Device and method for detecting filth blockage of filter screen of air conditioner

Abstract

The invention discloses an air conditioner filter screen filth blockage detection device and method, and the device comprises a spraying module which is used for spraying atomized liquid drops to the windward side of a filter screen; the detection module is used for detecting the amount of liquid drops penetrating through the filter screen; and the control module is used for judging whether the filter screen is filth-blocked or not according to the liquid drop amount detected by the detection module, and giving a prompt when the filter screen is filth-blocked. According to the filth blockage detection device and method for the filter screen of the air conditioner, the spraying module is designed to spray the atomized liquid drops to the windward side of the filter screen, the detection module is designed to detect the amount of the liquid drops penetrating through the filter screen, the control module judges whether the filter screen is filth-blocked or not according to the amount of the liquid drops detected by the detection module, and a prompt is given out when it is judged that the filter screen is filth-blocked. A user is reminded to timely clean the filter screen; whether the filter screen is filth-blocked or not is judged according to the amount of the liquid drops penetrating through the filter screen, simplicity and convenience are achieved, detection accuracy is high, and the technical problem that filter screen filth-blocking detection accuracy is poor in the prior art is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioning, and in particular, relates to a device and method for detecting dirty or blocked air conditioning filters. Background Art

[0002] Air conditioning is a common device used for air conditioning. Whether it can be used healthily is an important factor affecting the user experience.

[0003] The dust filter of the air conditioner is hidden behind the panel and is generally not easy for users to see. Over time, the dust filter will accumulate dust. Many users have used it for many years without opening the panel to check its cleanliness. Dust accumulation in the dust filter will affect the performance of the air conditioner and the health of the user.

[0004] At present, the method for detecting whether the dust filter of an air conditioner is dirty or clogged is generally to detect the pressure difference on both sides of the dust filter. However, the above detection method is easily affected by external factors, has poor detection accuracy, and is prone to misjudgment. Summary of the invention

[0005] The present invention provides an air conditioner filter dirt and blockage detection device, which solves the technical problem of poor accuracy in filter dirt and blockage detection in the prior art.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0007] An air conditioner filter dirty blockage detection device, comprising:

[0008] A spray module, which is used to spray atomized droplets toward the windward side of the filter;

[0009] A detection module, which is used to detect the amount of droplets passing through the filter;

[0010] The control module determines whether the filter is dirty or clogged according to the amount of droplets detected by the detection module, and issues a prompt when it is determined that the filter is dirty or clogged.

[0011] In some embodiments of the present application, the detection module includes a humidity sensor disposed on the leeward side of the filter; the detecting the amount of droplets passing through the filter specifically includes: the humidity sensor detecting a humidity value;

[0012] The method of judging whether the filter screen is dirty or blocked according to the amount of liquid droplets detected by the detection module specifically includes: judging whether the filter screen is dirty or blocked according to the humidity value detected by the humidity sensor:

[0013] When the humidity value detected by the humidity sensor is less than or equal to the set humidity value, it is determined that the filter is dirty and blocked;

[0014] When the humidity value detected by the humidity sensor is greater than the set humidity value, it is determined that the filter is not dirty or clogged.

[0015] In some embodiments of the present application, the detection module includes a plurality of humidity sensors disposed on the leeward side of the filter; the detecting the amount of droplets passing through the filter specifically includes: the plurality of humidity sensors respectively detecting humidity values;

[0016] The method of judging whether the filter screen is dirty or blocked according to the amount of liquid detected by the detection module specifically includes: judging whether the filter screen is dirty or blocked according to the humidity values ​​detected by the plurality of humidity sensors:

[0017] When the humidity value detected by the humidity sensor that exceeds the set ratio is less than or equal to the set humidity value, it is determined that the filter is dirty and clogged;

[0018] When the humidity value detected by the humidity sensor that does not exceed the set ratio is less than or equal to the set humidity value, it is determined that the filter is not dirty or blocked.

[0019] In some embodiments of the present application, the plurality of humidity sensors are arranged in a matrix.

[0020] In some embodiments of the present application, the plurality of humidity sensors are directly mounted on the filter screen;

[0021] Alternatively, the detection module further includes a fixed frame, the plurality of humidity sensors are mounted in the fixed frame, and the fixed frame is detachably connected to a frame of the filter.

[0022] In some embodiments of the present application, a plurality of injection modules are provided, and the plurality of injection modules are arranged in an array.

[0023] In some embodiments of the present application, the filter is installed at the return air outlet of the indoor unit of the air conditioner;

[0024] The detection module is installed on the leeward side of the filter;

[0025] The injection module is installed on the back of the panel of the indoor unit of the air conditioner, facing the windward side of the filter.

[0026] A method for detecting dirty or blocked air conditioner filters, comprising:

[0027] Spray atomized droplets onto the windward side of the filter;

[0028] In some embodiments of the present application, judging whether the filter is dirty or clogged according to the amount of droplets passing through the filter, and issuing a prompt when the filter is determined to be dirty or clogged.

[0029] The humidity value is detected by using a humidity sensor arranged on the leeward side of the filter;

[0030] Determine whether the filter is dirty or blocked based on the humidity value detected by the humidity sensor:

[0031] When the humidity value detected by the humidity sensor is less than or equal to the set humidity value, it is determined that the filter is dirty and blocked;

[0032] When the humidity value detected by the humidity sensor is greater than the set humidity value, it is determined that the filter is not dirty or clogged.

[0033] In some embodiments of the present application, judging whether the filter is dirty or clogged according to the amount of droplets passing through the filter specifically includes:

[0034] Utilize multiple humidity sensors arranged on the leeward side of the filter to detect humidity values ​​respectively;

[0035] Determine whether the humidity value detected by the humidity sensor that exceeds the set ratio is less than or equal to the set humidity value;

[0036] If so, it is determined that the filter is dirty and clogged;

[0037] If not, it is determined that the filter is not dirty or blocked.

[0038] Compared with the prior art, the advantages and positive effects of the present invention are: the air-conditioning filter dirty and blocked detection device and method of the present invention, by designing a spray module for spraying atomized droplets onto the windward side of the filter, and designing a detection module for detecting the amount of droplets passing through the filter, the control module determines whether the filter is dirty and blocked according to the amount of droplets detected by the detection module, and issues a prompt when the filter is determined to be dirty and blocked, reminding the user to clean the filter in time; therefore, the air-conditioning filter dirty and blocked detection device and method of the present invention, by determining whether the filter is dirty and blocked by the amount of droplets passing through the filter, is simple and convenient, has high detection accuracy, and solves the technical problem of poor accuracy in detecting dirty and blocked filters in the prior art.

[0039] Other features and advantages of the present invention will become more apparent after reading the detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0041] Figure 1 It is a structural schematic diagram of an embodiment of the air conditioner filter dirty blockage detection device proposed by the present invention;

[0042] Figure 2 yes Figure 1 Schematic diagram of the fixed frame in being installed on the filter frame;

[0043] Figure 3It is a flow chart of an embodiment of the method for detecting dirty and blocked air conditioner filter proposed by the present invention;

[0044] Figure 4 It is a flow chart of another embodiment of the method for detecting dirty and blocked air conditioner filters proposed by the present invention;

[0045] Figure 5 It is a flow chart of another embodiment of the method for detecting dirty and blocked air conditioner filters proposed by the present invention;

[0046] Figure 6 It is a flow chart of another embodiment of the method for detecting dirty and blocked air conditioner filters proposed by the present invention.

[0047] Reference numerals:

[0048] 10. Panel;

[0049] 20. Injection module;

[0050] 30. Filter; 31. Frame;

[0051] 40. Detection module; 41. Fixed frame; 42. Humidity sensor. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0053] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0054] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0055] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] Embodiment 1

[0057] The air conditioner filter dirty blockage detection device of this embodiment includes an injection module 20, a detection module 40, a control module, etc. Figure 1 , Figure 2 shown.

[0058] The spray module is used to spray atomized droplets toward the windward side of the filter 30 .

[0059] The detection module is used to detect the amount of liquid droplets passing through the filter 30 and send the detected amount of liquid droplets to the control module.

[0060] The control module determines whether the filter 30 is dirty or clogged according to the amount of liquid droplets detected by the detection module, and issues a prompt when it is determined that the filter is dirty or clogged.

[0061] When the control module determines that the filter is dirty or clogged, it sends a prompt signal to the prompt module, such as an indicator light, voice prompt module, buzzer, etc. on the air conditioner, to remind the user to clean the filter in time.

[0062] When the filter is relatively clean and free of dust, the atomized droplets sprayed on the windward side of the filter are easier to pass through the filter, and more droplets reach the leeward side of the filter. Therefore, when the filter is not dirty or blocked, more droplets pass through the filter.

[0063] When there is a lot of dust on the filter and it is clogged, the atomized droplets sprayed to the windward side of the filter are not easy to pass through the filter due to the blocking effect of the dust, and the amount of droplets reaching the leeward side of the filter is small. Therefore, when the filter is clogged, the amount of droplets passing through the filter is small.

[0064] Therefore, it is possible to determine whether the filter is dirty or clogged by detecting the amount of droplets passing through the filter.

[0065] When the amount of droplets passing through the filter is less than or equal to the set amount of droplets, the filter is determined to be dirty and clogged;

[0066] When the amount of droplets passing through the filter is greater than the set amount of droplets, it is determined that the filter is not dirty or clogged.

[0067] The air conditioning filter dirty and clogged detection device of the present embodiment is designed with a spray module for spraying atomized droplets onto the windward side of the filter, and a detection module for detecting the amount of droplets passing through the filter. The control module determines whether the filter is dirty and clogged based on the amount of droplets detected by the detection module, and issues a prompt when the filter is determined to be dirty and clogged, reminding the user to clean the filter in time. Therefore, the air conditioning filter dirty and clogged detection device of the present embodiment determines whether the filter is dirty and clogged by the amount of droplets passing through the filter. The method is simple and convenient, and has high detection accuracy, thereby solving the technical problem of poor accuracy in detecting dirty and clogged filters in the prior art.

[0068] The air conditioner filter dirty and clogged detection device of this embodiment automatically detects whether the filter is dirty and clogged, and issues a prompt when it is determined that the filter is dirty and clogged, reminding the user to clean it in time, which is beneficial to air cleanliness and ensures the health of the user.

[0069] In some embodiments of the present application, the detection module includes a humidity sensor 42 disposed on the leeward side of the filter, and the humidity sensor 42 is used to detect the humidity value.

[0070] Detecting the amount of droplets passing through the filter, specifically including: a humidity sensor detecting a humidity value.

[0071] The more droplets that pass through the filter, the greater the humidity value detected by the humidity sensor. The humidity value detected by the humidity sensor corresponds to the amount of droplets that pass through the filter, and is proportional to the humidity value detected by the humidity sensor.

[0072] Judging whether the filter is dirty or clogged according to the amount of liquid droplets detected by the detection module specifically includes: judging whether the filter is dirty or clogged according to the humidity value detected by the humidity sensor.

[0073] When the humidity value detected by the humidity sensor is less than or equal to the set humidity value, it means that the amount of droplets passing through the filter is less than or equal to the set amount of droplets, and it is determined that the filter is dirty and clogged.

[0074] When the humidity value detected by the humidity sensor is greater than the set humidity value, it means that the amount of droplets passing through the filter is greater than the set amount of droplets, and it is determined that the filter is not dirty or clogged.

[0075] Whether the filter is dirty or clogged is determined by the amount of atomized droplets that pass through the filter and reach the humidity sensor, that is, the humidity value detected by the humidity sensor.

[0076] The humidity value detected by the humidity sensor can be used to determine the amount of droplets passing through the filter and whether the filter is dirty or clogged. It is simple, convenient and accurate.

[0077] In some embodiments of the present application, the humidity sensor is a capacitive humidity sensor. The capacitive humidity sensor can convert humidity into a capacitance change and output an electrical signal to the control module. The control module can obtain the humidity value based on the received electrical signal.

[0078] In some other embodiments of the present application, in order to further improve the humidity detection accuracy on the leeward side of the filter, the detection module includes a plurality of humidity sensors arranged on the leeward side of the filter.

[0079] Detecting the amount of droplets passing through the filter specifically includes: a plurality of humidity sensors respectively detecting humidity values.

[0080] Judging whether the filter is dirty or clogged according to the amount of liquid detected by the detection module specifically includes: judging whether the filter is dirty or clogged according to humidity values ​​detected by multiple humidity sensors.

[0081] When the humidity value detected by the humidity sensor exceeding the set ratio is less than or equal to the set humidity value, it means that the amount of droplets passing through the filter is less than or equal to the set amount of droplets, and the filter is determined to be dirty and clogged.

[0082] When the humidity value detected by the humidity sensor that does not exceed the set ratio is less than or equal to the set humidity value, it means that the amount of droplets passing through the filter is greater than the set amount of droplets, and it is determined that the filter is not dirty or blocked.

[0083] For example, the set ratio is 50%. When the humidity value detected by the humidity sensor exceeds 50% and is less than or equal to the set humidity value, it is determined that the filter is dirty and clogged. When the humidity value detected by the humidity sensor does not exceed 50% and is less than or equal to the set humidity value, it is determined that the filter is not dirty and clogged.

[0084] For example, six humidity sensors are arranged on the leeward side of the filter. When the humidity values ​​detected by more than three humidity sensors are less than or equal to the set humidity value, it is determined that the filter is dirty and clogged.

[0085] In some embodiments of the present application, multiple humidity sensors are arranged in a matrix, which can further improve the accuracy of humidity detection on the leeward side of the filter, thereby improving the accuracy of judging whether the filter is dirty or clogged.

[0086] In some embodiments of the present application, multiple humidity sensors are directly installed on the filter, which is simple and convenient and can directly detect the humidity value on the leeward side of the filter.

[0087] In some other embodiments of the present application, the detection module 40 further includes a fixed frame 41 , and a plurality of humidity sensors 42 are installed in the fixed frame 41 , and the fixed frame 41 is detachably connected to the frame 31 of the filter.

[0088] A plurality of humidity sensors 42 are arranged in a matrix and fixed inside the frame 41 .

[0089] When the fixed frame 41 is mounted on the frame 31 of the filter, the plurality of humidity sensors are located on the leeward side of the filter.

[0090] When one of the humidity sensors needs to be repaired or replaced, the fixed frame 41 is removed from the frame 31 of the filter screen and then repaired or replaced.

[0091] By designing the fixed frame 41, the fixed frame 41 is detachably connected to the frame 31 of the filter, which facilitates the disassembly and assembly of the humidity sensor and the maintenance and replacement of the humidity sensor.

[0092] In some embodiments of the present application, in order to improve the uniformity of the atomized droplets sprayed onto the filter screen, a plurality of spray modules 20 are provided, and the plurality of spray modules 20 are arranged in an array. Figure 1 shown.

[0093] For example, a plurality of spray modules 20 are arranged in a row at equal intervals.

[0094] In some embodiments of the present application, the filter 30 is installed at the return air outlet of the air-conditioning indoor unit; the detection module 40 is installed on the leeward side of the filter 30; the injection module 20 is installed on the back of the panel 10 of the air-conditioning indoor unit, and the injection module 20 faces the windward side of the filter 30, so as to facilitate the installation and fixation of the injection module 20.

[0095] The air conditioner filter dirty and blocked detection device of this embodiment detects the amount of atomized liquid droplets passing through the filter, that is, the amount of liquid droplets sprayed onto the humidity sensor to determine the cleanliness of the filter, and then reminds the user when to remove and clean the filter. The humidity sensor on the leeward side of the filter detects the humidity value and automatically determines whether the filter is dirty and blocked. Therefore, the cleanliness of the filter can be grasped without manually opening the panel to observe the filter.

[0096] Embodiment 2

[0097] Based on the design of the air conditioning filter dirty and blocked detection device of the first embodiment, the second embodiment proposes an air conditioning filter dirty and blocked detection method.

[0098] The air conditioner filter dirty blockage detection method of this embodiment mainly includes the following steps, see Figure 3 shown.

[0099] Step S11: spraying atomized droplets toward the windward side of the filter.

[0100] Step S12: judging whether the filter is dirty or clogged according to the amount of droplets passing through the filter, and giving a prompt when it is determined that the filter is dirty or clogged.

[0101] The spray module is used to spray atomized droplets onto the windward side of the filter. The detection module is used to detect the amount of droplets passing through the filter and send the detected amount of droplets to the control module. The control module determines whether the filter is dirty or clogged based on the amount of droplets passing through the filter and issues a prompt when the filter is determined to be dirty or clogged.

[0102] The method for detecting dirty and clogged air conditioner filters in the present embodiment sprays atomized droplets onto the windward side of the filter, determines whether the filter is dirty and clogged based on the amount of droplets passing through the filter, and issues a prompt when the filter is determined to be dirty and clogged, reminding the user to clean the filter in time. Therefore, the method for detecting dirty and clogged air conditioner filters in the present embodiment determines whether the filter is dirty and clogged based on the amount of droplets passing through the filter. The method is simple and convenient, has high detection accuracy, and solves the technical problem of poor accuracy in detecting dirty and clogged filters in the prior art.

[0103] In some embodiments of the present application, judging whether the filter is dirty or blocked according to the amount of droplets passing through the filter includes the following steps: Figure 4 shown.

[0104] Step S21: Detect the humidity value using a humidity sensor disposed on the leeward side of the filter.

[0105] Step S22: Determine whether the filter is dirty or clogged based on the humidity value detected by the humidity sensor.

[0106] When the humidity value detected by the humidity sensor is less than or equal to the set humidity value, it means that the amount of droplets passing through the filter is less than or equal to the set amount of droplets, and it is determined that the filter is dirty and clogged.

[0107] When the humidity value detected by the humidity sensor is greater than the set humidity value, it means that the amount of droplets passing through the filter is greater than the set amount of droplets, and it is determined that the filter is not dirty or clogged.

[0108] By designing S21-S22, whether the filter is dirty or blocked is determined according to the humidity value detected by the humidity sensor, which is simple, convenient and highly accurate.

[0109] In some other embodiments of the present application, judging whether the filter is dirty or blocked according to the amount of droplets passing through the filter includes the following steps: Figure 5 shown.

[0110] Step S31: Utilize a plurality of humidity sensors disposed on the leeward side of the filter to detect humidity values ​​respectively.

[0111] Step S32: Determine whether there is a humidity value detected by the humidity sensor that exceeds a set ratio and is less than or equal to a set humidity value.

[0112] If so, that is, more than a set ratio of humidity values ​​detected by the humidity sensors are less than or equal to the set humidity value, step S33 is executed: determining whether the filter is dirty or clogged.

[0113] If not, that is, the humidity value detected by the humidity sensor that does not exceed the set ratio is less than or equal to the set humidity value, step S34 is executed: determining whether the filter is dirty or blocked.

[0114] Therefore, when the number of humidity sensors detecting humidity values ​​less than or equal to the set humidity value exceeds the set ratio*total number, it is determined that the filter is dirty and clogged.

[0115] When the number of humidity sensors whose humidity values ​​are less than or equal to the set humidity value does not exceed the set ratio * total number, it is determined that the filter is not dirty or blocked.

[0116] For example, the set ratio is 50%, and the total number of humidity sensors is 6. When the humidity values ​​detected by more than three humidity sensors are less than or equal to the set humidity value, it is determined that the filter is dirty and clogged.

[0117] By designing S31 to S34, the humidity detection accuracy on the leeward side of the filter is further improved, thereby improving the accuracy of judging whether the filter is dirty or clogged.

[0118] The following is a specific example of the specific steps of the air conditioner filter dirty blockage detection method of the present application. Figure 6 shown.

[0119] The air conditioner is running.

[0120] Turn on the detection function.

[0121] The droplets are sprayed onto the filter, passing through the filter and attaching to the humidity sensor behind it.

[0122] When the humidity value detected by the humidity sensor is less than or equal to the set humidity value, a prompt sound is issued to remind you to remove and clean the filter.

[0123] Repeat the detection process. If the humidity value detected by the humidity sensor is still less than or equal to the set humidity value, the alarm tone will continue to sound to remind you to remove and clean the filter until the humidity value detected by the humidity sensor is greater than the set humidity value.

[0124] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air conditioner filter dirty blockage detection device, characterized in that: include: A spray module, which is used to spray atomized droplets toward the windward side of the filter; A detection module, which is used to detect the amount of droplets passing through the filter; The control module determines whether the filter is dirty or clogged according to the amount of droplets detected by the detection module, and issues a prompt when it is determined that the filter is dirty or clogged.

2. The air conditioner filter dirty blockage detection device according to claim 1, characterized in that: The detection module includes a humidity sensor disposed on the leeward side of the filter; the detection of the amount of droplets passing through the filter specifically includes: the humidity sensor detecting the humidity value; The method of judging whether the filter screen is dirty or blocked according to the amount of liquid droplets detected by the detection module specifically includes: judging whether the filter screen is dirty or blocked according to the humidity value detected by the humidity sensor: When the humidity value detected by the humidity sensor is less than or equal to the set humidity value, it is determined that the filter is dirty and blocked; When the humidity value detected by the humidity sensor is greater than the set humidity value, it is determined that the filter is not dirty or clogged.

3. The air conditioner filter dirty blockage detection device according to claim 1, characterized in that: The detection module includes a plurality of humidity sensors arranged on the leeward side of the filter; the detection of the amount of droplets passing through the filter specifically includes: the plurality of humidity sensors respectively detecting humidity values; The method of judging whether the filter screen is dirty or blocked according to the amount of liquid detected by the detection module specifically includes: judging whether the filter screen is dirty or blocked according to the humidity values ​​detected by the plurality of humidity sensors: When the humidity value detected by the humidity sensor that exceeds the set ratio is less than or equal to the set humidity value, it is determined that the filter is dirty and clogged; When the humidity value detected by the humidity sensor that does not exceed the set ratio is less than or equal to the set humidity value, it is determined that the filter is not dirty or blocked.

4. The air conditioner filter dirty blockage detection device according to claim 3, characterized in that: The plurality of humidity sensors are arranged in a matrix.

5. The air conditioner filter dirty blockage detection device according to claim 4, characterized in that: The plurality of humidity sensors are directly mounted on the filter screen; Alternatively, the detection module further includes a fixed frame, the plurality of humidity sensors are mounted in the fixed frame, and the fixed frame is detachably connected to a frame of the filter.

6. The air conditioner filter dirty blockage detection device according to claim 1, characterized in that: The injection modules are provided in plurality and are arranged in an array.

7. The air conditioner filter dirty blockage detection device according to any one of claims 1 to 6, characterized in that: The filter is installed at the return air outlet of the indoor unit of the air conditioner; The detection module is installed on the leeward side of the filter; The injection module is installed on the back of the panel of the indoor unit of the air conditioner, facing the windward side of the filter.

8. A method for detecting dirty or blocked air conditioner filters, characterized in that: include: Spray atomized droplets onto the windward side of the filter; The amount of droplets passing through the filter determines whether the filter is dirty or clogged, and a prompt is issued when the filter is determined to be dirty or clogged.

9. The method for detecting dirty or blocked air conditioner filters according to claim 8, characterized in that: The method of judging whether the filter is dirty or blocked according to the amount of droplets passing through the filter specifically includes: The humidity value is detected by using a humidity sensor arranged on the leeward side of the filter; Determine whether the filter is dirty or blocked based on the humidity value detected by the humidity sensor: When the humidity value detected by the humidity sensor is less than or equal to the set humidity value, it is determined that the filter is dirty and blocked; When the humidity value detected by the humidity sensor is greater than the set humidity value, it is determined that the filter is not dirty or clogged.

10. The method for detecting dirty or blocked air conditioner filters according to claim 8, characterized in that: The method of judging whether the filter is dirty or blocked according to the amount of droplets passing through the filter specifically includes: Utilize multiple humidity sensors arranged on the leeward side of the filter to detect humidity values ​​respectively; Determine whether the humidity value detected by the humidity sensor that exceeds the set ratio is less than or equal to the set humidity value; If so, it is determined that the filter is dirty and clogged; If not, it is determined that the filter is not dirty or blocked.

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