A household appliance, an air purification control method and an air purification control device

Abstract

The application relates to a household appliance, an air purification control method and a control device. The household appliance comprises an appliance body, a suction accessory and an electric conductivity detection device. The suction accessory is used for adsorbing condensed water generated by refrigeration of the appliance body. The electric conductivity detection device is arranged on the appliance body and is electrically connected with the suction accessory for detecting real-time electric conductivity of the condensed water. The electric conductivity detection device selects one of an air purification mode and a normal working mode according to a comparison result between the real-time electric conductivity and a preset electric conductivity range. The suction accessory and the electric conductivity detection device can detect the electric conductivity of the condensed water in real time, can reflect air quality in real time, are accurate in data, and are beneficial to improving user experience. The electric conductivity of the condensed water is detected in real time, air quality is detected in real time, and the air purification mode or the normal working mode is selected according to the air quality to keep the air quality good.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a household appliance, an air purification control method, and an air purification control device. Background Technology

[0002] With the improvement of people's living standards and the impact of the epidemic, people are paying more and more attention to indoor air quality. Many existing household appliances are equipped with air quality detection devices to work with sterilization, deodorization and other technologies to achieve air purification functions, such as air conditioners.

[0003] Currently, the air quality detection devices used in these household appliances are classified into conductivity type, optical type, thermal type, humidity type, and gas type according to their operating principles. However, the metal oxides on these types of air quality detection devices are easily oxidized by the air, and silicon-based materials are also prone to deterioration, leading to the gradual failure of the detection devices and a shortened lifespan. In addition, air quality detection devices usually require preheating, and the detection process takes a certain amount of time, resulting in a certain lag in the displayed readings, and they cannot display the indoor air quality in real time. Summary of the Invention

[0004] Therefore, it is necessary to provide a control method and air purification control device for home appliances and air purification to obtain indoor air quality in real time and accurately.

[0005] A household appliance, comprising an air purification mode and a normal operating mode, and including:

[0006] Electrical appliance body;

[0007] Adsorption element, used to adsorb condensate generated by the refrigeration of the electrical appliance body;

[0008] A conductivity detection device is installed on the electrical body and electrically connected to the adsorption element for detecting the real-time conductivity of condensate.

[0009] The conductivity detection device selects either the air purification mode or the normal operation mode based on the comparison result between the real-time conductivity and the preset conductivity range.

[0010] In one embodiment, the conductivity detection device includes a conductive element, a conductivity detector, and a controller. The conductive element is electrically connected between the adsorption element and the conductivity detector. The conductivity detector is used to obtain the real-time conductivity of the condensate. When the real-time conductivity is greater than the maximum threshold of the preset conductivity, the controller controls the air purification mode of the household appliance to be turned on.

[0011] Furthermore, when the controller is in the air purification mode and the real-time conductivity is less than the minimum threshold of the preset conductivity, the normal operation mode of the household appliance is activated.

[0012] In one embodiment, the electrical appliance body includes an electrical component capable of collecting condensate, and the adsorption element is a conductive polymer coating applied to the electrical component, wherein the conductive polymer coating has a multi-microporous structure on its surface.

[0013] In one embodiment, the conductive element includes a first electrode and a second electrode, which are electrically connected to opposite sides of the conductive polymer coating along the thickness direction.

[0014] In one embodiment, the household appliance is an air conditioner.

[0015] In one embodiment, the air conditioner body includes an evaporator, and the adsorption element is a conductive polymer coating applied to the evaporator.

[0016] An air purification control method, the control method comprising:

[0017] Real-time acquisition of the actual conductivity of condensate produced by household appliances;

[0018] Based on the actual conductivity, determine whether to activate the air purification mode.

[0019] In one embodiment, the step of determining whether to activate the air purification mode based on the actual conductivity includes:

[0020] When the actual conductivity is greater than the first preset conductivity, the household appliance is controlled to enter the air purification mode.

[0021] In one embodiment, the step of controlling the household appliance to enter air purification mode when the actual conductivity is greater than a first preset conductivity includes:

[0022] When the air purification mode is executed, the step of obtaining the actual conductivity of the generated condensate in real time is returned, and when the actual conductivity is less than the second preset conductivity, the household appliance is controlled to be in normal working mode.

[0023] Wherein, the first preset conductivity is greater than the second preset conductivity.

[0024] In one embodiment, the control method further includes:

[0025] When performing air purification, return to the step of obtaining the actual conductivity of the generated condensate in real time, and when the actual conductivity is not less than the second preset conductivity, control the household appliance to be in air purification mode.

[0026] In one embodiment, the control method further includes:

[0027] If the actual conductivity is determined to be no greater than the first preset conductivity, the household appliance is controlled to be in normal working mode.

[0028] An air purification control device, the air purification control device comprising:

[0029] The acquisition unit is used to acquire the actual conductivity of the condensate produced by household appliances.

[0030] The control unit is used to determine whether to activate the air purification mode of the household appliance based on the obtained actual conductivity.

[0031] In one embodiment, the control unit controls the household appliance to enter air purification mode when the actual conductivity is greater than a first preset conductivity.

[0032] When the air purification mode is executed, if the actual conductivity is less than the second preset conductivity, the household appliance is controlled to be in normal working mode; and if the actual conductivity is not less than the second preset conductivity, the household appliance is controlled to be in air purification mode.

[0033] Wherein, the first preset conductivity is greater than the second preset conductivity.

[0034] In one embodiment, the control unit determines that the actual conductivity is not greater than the first preset conductivity and controls the household appliance to be in normal working mode.

[0035] The aforementioned household appliances, air purification control methods, and control devices, through adsorption components and conductivity detection devices, can reflect air quality in real time by detecting the conductivity of condensate water. The data is accurate and helps improve the user experience. Furthermore, by detecting the conductivity of condensate water in real time, air quality can be detected in real time, and the system can further select between an air purification mode and a normal working mode based on the air quality to maintain good air quality. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the assembly structure of the adsorption component and conductivity detection device in a household appliance as described in one or more embodiments of this application.

[0037] Figure 2 for Figure 1The diagram shows the assembly structure of the adsorption component and the conductive component in the conductivity detection device of the household appliance.

[0038] Figure 3 for Figure 1 The diagram shows a flow chart of a control method for air purification in a household appliance in one embodiment.

[0039] Figure 4 for Figure 1 The diagram shows a flow chart of a control method for air purification of a household appliance in another embodiment.

[0040] Figure 5 for Figure 1 The diagram shows a flow chart of the control method for air purification of the household appliance in another embodiment.

[0041] Figure 6 for Figure 1 The diagram shows a flow chart of the control method for air purification of the household appliance in another embodiment.

[0042] Figure 7 for Figure 1 The diagram shows the structure of the air purification control device for a household appliance. Attached image description:

[0044] Adsorption element 11; Multi-microporous structure 111; Conductivity detection device 12; Conductive element 121; First electrode 1211; Second electrode 1212; Conductivity detector 122; Evaporator 13; Air purification control device 200; Acquisition unit 21; Control unit 22. Detailed Implementation

[0045] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0046] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0047] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0051] In related technologies, different types of water have different electrical conductivity. Clean distilled water or drinking water has a conductivity of about 5-50 μS / cm. After being stored for a period of time, distilled water or drinking water absorbs soluble gases such as carbon dioxide, sulfur dioxide, and ammonia from the air, and its conductivity rises to 100-200 μS / cm. In other words, impurities in the air dissolve into the water and change its conductivity. The higher the conductivity of the water, the more impurities it contains in the air, meaning the worse the air quality; the lower the conductivity of the water, the fewer impurities it contains in the air, meaning the better the air quality.

[0052] The condensate produced by household appliances is formed by the accumulation of water vapor in the air, and impurities in the air are incorporated into the condensate during the accumulation process. Therefore, this application embodiment assesses air quality by detecting the conductivity of the condensate.

[0053] The specific type of household appliance is not limited, such as air conditioners, humidifiers, etc. In this application, air conditioners are used as an example of household appliances.

[0054] Please see Figure 1 and Figure 2 One embodiment of this application provides a household appliance with an air purification mode and a normal working mode, and the household appliance includes an appliance body, an adsorption element 11 and a conductivity detection device 12.

[0055] The adsorption element 11 is used to adsorb the condensate produced by the refrigeration of household appliances; the conductivity detection device 12 is installed on the appliance body and electrically connected to the adsorption element 11 to detect the real-time conductivity of the condensate.

[0056] It is understood that the adsorption element 11 is a conductive material electrically connected to the conductivity detection device 12. After adsorbing condensate, the adsorption element 11 is connected to the conductivity detection device 12, and the real-time conductivity of the condensate is detected. Based on the obtained real-time conductivity value, the water quality of the condensate can be assessed, thereby reflecting the air quality. Thus, the adsorption element 11 and conductivity detection device provided in this embodiment can reflect the air quality in real time by detecting the conductivity of the condensate, providing accurate data and improving the user experience.

[0057] The conductivity detection device 12 selects either the air purification mode or the normal operation mode based on the comparison result between the real-time conductivity and the preset conductivity range.

[0058] It is understood that the preset conductivity range refers to the conductivity range of condensate produced by household appliances under normal air quality conditions. For example, under normal air quality conditions, the conductivity of condensate produced by the evaporator is approximately 50–500 μS / cm. By comparing the real-time conductivity with the preset conductivity range, the real-time air quality can be assessed, thereby selecting the operating mode of the household appliance. Specifically, when the real-time conductivity exceeds the maximum threshold of the preset conductivity range, the air quality is poor, and the air purification mode needs to be run to purify the air and optimize air quality; when the real-time conductivity is less than or equal to the maximum threshold of the preset conductivity range, the air quality is normal, and the normal operating mode needs to be run. Thus, the household appliance provided in this embodiment can achieve real-time air quality detection by monitoring the conductivity of condensate, and can further select between an air purification mode or a normal operating mode based on the air quality to maintain good air quality.

[0059] It should be noted that when a household appliance is in air purification mode, it can purify impurities in the air to improve air quality, thereby reducing the impurity content in the condensate and lowering the conductivity of the condensate. When a household appliance is in normal working mode, it refers to other modes after the air purification mode has been stopped, such as the heating mode, cooling mode, and dehumidification mode of an air conditioner. In these modes, the household appliance does not have the function of purifying the air.

[0060] In some embodiments, please refer to Figure 1 and Figure 2 The electrical appliance body includes electrical components capable of collecting condensate. An adsorption element 11 is installed on the electrical components so that the adsorption element 11 can adsorb condensate.

[0061] The specific material of the adsorption element 11 is not limited. See some embodiments for details. Figure 1 and Figure 2The adsorbent 11 is a conductive polymer, for example, the adsorbent 11 is a composite material formed by combining materials such as polyethylene, polypropylene, polystyrene, epoxy resin, phenolic resin and fillers such as carbon black, carbon nanotubes, graphene.

[0062] The specific form of the adsorption element 11 is not limited. For some embodiments, please refer to... Figure 1 and Figure 2 The adsorption element 11 is a conductive polymer coating applied to the electrical component, and the conductive polymer coating has a multi-microporous structure 111 on its surface.

[0063] It is understandable that when the conductive polymer is coated on electrical components, it will stretch to form a multi-microporous structure 111. The multi-microporous structure 111 can be used to adsorb condensate, and the condensate is contained inside the multi-microporous structure 111, so that the conductivity detector 122 can detect the conductivity of the condensate more accurately, and thus more accurately reflect the air quality.

[0064] The specific design of the electrical component capable of collecting condensate is not limited. For some embodiments, please refer to... Figure 1 and Figure 2 Taking an air conditioner as an example, the electrical body of the air conditioner includes an evaporator 13, and the adsorption component 11 is a conductive polymer coating applied to the evaporator 13.

[0065] It is understandable that air conditioners typically use the evaporator 13 to cool the air to achieve a cooling effect. Therefore, the temperature difference in the evaporator 13 and its vicinity is relatively large, making it easier for condensate to accumulate. Thus, the adsorption element 11 installed on the evaporator 13 is beneficial for the adsorption element 11 to adsorb condensate, thereby facilitating conductivity testing.

[0066] In some embodiments, please refer to Figure 1 and Figure 2 The household appliance also includes a display, which is mounted on the outside of the appliance and connected to the conductivity detection device 12. The display shows the air quality obtained by the conductivity detection device 12. During the actual operation of the household appliance, the conductivity detection device 12 detects the real-time conductivity of the condensate and further evaluates and obtains the real-time air quality. The display can be connected to the conductivity detection device 12 and display the real-time air quality, making it convenient for users to understand the real-time air quality situation. The data is accurate and helps to improve the user experience.

[0067] In some embodiments, please refer to Figure 1 and Figure 2 The conductivity detection device 12 includes a conductive element 121, a conductivity detector 122, and a controller.

[0068] The conductive element 121 is electrically connected between the adsorption element 11 and the conductivity detector 122, which is used to obtain the real-time conductivity of the condensate. The conductive element 121 can conduct the current between the adsorption element 11 and the conductivity detector 122, thereby enabling the conductivity detector 122 to detect the conductivity of the condensate adsorbed on the adsorption element 11.

[0069] When the real-time conductivity is greater than the preset maximum conductivity threshold, the controller activates the air purification mode of the household appliance; and when the controller is still in air purification mode and the real-time conductivity is less than the preset minimum conductivity threshold, the controller activates the normal operation mode of the household appliance.

[0070] Understandably, when the real-time conductivity is greater than the preset maximum conductivity threshold, the air quality is poor, and the air purification mode of the home appliance needs to be turned on through the controller to purify the air and optimize the air quality. When the air purification mode is active and the real-time conductivity is less than the preset minimum conductivity threshold, it means that the air quality has been purified to achieve a better effect. At this time, the air quality is good, and the normal working mode of the home appliance needs to be turned on through the controller, that is, the air purification mode is turned off, in order to save operating costs.

[0071] In some embodiments, please refer to Figure 1 and Figure 2 The conductive component 121 includes a first electrode 12 and a second electrode 1211, which are electrically connected to opposite sides of the conductive polymer coating on the electrical component along the thickness direction.

[0072] It is understood that the adsorbent 11 is a conductive polymer coating, and the multi-microporous structure 111 formed by the adsorbent 11 extends along its thickness direction, enabling it to adsorb and contain condensate. Therefore, connecting the first electrode 12 and the second electrode 1211 to opposite sides of the conductive polymer coating along its thickness direction better facilitates current flow between the adsorbent 11 and the conductive element 121, and is beneficial for accurately testing the conductivity of the condensate.

[0073] Please see Figure 3 In another aspect, this application provides an air purification control method, which includes steps S100 and S200.

[0074] S100: Real-time acquisition of the actual conductivity of condensate produced by household appliances.

[0075] The conductivity of condensate water is positively correlated with the amount of impurities it contains. Since condensate water is formed from water vapor and impurities in the air, the amount of impurities in the condensate water reflects the air quality. Specifically, the higher the conductivity of the condensate water, the more impurities it contains, and the worse the air quality; conversely, the lower the conductivity of the condensate water, the fewer impurities it contains, and the better the air quality.

[0076] S200: Determines whether to activate the air purification mode based on the actual conductivity.

[0077] Understandably, the air quality is judged based on the actual conductivity of the condensate water obtained in real time. When the actual conductivity value is higher than the normal value, the air quality is poor and the air purification mode needs to be turned on to purify the air and optimize the air quality. When the actual conductivity value is not higher than the normal value, the air quality is at a normal level and the air purification mode does not need to be turned on, that is, the air conditioner is in normal working mode.

[0078] In some embodiments, please refer to Figure 4 The step of determining whether to activate the air purification mode based on the actual conductivity includes step S300.

[0079] S300: When the actual conductivity is greater than the first preset conductivity, control the household appliances to enter air purification mode.

[0080] Understandably, the conductivity of condensate produced by household appliances under normal air quality conditions has a certain preset range, with a maximum and a minimum threshold. When the conductivity of the condensate is higher than the maximum threshold, it indicates that the current air quality is worse than normal, requiring the household appliances to be switched to air purification mode to purify the air and optimize air quality. When the conductivity of the condensate is lower than the maximum threshold, it indicates that the current air quality is comparable to or better than normal, therefore, the first preset conductivity should be equal to the maximum threshold.

[0081] Specifically, in the embodiment of this application where a household appliance is used as an air conditioner, under normal air quality conditions, the conductivity of the condensate produced by the air conditioner is approximately 50–500 μS / cm. Therefore, the first preset conductivity value is 500 μS / cm.

[0082] It should be noted that the specific value of the first preset conductivity is not limited, and the value of the first preset conductivity is equal to the value of the maximum threshold of the preset range. The values ​​of the maximum and minimum thresholds of the preset range are related to various factors such as the type of household appliance and air quality. Moreover, the maximum and minimum thresholds of the preset range are obtained through experimental testing. The parameters and procedures related to the experimental testing of the maximum and minimum thresholds of the preset range are conventional techniques for those skilled in the art and will not be elaborated here.

[0083] In some embodiments, please refer to Figure 5 When the actual conductivity is greater than the first preset conductivity, the step of controlling the household appliance to be in air purification mode includes step S400.

[0084] S400: When executing the air purification mode, return to the step of obtaining the actual conductivity of the condensate water generated in real time, and when the actual conductivity is less than the second preset conductivity, control the household appliances to be in normal working mode.

[0085] The first preset conductivity is greater than the second preset conductivity.

[0086] Understandably, after air purification, air quality is optimized, and the conductivity of condensate produced by household appliances decreases accordingly. When the conductivity of the condensate produced after air purification drops below the maximum threshold of a preset range, air purification can be stopped, and the household appliances can be switched to normal air mode. Preferably, the second preset conductivity should be the midpoint between the maximum and minimum thresholds of the preset range. Thus, when the second conductivity equals the midpoint, the existing air quality is good and can be maintained at a normal air quality level for a certain period, which also helps save on the operating costs of household appliances.

[0087] Specifically, in the embodiment of this application where a household appliance is used as an air conditioner, under normal air quality conditions, the conductivity of the condensate produced by the air conditioner is approximately 50 to 500 uS / cm. Therefore, the second preset conductivity value is 200 uS / cm.

[0088] It should be noted that the specific value of the second preset conductivity is not limited, and the value of the second preset conductivity is equal to the value of the midpoint of the preset range. The value of the midpoint of the preset range is related to various factors such as the type of household appliance and air quality, and the midpoint of the preset range is obtained through experimental testing. The parameters and procedures related to the experimental testing of the midpoint of the preset range are conventional techniques for those skilled in the art and will not be elaborated here.

[0089] In some embodiments, please refer to Figure 6 The control method also includes step S500.

[0090] S500: When performing air purification, return to the step of obtaining the actual conductivity of the condensate water generated in real time, and control the household appliance to be in air purification mode when the actual conductivity is not less than the second preset conductivity.

[0091] Understandably, if the actual conductivity obtained in real time is not less than the second preset conductivity when performing air purification, it means that the current air quality has not reached the preset air quality standard, and it is necessary to control the household appliances to be in air purification mode to continue the air purification operation.

[0092] In some embodiments, the control method further includes: determining that the actual conductivity is not greater than a first preset conductivity, and controlling the household appliance to be in normal working mode.

[0093] Understandably, if the actual conductivity is not greater than the first preset conductivity, the existing air quality is in a normal air quality environment and will not affect human health. Therefore, air purification is not required, and household appliances can be controlled to operate normally.

[0094] Please see Figure 7 In another aspect, this application provides an air purification control device 200, which includes an acquisition unit 21 and a control unit 22. The acquisition unit 21 is used to acquire the actual conductivity of the condensate water generated by the household appliance; the control unit 22 is used to determine whether to activate the air purification mode of the household appliance based on the acquired actual conductivity.

[0095] In some embodiments, the control unit 22 controls the household appliance to enter air purification mode when the actual conductivity is greater than a first preset conductivity.

[0096] When the air purification mode is executed, if the actual conductivity is less than the second preset conductivity, the household appliance is controlled to be in normal working mode; and if the actual conductivity is not less than the second preset conductivity, the household appliance is controlled to be in air purification mode.

[0097] The first preset conductivity is greater than the second preset conductivity.

[0098] In some embodiments, the control unit 22 determines that the actual conductivity is not greater than a first preset conductivity and controls the household appliance to be in normal working mode.

[0099] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A household appliance, characterized in that, The household appliance has an air purification mode and a normal operating mode. The household appliance is an air conditioner and includes: The electrical body includes an evaporator (13). Adsorption element (11) is used to adsorb the condensate generated by the refrigeration of the electrical appliance body; A conductivity detection device (12) is installed on the electrical body and electrically connected to the adsorption element (11) for detecting the real-time conductivity of condensate. The conductivity detection device (12) controls the air purification mode of the household appliance to be turned on when the real-time conductivity is greater than the maximum threshold of the preset conductivity; and the controller turns on the normal operation mode of the household appliance when the real-time conductivity is less than the minimum threshold of the preset conductivity while the air purification mode is in effect; the appliance body includes an electrical component that can collect condensate, the adsorption element (11) is a conductive polymer coating coated on the electrical component, and the conductive polymer coating has a multi-microporous structure (111) on its surface.

2. The household appliance according to claim 1, characterized in that, The conductivity detection device (12) includes a conductive element (121), a conductivity detector (122), and a controller. The conductive element (121) is electrically connected between the adsorption element (11) and the conductivity detector (122). The conductivity detector (122) is used to obtain the real-time conductivity of the condensate. When the real-time conductivity is greater than the maximum threshold of the preset conductivity, the controller controls the air purification mode of the household appliance to be turned on. Furthermore, when the controller is in the air purification mode and the real-time conductivity is less than the minimum threshold of the preset conductivity, the normal operation mode of the household appliance is activated.

3. The household appliance according to claim 1, characterized in that, The conductivity detection device (12) includes a conductive element (121) and a conductivity detector (122), wherein the conductive element (121) is electrically connected between the adsorption element (11) and the conductivity detector (122); The conductive element (121) includes a first electrode (1211) and a second electrode (1212), which are electrically connected to opposite sides of the conductive polymer coating along the thickness direction.

4. The household appliance according to claim 1, characterized in that, The adsorption element (11) is a conductive polymer coating applied to the evaporator (13).

5. A method for controlling air purification, used in a household appliance as described in any one of claims 1 to 4, characterized in that, The control method includes: Real-time acquisition of the actual conductivity of condensate produced by household appliances; Determine whether to activate the air purification mode based on the actual conductivity.

6. The control method according to claim 5, characterized in that, The step of determining whether to activate the air purification mode based on the actual conductivity includes: When the actual conductivity is greater than the first preset conductivity, the household appliance is controlled to enter the air purification mode.

7. The control method according to claim 6, characterized in that, The step of controlling the household appliance to enter air purification mode when the actual conductivity is greater than the first preset conductivity includes: When the air purification mode is executed, the step of obtaining the actual conductivity of the generated condensate in real time is returned, and when the actual conductivity is less than the second preset conductivity, the household appliance is controlled to be in normal working mode. Wherein, the first preset conductivity is greater than the second preset conductivity.

8. The control method according to claim 7, characterized in that, The control method further includes: When performing air purification, return to the step of obtaining the actual conductivity of the generated condensate in real time, and when the actual conductivity is not less than the second preset conductivity, control the household appliance to be in air purification mode.

9. An air purification control device (200), used in any one of claims 1 to 4 of a household appliance, characterized in that, The air purification control device (200) includes: The acquisition unit (21) is used to acquire the actual conductivity of the condensate produced by household appliances; The control unit (22) is used to determine whether to turn on the air purification mode of the household appliance based on the actual conductivity obtained.

10. The air purification control device (200) according to claim 9, characterized in that, When the actual conductivity is greater than the first preset conductivity, the control unit (22) controls the household appliance to be in air purification mode; When the air purification mode is executed, if the actual conductivity is less than the second preset conductivity, the household appliance is controlled to be in normal working mode; and if the actual conductivity is not less than the second preset conductivity, the household appliance is controlled to be in air purification mode. Wherein, the first preset conductivity is greater than the second preset conductivity.

11. The air purification control device (200) according to claim 10, characterized in that, The control unit (22) determines that the actual conductivity is not greater than the first preset conductivity and controls the household appliance to be in normal working mode.

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