Waterproof breathable film self-cleaning method and device, gas detection device and air conditioner

Abstract

The invention discloses a waterproof and breathable film self-cleaning method and device, a gas detection device and an air conditioner, the waterproof and breathable film self-cleaning device comprises a waterproof and breathable film, the surface of the waterproof and breathable film is provided with a functional material, and when electrons of the functional material are in an excitation state, the functional material is electrically connected with the waterproof and breathable film; the functional material has oxidation-reduction capacity and hydrophobicity; the light source is arranged opposite to the waterproof breathable film; when the light source is turned on, electrons of the functional material are excited by light beams of the light source, so that the waterproof breathable film is self-cleaned. According to the scheme, when the light source irradiates the waterproof breathable film, electrons of the functional material are in an excited state, so that pollutants on the waterproof breathable film are subjected to oxidation reduction, and meanwhile, the functional material with the electrons in the excited state has hydrophobicity and can repel liquid water on the waterproof breathable film, so that the liquid water quickly flows away or evaporates, and the water quality is improved. Therefore, the self-cleaning of the waterproof breathable film is realized.

Description

Technical Field

[0001] This invention belongs to the field of electrical equipment, and particularly relates to a method, apparatus, gas detection device, and air conditioner for self-cleaning a waterproof and breathable membrane. Background Technology

[0002] In related technologies, gas detection sensors typically employ a waterproof and breathable membrane to isolate the core detection element from the external environment during use. Gas molecules in the environment can diffuse freely and enter the detection chamber of the gas detection sensor through the membrane. Simultaneously, the membrane prevents moisture, oil, dust, and other contaminants from entering the detection chamber, thus avoiding any impact on the sensor's sensitive elements.

[0003] While waterproof and breathable membranes can block liquid water, they cannot prevent water vapor from entering. The high humidity environment inside the detection chamber can affect the measurement accuracy of the gas sensor. Furthermore, if contaminants are present on the surface of the waterproof and breathable membrane, gas cannot diffuse into the detection chamber, thus affecting the response speed of the gas sensor. Summary of the Invention

[0004] In view of the above-mentioned technical problems in related technologies, the present invention provides a method, apparatus, gas detection device and air conditioner for self-cleaning waterproof and breathable membranes.

[0005] In a first aspect, embodiments of the present invention provide a waterproof and breathable membrane self-cleaning device, comprising:

[0006] A waterproof and breathable membrane, wherein the surface of the waterproof and breathable membrane has a functionalized material, and when the electrons of the functionalized material are in an excited state, the functionalized material has redox ability and hydrophobicity;

[0007] A light source is positioned opposite to the waterproof and breathable membrane.

[0008] When the light source is turned on, the electrons of the functional material are excited by the light beam of the light source, so that the waterproof and breathable membrane can perform self-cleaning.

[0009] In some embodiments, the functionalized material includes TiO2, WO3, and SnO2.

[0010] In a second aspect, embodiments of the present invention provide a gas detection device, comprising:

[0011] A housing that forms a gas chamber;

[0012] A gas sensor is disposed within the gas chamber;

[0013] The waterproof and breathable membrane self-cleaning device as described in the first aspect;

[0014] The housing has an air inlet, and a waterproof and breathable membrane covers the air inlet. Gas outside the gas chamber enters the gas chamber through the waterproof and breathable membrane, so that the gas sensor can detect the gas inside the gas chamber.

[0015] In some embodiments, the apparatus further includes:

[0016] A controller, connected to the light source, is used to control the light source to turn on and off.

[0017] In some embodiments, the apparatus further includes:

[0018] An environmental data sensor is installed inside the gas chamber to detect environmental data within the gas chamber.

[0019] The controller is connected to the environmental data sensor. The controller is used to monitor the change in the environmental data according to a preset time interval, and when the change in the environmental data is detected to be greater than the preset change within the target time interval, the controller controls the light source to be turned on for a first preset duration.

[0020] In some embodiments, the environmental data sensor is a temperature and humidity sensor;

[0021] The controller is configured to control the light source to turn on for the first preset duration when it detects that the temperature change is greater than a preset temperature change and / or the humidity change is greater than a preset humidity change within the target time interval.

[0022] In some embodiments, the apparatus further includes:

[0023] A timer is used to record the duration of the light source's shutdown since its last shutdown.

[0024] The controller is connected to the timer and is used to control the light source to turn on for a second preset duration when the off duration is greater than a threshold, so as to perform self-cleaning on the waterproof and breathable membrane.

[0025] In some embodiments, the gas sensor is a refrigerant detection sensor.

[0026] Thirdly, embodiments of the present invention provide an air conditioner, characterized in that it includes:

[0027] The gas detection device as described in the second aspect;

[0028] An air conditioning controller is connected to the gas detection device.

[0029] In some embodiments, the gas detection device is installed inside the indoor unit of the air conditioner, and the indoor unit is equipped with a fan;

[0030] The air conditioning controller is used to control the fan to start when the light source of the gas detection device is turned on, so as to accelerate the self-cleaning process of the waterproof and breathable membrane.

[0031] Fourthly, embodiments of the present invention provide a self-cleaning method for a waterproof and breathable membrane, wherein the waterproof and breathable membrane is disposed at the air inlet of the gas chamber where the gas sensor is located, and the method includes:

[0032] Acquire target data, which is data used to trigger the waterproof and breathable membrane to perform a self-cleaning operation;

[0033] If the target data meets the preset conditions, the light source positioned opposite the waterproof and breathable membrane is turned on.

[0034] The waterproof and breathable membrane has a functionalized material on its surface. When the electrons of the functionalized material are excited, the functionalized material has redox capabilities and hydrophobicity. When the light source is turned on, the electrons of the functionalized material are excited by the light beam of the light source, so that the waterproof and breathable membrane can perform self-cleaning.

[0035] In some embodiments, acquiring the target data includes: acquiring environmental data within the gas chamber;

[0036] If the target data meets the preset conditions, the step of controlling the light source positioned opposite to the waterproof and breathable membrane to turn on includes: monitoring the change in the environmental data according to a preset time interval, and when the change in the environmental data is detected to be greater than a preset change within the target time interval, controlling the light source to turn on for a first preset duration.

[0037] In some implementations, the target data includes temperature data and / or humidity data, and controlling the light source to be turned on for a first preset duration when the change in the environmental data is detected to be greater than a preset change within the target time interval includes:

[0038] If, within the target time interval, a temperature change greater than a preset temperature change and / or a humidity change greater than a preset humidity change is detected, the light source is controlled to turn on for the first preset duration.

[0039] In some implementations, acquiring the target data includes: acquiring the duration of the light source's shutdown since its last shutdown;

[0040] The step of controlling the light source positioned opposite the waterproof and breathable membrane to turn on if the target data meets the preset conditions includes: if the off time is greater than a threshold, controlling the light source to turn on for a second preset time.

[0041] In some embodiments, the gas sensor is a refrigerant detection sensor located in the indoor unit of an air conditioner, and the method further includes:

[0042] If the target data meets the preset conditions, the fan of the indoor unit is turned on to accelerate the self-cleaning process of the waterproof and breathable membrane.

[0043] The embodiments of the present invention provide one or more technical solutions that achieve at least the following technical effects or advantages:

[0044] The waterproof and breathable membrane self-cleaning device provided in this specification includes a waterproof and breathable membrane and a light source. The surface of the waterproof and breathable membrane has functionalized materials. When the electrons of the functionalized materials are in an excited state, the functionalized materials have oxidation-reduction capabilities and hydrophobicity. When the light source is turned on, the electrons of the functionalized materials are excited by the light beam of the light source, thereby enabling the waterproof and breathable membrane to self-clean. In this solution, a waterproof and breathable membrane with functionalized materials is used. When the waterproof and breathable membrane needs to self-clean, the light source is turned on to irradiate the waterproof and breathable membrane, causing the electrons of the functionalized materials to be in an excited state, thereby oxidizing and reducing contaminants on the waterproof and breathable membrane. At the same time, the functionalized materials in the excited state are hydrophobic, which can repel liquid water on the waterproof and breathable membrane, allowing the liquid water to flow away or evaporate quickly, thereby achieving self-cleaning of the waterproof and breathable membrane. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used 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 those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 A schematic diagram of a waterproof and breathable membrane self-cleaning device provided in the embodiments of this specification;

[0047] Figure 2 A schematic diagram of the gas detection device provided in the embodiments of this specification;

[0048] Figure 3 A schematic diagram of an air conditioner provided as an embodiment of this specification;

[0049] Figure 4 This is a flowchart illustrating a self-cleaning method for a waterproof and breathable membrane, as provided in the embodiments of this specification. Detailed Implementation

[0050] This specification provides a method, apparatus, gas detection device, and air conditioner for self-cleaning a waterproof and breathable membrane. The self-cleaning apparatus for the waterproof and breathable membrane includes: a waterproof and breathable membrane, the surface of which has a functionalized material; when the electrons of the functionalized material are excited, the functionalized material has redox capabilities and hydrophobicity; and a light source, disposed opposite to the waterproof and breathable membrane; wherein, when the light source is turned on, the electrons of the functionalized material are excited by the light beam of the light source, thereby enabling the waterproof and breathable membrane to self-clean.

[0051] The solution in the embodiments of this specification employs a waterproof and breathable membrane with functionalized materials. When the waterproof and breathable membrane needs self-cleaning, a light source is turned on to irradiate it, causing the electrons of the functionalized materials to be in an excited state, thereby oxidizing and reducing contaminants on the waterproof and breathable membrane. Simultaneously, the functionalized materials in the excited state are hydrophobic, repelling liquid water on the waterproof and breathable membrane, allowing the liquid water to flow away or evaporate quickly, thus achieving self-cleaning of the waterproof and breathable membrane.

[0052] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0053] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention 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 the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0054] like Figure 1The diagram shown is a schematic of a waterproof and breathable membrane self-cleaning device provided in an embodiment of this specification. The waterproof and breathable membrane self-cleaning device 100 may include: a waterproof and breathable membrane 110, the surface of which has a functionalized material. When the electrons of the functionalized material are excited, the functionalized material has redox capabilities and hydrophobicity; and a light source 120, which is disposed opposite to the waterproof and breathable membrane 110. When the light source 120 is turned on, the electrons of the functionalized material are excited by the light beam of the light source, thereby enabling the waterproof and breathable membrane 110 to perform self-cleaning.

[0055] In the embodiments of this specification, the functionalized material can be coated as a coating on the surface of the waterproof and breathable membrane 110. The waterproof and breathable membrane 110 can also be a membrane made of the functionalized material. The functionalized material can be selected according to actual needs. In some embodiments, the functionalized material may include TiO2 (titanium dioxide), WO3 (tungsten trioxide) and SnO2 (tin oxide). The functionalized material can also be a semiconductor metal oxide of the same type as the above materials, which is not limited here.

[0056] For ease of explanation, TiO2 (titanium dioxide) will be used as the functionalized material in the following examples. In some embodiments, the main component of the surface coating of the waterproof and breathable membrane 110 can be nano-titanium dioxide. TiO2 is an N-type semiconductor material with a band gap of 3.2 eV. When it is irradiated by light with a wavelength less than or equal to 387.5 nm (e.g., ultraviolet light), electrons in the valence band gain the energy of photons and jump to the conduction band, forming photogenerated electrons (e-). Correspondingly, photogenerated holes (h+) are formed in the valence band, thus giving it a strong redox capability under ultraviolet light, which can completely decompose contaminants such as grease adhering to its surface into harmless CO2 and H2O. At the same time, TiO2 in the excited state has extremely strong hydrophobicity, which can quickly evaporate liquid water accumulated on the surface of the breathable membrane, avoiding the formation of a water film that would affect the sensor performance.

[0057] In the embodiments described in this specification, the light source 120 can be set according to actual needs, as long as the wavelength of the light beam emitted by the light source can excite the electrons in the functional material to undergo transitions. In some embodiments, the light source 120 can be an ultraviolet lamp.

[0058] The position of the light source 120 can be selected according to actual needs, as long as the light beam emitted by the light source 120 can illuminate the waterproof and breathable membrane. In some embodiments, the light source 120 can be positioned directly above the waterproof and breathable membrane 110.

[0059] It should be noted that the type of light source 120 can be a normally on light source or a light source that is switched on and off according to a certain strategy. Taking a light source 120 that is switched on and off according to a certain strategy as an example, in some embodiments, the light source 120 can be turned on and off at fixed time intervals. The fixed time interval and the duration of the on-time can be set according to actual needs, such as turning on for 10 minutes every other day, or turning on for 15 minutes every week. In other embodiments, the light source 120 can determine whether to turn on based on changes in the environment where the waterproof and breathable membrane is located. For example, when the temperature and humidity changes in the environment where the waterproof and breathable membrane is located exceed a preset value, the light source is turned on for self-cleaning.

[0060] The waterproof and breathable membrane self-cleaning device provided in the embodiments of this specification can be applied in a gas detection device. Since the gas sensor in the gas detection device is used to detect gas in the environment, in order to ensure the accuracy of the gas detection results, a waterproof and breathable membrane is usually required to isolate the liquid in the environment and allow the gas in the environment to pass through.

[0061] The types of gas detection devices can be refrigerant detection devices used in air conditioners, gas leak detection devices used in kitchens, or other types of gas detection devices; no specific restrictions are imposed here.

[0062] like Figure 2 The diagram shown is a schematic of a gas detection device provided in an embodiment of this specification. The gas detection device 200 includes: a housing 210 forming a gas chamber; a gas sensor 220 disposed in the gas chamber; and a waterproof and breathable membrane self-cleaning device 100. An air inlet is provided on the housing 210, and a waterproof and breathable membrane 110 covers the air inlet. Gas outside the gas chamber enters the gas chamber through the waterproof and breathable membrane 110, allowing the gas sensor to detect the gas inside the gas chamber.

[0063] In the embodiments described in this specification, the material and shape of the housing 210 can be selected according to actual needs and are not limited here. The housing 210 can form a gas chamber for accommodating the gas sensor 220. The type of gas sensor 220 can be selected according to the actual application scenario. For example, in a refrigerant detection scenario, the gas sensor 220 is a refrigerant sensor, and in a gas leak detection scenario, the gas sensor 220 is a gas detection sensor.

[0064] An air inlet is provided on the housing 210. The shape and specific location of the air inlet can be selected according to actual needs and are not limited here. In some embodiments, the air inlet can be a circular opening located on the side wall of the housing. A waterproof and breathable membrane 110 covers the air inlet, which can isolate the gas chamber from the external environment, allowing gas from the external environment to pass through the waterproof and breathable membrane 110 and enter the gas chamber through the air inlet, while keeping liquid outside the waterproof and breathable membrane 110.

[0065] In the embodiments described in this specification, the control of the light source 120 in the gas detection device 200 can be controlled by a controller installed in the gas detection device, or by a controller of other devices connected to the light source 120; no limitation is made here.

[0066] In some embodiments, the gas detection device 200 may further include a controller 230, which is connected to the light source 120 and is used to control the turning on and off of the light source 120. The controller 230 may be located inside or outside the housing 210, and this is not limited thereto.

[0067] Considering that waterproof and breathable membranes can block liquid water but have little effect on blocking water vapor, in high-temperature environments, a large amount of water vapor will enter the gas chamber through the membrane. The high humidity inside will affect the measurement accuracy of the sensor. Secondly, if the ambient temperature changes, this high-humidity water vapor will condense. On the one hand, condensation will affect the reliability of the sensor; on the other hand, condensation will form a water film on the surface of the waterproof and breathable membrane, which may completely block the vents, preventing gas from diffusing into the gas chamber and causing the sensor to malfunction. Furthermore, during long-term operation, grease, dust, and other organic matter in the air will also adhere to the waterproof and breathable membrane, affecting the sensor's response speed and performance.

[0068] Based on this, in the embodiments of this specification, the gas detection device 200 may further include an environmental data sensor 240, which is installed in the gas chamber and used to detect environmental data in the gas chamber; the controller 230 is connected to the environmental data sensor 240, and the controller 230 is used to monitor the change in environmental data according to a preset time interval, and when the change in environmental data is detected to be greater than the preset change within the target time interval, the controller controls the light source 120 to turn on for a first preset duration.

[0069] The environmental data sensor 240 can be a temperature sensor, humidity sensor, or temperature and humidity sensor, etc. Environmental data can include temperature data and / or humidity data. The preset time interval can be set according to actual needs; for example, the preset time interval can be 10 minutes, 15 minutes, 18 minutes, etc. In some embodiments, when environmental data changes, to avoid the formation of a water film on the waterproof and breathable membrane 110 affecting the detection results of the gas detection sensor, the change in environmental data can be monitored at preset time intervals. When the environmental data changes, the light source 120 is turned on to perform a self-cleaning of the waterproof and breathable membrane 110.

[0070] It should be noted that the first preset duration for the light source 120 to be turned on can be set according to actual needs. For example, the first preset duration can be 30 seconds, 1 minute, etc. In some embodiments, the duration for the light source 120 to be turned on can also be determined according to the degree of contamination of the waterproof and breathable membrane. If the degree of contamination is heavy, the duration for turning on can be extended; if the degree of contamination is light, the duration for turning on can be reduced.

[0071] For ease of explanation, taking the environmental data sensor 240 as a temperature and humidity sensor as an example, the controller 230 can be used to control the light source to turn on for a first preset duration when the temperature change is greater than a preset temperature change and / or the humidity change is greater than a preset humidity change within a preset time interval.

[0072] Specifically, if the temperature and humidity sensor only detects temperature data within the gas chamber, it can determine whether to turn on the light source 120 based on the temperature change. For example, if the preset time interval is 10 minutes, the temperature change is continuously detected in each 10-minute cycle. If the detected temperature change in the current cycle (i.e., within the target time interval) is greater than the preset temperature change, the light source 120 is controlled to turn on for a first preset duration. The preset temperature change can be set according to actual needs, for example, 50°C, 60°C, 70°C, etc.

[0073] If the temperature and humidity sensor only detects humidity data within the gas chamber, it can determine whether to turn on the light source 120 based on the humidity change. For example, if the preset time interval is 15 minutes, the humidity change is continuously detected in each 15-minute cycle. If the detected humidity change in the current cycle (i.e., within the target time interval) is greater than the preset humidity change, the light source 120 is controlled to turn on for a first preset duration. The preset humidity change can be set according to actual needs, for example, a preset humidity change of 40%, 50%, or 60%.

[0074] If the temperature and humidity sensor collects both temperature and humidity data within the gas chamber, it can determine whether to turn on the light source 120 based on the changes in temperature and humidity. For example, if the preset time interval is 13 minutes, then the temperature and humidity changes are continuously detected in each 13-minute cycle. If the detected temperature change in the current cycle (i.e., within the target time interval) is greater than the preset temperature change and the humidity change is greater than the preset humidity change, then the light source 120 is controlled to turn on for a first preset duration.

[0075] In the embodiments described in this specification, the gas detection device may further include a timer 250, which may be disposed inside or outside the housing 210. Figure 2 In the housing 210, a timer 250 is disposed outside the housing 210. The timer 250 can be used to record the duration of the light source 120 after it has been turned off. The controller 120 is connected to the timer, and the controller 120 can also control the light source 120 to turn on for a second preset duration when the duration of the off detected by the timer 250 exceeds a threshold.

[0076] Specifically, considering that the temperature and humidity sensor does not detect any changes in temperature and humidity for an extended period, the self-cleaning of the waterproof and breathable membrane cannot be triggered by changes in temperature and humidity. Alternatively, if the temperature and humidity sensor malfunctions, the self-cleaning of the waterproof and breathable membrane cannot be triggered by temperature and humidity changes either. To avoid the inability to perform self-cleaning of the waterproof and breathable membrane for an extended period due to the above situations, in this embodiment of the specification, a timer can be used to record the duration of the light source 120's shutdown since its last shutdown. That is, each time the light source 120 is detected to switch from on to off, the timer 250 starts counting. If the shutdown duration of the light source 120 exceeds a threshold, the controller 230 controls the light source 120 to start a second duration to perform self-cleaning of the waterproof and breathable membrane. The threshold can be set according to actual needs, for example, the threshold can be 1 day, 5 days, 7 days, etc. The second duration can also be set according to actual needs, for example, 1 minute, 2 minutes, etc.

[0077] It should be noted that the gas detection device provided in the embodiments of this specification may include a PCB (Printed Circuit Board), on which the gas sensor 220, controller 230, environmental data sensor 240, and timer 250 are all mounted. A housing 210 is disposed around the gas sensor 220, forming a gas chamber, and a waterproof and breathable membrane 110 covers the air inlet of the housing 210. The gas detection device may also include an outer shell for housing the PCB and various components. The light source 120 may be disposed on the inner surface of the outer shell and positioned opposite to the waterproof and breathable membrane 110.

[0078] In the embodiments of this specification, the gas detection device 200 can be applied to an air conditioner, such as... Figure 3 The diagram shown is a schematic representation of an air conditioner provided in an embodiment of this specification. Figure 3 In this context, the air conditioner 300 may include: a gas detection device 200 and an air conditioner controller 310 connected to the gas detection device 200.

[0079] When the gas detection device 200 is used in an air conditioner, the gas sensor in the gas detection device 200 can be a refrigerant detection sensor. The gas detection device 200 can be placed near the evaporator of the indoor unit to detect whether there is a refrigerant leak in the air conditioner 300.

[0080] The air conditioning controller 310 is connected to the gas detection device 200. The air conditioning controller 310 can be used to control the light source in the gas detection device 200 to turn on and off. Of course, when the gas detection device 200 is equipped with a controller, the light source can be controlled to turn on and off through its own controller.

[0081] When the gas detection device 200 is installed in the indoor unit, the indoor unit of the air conditioner 300 is also equipped with a fan. When the light source of the gas detection device 200 is activated to perform the self-cleaning of the waterproof and breathable membrane, the fan can be controlled to turn on to accelerate the self-cleaning of the waterproof and breathable membrane.

[0082] It should be noted that when the waterproof and breathable membrane performs self-cleaning, on the one hand, it decomposes contaminants such as grease adhering to the surface of the membrane through an oxidation-reduction reaction. Activating the fan during the self-cleaning process increases the oxygen content, allowing the oxidation-reduction reaction to proceed more fully and the contaminant decomposition to be more thorough. On the other hand, since the contaminants are ultimately decomposed into CO2 and H2O, and the waterproof and breathable membrane itself may also contain liquid water, activating the fan accelerates the evaporation and flow of this liquid water, thereby speeding up the self-cleaning process of the waterproof and breathable membrane.

[0083] Based on the same inventive concept, embodiments of this specification also provide a self-cleaning method for a waterproof and breathable membrane, wherein the waterproof and breathable membrane is disposed at the air inlet of the gas chamber where the gas sensor is located, such as... Figure 4 The diagram shown is a flowchart of a self-cleaning method for a waterproof and breathable membrane provided in an embodiment of this specification. The method includes:

[0084] Step S401: Obtain target data, wherein the target data is data used to trigger the waterproof and breathable membrane to perform a self-cleaning operation;

[0085] Step S402: If the target data meets the preset conditions, control the light source that is positioned opposite to the waterproof and breathable membrane to turn on;

[0086] The waterproof and breathable membrane has a functionalized material on its surface. When the electrons of the functionalized material are excited, the functionalized material has redox capabilities and hydrophobicity. When the light source is turned on, the electrons of the functionalized material are excited by the light beam of the light source, so that the waterproof and breathable membrane can perform self-cleaning.

[0087] The methods provided in the embodiments of this specification can be applied to the controller of the gas detection device, or to the controller of an electrical device containing a gas detection device, such as an air conditioner controller. They can also be implemented through the interaction between the gas detection device and the electrical device containing the gas detection device, which is not limited here.

[0088] In step S401, the target data can be environmental data within the gas chamber, such as temperature and / or humidity data. The target data can be collected by sensors installed within the gas chamber. The target data can also be the duration for which the light source is off.

[0089] In step S402, preset conditions corresponding to different types of target data can be pre-set. If the target data meets the preset conditions, it indicates that the waterproof and breathable membrane needs to perform self-cleaning. In this case, the light source is turned on to irradiate the waterproof and breathable membrane, so that the membrane can perform self-cleaning.

[0090] In some embodiments, acquiring the target data includes: acquiring environmental data within the gas chamber;

[0091] If the target data meets the preset conditions, the step of controlling the light source positioned opposite to the waterproof and breathable membrane to turn on includes: monitoring the change in the environmental data according to a preset time interval, and when the change in the environmental data is detected to be greater than a preset change within the target time interval, controlling the light source to turn on for a first preset duration.

[0092] In some embodiments, the target data includes temperature data and / or humidity data, and when the change in the environmental data is detected to be greater than a preset change within a target time interval, controlling the light source to be turned on for a first preset duration includes:

[0093] If, within the target time interval, a temperature change greater than a preset temperature change and / or a humidity change greater than a preset humidity change is detected, the light source is controlled to turn on for the first preset duration.

[0094] In some embodiments, acquiring target data includes: acquiring the duration of the light source's shutdown since its last shutdown;

[0095] The step of controlling the light source positioned opposite the waterproof and breathable membrane to turn on if the target data meets the preset conditions includes: if the off time is greater than a threshold, controlling the light source to turn on for a second preset time.

[0096] In some embodiments, the gas sensor is a refrigerant detection sensor located in the indoor unit of an air conditioner, and the method further includes:

[0097] If the target data meets the preset conditions, the fan of the indoor unit is turned on to accelerate the self-cleaning process of the waterproof and breathable membrane.

[0098] In the embodiments of this specification, considering that contaminants may accumulate on the surface of the waterproof and breathable membrane as the usage time increases, a fixed self-cleaning strategy for the membrane may not be sufficient to thoroughly remove contaminants. Therefore, in some embodiments, when the usage time of the waterproof and breathable membrane exceeds a preset usage time, the activation time of the light source for self-cleaning can be increased to fully decompose the contaminants on the membrane surface. Simultaneously, the threshold for activating the light source by reducing the off-time can be shortened to increase the self-cleaning frequency. Of course, the preset temperature change and / or preset humidity change can also be appropriately reduced to increase the self-cleaning frequency; this is not limited here.

[0099] The specific implementation process of each step in the above method has been described in detail in the embodiments of the gas detection device provided in this specification, and will not be elaborated here.

[0100] Based on the same inventive concept, embodiments of this specification provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described self-cleaning method for waterproof and breathable membranes.

[0101] Based on the same inventive concept, embodiments of this specification provide a computer program product, which includes a computer program that, when executed by a processor, loads and executes the steps of the above-described self-cleaning method for waterproof and breathable membranes.

[0102] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and embodiments are within the scope and spirit of this invention and the appended claims. For example, due to the nature of software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Furthermore, the functional units can be integrated into a single processing unit, or each unit can exist physically separately, or two or more units can be integrated into a single unit.

[0103] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0104] The units described as separate components may or may not be physically separate. Similarly, the components of the control device may or may not be physical units; they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0105] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0106] The above description is merely an 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 the claims of the present invention.

Claims

1. A waterproof and breathable membrane self-cleaning device, characterized in that, include: A waterproof and breathable membrane, wherein the surface of the waterproof and breathable membrane has a functionalized material, and when the electrons of the functionalized material are in an excited state, the functionalized material has redox ability and hydrophobicity; A light source is positioned opposite to the waterproof and breathable membrane. When the light source is turned on, the electrons of the functional material are excited by the light beam of the light source, so that the waterproof and breathable membrane can perform self-cleaning.

2. The apparatus as claimed in claim 1, characterized in that, The functionalized materials include TiO2, WO3, and SnO2.

3. A gas detection device, characterized in that, include: A housing that forms a gas chamber; A gas sensor is disposed within the gas chamber; The waterproof and breathable membrane self-cleaning device as described in claim 1 or 2; The housing has an air inlet, and a waterproof and breathable membrane covers the air inlet. Gas outside the gas chamber enters the gas chamber through the waterproof and breathable membrane, so that the gas sensor can detect the gas inside the gas chamber.

4. The apparatus as described in claim 3, characterized in that, The device further includes: A controller, connected to the light source, is used to control the light source to turn on and off.

5. The apparatus as described in claim 4, characterized in that, The device further includes: An environmental data sensor is installed inside the gas chamber to detect environmental data within the gas chamber. The controller is connected to the environmental data sensor. The controller is used to monitor the change in the environmental data according to a preset time interval, and when the change in the environmental data is detected to be greater than the preset change within the target time interval, the controller controls the light source to be turned on for a first preset duration.

6. The apparatus as claimed in claim 5, characterized in that, The environmental data sensor is a temperature and humidity sensor; The controller is configured to control the light source to turn on for the first preset duration when it detects that the temperature change is greater than a preset temperature change and / or the humidity change is greater than a preset humidity change within the target time interval.

7. The apparatus as claimed in claim 4, characterized in that, The device further includes: A timer is used to record the duration of the light source's shutdown since its last shutdown. The controller is connected to the timer and is used to control the light source to turn on for a second preset duration when the off duration is greater than a threshold, so as to perform self-cleaning on the waterproof and breathable membrane.

8. The apparatus as claimed in claim 3, characterized in that, The gas sensor is a refrigerant detection sensor.

9. An air conditioner, characterized in that, include: The gas detection device as described in any one of claims 3-8; An air conditioning controller is connected to the gas detection device.

10. The air conditioner as described in claim 9, characterized in that, The gas detection device is installed inside the indoor unit of the air conditioner, and a fan is installed inside the indoor unit. The air conditioning controller is used to control the fan to start when the light source of the gas detection device is turned on, so as to accelerate the self-cleaning process of the waterproof and breathable membrane.

11. A self-cleaning method for a waterproof and breathable membrane, characterized in that, The waterproof and breathable membrane is disposed at the air inlet of the gas chamber where the gas sensor is located, and the method includes: Acquire target data, which is data used to trigger the waterproof and breathable membrane to perform a self-cleaning operation; If the target data meets the preset conditions, the light source positioned opposite the waterproof and breathable membrane is turned on. The waterproof and breathable membrane has a functionalized material on its surface. When the electrons of the functionalized material are excited, the functionalized material has redox capabilities and hydrophobicity. When the light source is turned on, the electrons of the functionalized material are excited by the light beam of the light source, so that the waterproof and breathable membrane can perform self-cleaning.

12. The method as described in claim 11, characterized in that, The acquisition of target data includes: acquiring environmental data within the gas chamber; If the target data meets the preset conditions, the step of controlling the light source positioned opposite to the waterproof and breathable membrane to turn on includes: monitoring the change in the environmental data according to a preset time interval, and when the change in the environmental data is detected to be greater than a preset change within the target time interval, controlling the light source to turn on for a first preset duration.

13. The method as described in claim 12, characterized in that, The target data includes temperature data and / or humidity data. When the change in the environmental data is detected to be greater than a preset change within the target time interval, controlling the light source to turn on for a first preset duration includes: If, within the target time interval, a temperature change greater than a preset temperature change and / or a humidity change greater than a preset humidity change is detected, the light source is controlled to turn on for the first preset duration.

14. The method as described in claim 11, characterized in that, The acquisition of target data includes: acquiring the duration of the light source's shutdown since its last shutdown; The step of controlling the light source positioned opposite the waterproof and breathable membrane to turn on if the target data meets the preset conditions includes: if the off time is greater than a threshold, controlling the light source to turn on for a second preset time.

15. The method as described in claim 11, characterized in that, The gas sensor is a refrigerant detection sensor located in the indoor unit of the air conditioner, and the method further includes: If the target data meets the preset conditions, the fan of the indoor unit is turned on to accelerate the self-cleaning process of the waterproof and breathable membrane.

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