Control method for treating condensate water on surface of evaporator of air conditioner and air conditioner

Abstract

The invention relates to the technical field of air conditioners, in particular to a control method for treating condensate water on the surface of an evaporator of an air conditioner and the air conditioner, and aims to solve the problem that user experience is affected after water is hung on the evaporator of the air conditioner in the prior art. In order to achieve the purpose, the control method for processing the condensate water on the surface of the evaporator of the air conditioner comprises the steps that the air conditioner is controlled to execute a refrigeration mode, and detection data of a draught fan of an indoor unit of the air conditioner and preset data corresponding to the detection data are obtained; determining whether a difference value between the detection data and preset data is within a limit range; when the difference value between the detection data and the preset data is not within the limit range, the air conditioner is controlled to execute an air supply mode of T1 time; the air supply mode is one of controlling the fan to operate at the first rotating speed or controlling the fan to operate alternately at the first rotating speed and the second rotating speed, the first rotating speed is larger than the rotating speed of the fan of the air conditioner in the refrigeration mode, and the first rotating speed is larger than the second rotating speed. The problem that heat exchange is affected after water is hung on the evaporator is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular provides a control method for processing condensed water on the surface of an evaporator of an air conditioner and an air conditioner. Background Art

[0002] With the continuous improvement of living standards, air conditioners are appearing more and more in people's lives. When the air conditioner is used for a long time in summer, the temperature of the evaporator tube in the air conditioner indoor unit remains low. When the air blows through, the water vapor in the air will be cooled and liquefied on the surface of the evaporator. If there is serious water on the surface of the evaporator, it may cause poor ventilation and heat exchange of the air conditioner. At the same time, there will be problems such as reduced air volume and increased energy consumption, which will affect the user experience.

[0003] Accordingly, the art needs a new control method for processing condensed water on the surface of the air conditioner evaporator to solve the problem in the prior art that the condensed water on the air conditioner evaporator affects the user experience. Summary of the invention

[0004] The present invention aims to solve the above technical problem, that is, to solve the problem in the prior art that water is hung on the evaporator of the air conditioner, which affects the user experience.

[0005] In a first aspect, the present invention provides a control method for processing condensed water on the surface of an evaporator of an air conditioner, the control method comprising: controlling the air conditioner to execute a cooling mode, obtaining detection data of a fan of an indoor unit of the air conditioner and preset data corresponding to the detection data; confirming whether a difference between the detection data and the preset data is within a limit range; when the difference between the detection data and the preset data is not within the limit range, controlling the air conditioner to execute an air supply mode for a time T1; the air supply mode is one of controlling the fan to operate at a first speed or controlling the fan to operate alternately at a first speed and a second speed, wherein the first speed is greater than the speed of the fan of the air conditioner in the cooling mode, and the first speed is greater than the second speed.

[0006] In the preferred technical solution of the control method for processing condensed water on the evaporator surface of the air conditioner, when the acquired detection data is the phase current I of the fan and the acquired preset data is the first phase current preset value I0, the step of "confirming whether the difference between the detection data and the preset data is within the limit range; when the difference between the detection data and the preset data is not within the limit range, controlling the air conditioner to execute the air supply mode for T1 time" further includes: confirming whether the difference between the phase current I and the first phase current preset value I0 is greater than the first phase current limit value I1 and less than the second phase current limit value I2; when I-I0≤I1 or I-I0≥I2, controlling the air conditioner to execute the air supply mode for T1 time; wherein, the first phase current limit value I1 is less than the second phase current limit value I2.

[0007] In the preferred technical scheme of the control method for processing condensed water on the surface of the evaporator of the air conditioner, the control method further includes: reacquiring the phase current I after the air supply mode is executed for T1 time; confirming whether the difference between the phase current I and the first phase current preset value I0 is greater than the first phase current limit value I1 and less than the second phase current limit value I2; when I-I0≥I2 or I-I0≤I1, continuing to execute the air supply mode for T1 time; and / or, when I1<I-I0<I2, no longer executing the air supply mode.

[0008] In the preferred technical solution of the control method for processing condensed water on the surface of the evaporator of the air conditioner, when the acquired detection data is the rotation speed R of the fan and the acquired preset data is the first rotation speed preset value R0 of the fan, the step of "confirming whether the difference between the detection data and the preset data is within the limit range; when the difference between the detection data and the preset data is not within the limit range, controlling the air conditioner to execute the air supply mode for T1 time" further includes: confirming whether the difference between the rotation speed R and the first rotation speed preset value R0 is greater than the first rotation speed limit value R1 and less than the second rotation speed limit value R2; when R-R0≤R1 or R-R0≥R2, controlling the air conditioner to execute the air supply mode for T1 time; wherein, the first rotation speed limit value R1 is less than the second rotation speed limit value R2.

[0009] In the preferred technical solution of the control method for processing condensed water on the surface of the evaporator of the air conditioner, the control method further includes: re-obtaining the speed R of the fan after the air supply mode is executed for T1 time; confirming whether the difference between the speed R and the first speed preset value R0 is greater than the first speed limit value R1 and less than the second speed limit value R2; when R-R0≥R2 or R-R0≤R1, continuing to execute the air supply mode for T1 time; and / or, when R1<R-R0<R2, no longer executing the air supply mode.

[0010] In the preferred technical solution of the control method for processing condensed water on the surface of the evaporator of the air conditioner, the control method further includes: obtaining the number of executions of the air supply mode; when the number of executions is greater than or equal to three times, controlling the air conditioner to start an alarm mode.

[0011] In the preferred technical solution of the control method for processing condensed water on the surface of the evaporator of the air conditioner, the control method further includes: clearing the execution times to zero when or after the air conditioner stops executing the air supply mode or starts the alarm mode.

[0012] The present invention also provides an air conditioner, which can execute the control method for processing condensed water on the surface of the evaporator of the air conditioner as described in any of the above technical solutions. The air conditioner includes an indoor unit, a fan and an evaporator are arranged in the indoor unit, an air outlet is arranged on the indoor unit, and the evaporator is arranged between the fan and the indoor unit so that air can pass through the evaporator driven by the fan and then flow out of the air outlet.

[0013] In the preferred technical solution of the above-mentioned air conditioner, the indoor unit also includes a water receiving box, which is arranged on the lower side of the evaporator, and a water baffle is arranged on the side of the air outlet close to the evaporator, and a water guide groove is arranged at the bottom of the water baffle, and the water guide groove is connected to the water receiving box through a water pipe. Condensed water blown from the evaporator to the air outlet is blocked by the water baffle, and the condensed water blocked by the water baffle flows downward into the water guide groove, and the condensed water in the water guide groove can flow into the water receiving box through the water pipe.

[0014] In the preferred technical solution of the above air conditioner, the evaporator is inclined toward the fan, and an air guide plate is provided between the fan and the evaporator, and the air guide plate can guide the fan to blow air toward the upper part of the evaporator and then toward the water baffle.

[0015] When the above technical solution is adopted, the present invention can determine whether the evaporator is water-logged based on the detected detection data of the fan and the preset data and compare them. When the difference between the detection data and the preset data is not within the limit range, it proves that there is condensed water on the evaporator. Too much condensed water attached to the evaporator will affect the heat exchange of the evaporator and thus affect the indoor effect. Therefore, after determining that the evaporator is water-logged, the present invention reduces the amount of water-logged evaporator by executing the air supply mode, thereby reducing the possibility of the evaporator affecting the heat exchange due to water-logging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0017] Figure 1is a cross-sectional view of an indoor unit of an air conditioner of the present invention;

[0018] Figure 2 It is a flowchart of the specific steps of the control method for processing condensed water on the surface of the evaporator of the air conditioner of the present invention;

[0019] Figure 3 It is a flowchart of the steps of a first specific implementation method of the control method for processing condensed water on the surface of the evaporator of the air conditioner of the present invention;

[0020] Figure 4 is a flowchart of steps of a second specific implementation method of the method for controlling condensed water on the surface of an evaporator of an air conditioner according to the present invention;

[0021] Figure 5 is a flowchart of the steps of a third specific implementation method of the method for controlling condensed water on the surface of an evaporator of an air conditioner according to the present invention;

[0022] Figure 6 It is a flowchart of the steps of a fourth specific implementation method of the control method for processing condensed water on the surface of the evaporator of the air conditioner of the present invention.

[0023] List of reference numerals:

[0024] 1. Indoor unit; 11. Fan; 12. Evaporator; 13. Air outlet; 14. Water baffle; 141. Water guide groove; 15. Air guide plate; 16. Water collection box. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0026] It should be noted that in the description of the present invention, the terms "upper", "lower", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figure 1-6 As shown, in order to solve the problem of the prior art that the evaporator of the air conditioner is hung with water and affects the user experience, the air conditioner of the present invention includes an indoor unit 1, such as Figure 1 As shown, a fan 11 and an evaporator 12 are provided in the indoor unit 1, an air outlet 13 is provided on the indoor unit 1, and the evaporator 12 is arranged between the fan 11 and the indoor unit 1, so that the air passes through the evaporator 12 driven by the fan 11 and then flows out of the air outlet 13. The water receiving box 16 is arranged on the lower side of the evaporator 12, and a water baffle 14 is arranged on the side of the air outlet 13 close to the evaporator 12. A water guide groove 141 is arranged at the bottom of the water baffle 14, and the water guide groove 141 is connected to the water receiving box 16 through a water pipe. In the cooling mode, when the fan 11 is started, the water vapor in the air blown from the evaporator 12 to the air outlet 13 is cooled into condensed water. When the water baffle 14 is set at the air outlet 13, the condensed water is blocked by the water baffle 14 in the process of moving toward the air outlet 13. The condensed water blocked by the water baffle 14 flows downward into the water guide groove 141, and then flows into the water receiving box 16 through a water pipe (not shown in the figure). In order to ensure that the evaporator 12 can fully contact the air blown out by the fan 11, the evaporator 12 is tilted toward the fan 11. At this time, the tilted evaporator 12 can increase the contact area with the air compared to the evaporator 12 that is vertically set. Since the air contains condensed water after passing through the evaporator 12, in order to prevent the fan 11 from blowing the condensed water directly out of the air outlet 13 and causing the condensed water to fall into the room, an air guide plate 15 is provided between the fan 11 and the evaporator 12. The air guide plate 15 can guide the fan 11 to blow the air to the upper part of the evaporator 12 and then make the air pass through the evaporator 12 and then blow to the water baffle 14. At this time, the condensed water mixed in the air will be blocked by the water baffle 14, and the rest of the air enters the room from the air outlet 13.

[0029] The above air conditioner can execute the control method for processing condensed water on the surface of the evaporator of the air conditioner, such as Figure 2 As shown, the control method for processing condensed water on the surface of the evaporator 12 of the air conditioner of the present invention specifically includes the following steps:

[0030] Step S100: controlling the air conditioner to execute a cooling mode, obtaining detection data of the fan 11 of the indoor unit 1 of the air conditioner and preset data corresponding to the detection data;

[0031] Step S200: confirm whether the difference between the detected data and the preset data is within the limit range;

[0032] Step S300: When the difference between the detected data and the preset data is not within the limit range, the air conditioner is controlled to execute the air supply mode for T1 time.

[0033] The air supply mode is one of controlling the fan 11 to operate at a first speed or controlling the fan 11 to operate alternately at a first speed and a second speed, the first speed being greater than the speed of the fan 11 in the cooling mode of the air conditioner, and the first speed being greater than the second speed. In the cooling mode of the air conditioner, air enters the indoor unit 1 from the air inlet, and the fan 11 drives the air to blow toward the evaporator 12. The refrigerant in the evaporator 12 absorbs heat from the air passing through it by evaporation. Water vapor in the air may become condensed water after absorbing heat. When dirt or other impurities appear on the surface of the evaporator 12, the condensed water may adhere to the surface of the evaporator 12, which will eventually affect the heat exchange of the evaporator 12, increase the energy consumption of the air conditioner, and also affect the indoor effect. Since the evaporator 12 will affect the operation of the fan 11 when water is collected on the surface, the present invention determines whether water is collected on the surface of the evaporator 12 by detecting the detection data of the fan 11 and comparing it with the preset data. When the difference between the detection data and the preset data is not within the corresponding limit range, it proves that water is collected on the surface of the evaporator 12. At this time, the air conditioner is controlled to execute the air supply mode. The air supply mode can be that the fan 11 runs at a first speed, or can be that the fan 11 runs alternately at a first speed and a second speed. The above is not restrictive and can be set according to the needs of technicians in this field. For example, when it is determined that the evaporator 12 is condensed, the fan 11 can be controlled to run at the first speed for T1 time, that is, the speed of the fan 11 is increased for T1 time, so as to blow off the condensed water on the surface of the evaporator 12. After detecting that the evaporator 12 is in the condensed state, the fan 11 can be controlled to run alternately at the first speed and the second speed for T1 time. At this time, if there is dirt on the surface of the evaporator 12, the condensed water on the surface of the evaporator 12 can be removed by alternating the first speed (high speed) and the second speed (low speed) of the fan 11. It should also be noted that the air supply mode of the fan 11 is described below by taking the example of controlling the fan 11 to run at the first speed.

[0034] like Figure 3 As shown, the first specific implementation method of the control method for processing condensed water on the surface of the evaporator of the air conditioner of the present invention comprises the following steps:

[0035] Step S110: Control the air conditioner to execute the cooling mode, and obtain the phase current I of the fan 11 of the indoor unit 1 of the air conditioner and the first phase current preset value I0 corresponding to the phase current I;

[0036] Step S210: confirm whether the difference between the phase current I and the first phase current preset value I0 is greater than the first phase current limit value I1 and less than the second phase current limit value I2;

[0037] Step S310: When I-I0≤I1 or I-I0≥I2, the air conditioner is controlled to execute the air supply mode for T1 time.

[0038] The first phase current limit value I1 is smaller than the second phase current limit value I2. When the detection data of the fan 11 to be obtained is the phase current I, it is also necessary to obtain the preset first phase current preset value I0, and compare whether the difference between the phase current I and the first phase current preset value I0 is greater than the first phase current limit value I1 and smaller than the second phase current limit value I2. When I-I0≤I1 or I-I0≥I2, it is proved that the degree of water hanging on the surface of the evaporator 12 affects the operation of the fan 11. At this time, it is necessary to control the air conditioner to process the condensed water of the evaporator 12. Therefore, the air conditioner is controlled to execute the air supply mode of T1 time, that is, by increasing the speed of the fan 11 to the first speed, the condensed water on the surface of the evaporator 12 is blown off. The above-mentioned water baffle 14 is arranged on the indoor unit 1 of the air conditioner to minimize the amount of condensed water blown into the room.

[0039] like Figure 4 As shown, a second specific implementation of the method for controlling condensed water on the surface of the evaporator of the air conditioner according to the present invention is shown, which specifically includes the following steps:

[0040] Step S110: Control the air conditioner to execute the cooling mode, and obtain the phase current I of the fan 11 of the indoor unit 1 of the air conditioner and the first phase current preset value I0 corresponding to the phase current I;

[0041] Step S210: confirm whether the difference between the phase current I and the first phase current preset value I0 is greater than the first phase current limit value I1 and less than the second phase current limit value I2;

[0042] Step S310: When I-I0≤I1 or I-I0≥I2, the air conditioner is controlled to execute the air supply mode for T1 time;

[0043] Step S410: after the air supply mode is executed for T1 time, the phase current I is reacquired;

[0044] Step S510: confirm whether the difference between the phase current I and the first phase current preset value I0 is greater than the first phase current limit value I1 and less than the second phase current limit value I2;

[0045] Step S511: When I-I0≥I2 or I-I0≤I1, continue to execute the air supply mode for T1 time;

[0046] Step S512: When I1<I-I0<I2, the air supply mode is no longer executed.

[0047] After the air supply mode is performed for T1 time, it is necessary to reconfirm whether the difference between the phase current I and the first phase current preset value I0 is greater than the first phase current limit value I1 and less than the second phase current limit value I2. When I-I0≥I2 or I-I0≤I1, the air supply mode continues to be executed. When I1<I-I0<I2, it proves that although there is a certain gap between the phase current I of the fan 11 and the first phase current limit value I0 at this time, the difference is within a reasonable range. At this time, the degree of water hanging on the surface of the evaporator 12 has little effect on the heat exchange of the evaporator 12. Therefore, there is no need to execute the air supply mode again, that is, there is no need to increase the speed of the fan 11 to deal with the condensed water on the surface of the evaporator 12.

[0048] like Figure 5 As shown, a third specific implementation of the method for controlling condensed water on the surface of the evaporator of the air conditioner according to the present invention is shown, which specifically includes the following steps:

[0049] Step S120: Control the air conditioner to execute the cooling mode, and obtain the rotation speed R of the fan 11 of the indoor unit 1 of the air conditioner and a first rotation speed preset value R0 corresponding to the rotation speed R;

[0050] Step S220: confirm whether the difference between the rotation speed R and the first rotation speed preset value R0 is greater than the first rotation speed limit value R1 and less than the second rotation speed limit value R2;

[0051] Step S320: When R-R0≤R1 or R-R0≥R2, the air conditioner is controlled to execute the air supply mode for T1 time.

[0052] The above-mentioned first speed limit value R1 is smaller than the second speed limit value R2. The detection data of the fan 11 may be the phase current I or the speed R of the fan 11. When the detection data of the fan 11 to be obtained is the speed R of the fan 11, it is also necessary to obtain the preset first speed preset value R0. At the same time, compare whether the difference between the speed R and the first speed preset value R0 is greater than the first speed limit value R1 and less than the second speed limit value R2. When R-R0≤R1 or R-R0≥R2, it proves that the degree of water hanging on the surface of the air conditioner affects the operation of the fan 11. At this time, it is necessary to control the air conditioner to process the condensed water on the surface of the evaporator 12. Therefore, the air conditioner is controlled to execute the air supply mode for the T1 time.

[0053] like Figure 6 As shown, a fourth specific implementation of the method for controlling condensed water on the surface of the evaporator of the air conditioner according to the present invention is shown, which specifically includes the following steps:

[0054] Step S120: Control the air conditioner to execute the cooling mode, and obtain the rotation speed R of the fan 11 of the indoor unit 1 of the air conditioner and a first rotation speed preset value R0 corresponding to the rotation speed R;

[0055] Step S220: confirm whether the difference between the rotation speed R and the first rotation speed preset value R0 is greater than the first rotation speed limit value R1 and less than the second rotation speed limit value R2;

[0056] Step S320: When R-R0≤R1 or R-R0≥R2, the air conditioner is controlled to execute the air supply mode for T1 time;

[0057] Step S420: After the air supply mode is executed for T1 time, the rotation speed R of the fan 11 is re-obtained;

[0058] Step S520: confirm whether the difference between the rotation speed R and the first rotation speed preset value R0 is greater than the first rotation speed limit value R1 and less than the second rotation speed limit value R2;

[0059] Step S521: When R-R0≥R2 or R-R0≤R1, continue to execute the air supply mode for T1 time;

[0060] Step S522: When R1<R-R0<R2, the air supply mode is no longer executed.

[0061] After executing the air supply mode for T1 time, it is necessary to reconfirm whether the difference between the rotational speed R and the first rotational speed preset value R0 is greater than the first rotational speed limit value R1 and less than the second rotational speed limit value R2. When R-R0≤R1 or R-R0≥R2, the air conditioner continues to execute the air supply mode. When R1<R-R0<R2, it proves that although there is a certain gap between the rotational speed R of the fan 11 and the first rotational speed preset value R0, the difference is within a reasonable range. At this time, the degree of water hanging on the surface of the evaporator 12 has little effect on the heat exchange of the evaporator 12. Therefore, there is no need to execute the air supply mode.

[0062] When performing the above-mentioned air supply mode, the number of executions of the air supply mode can be obtained. When the number of executions is greater than or equal to three times, it is proved that only changing the rotation speed of the fan 11 cannot improve the water hanging condition of the evaporator 12. Therefore, the air conditioner can be controlled to start the alarm mode to remind the user to check the condition of the evaporator 12. At the same time or after the air conditioner no longer executes the air supply mode or starts the alarm mode, the number of executions will be cleared to ensure the normal use of the air conditioner next time.

[0063] It should be noted that R2 is included in step S521 above, that is, when R-R0=R2, the air supply mode of T1 time continues to be executed. Since R2 is a limit value, it can also be included in step S522, that is, when R-R0=R2, the air supply mode is no longer executed. The above is not restrictive and can be set according to the needs of technical personnel in this field. The division of I1, I2, and R1 is the same, and will not be repeated here.

[0064] To sum up, the present invention can determine whether the evaporator 12 is water-hung based on the acquired detection data of the fan 11 and the preset data and compare them. When the difference between the detection data and the preset data is not within the limit range, it proves that there is condensed water on the evaporator 12. Too much condensed water attached to the evaporator 12 will affect the heat exchange of the evaporator 12 and increase energy consumption. Therefore, after determining that the evaporator 12 is water-hung, the present invention reduces the amount of water hung on the evaporator 12 by executing the air supply mode, thereby reducing the possibility of the evaporator 12 affecting the heat exchange due to water hanging.

[0065] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A control method for treating condensed water on the surface of an evaporator of an air conditioner, characterized in that: The control method comprises: Controlling the air conditioner to execute a cooling mode, acquiring detection data of a fan of an indoor unit of the air conditioner and preset data corresponding to the detection data; Confirm whether the difference between the detected data and the preset data is within a limit range; When the difference between the detection data and the preset data is not within the limit range, controlling the air conditioner to execute the air supply mode for T1 time; The air supply mode is one of controlling the fan to operate at a first speed or controlling the fan to operate alternately at a first speed and a second speed. The first rotation speed is greater than the rotation speed of the fan of the air conditioner in the cooling mode, and the first rotation speed is greater than the second rotation speed.

2. The control method for processing condensed water on the surface of the evaporator of the air conditioner according to claim 1, characterized in that: When the acquired detection data is the phase current I of the fan, and the acquired preset data is the first phase current preset value I0, "confirming whether the difference between the detection data and the preset data is within a limit range; When the difference between the detection data and the preset data is not within the limit range, the step of controlling the air conditioner to execute the air supply mode for T1 time further includes: Confirm whether the difference between the phase current I and the first phase current preset value I0 is greater than the first phase current limit value I1 and less than the second phase current limit value I2; When I-I0≤I1 or I-I0≥I2, the air conditioner is controlled to execute the air supply mode for T1 time; The first phase current limit value I1 is smaller than the second phase current limit value I2.

3. The control method for processing condensed water on the surface of the evaporator of the air conditioner according to claim 2, characterized in that: The control method further comprises: After the air supply mode is executed for T1 time, the phase current I is reacquired; Confirm whether the difference between the phase current I and the first phase current preset value I0 is greater than the first phase current limit value I1 and less than the second phase current limit value I2; When I-I0≥I2 or I-I0≤I1, continue to execute the air supply mode for T1 time; and / or, When I1<I-I0<I2, the air supply mode is no longer executed.

4. The control method for processing condensed water on the surface of the evaporator of the air conditioner according to claim 1, characterized in that: When the acquired detection data is the rotation speed R of the fan, and the acquired preset data is the first rotation speed preset value R0 of the fan, "confirming whether the difference between the detection data and the preset data is within a limit range; When the difference between the detection data and the preset data is not within the limit range, the step of controlling the air conditioner to execute the air supply mode for T1 time further includes: confirming whether the difference between the rotation speed R and the first rotation speed preset value R0 is greater than a first rotation speed limit value R1 and less than a second rotation speed limit value R2; When R-R0≤R1 or R-R0≥R2, the air conditioner is controlled to execute the air supply mode for T1 time; The first rotation speed limit value R1 is smaller than the second rotation speed limit value R2.

5. The control method for processing condensed water on the surface of the evaporator of the air conditioner according to claim 4, characterized in that: The control method further comprises: After the air supply mode is executed for T1 time, the speed R of the fan is re-acquired; confirming whether the difference between the rotation speed R and the first rotation speed preset value R0 is greater than a first rotation speed limit value R1 and less than a second rotation speed limit value R2; When R-R0≥R2 or R-R0≤R1, continue to execute the air supply mode for T1 time; and / or, When R1<R-R0<R2, the air supply mode is no longer executed.

6. The control method for processing condensed water on the surface of the evaporator of the air conditioner according to claim 3 or 5, characterized in that: The control method further comprises: Get the number of executions of the air supply mode; When the execution times are greater than or equal to three times, the air conditioner is controlled to start an alarm mode.

7. The control method for processing condensed water on the surface of the evaporator of the air conditioner according to claim 6, characterized in that: The control method further comprises: When the air conditioner no longer executes the air supply mode or starts the alarm mode or thereafter, the execution times are cleared.

8. An air conditioner, characterized in that: The air conditioner can execute the control method for processing condensed water on the evaporator surface of the air conditioner according to any one of claims 1 to 7. The air conditioner comprises an indoor unit, wherein a fan and an evaporator are arranged in the indoor unit, an air outlet is arranged on the indoor unit, and the evaporator is arranged between the fan and the indoor unit so that air passes through the evaporator driven by the fan and then flows out of the air outlet.

9. The air conditioner according to claim 8, wherein the indoor unit further comprises a water receiving box, wherein the water receiving box is arranged at the lower side of the evaporator, wherein: A water baffle is provided on the side of the air outlet close to the evaporator, and a water guide groove is provided at the bottom of the water baffle. The water guide groove is connected to the water receiving box through a water pipe. The condensed water blown from the evaporator to the air outlet is blocked by the water baffle, and the condensed water blocked by the water baffle flows downward into the water guide groove. The condensed water in the water guide groove can flow into the water receiving box through the water pipe.

10. The air conditioner according to claim 9, characterized in that: The evaporator is inclined toward the fan, and an air guide plate is arranged between the fan and the evaporator. The air guide plate can guide the fan to blow air toward the upper part of the evaporator and then toward the water baffle.

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