actual needs. Furthermore, the functional units in the various embodiments of this invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0104] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause an air conditioner to execute all or part of the steps of the methods described in the various embodiments of the present invention.

[0105] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0106] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Since these modifications and variations fall within the scope of the claims and their equivalents, this invention also intends to include these modifications and variations.

[0107] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for controlling condensation, applied to an air conditioner, the air conditioner including an evaporator, characterized in that, include: When the air conditioner is running, the indoor humidity and the pipe temperature of the evaporator are detected; When the indoor humidity is greater than the preset humidity and the pipeline temperature is less than the preset dew point temperature, measure the current current under the current windshield. When the current current is within the first preset range, increase the current fan speed of the current windshield; wherein, the first preset range means that the current current is greater than or equal to the preset rated current of the current windshield, and less than or equal to the sum of the rated current and the preset compensation current of the current windshield. When the current current is within the second preset range, the current fan speed of the current windshield is reduced and the heat exchange power of the evaporator is increased; wherein, the second preset range means that the current current is greater than the sum of the rated current and the preset compensation current of the current windshield, and less than or equal to the preset maximum current value of the current windshield. When the current is within the third preset range, the evaporator is controlled to turn on heating to evaporate the condensation inside the air conditioner casing and discharge the evaporated condensate moisture to the outside.

2. The decondensation control method according to claim 1, characterized in that, The step of increasing the current fan speed of the current windshield when the current current is within a first preset range includes: When the current current is greater than or equal to the preset rated current of the current windshield, and less than or equal to the sum of the rated current and the preset compensation current of the current windshield, a preset compensation speed is compensated based on the current fan speed of the current windshield. The higher the current windshield, the greater the value of the preset compensation speed.

3. The decondensation control method according to claim 2, characterized in that, The step of reducing the current fan speed of the current windshield and increasing the heat exchange power of the evaporator when the current current is within the second preset range includes: When the current current is greater than the sum of the rated current and the preset compensation current of the current windshield, but less than or equal to the preset maximum current value of the current windshield, the preset compensation speed is reduced based on the current fan speed of the current windshield, and the compressor of the air conditioner is controlled to increase the frequency to improve the heat exchange power of the evaporator.

4. The decondensation control method according to claim 1, characterized in that, When the current is within a third preset range, controlling the evaporator to turn on heating to evaporate the condensation inside the air conditioner casing and discharging the evaporated condensate moisture to the outside includes: When the current current is greater than the preset maximum current value of the current windshield, the air intake grille, air guide plate and fan of the air conditioner are controlled to close. The evaporator is controlled to turn on for heating to evaporate the condensation inside the casing of the air conditioner; The fresh air device of the air conditioner discharges the condensed moisture that evaporates inside the air conditioner casing to the outside.

5. The decondensation control method according to claim 4, characterized in that, The control of the evaporator to turn on heating to evaporate the condensation inside the air conditioner casing includes: The evaporator is controlled to turn on to the highest heating setting so that the condensation inside the air conditioner casing evaporates; The rate of humidity increase inside the casing of the air conditioner during condensation evaporation was detected. When the rate of increase in humidity changes less than a preset value within a preset time interval, condensation evaporation is completed.

6. The decondensation control method according to claim 4, characterized in that, The step of controlling the evaporator to turn on heating to evaporate the condensation inside the air conditioner casing when the current is within a third preset range, and discharging the evaporated condensate moisture to the outside, further includes: When the evaporated condensed moisture is discharged outdoors, the humidity inside the air conditioner casing is detected. When the humidity inside the air conditioner casing reaches a preset condition, dehumidification is completed and normal operation is restored.

7. The decondensation control method according to claim 6, characterized in that, The preset condition is that the rate of humidity reduction inside the air conditioner's casing changes less than a preset value within a preset time interval.

8. A decondensation control device, characterized in that, include: The detection unit is used to detect indoor humidity and the pipe temperature of the evaporator of the air conditioner when the air conditioner is running; The measuring unit is used to measure the current current under the current windshield when the indoor humidity is greater than the preset humidity and the pipeline temperature is less than the preset dew point temperature. The first anti-condensation unit is used to increase the current fan speed of the current windshield when the current current is within a first preset range; wherein, the first preset range refers to when the current current is greater than or equal to the preset rated current of the current windshield, and less than or equal to the sum of the rated current and the preset compensation current of the current windshield. The second anti-condensation unit is used to reduce the current fan speed of the current windshield and increase the heat exchange power of the evaporator when the current current is within the second preset range; wherein, the second preset range refers to the current current being greater than the sum of the rated current and the preset compensation current of the current windshield, and less than or equal to the preset maximum current value of the current windshield. The decondensation removal unit is used to control the evaporator to turn on heating when the current is within a third preset range, so as to evaporate the condensation inside the air conditioner casing and discharge the evaporated condensation moisture to the outside.

9. An air conditioner for implementing the decondensation control method as described in any one of claims 1 to 7, characterized in that, include: The indoor unit is equipped with a humidity sensor and a pipe temperature sensor. The humidity sensor is used to detect the indoor humidity, and the pipe temperature sensor is used to detect the evaporator pipe temperature of the indoor unit. A fresh air device, connecting the interior of the indoor unit to the outside, is used to exhaust the condensed moisture that evaporates inside the air conditioner's casing to the outside.

10. The air conditioner according to claim 9, characterized in that, The fresh air device is provided with a first air outlet, a second air outlet and a third air outlet. The first air outlet is connected to the outside, the second air outlet is connected to the inside, and the third air outlet is connected to the inside of the casing of the indoor unit. When it is necessary to discharge condensed moisture to the outside, the first and third air vents are controlled to open, the second air vent is controlled to close, and the fresh air device is controlled to discharge the condensed moisture evaporated inside the air conditioner casing to the outside.

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