Indoor unit, air conditioner control method, device, equipment and medium

Abstract

The invention discloses an indoor unit, an air conditioner control method, device and equipment and a medium. The indoor unit comprises an air conditioner body, an evaporator, a water pan and a humidifying device, the evaporator is arranged in the air conditioner body, the water pan is arranged below the evaporator to receive condensate water, the air conditioner body is provided with an air return port, the humidifying device comprises a water absorption filter screen and a condensate water supply assembly, the water absorption filter screen covers the air return port, and the condensate water supply assembly is arranged on the water absorption filter screen. And the condensate water supply assembly is used for wetting the water absorption filter screen with condensate water in the water pan. The condensation water supply assembly is used for wetting the water absorption filter screen, after return air with low humidity passes through the wet water absorption filter screen at the return air inlet, the humidity of the return air can be greatly improved, and therefore the amount of condensation water on the surface of the evaporator is increased, and the self-cleaning effect is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of air conditioners, and in particular to a control method, device, equipment and medium for an indoor unit and an air conditioner. Background Art

[0002] As consumers' requirements for air quality increase, air conditioners with health functions have gradually become the mainstream trend in the market and industry. Especially in terms of self-cleaning function, due to its excellent sterilization effect, simple operation process and economic cost advantage, it has become one of the key technologies that major air conditioner manufacturers are vying to introduce. The self-cleaning process of air conditioners is mainly divided into four stages: condensation, freezing, defrosting, and drying. Specifically, in the condensation stage, the system will produce condensation water; then enter the freezing stage, when the temperature of the evaporator drops rapidly, causing the condensation water on its surface to form frost or ice. This physical change helps to peel off dust and other pollutants attached to the evaporator; then, in the defrosting stage, as the temperature rises, these frosts melt and carry pollutants along the drainage pipe. Finally, dry the evaporator and dry the surface of the evaporator to prevent bacteria from growing.

[0003] However, existing self-cleaning solutions face the following problems: When indoor air passes through the evaporator with a lower temperature, the moisture in the air condenses into water droplets on the surface of the evaporator, and eventually flows into the water collection tray and is discharged through the drain pipe. Although this process effectively reduces the humidity in the outlet airflow, long-term operation will cause the moisture content in the return airflow to gradually decrease, thereby reducing the amount of water that can condense on the evaporator surface. As a result, the amount of frost that can be formed to remove pollutants in the subsequent freezing stage is also reduced, which in turn weakens the effect of self-cleaning. Summary of the invention

[0004] The present invention provides a control method, device, equipment and medium for an indoor unit and an air conditioner, aiming to solve the problem that the condensed water on the evaporator surface of the existing air conditioner during the condensation stage affects the self-cleaning effect.

[0005] In the first aspect, an embodiment of the present invention provides an indoor unit, comprising: an air-conditioning body, an evaporator, a water receiving tray and a humidifying device, wherein the evaporator is arranged in the air-conditioning body, the water receiving tray is arranged below the evaporator to receive condensed water, the air-conditioning body is provided with a return air outlet, the humidifying device comprises a water absorption filter and a condensation water supply component, the water absorption filter is covered on the return air outlet, and the condensation water supply component is used to moisten the water absorption filter with the condensed water in the water receiving tray.

[0006] Furthermore, the condensation water supply component includes a water tank and a pumping component, the pumping component is respectively connected to the water tank and the water receiving pan, the pumping component is used to pump condensation water into the water tank, and / or, to pump condensation water in the water tank into the water receiving pan; wherein the water absorption filter is partially arranged in the water tank to be infiltrated by condensation water.

[0007] Furthermore, the condensing water supply assembly also includes a first water level sensor and a second water level sensor, the first water level sensor and the second water level sensor are arranged in the water storage tank, and the height of the first water level sensor is higher than the height of the second water level sensor.

[0008] Furthermore, the water tank is arranged at one side edge of the return air outlet, and a socket is opened on one side wall of the water tank. One side edge of the water absorption filter is inserted into the water tank through the socket and hangs down to the bottom of the water tank.

[0009] Furthermore, the height of the first water level sensor is lower than the height of the socket.

[0010] Furthermore, the height of the first water level sensor is H1, H1=(8-15)×10 -3 V 空 , where V 空 It is the air volume in the condensation stage.

[0011] Furthermore, the pumping assembly includes a water pump, a first water pipe and a second water pipe, one end of the first water pipe is connected to the bottom of the water storage tank, and the other end is connected to the water pump, one end of the second water pipe is connected to the water pump, and the other end is connected to the water receiving tray.

[0012] In a second aspect, the present invention further provides a control method for an air conditioner, which is applied to the indoor unit of the first aspect, and the method comprises:

[0013] If the air conditioner enters the condensation stage of the self-cleaning mode, after running for a first preset time, the first water level sensor and the second water level sensor are controlled to collect water level information;

[0014] The pumping component is controlled to pump forward or reverse according to the water level information; wherein the forward pumping is to pump condensed water from the water receiving tray to the water storage tank, and the reverse pumping is to pump condensed water from the water storage tank to the water receiving tray.

[0015] In a third aspect, the present invention further provides a control device for an air conditioner, comprising a unit for executing the method of the second aspect.

[0016] In a fourth aspect, an embodiment of the present invention further provides a computer device, comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the method of the second aspect when executing the computer program.

[0017] In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium, wherein the storage medium stores a computer program, and the computer program, when executed by a processor, can implement the method of the second aspect described above.

[0018] The present invention provides a control method, device, equipment and medium for an indoor unit and an air conditioner. The indoor unit includes: an air conditioner body, an evaporator, a water receiving tray and a humidifying device, the water receiving tray receives condensed water generated by the evaporator, the humidifying device is arranged at the return air outlet of the air conditioner body, the humidifying device includes a water absorption filter and a condensation water supply component, the water absorption filter covers the return air outlet, the condensation water supply component is used to wet the water absorption filter with condensed water in the water receiving tray, the water absorption filter is wetted, then when the return air with low humidity passes through the wetted water absorption filter at the return air outlet, the humidity of the return air will be greatly increased, thereby increasing the amount of condensed water on the surface of the evaporator and improving the self-cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0020] Figure 1 is a schematic diagram of an indoor unit according to an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of a humidifying device of an indoor unit according to an embodiment of the present invention;

[0022] Figure 3 It is a side view schematic diagram of a humidifying device of an indoor unit according to an embodiment of the present invention;

[0023] Figure 4 It is a cross-sectional schematic diagram of a water storage tank of a humidifying device of an indoor unit according to an embodiment of the present invention;

[0024] Figure 5 Shown Figure 4 A magnified view of part A;

[0025] Figure 6 A schematic flow chart of the steps of a method for controlling an air conditioner according to an embodiment of the present invention;

[0026] Figure 71 is a schematic diagram of a sub-step flow chart of a method for controlling an air conditioner according to an embodiment of the present invention;

[0027] Figure 8 A control logic diagram of a control method for an air conditioner according to an embodiment of the present invention;

[0028] Fig. 9 A schematic block diagram of a control device for an air conditioner provided by an embodiment of the present invention;

[0029] Fig.10 A schematic block diagram of a computer device provided in an embodiment of the present invention;

[0030] Reference numerals:

[0031] 1. Air conditioner body; 11. Return air outlet; 2. Humidifier; 21. Water absorption filter; 22. Water storage tank; 221. Socket; 23. First water level sensor; 24. Second water level sensor; 25. Water pump; 26. First water pipe; 27. Second water pipe. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0034] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0035] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0036] As used in this specification and the appended claims, the term "if" may be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if [described condition or event] is detected" may be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]," depending on the context.

[0037] In order to facilitate understanding of the embodiments of the present invention, the self-cleaning mode of the air conditioner is briefly introduced first. The self-cleaning function of the air conditioner is respectively composed of the condensation stage, the freezing stage, the defrosting stage, and the drying stage in the order of cleaning (some air conditioners include this stage in the defrosting stage). Condensation water is generated in the condensation stage. After entering the freezing stage, the evaporator temperature drops sharply, and the condensation water on the surface of the evaporator frosts or freezes, so that dust and other dirt on the surface of the evaporator are peeled off. After defrosting, the dirt flows away with the condensed water. The more condensation water on the evaporator in the condensation stage, the more frost will be generated in the freezing stage, and the more dirt will be taken away, and the better the self-cleaning effect will be.

[0038] In order to facilitate understanding of the present invention, the indoor unit provided by the embodiment of the present invention is first described. Figure 1 and Figure 2 , Figure 1 is a schematic diagram of an indoor unit according to an embodiment of the present invention, Figure 2 Schematic diagram of a humidifying device 2 of an indoor unit according to an embodiment of the present invention. The embodiment of the present invention provides an indoor unit, comprising: an air conditioner body 1, an evaporator, a water receiving tray and a humidifying device 2, wherein the evaporator is arranged in the air conditioner body 1, the water receiving tray is arranged below the evaporator to receive condensed water, the air conditioner body 1 is provided with a return air port 11, the humidifying device 2 comprises a water absorption filter 21 and a condensation water supply component, the water absorption filter 21 is covered on the return air port 11, and the condensation water supply component is used to moisten the water absorption filter 21 with the condensed water in the water receiving tray.

[0039] Specifically, the evaporator (not shown in the figure) and the water receiving tray (not shown in the figure) are arranged in the air conditioner body 1, and the water receiving tray is placed below the evaporator. After the indoor return air passes through the evaporator with a lower temperature, condensation water, i.e. condensed water, will be generated on the surface of the evaporator. The condensed water will slide into the water receiving tray and be discharged through the drain pipe. The return air inlet 11 is arranged at the top of the air conditioner body 1, and the return air enters from the top of the air conditioner body 1 and flows to the evaporator. The humidification device 2 is provided with a water absorption filter 21 and a condensation water supply component. The water absorption filter 21 covers the return air inlet 11. The water absorption filter 21 is composed of a fiber fabric with strong water absorption or other materials with strong water absorption, and a frame for fixing the fiber fabric, and plays the role of filtering and humidifying the indoor return air. The condensation water supply component is arranged in the air conditioner body 1, and can be specifically arranged on a side close to the control box. The condensation water supply component is used to provide the condensation water in the water receiving tray to the water absorption filter 21 for wetting, so that the water absorption filter 21 is wetted. It should be noted that there are many structures of the condensation water supply component, such as a spray structure, a casting structure, an infiltration structure, a diversion structure, etc., which are not limited here. Then, after the condensation water supply component wets the water absorption filter 21, the indoor return air enters from the return air port 11, and is filtered by the water absorption filter 21 while being humidified, thereby increasing the moisture content in the return air. In this way, the evaporator can produce more condensed water, and the condensed water will produce more frost, and more dirt will be taken away, thereby improving the self-cleaning effect.

[0040] Through this embodiment, a water absorption filter 21 is set at the return air inlet 11, and the condensed water supply component uses condensed water to wet the water absorption filter 21, so that the return air with lower humidity is humidified after passing through the water absorption filter 21, thereby greatly increasing the humidity of the return air, thereby increasing the amount of condensed water on the surface of the evaporator. The evaporator can condense more frost and take away more dirt, thereby improving the self-cleaning effect.

[0041] Reference Figure 2 and Figure 3In one embodiment, the condensate water supply component includes a water tank 22 and a pumping component, and the pumping component is connected to the water tank 22 and the water receiving tray respectively, and the pumping component is used to pump the condensate water into the water tank 22, and / or, to pump the condensate water in the water tank 22 into the water receiving tray; wherein the water absorption filter 21 is partially arranged in the water tank 22 to be infiltrated by the condensate water. Specifically, the condensate water supply component of this embodiment adopts an infiltration structure, and the condensate water supply component includes a water tank 22 and a pumping component. The water tank 22 is arranged on one side of the return air outlet 11, and can be on the left or right side of the return air outlet 11, and one side edge of the water absorption filter 21 extends into the water tank 22. The pumping component is used to pump the condensate water in the water receiving tray into the water tank 22, and the water tank 22 stores the condensate water. One side edge of the water absorption filter 21 is immersed in the condensed water in the water storage tank 22, and the water absorption filter 21 is infiltrated by the condensed water, and finally the entire water absorption filter 21 is wetted. The pumping component is connected between the water storage tank 22 and the water receiving tray, and the pumping component can pump forward or reverse. During forward pumping, the condensed water in the water receiving tray is pumped into the water storage tank 22. During reverse pumping, the condensed water in the water storage tank 22 is pumped into the water receiving tray. The control of forward pumping and reverse pumping depends on the amount of condensed water in the water storage tank 22. If the amount of condensed water in the water storage tank 22 is too low, forward pumping is performed; if the amount of condensed water in the water storage tank 22 is too high, reverse pumping is performed. It should be noted that there are many structures of the pumping component, which are not limited here.

[0042] Continue to refer to Figure 2 and Figure 3In this embodiment, the pumping assembly includes a water pump 25, a first water pipe 26 and a second water pipe 27. One end of the first water pipe 26 is connected to the bottom of the water storage tank 22, and the other end is connected to the water pump 25. One end of the second water pipe 27 is connected to the water pump 25, and the other end is connected to the water receiving tray. Specifically, the pumping assembly of this embodiment adopts a structure in which the water pump 25 cooperates with the water pipe, including the water pump 25 and two water pipes. The water pump 25 can rotate forward and reverse. When rotating forward, it extracts forward, and when reversing, it extracts reversely. The two water pipes are the first water pipe 26 and the second water pipe 27. One end of the first water pipe 26 is connected to the bottom of the water storage tank 22 to communicate with the water storage tank 22, and the other end of the first water pipe 26 is connected to one of the interfaces of the water pump 25. One end of the second water pipe 27 is connected to another interface of the water pump 25, and the other end of the second water pipe 27 is connected to the water receiving tray. In this way, when the water pump 25 rotates forward, the condensed water in the water receiving tray will flow into the water storage tank 22 through the second water pipe 27, the water pump 25, and the first water pipe 26 in sequence. When the water pump 25 rotates reversely, the condensed water in the water storage tank 22 will flow into the water receiving tray through the first water pipe 26, the water pump 25, and the second water pipe 27 in sequence. Through the pumping assembly of this embodiment, the forward and reverse extraction of condensed water is realized, and the amount of condensed water in the water storage tank 22 can be reasonably adjusted. When the amount of condensed water is low, water can be replenished, and when the amount of condensed water is high, water can be drained. The structure is simple and the cost is low.

[0043] Reference Figure 4In one embodiment, the condensation water supply component further includes a first water level sensor 23 and a second water level sensor 24, the first water level sensor 23 and the second water level sensor 24 are arranged in the water storage tank 22, and the height of the first water level sensor 23 is higher than the height of the second water level sensor 24. Specifically, a water level sensor is arranged in the water storage tank 22 to judge the amount of condensed water, and two water level sensors are specifically arranged, namely the first water level sensor 23 and the second water level sensor 24. The first water level sensor 23 is a high-level sensor, and the second water level sensor 24 is a low-level sensor, so the height of the first water level sensor 23 in the water storage tank 22 is higher than the second water level sensor 24. When the second water level sensor 24 collects a water level signal, it indicates that the current amount of condensed water is in a low water level state. When both the first sensor and the second sensor collect water level signals, it indicates that the current condensed water is in a high water level state. In this way, the current water level state of the condensed water in the water tank 22 can be determined by combining the water level information collected by the first water level sensor 23 and the second water level sensor 24, and the water pump 25 can be controlled to pump forward or reversely in turn. For example, when the water level is low, the water pump 25 can be controlled to pump forward to replenish the condensed water in the water tank 22; when the water level is high, the water pump 25 can be controlled to pump reversely to reduce the condensed water in the water tank 22. The water level information collected by the two water level sensors is used in conjunction with the water pump 25 to control the increase or decrease of the amount of condensed water in the water tank 22, so as to achieve timely replenishment of water to improve the self-cleaning effect, and timely extraction of water to prevent the condensed water from accumulating in the water tank 22 to breed bacteria and then contaminate the filter and return air.

[0044] Reference Figure 4 and Figure 5In one embodiment, the water tank 22 is disposed at one side edge of the return air outlet 11, and a socket 221 is provided on one side wall of the water tank 22. One side edge of the water absorption filter 21 is inserted into the water tank 22 through the socket 221 and hangs down to the bottom of the water tank 22. Specifically, the water tank 22 is a rectangular tank structure as a whole, and the length of the water tank 22 is equivalent to the length of the short side of the return air outlet 11. The side of the water tank 22 close to the return air outlet 11 is the front side, and the side of the water tank 22 away from the return air outlet 11 is the back side. A long strip socket 221 is provided on the front side wall of the water tank 22, and the socket 221 runs through the inside and outside of the water tank 22. One side edge of the water absorption filter 21, that is, the edge of the short side, is inserted into the socket 221, and penetrates into the water storage tank 22 from the socket 221. The short side edge of the water absorption filter 21 droops inside the water storage tank 22 and immerses in the condensed water of the water storage tank 22. The water absorption filter 21 is fixed by the socket 221 structure. Among them, the short side edge of the water absorption filter 21 can droop vertically to the bottom of the water storage tank 22, or droop at a downward angle to the bottom of the water storage tank 22. The inclined drooping method has a large contact area with the condensed water and high water absorption efficiency. The short side edge of the water absorption filter 21 is fully soaked in condensed water. Since the water absorption filter 21 is made of a material with strong water absorption, the water molecules on the short side edge can gradually penetrate into the entire water absorption filter 21, thereby making the entire water absorption filter 21 moist and wetting the water absorption filter 21.

[0045] Reference Figure 5 In this embodiment, the height of the first water level sensor 23 is lower than the height of the socket 221. Specifically, the height of the front side wall of the water tank 22 is L1, the height of the back side wall of the water tank 22 is L, the height of the socket 221 is L2, the height of the first water level sensor 23 is H1, and the height of the second water level sensor 24 is H2. Since the water absorption filter 21 is inserted from the socket 221 of the front side wall of the water tank 22, the water absorption filter 21 and the socket 221 are not tightly fitted, and there is a certain gap. If the height of the first water level sensor 23 is higher than the height of the socket 221, the condensed water in the water tank 22 will flow out or seep through the gap, thereby affecting the signal acquisition of the first water level sensor 23. Therefore, the height of the first water level sensor 23 is lower than the height of the socket 221, that is, H1<L2, to avoid the outflow of condensed liquid and improve the accuracy of the acquisition of the first water level sensor 23.

[0046] In this embodiment, the height of the first water level sensor 23 is H1, H1=(8-15)×10 -3 V 空 , where V 空is the air volume in the condensation stage. Specifically, in order to maintain a dynamic balance between evaporation and water pump supply, combined with the evaporation effect and the amount of water in the water tank and the water pump, the height of the first water level sensor needs to meet a certain range. Because if the height of the water level sensor is set too low, when the water level in the water tank is lower than this height, the water pump may be emptied, causing damage to the water pump or malfunctioning. Therefore, the minimum height of the water level sensor must ensure that the water pump always has enough water to pump. If the height of the water level sensor is set too high, the water tank may overflow, causing waste and safety hazards. Therefore, the maximum height of the water level sensor must prevent the water tank from overflowing. Moreover, the total capacity of the water storage tank determines the height range of the water level sensor. A larger water tank can allow a higher water level fluctuation range, while a smaller water tank requires more precise water level control. Therefore, the influence of the above factors makes the height of the first sensor have a better range. Under common working conditions, for example, at 27°C indoors, the difference in water content between the return air after humidification and the outlet air after condensation is:

[0047] Q 水量 =(h2-h1)×ρ 空 ×V 空

[0048] Among them, Q 水量 ——Difference in moisture content between inlet and outlet air, g; h2—moisture content of inlet air (27℃ / 95%), g / Kg; h1—moisture content of outlet air (14℃ / 50%), g / Kg; ρ 空 —Air density, Kg / m 3 ; V 空 —Air volume during condensation stage, m 3 / h. The amount of condensed water from the inlet and outlet is equal to the amount of water stored in the water tank, then:

[0049] Q 水量 =ρ 水 ×S 水槽 H1

[0050] Among them, ρ 水 —Water density, Kg / m 3 ; S 水槽 —The bottom area of ​​the sink, m2. After calculation and simplification, the value range of H1 is: H1 = (8-15) × 10 -3 V 空 In addition, usually Of course, it is understandable that H2 may also be other values.

[0051] To sum up, through this embodiment, when entering the condensation stage and generating condensation water, the condensation water generated by the evaporator is pumped into the water storage tank through a water pump, and the fiber fabric of the water absorption filter hangs at the bottom of the water storage tank, and the fiber fabric is soaked by the condensation water, and finally the entire water absorption filter is wetted. When the return air with low humidity passes through the moistened water absorption filter, the humidity of the return air will be greatly increased, and it will condense again when encountering the evaporator with a lower temperature. Such a cycle can keep the amount of condensation water on the surface of the evaporator at a higher level, and can condense more frost. More frost can take away more dirt, thereby improving the self-cleaning effect.

[0052] See also Figure 6 , Figure 6 Flow chart of the control method of the air conditioner provided in the embodiment of the present invention. The indoor unit applied to the above embodiment has been described in detail in the above embodiment. For the sake of brevity of the specification, it will not be repeated here. The control method of the air conditioner is described in detail below. Figure 6 As shown, the method includes the following steps: S110-S120.

[0053] S110, if the air conditioner enters the condensation stage of the self-cleaning mode, after running for a first preset time, controlling the first water level sensor and the second water level sensor to collect water level information;

[0054] S120. Control the pumping component to pump forward or reverse according to the water level information; wherein the forward pumping is to pump condensed water from the water receiving tray to the water storage tank, and the reverse pumping is to pump condensed water from the water storage tank to the water receiving tray.

[0055] In this embodiment, the self-cleaning mode includes a condensation stage, a freezing stage, a defrosting stage, and a drying stage. When the air conditioner enters the self-cleaning mode and is in the condensation stage, the air conditioner is first allowed to run for a first preset time. The first preset time can be, for example, 3 minutes. Of course, it is understandable that it can also be other times. The purpose of running the air conditioner for a period of time is to allow the evaporator to generate a certain amount of condensed water. After that, the water pump starts to run, and at the same time, the first water level sensor and the second water level sensor at the high and low positions start to collect water level information. After obtaining the water level information, the pumping component can be controlled according to the water level information to extract condensed water. The pumping component can extract forward or reverse. When extracting forward, the water pump rotates forward, and the water pump extracts the condensed water in the water receiving tray into the water storage tank. When extracting in reverse, the water pump reverses, and the water pump extracts the condensed water in the water storage tank into the water receiving tray. The control of the forward and reverse extraction of the pumping component depends on the water level information. If the water level is low, it means that condensed water needs to be added at this time, so forward extraction is performed to add more condensed water to the water storage tank; if the water level is high, it means that the condensed water in the water storage tank is full at this time. In order to prevent the condensed water from accumulating in the water tank and breeding bacteria, reverse extraction is performed to reduce the condensed water in the water storage tank. Therefore, through this embodiment, the evaporation and water pump water supply are kept in a dynamic balance. The dynamic balance ensures that the air conditioner accurately supplies water according to the actual evaporation demand, and can maintain efficient operation under different evaporation conditions, thereby improving the overall work efficiency; the dynamic balance ensures that the water level in the water tank is always within a safe range, avoiding dry burning caused by too low a water level and overflow caused by too high a water level, thereby improving safety and reliability.

[0056] In one embodiment, if Figure 7 As shown, the step S120 includes: S121-S125.

[0057] S121, if neither the first water level sensor nor the second water level sensor collects a water level signal, controlling the pumping assembly to pump water in a forward direction at a first pumping speed;

[0058] S122: If the first water level sensor does not collect a water level signal but the second water level sensor collects a water level signal, control the pumping assembly to pump water in a forward direction at a second pumping speed, wherein the second pumping speed is less than the first pumping speed;

[0059] S123, if the first water level sensor collects a water level signal and the second water level sensor does not collect a water level signal, generating water level sensor failure alarm information;

[0060] S124: If both the first water level sensor and the second water level sensor collect water level signals, control the pumping component to stop running;

[0061] S125, after the pumping assembly stops running and the air conditioner runs for a second preset time, controlling the pumping assembly to pump in reverse.

[0062] In this embodiment, the water level signal of the first water level sensor is represented by H 高 , the water level signal of the second water level sensor is expressed as H 低 The first water level sensor collects the water level signal, then H 高 =1, the first water level sensor does not collect the water level signal, then H 高 = 0. When the second water level sensor collects the water level signal, H 低 =1, the second water level sensor does not collect the water level signal, then H 低 = 0. Then, according to whether the first water level sensor and the second water level sensor collect water level signals, there are the following combinations.

[0063] The first one is, H 低 = 0 and H 高 =0, indicating that the condensed water has not reached the low water level and the amount of condensed water is very small. At this time, it means that the water tank needs to be quickly replenished with water, and the water pump starts to run at a higher speed N1, N1 is also the first extraction speed, N1 can be 1200r / min, for example. Of course, it can be understood that N1 can also select other suitable water pump speeds according to the required amount of condensed water.

[0064] The second is, H 低 =1 and H 高 =0, which means that the water in the water tank has reached a low water level and does not need to be replenished quickly. At this time, the water pump switches to a lower speed N2, which is also the second extraction speed. N2 can be 700r / min, for example. N2<N1. Of course, it can be understood that N2 can also select other suitable water pump speeds according to the required amount of condensed water.

[0065] The third type is H 低 = 0 and H 高 =1, which means that one or both of the water level sensors are faulty and a fault alarm message is generated. After the fault is reported, the compressor stops and exits the self-cleaning function.

[0066] The fourth type is H 低 =1 and H 高 =1, which means that the water in the water tank has reached the high water level and the water pump needs to be stopped, otherwise it will cause condensed water to overflow. When the running time reaches the second preset time, which can be 5 minutes, for example, the condensation stage ends, the water pump reverses and pumps the condensed water in the water tank back to the evaporator water tray as soon as possible, and discharges it through the drain hole to prevent the condensed water from accumulating in the water tank and breeding bacteria, thereby contaminating the filter and return air.

[0067] Reference Figure 8 In order to further illustrate the control method of the air conditioner of this embodiment, the control logic of the specific working process of the air conditioner is used for explanation below, which is as follows.

[0068] After the self-cleaning is turned on, it first enters the condensation stage and initially runs for t1 (e.g. t1 = 3 minutes) to generate a certain amount of condensation water. After that, the water pump starts running and the high and low water level sensors start collecting signals. 低 =0,H 高 = 0, if yes, it means that the water tank needs to be replenished, and the water pump starts running at a higher speed N1 (for example, N1 = 1200r / min). If no, further check whether H 低 =1,H 高 = 0, if yes, it means that the water in the water tank has reached the middle position and does not need to be replenished quickly. At this time, the water pump switches to a lower speed N2 (for example, N2 = 700r / min). If no, further check whether H 低 =0,H 高 =1, if yes, it means one or both of the water level sensors are faulty. After the fault is reported, the compressor stops and exits the self-cleaning function. If no, it means H 低 =1,H 高 =1, the water pump needs to be stopped. When the running time reaches the humidification time t2 (t2 = 5min), the condensation stage ends, the water pump reverses to pump the condensation water in the water tank back to the evaporator water tray as soon as possible, and discharges it through the drain hole to prevent the condensation water from accumulating in the water tank to breed bacteria and then contaminate the filter and return air. The reverse operation time of the water pump is set to t3 (t3 = 2min).

[0069] In summary, through this embodiment, during the condensation stage of self-cleaning, the moisture content in the return air of the indoor unit is increased, the generation of condensed water on the surface of the evaporator is increased, and the self-cleaning effect of the evaporator is improved.

[0070] Fig. 9 2 is a schematic block diagram of a control device 200 for an air conditioner provided in an embodiment of the present invention. Fig. 9 As shown, corresponding to the above air conditioner control method, the present invention also provides an air conditioner control device 200. The air conditioner control device 200 includes a unit for executing the above air conditioner control method, and the device can be configured in a computer device. Fig. 9 The air conditioner control device 200 includes: an acquisition unit 201 and an extraction unit 202.

[0071] Among them, the acquisition unit 201 is used to control the first water level sensor and the second water level sensor to collect water level information after running for a first preset time if the air conditioner enters the condensation stage of the self-cleaning mode; the extraction unit 202 is used to control the pumping component to extract forward or reverse according to the water level information; wherein, the forward extraction is to extract condensed water from the water receiving tray to the water storage tank, and the reverse extraction is to extract condensed water from the water storage tank to the water receiving tray.

[0072] In one embodiment, the extraction unit 202 includes: a first extraction unit, a second extraction unit, an alarm unit, a stop unit and a third extraction unit.

[0073] Among them, the first extraction unit is used to control the pumping component to extract forward at a first extraction speed if both the first water level sensor and the second water level sensor do not collect water level signals; the second extraction unit is used to control the pumping component to extract forward at a second extraction speed if the first water level sensor does not collect water level signals but the second water level sensor collects water level signals, wherein the second extraction speed is less than the first extraction speed; the alarm unit is used to generate water level sensor fault alarm information if the first water level sensor collects water level signals but the second water level sensor does not collect water level signals; the stop unit is used to control the pumping component to stop running if both the first water level sensor and the second water level sensor collect water level signals; the third extraction unit is used to control the pumping component to extract in the reverse direction after the pumping component stops running and the air conditioner runs for a second preset time.

[0074] The control device 200 of the air conditioner can be implemented in the form of a computer program. Fig.10 Runs on the computer device shown.

[0075] See also Fig.10 , Fig.10 5 is a schematic block diagram of a computer device provided in an embodiment of the present application. The computer device 500 may be a terminal.

[0076] See also Fig.10 The computer device 500 includes a processor 502 , a memory and a network interface 505 connected via a system bus 501 , wherein the memory may include a non-volatile storage medium 503 and an internal memory 504 .

[0077] The non-volatile storage medium 503 can store an operating system 5031 and a computer program 5032. The computer program 5032 includes program instructions, and when the program instructions are executed, the processor 502 can execute a method for controlling an air conditioner.

[0078] The processor 502 is used to provide computing and control capabilities to support the operation of the entire computer device 500 .

[0079] The internal memory 504 provides an environment for the operation of the computer program 5032 in the non-volatile storage medium 503. When the computer program 5032 is executed by the processor 502, the processor 502 can execute a method for controlling an air conditioner.

[0080] The network interface 505 is used to communicate with other devices over the network. Fig.10 The structure shown in the figure is merely a block diagram of a portion of the structure related to the solution of the present application, and does not constitute a limitation on the computer device 500 to which the solution of the present application is applied. The specific computer device 500 may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0081] The processor 502 is used to run a computer program 5032 stored in the memory to implement the steps of the above method.

[0082] It should be understood that in the embodiment of the present application, the processor 502 may be a central processing unit (CPU), and the processor 502 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0083] It can be understood by those skilled in the art that all or part of the processes in the method for implementing the above embodiment can be completed by instructing the relevant hardware through a computer program. The computer program includes program instructions, and the computer program can be stored in a storage medium, which is a computer-readable storage medium. The program instructions are executed by at least one processor in the computer system to implement the process steps of the embodiment of the above method.

[0084] Therefore, the present invention also provides a storage medium. The storage medium may be a computer-readable storage medium. The storage medium stores a computer program, wherein the computer program includes program instructions. When the program instructions are executed by a processor, the processor executes the steps of the above method.

[0085] The storage medium may be a USB flash drive, a mobile hard disk, a read-only memory (ROM), a magnetic disk, or an optical disk, etc., which are computer-readable storage media that can store program codes.

[0086] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0087] In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of each unit is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0088] The steps in the method of the embodiment of the present invention can be adjusted in order, combined and deleted according to actual needs. The units in the device of the embodiment of the present invention can be combined, divided and deleted according to actual needs. In addition, the functional units in the various embodiments of the present 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.

[0089] If the integrated unit is implemented in the form of 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 is essentially 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, and the computer software product is stored in a storage medium, including several instructions for a computer device to execute all or part of the steps of the method described in each embodiment of the present invention.

[0090] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0091] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0092] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An indoor unit, characterized in that: include: An air conditioner body, an evaporator, a water receiving tray and a humidifying device, wherein the evaporator is arranged in the air conditioner body, the water receiving tray is arranged below the evaporator to receive condensed water, the air conditioner body is provided with a return air outlet, the humidifying device includes a water absorption filter and a condensation water supply component, the water absorption filter is covered on the return air outlet, and the condensation water supply component is used to moisten the water absorption filter with the condensed water in the water receiving tray.

2. The indoor unit according to claim 1, characterized in that: The condensing water supply component includes a water tank and a pumping component, wherein the pumping component is connected to the water tank and the water receiving pan respectively, and the pumping component is used to pump condensed water into the water tank, and / or to pump condensed water in the water tank into the water receiving pan; wherein the water absorption filter is partially arranged in the water tank to be infiltrated by condensed water.

3. The indoor unit according to claim 2, characterized in that: The condensing water supply assembly further includes a first water level sensor and a second water level sensor. The first water level sensor and the second water level sensor are disposed in the water storage tank, and a height of the first water level sensor is higher than a height of the second water level sensor.

4. The indoor unit according to claim 3, characterized in that: The water storage tank is arranged at one side edge of the return air outlet, and a socket is opened on one side wall of the water storage tank. One side edge of the water absorption filter is inserted into the water storage tank through the socket and hangs down to the bottom of the water storage tank.

5. The indoor unit according to claim 4, characterized in that: The height of the first water level sensor is lower than the height of the socket.

6. The indoor unit according to claim 4, characterized in that: The height of the first water level sensor is H1, H1= ( 8-15 ) ×10 -3 V 空 , where V 空 It is the air volume in the condensation stage.

7. The indoor unit according to claim 2, characterized in that: The pumping assembly includes a water pump, a first water pipe and a second water pipe, one end of the first water pipe is connected to the bottom of the water storage tank, and the other end is connected to the water pump, one end of the second water pipe is connected to the water pump, and the other end is connected to the water receiving tray.

8. A method for controlling an air conditioner, characterized in that: Applied to the indoor unit according to any one of claims 3 to 7, the method comprises: If the air conditioner enters the condensation stage of the self-cleaning mode, after running for a first preset time, the first water level sensor and the second water level sensor are controlled to collect water level information; The pumping component is controlled to pump forward or reverse according to the water level information; wherein the forward pumping is to pump condensed water from the water receiving tray to the water storage tank, and the reverse pumping is to pump condensed water from the water storage tank to the water receiving tray.

9. The method according to claim 8, characterized in that The step of controlling the pumping component to pump forward or reverse according to the water level information comprises: If neither the first water level sensor nor the second water level sensor collects a water level signal, controlling the pumping assembly to pump water in a forward direction at a first pumping speed; If the first water level sensor does not collect a water level signal but the second water level sensor collects a water level signal, the pumping assembly is controlled to pump forward at a second pumping speed, wherein the second pumping speed is less than the first pumping speed; If the first water level sensor collects a water level signal and the second water level sensor does not collect a water level signal, a water level sensor failure alarm message is generated; If the first water level sensor and the second water level sensor both collect water level signals, the pumping component is controlled to stop running; After the pumping assembly stops running and the air conditioner runs for a second preset time, the pumping assembly is controlled to pump in reverse.

10. A control device for an air conditioner, characterized in that: The apparatus comprises means for executing the method of any one of claims 8 to 9 above.

11. A computer device, characterized in that: The computer device comprises a memory and a processor, the memory stores a computer program, and the processor implements the method according to any one of claims 8 to 9 when executing the computer program.

12. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 8 to 9 can be implemented.

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