Air conditioner self-cleaning method and air conditioner

Abstract

This invention provides a self-cleaning method for an air conditioning unit and an air conditioning unit itself. The self-cleaning method for the air conditioning unit includes: acquiring the humidity d of the environment in which the air conditioning unit is located. 环 According to humidity d 环 With preset ambient humidity d 预设环境 The relationship between humidity levels determines the humidity level and triggers the frosting mode; if the environment is low humidity, the system prioritizes the internal humidity of the air conditioning unit. 内 With the first preset internal humidity d 预设内部湿度1 Second preset internal humidity d 预设内部湿度2 and the third preset internal humidity d 预设内部湿度3 The relationship between the two factors determines whether to extend the frosting time or exit the frosting mode; if the environment is high humidity, the evaporator pipe temperature T of the air conditioning unit should be used as the primary factor. 管 With the first preset tube temperature T 预设管温1 Second preset pipe temperature T 预设管温2 The relationship between the two determines whether to extend the frosting time or exit the frosting mode. This invention solves the problem of the inability to accurately control the frosting time in the prior art.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to a self-cleaning method for an air conditioning device and an air conditioning device. Background Technology

[0002] Currently, air conditioning units need to filter dust entering the evaporator through a filter during use. However, after long-term use, a certain amount of dust will accumulate in the evaporator. If it is not cleaned in time, the excessive dust will contaminate the evaporator, which will not only reduce the cooling efficiency of the air conditioning unit, but also affect the cooling effect of the air conditioning unit.

[0003] In related technologies, the self-cleaning mode of air conditioning units cleans the evaporator by condensing condensation into frost and then defrosting and drying it with heat. However, if the frost formation time is insufficient during the self-cleaning process, the self-cleaning will be incomplete or fail; if the frost formation time is too long, the evaporator will freeze, resulting in ice falling off during defrosting, which affects the user experience. Summary of the Invention

[0004] The main objective of this invention is to provide a self-cleaning method and an air conditioning device to solve the problem in the prior art where the duration of frosting cannot be accurately controlled, thus affecting the self-cleaning effect of the air conditioning device.

[0005] To achieve the above objectives, according to one aspect of the present invention, a self-cleaning method for an air conditioning device is provided, comprising: step S1: acquiring the humidity d of the environment in which the air conditioning device is located. 环 Step S2: Based on humidity d 环 With preset ambient humidity d 预设环境 The relationship between the humidity level and the environment determines the humidity level of the air conditioner's surroundings, and it then enters frosting mode; if the environment is low humidity, the system prioritizes the internal humidity level of the air conditioner. 内 With the first preset internal humidity d 预设内部湿度1 Second preset internal humidity d 预设内部湿度2 and the third preset internal humidity d 预设内部湿度3 The relationship between the two factors determines whether to extend the frosting time or exit the frosting mode; if the environment where the air conditioner is located is high humidity, the evaporator pipe temperature T of the air conditioner will be used as the primary factor. 管 With the first preset tube temperature T 预设管温1 Second preset pipe temperature T 预设管温2 The relationship between the two determines whether to extend the frosting time or exit the frosting mode; Step S3: After the air conditioner exits the frosting mode, it enters the drying mode; where the humidity level includes low humidity and high humidity.

[0006] Furthermore, according to humidity d 环 With preset ambient humidity d 预设环境Methods for determining the humidity level of the environment where an air conditioning unit is located based on the relationship between d and d include: 环 <d 预设环境 If d 环 ≥d 预设环境 If the humidity is high, then the environment in which the air conditioning unit is located is determined to be high humidity.

[0007] Furthermore, if the environment where the air conditioning unit is located is in a low humidity environment, based on the internal humidity d of the air conditioning unit... 内 With the first preset internal humidity d 预设内部湿度1 Second preset internal humidity d 预设内部湿度2 and the third preset internal humidity d 预设内部湿度3 When determining whether to extend the frosting time or exit the frosting mode based on the relationship between the air conditioner and the evaporator pipe temperature T, the self-cleaning method of the air conditioner also includes: 管 With the third preset tube temperature T 预设管温3 Fourth preset pipe temperature T 预设管温4 The relationship between the two determines whether to extend the frosting duration or exit the frosting mode.

[0008] Furthermore, when the environment in which the air conditioning unit is located is low humidity, the method for determining whether to extend the frosting time includes: if d 内 ≥d 预设内部湿度1 And T 管 <T 预设管温3 This will prolong the frosting time.

[0009] Furthermore, when the environment in which the air conditioner is located is low humidity, the method for determining whether to exit the frosting mode includes: if d 内 <d 预设内部湿度2 And T 管 <T 预设管温4 Or, d 内 <d 预设内部湿度3 Then exit the frosting mode.

[0010] Furthermore, if the environment where the air conditioning unit is located is high humidity, the evaporator pipe temperature T of the air conditioning unit should be considered. 管 With the first preset tube temperature T 预设管温1 Second preset pipe temperature T 预设管温2 When determining whether to extend the frosting time or exit the frosting mode based on the relationship between the air conditioner and the internal humidity d, the self-cleaning method of the air conditioner also includes: 内 With the fourth preset internal humidity d 预设内部湿度4 Fifth preset internal humidity d 预设内部湿度5 The relationship between the two determines whether to extend the frosting duration or exit the frosting mode.

[0011] Furthermore, when the environment in which the air conditioning unit is located is high humidity, the method for determining whether to extend the frosting time includes: if T管 <T 预设管温1 And d 内 ≥d 预设内部湿度4 This will prolong the frosting time.

[0012] Furthermore, when the air conditioner is located in a high-humidity environment, the method for determining whether to exit the frosting mode includes: if T 管 <T 预设管温1 And d 内 <d 预设内部湿度5 Or, T 管 <T 预设管温2 Then exit the frosting mode.

[0013] Furthermore, in step S3, after the air conditioning unit enters the drying mode, the self-cleaning method of the air conditioning unit further includes: based on the pipe temperature T of the evaporator of the air conditioning unit... 管 With the fifth preset tube temperature T 预设管温5 The relationship between the internal humidity d 内 With the sixth preset internal humidity d 预设内部湿度6 The seventh preset internal humidity d 预设内部湿度7 The eighth preset internal humidity d 预设内部湿度8 The relationship between the two determines whether to extend the drying time or exit the drying mode.

[0014] Furthermore, when the air conditioning unit is in drying mode, the method for determining to extend the drying time includes: if T 管 ≥T 预设管温5 And d 内 ≥d 预设内部湿度6 If so, the drying time will be extended.

[0015] Furthermore, when the air conditioning unit is in drying mode, the method for determining whether to exit drying mode includes: if T 管 ≥T 预设管温5 And d 内 <d 预设内部湿度7 Or, d 内 <d 预设内部湿度8 Then exit the drying mode.

[0016] According to another aspect of the present invention, an air conditioning device is provided that employs the above-described self-cleaning method for air conditioning devices.

[0017] By applying the technical solution of this invention, during the self-cleaning process of the evaporator of the air conditioning unit, the humidity d of the environment in which the air conditioning unit is located is first obtained. 环 Then, based on the humidity d 环 With preset ambient humidity d 预设环境 The relationship between the humidity level and the environment determines the humidity level of the air conditioner's surroundings, and it then enters frosting mode; if the environment is low humidity, the system prioritizes the internal humidity level of the air conditioner. 内With the first preset internal humidity d 预设内部湿度1 Second preset internal humidity d 预设内部湿度2 and the third preset internal humidity d 预设内部湿度3 The relationship between the two factors determines whether to extend the frosting time or exit the frosting mode; if the environment where the air conditioner is located is high humidity, the evaporator pipe temperature T of the air conditioner will be used as the primary factor. 管 With the first preset tube temperature T 预设管温1 Second preset pipe temperature T 预设管温2 The relationship between the two determines whether to extend the frosting time or exit the frosting mode. After the air conditioner exits the frosting mode, it enters the drying mode. This method first determines the humidity of the environment in which the air conditioner is located, and then determines whether to extend the frosting time or exit the frosting mode based on the different humidity levels. This allows for precise control of the frosting time, preventing excessively long frosting times that could lead to evaporator icing or insufficient frosting times that could affect the self-cleaning effect. It solves the problem in existing technologies where the inability to precisely control the frosting time affects the self-cleaning effect of the air conditioner. This ensures sufficient defrosting water to flush the evaporator during the self-cleaning defrosting stage, effectively removing dust and impurities from the evaporator, resulting in better self-cleaning and preventing performance issues caused by incomplete evaporator cleaning. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 A flowchart of an embodiment of the self-cleaning method for an air conditioning device according to the present invention is shown. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0021] In this invention, unless otherwise stated, directional terms such as "up" and "down" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally used in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0022] To address the problem in existing technologies where the duration of frosting cannot be precisely controlled, thus affecting the self-cleaning effect of air conditioning units, this application provides a self-cleaning method and an air conditioning unit.

[0023] like Figure 1 As shown, the self-cleaning method of the air conditioning unit includes: Step S1: Obtain the humidity d of the environment where the air conditioning unit is located. 环 ; Step S2: Based on humidity d 环 With preset ambient humidity d 预设环境 The relationship between the air conditioner and the surrounding environment determines the humidity level and triggers the defrosting mode. If the environment where the air conditioner is located is in a low humidity environment, then the internal humidity level of the air conditioner should be prioritized. 内 With the first preset internal humidity d 预设内部湿度1 Second preset internal humidity d 预设内部湿度2 and the third preset internal humidity d 预设内部湿度3 The relationship between the two determines whether to extend the frosting duration or exit the frosting mode; If the environment where the air conditioning unit is located is in a high humidity environment, the evaporator pipe temperature T of the air conditioning unit should be used as the primary factor. 管 With the first preset tube temperature T 预设管温1 Second preset pipe temperature T 预设管温2 The relationship between the two determines whether to extend the frosting duration or exit the frosting mode; Step S3: After the air conditioner exits the frosting mode, it enters the drying mode. The humidity level includes low humidity and high humidity.

[0024] By applying the technical solution of this embodiment, the humidity of the environment where the air conditioning unit is located is first determined, and then it is determined whether to extend the frosting time or exit the frosting mode based on different humidity conditions. This allows for precise control of the frosting time, preventing the evaporator from freezing due to excessive frosting time or the self-cleaning effect from being affected by excessively short frosting time. This solves the problem in the prior art where the frosting time cannot be precisely controlled, thus affecting the self-cleaning effect of the air conditioning unit. It ensures that there is enough defrosting water to rinse the evaporator during the self-cleaning defrosting stage, effectively removing dust and impurities from the evaporator, resulting in a better self-cleaning effect and avoiding the impact on the performance of the air conditioner due to incomplete evaporator cleaning.

[0025] In this embodiment, the tube temperature T is used to measure the temperature of the tube. 管 The internal humidity of the air conditioning unit 内 The change in the self-cleaning mode controls the frosting time, ensuring that the frost layer is thick enough while exiting the frosting mode in time to prevent excessive frosting or even freezing. This ensures that there is enough defrosting water to flush the evaporator in the defrosting mode, and to remove the dust on the evaporator more thoroughly.

[0026] In this embodiment, based on humidity d 环 With preset ambient humidity d 预设环境 Methods for determining the humidity level of the environment in which an air conditioning unit is located include: If d 环 <d 预设环境 If the humidity is low, then the environment in which the air conditioning unit is located is determined to be low. If d 环 ≥d 预设环境 If the humidity is high, then the environment in which the air conditioning unit is located is determined to be high humidity.

[0027] Specifically, in d 环 <d 预设环境 If the humidity level is low, the air conditioner is considered to be in a low-humidity environment and enters the condensation / frost stage. Because the air contains less water vapor in low-humidity environments, even if the evaporator tube temperature is low enough, less condensate will form on the evaporator surface, and a thick frost layer is less likely to form. Therefore, in low-humidity environments, the internal humidity d of the air conditioner is determined... 内 The priority is higher than determining the tube temperature T of the evaporator. 管 The priority is set so that a sufficiently thick layer of cream is produced in self-cleaning mode.

[0028] Specifically, in d 环 ≥d 预设环境 If the humidity level is high, the air conditioning unit is considered to be in a high-humidity environment and has entered the condensation / frost stage. Because of the high water vapor content in the air, the evaporator pipe temperature decreases, resulting in a large amount of condensate forming on the evaporator surface and making it easier to build a sufficiently thick frost layer. Therefore, in a high-humidity environment, the evaporator pipe temperature T is used to determine the humidity level. 管 The priority is higher than determining the internal humidity of the air conditioning unit. 内 Prioritize this to prevent freezing.

[0029] In this embodiment, if the environment where the air conditioning unit is located is in a low humidity environment, the humidity d of the air conditioning unit will be adjusted accordingly. 内 With the first preset internal humidity d 预设内部湿度1 Second preset internal humidity d 预设内部湿度2 and the third preset internal humidity d 预设内部湿度3 When determining whether to extend the frosting duration or exit the frosting mode based on the relationship between the air conditioning unit and the defrosting mechanism, the self-cleaning method of the air conditioning unit also includes: Based on the evaporator pipe temperature T of the air conditioning unit 管 With the third preset tube temperature T 预设管温3 Fourth preset pipe temperature T 预设管温4 The relationship between the two determines whether to extend the frosting duration or exit the frosting mode.

[0030] Specifically, when the environment in which the air conditioning unit is located is in a low humidity state, priority should be given to considering the internal humidity d of the air conditioning unit.内 With the first preset internal humidity d 预设内部湿度1 Second preset internal humidity d 预设内部湿度2 and the third preset internal humidity d 预设内部湿度2 The relationship between the two factors determines whether to extend the frosting time or exit the frosting mode, and then the evaporator pipe temperature T of the air conditioning unit is considered. 管 With the third preset tube temperature T 预设管温3 Fourth preset pipe temperature T 预设管温4 The relationship between the two determines whether to extend the frosting duration or exit the frosting mode.

[0031] In this embodiment, when the environment in which the air conditioning unit is located is low humidity, the method for determining whether to extend the frosting time includes: if d 内 ≥d 预设内部湿度1 And T 管 <T 预设管温3 This will prolong the frosting time.

[0032] Specifically, in d 内 ≥d 预设内部湿度1 And T 管 <T 预设管温3 When the humidity level is d, it indicates that the internal humidity of the air conditioning unit is currently at that time. 内 The evaporator tube temperature T has not yet decreased. 管 If the temperature is not low enough, the evaporator will frost less, requiring a longer frosting time.

[0033] In this embodiment, when the environment in which the air conditioner is located is low humidity, the method for determining to exit the frosting mode includes: if d 内 <d 预设内部湿度2 And T 管 <T 预设管温4 Or, d 内 <d 预设内部湿度3 Then exit the frosting mode.

[0034] Specifically, if d 内 <d 预设内部湿度2 And T 管 <T 预设管温4 This indicates that the evaporator pipe temperature is already low enough, and the internal humidity of the air conditioning unit has also decreased, resulting in a thick frost layer. To prevent freezing, the evaporator pipe temperature cannot be lowered further, and the frosting mode can be exited. If d 内 <d 预设内部湿度3 This indicates that the internal humidity of the air conditioning unit has decreased significantly and the frost layer is thick enough. Regardless of the evaporator pipe temperature, the frosting mode should be exited to prevent freezing.

[0035] In this embodiment, if the environment where the air conditioning unit is located is high humidity, the temperature T of the evaporator of the air conditioning unit will be used as the basis for the adjustment. 管 With the first preset tube temperature T预设管温1 Second preset pipe temperature T 预设管温2 When determining whether to extend the frosting duration or exit the frosting mode based on the relationship between the air conditioning unit and the defrosting mechanism, the self-cleaning method of the air conditioning unit also includes: According to the internal humidity of the air conditioning unit d 内 With the fourth preset internal humidity d 预设内部湿度4 Fifth preset internal humidity d 预设内部湿度5 The relationship between the two determines whether to extend the frosting duration or exit the frosting mode.

[0036] Specifically, when the environment in which the air conditioning unit is located is high humidity, the evaporator pipe temperature T of the air conditioning unit should be prioritized. 管 With the first preset tube temperature T 预设管温1 Second preset pipe temperature T 预设管温2 The relationship between the two factors determines whether to extend the frosting time or exit the frosting mode, and then the internal humidity of the air conditioner is considered. 内 With the fourth preset internal humidity d 预设内部湿度4 Fifth preset internal humidity d 预设内部湿度5 The relationship between the two determines whether to extend the frosting duration or exit the frosting mode.

[0037] In this embodiment, when the environment in which the air conditioning unit is located is high humidity, the method for determining whether to extend the frosting time includes: if T 管 <T 预设管温1 And d 内 ≥d 预设内部湿度4 This will prolong the frosting time.

[0038] Specifically, if T 管 <T 预设管温1 And d 内 ≥d 预设内部湿度4 If the temperature drop is small, it means that the evaporator pipe temperature drops little and the internal humidity of the air conditioning unit drops little, resulting in less frost on the evaporator. Therefore, it is necessary to extend the frost-forming time.

[0039] In this embodiment, when the environment in which the air conditioning unit is located is high humidity, the method for determining to exit the frosting mode includes: if T 管 <T 预设管温1 And d 内 <d 预设内部湿度5 Or, T 管 <T 预设管温2 Then exit the frosting mode.

[0040] Specifically, if T 管 <T 预设管温1 And d 内 <d 预设内部湿度5 This indicates that the internal humidity of the air conditioner has decreased to a certain extent, resulting in a relatively thick frost layer. To prevent icing, the frosting mode can be discontinued. If T管 <T 预设管温2 This indicates that as the frost layer gradually thickens, the pipe temperature has become low enough, and the frosting mode needs to be exited to prevent freezing.

[0041] In this embodiment, in step S3, after the air conditioner enters the drying mode, the self-cleaning method of the air conditioner further includes: based on the pipe temperature T of the evaporator of the air conditioner. 管 With the fifth preset tube temperature T 预设管温5 The relationship between the internal humidity d 内 With the sixth preset internal humidity d 预设内部湿度6 The seventh preset internal humidity d 预设内部湿度7 The eighth preset internal humidity d 预设内部湿度8 The relationship between the two determines whether to extend the drying time or exit the drying mode.

[0042] Specifically, the drying mode is determined by the evaporator tube temperature T. 管 The system determines whether to exit the drying mode based on changes in the internal humidity of the air conditioning unit. Once the surface moisture of the evaporator is dried, the drying mode should be exited promptly to prevent the evaporator surface from overheating, which could lead to excessively high condensing pressure and even affect the operational reliability of the air conditioning unit.

[0043] In this embodiment, when the air conditioning unit is in drying mode, the method for determining to extend the drying time includes: if T 管 ≥T 预设管温5 And d 内 ≥d 预设内部湿度6 If so, the drying time will be extended.

[0044] Specifically, if T 管 ≥T 预设管温5 And d 内 ≥d 预设内部湿度6 This indicates that the evaporator tube temperature is not high at this time, the internal humidity of the air conditioning unit also changes very little, and there is still a lot of moisture on the surface of the evaporator, so the drying time needs to be extended.

[0045] In this embodiment, the method for determining whether to exit the drying mode when the air conditioning unit is in drying mode includes: if T 管 ≥T 预设管温5 And d 内 <d 预设内部湿度7 Or, d 内 <d 预设内部湿度8 Then exit the drying mode.

[0046] Specifically, if T 管 ≥T 预设管温5 And d 内 <d 预设内部湿度7This indicates that the internal humidity of the air conditioning unit has decreased significantly. Although the moisture has not completely evaporated, the drying mode can be exited, and the residual heat of the evaporator can continue to evaporate the moisture, reducing energy consumption during the drying stage. If d 内 <d 预设内部湿度8 If the humidity inside the air conditioner is low, the evaporator surface is dry or has only a small amount of moisture, and the drying mode can be exited to avoid prolonged overheating and reduce energy consumption during the drying stage.

[0047] This application also provides an air conditioning device (not shown) that employs the above-described self-cleaning method for air conditioning devices.

[0048] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects: During the self-cleaning process of the evaporator of the air conditioning unit, the humidity d of the environment in which the air conditioning unit is located is first obtained. 环 Then, based on the humidity d 环 With preset ambient humidity d 预设环境 The relationship between the humidity level and the environment determines the humidity level of the air conditioner's surroundings, and it then enters frosting mode; if the environment is low humidity, the system prioritizes the internal humidity level of the air conditioner. 内 With the first preset internal humidity d 预设内部湿度1 Second preset internal humidity d 预设内部湿度2 and the third preset internal humidity d 预设内部湿度3 The relationship between the two factors determines whether to extend the frosting time or exit the frosting mode; if the environment where the air conditioner is located is high humidity, the evaporator pipe temperature T of the air conditioner will be used as the primary factor. 管 With the first preset tube temperature T 预设管温1 Second preset pipe temperature T 预设管温2 The relationship between the two determines whether to extend the frosting time or exit the frosting mode. After the air conditioner exits the frosting mode, it enters the drying mode. This method first determines the humidity of the environment in which the air conditioner is located, and then determines whether to extend the frosting time or exit the frosting mode based on the different humidity levels. This allows for precise control of the frosting time, preventing excessively long frosting times that could lead to evaporator icing or insufficient frosting times that could affect the self-cleaning effect. It solves the problem in existing technologies where the inability to precisely control the frosting time affects the self-cleaning effect of the air conditioner. This ensures sufficient defrosting water to flush the evaporator during the self-cleaning defrosting stage, effectively removing dust and impurities from the evaporator, resulting in better self-cleaning and preventing performance issues caused by incomplete evaporator cleaning.

[0049] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0050] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0051] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A self-cleaning method for an air conditioning unit, characterized in that, include: Step S1: acquiring humidity d of environment where air conditioning device is located 环 ; Step S2: determining the humidity degree of the environment where the air conditioning device is located according to the relationship between the humidity d 环 and the preset environment humidity d 预设环境 and entering the frosting mode. If the environment in which the air conditioning unit is located is in a low humidity environment, then the internal humidity d of the air conditioning unit shall be used as the primary criterion. 内 With the first preset internal humidity d 预设内部湿度1 Second preset internal humidity d 预设内部湿度2 and the third preset internal humidity d 预设内部湿度3 The relationship between the two determines whether to extend the frosting duration or exit the frosting mode; If the environment in which the air conditioning unit is located is high humidity, then the evaporator tube temperature T of the air conditioning unit should be used as the primary criterion. 管 With the first preset tube temperature T 预设管温1 Second preset pipe temperature T 预设管温2 The relationship between the two determines whether to extend the frosting duration or exit the frosting mode; Step S3: After the air conditioning unit exits the frosting mode, it enters the drying mode; The humidity level includes low humidity and high humidity; According to the humidity d 环 With preset ambient humidity d 预设环境 The methods for determining the humidity level of the environment in which the air conditioning unit is located based on the relationship between the two include: If d 环 <d 预设环境 If the environment in which the air conditioning unit is located is low humidity, then it is determined that the environment is low humidity. If d 环 ≥d 预设环境 If the environment in which the air conditioning unit is located is determined to be high humidity; When the environment in which the air conditioning unit is located is low humidity, the method for determining whether to extend the frosting time includes: If d 内 ≥d 预设内部湿度1 And T 管 <T 预设管温3 This will prolong the frosting time; When the environment in which the air conditioning unit is located is low humidity, the methods for determining to exit the frosting mode include: If d 内 <d 预设内部湿度2 And T 管 <T 预设管温4 Or, d 内 <d 预设内部湿度3 Then exit the frosting mode; When the environment in which the air conditioning unit is located is high humidity, the method for determining whether to extend the frosting time includes: If T 管 <T 预设管温1 And d 内 ≥d 预设内部湿度4 This will prolong the frosting time; When the environment in which the air conditioning unit is located is high humidity, the method for determining to exit the frosting mode includes: If T 管 <T 预设管温1 And d 内 <d 预设内部湿度5 Or, T 管 <T 预设管温2 Then exit the frosting mode; Wherein, d satisfies: 预设内部湿度1 >d 预设内部湿度2 >d 预设内部湿度3 T 预设管温1 >T 预设管温2 .

2. The self-cleaning method for an air conditioning unit according to claim 1, characterized in that, If the environment in which the air conditioning unit is located is low humidity, then based on the internal humidity d of the air conditioning unit... 内 With the first preset internal humidity d 预设内部湿度1 Second preset internal humidity d 预设内部湿度2 and the third preset internal humidity d 预设内部湿度3 When determining whether to extend the frosting duration or exit the frosting mode based on the relationship between the air conditioner and the weather unit, the self-cleaning method further includes: Based on the evaporator pipe temperature T of the air conditioning unit 管 With the third preset tube temperature T 预设管温3 Fourth preset pipe temperature T 预设管温4 The relationship between the two determines whether to extend the frosting duration or exit the frosting mode.

3. The self-cleaning method for an air conditioning unit according to claim 1, characterized in that, If the environment in which the air conditioning unit is located is high humidity, then based on the evaporator tube temperature T of the air conditioning unit... 管 With the first preset tube temperature T 预设管温1 Second preset pipe temperature T 预设管温2 When determining whether to extend the frosting duration or exit the frosting mode based on the relationship between the air conditioner and the weather unit, the self-cleaning method further includes: According to the internal humidity of the air conditioning unit d 内 With the fourth preset internal humidity d 预设内部湿度4 Fifth preset internal humidity d 预设内部湿度5 The relationship between the two determines whether to extend the frosting duration or exit the frosting mode.

4. The self-cleaning method for an air conditioning unit according to claim 1, characterized in that, In step S3, after the air conditioner enters the drying mode, the self-cleaning method of the air conditioner further includes: According to the pipe temperature T of the evaporator of the air conditioning unit 管 With the fifth preset tube temperature T 预设管温5 The relationship between the internal humidity d 内 With the sixth preset internal humidity d 预设内部湿度6 The seventh preset internal humidity d 预设内部湿度7 The eighth preset internal humidity d 预设内部湿度8 The relationship between the two determines whether to extend the drying time or exit the drying mode.

5. The self-cleaning method for an air conditioning unit according to claim 1, characterized in that, When the air conditioning unit is in the drying mode, the method for determining to extend the drying time includes: If T 管 ≥T 预设管温5 And d 内 ≥d 预设内部湿度6 If so, the drying time will be extended.

6. The self-cleaning method for an air conditioning unit according to claim 1, characterized in that, When the air conditioning unit is in the drying mode, the method for determining whether to exit the drying mode includes: If T 管 ≥T 预设管温5 And d 内 <d 预设内部湿度7 Or, d 内 <d 预设内部湿度8 Then exit the drying mode.

7. An air conditioning device, characterized in that, The self-cleaning method of the air conditioning unit according to any one of claims 1 to 6 is adopted.

Images