Air filtration detection device and vehicle

Abstract

The utility model discloses an air filtration detection device and a vehicle, relates to the technical field of air filtration, and comprises a shell, a filter element, a resistance sensor, a signal processing unit and a signal transmitting unit. Wherein an air circulation channel is formed in the shell, an air inlet and an air outlet are formed in the shell, the air inlet is used for communicating with the outside, and the air outlet is used for communicating with an engine. And the filter element is arranged in the air circulation channel. The resistance sensor is arranged on the shell and used for detecting air resistance of the filter element, the detection end of the resistance sensor is located in the air circulation channel, and the resistance sensor is located between the filter element and the air outlet. The signal processing unit is installed on the shell and electrically connected with the resistance sensor. And the signal transmitting unit is arranged on the shell and is electrically connected with the signal processing unit. According to the air filtration detection device, the convenience and accuracy of monitoring the use condition of the filter element can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air filtration, in particular to an air filtration detection device and a vehicle. Background Art

[0002] In the prior art, the filter element in the automobile air filter needs to be replaced after being used for a certain period of time. Whether the filter element needs to be replaced is determined by the vehicle's mileage. The judgment on the use of the filter element has a large error, and when the filter element is not replaced in time, it is easy to affect the service life of the engine. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an air filter detection device, which can improve the convenience and accuracy of monitoring the use of the filter element.

[0004] The utility model also provides a vehicle with the air filtering detection device.

[0005] According to the air filtration detection device of the embodiment of the utility model, it includes: a shell, in which an air circulation channel is provided and has an air inlet and an air outlet, the air inlet is used to connect to the outside, and the air outlet is used to connect to the engine; a filter element, the filter element is provided in the air circulation channel; a resistance sensor, the resistance sensor is provided on the shell and is used to detect the air resistance of the filter element, the detection end of the resistance sensor is located in the air circulation channel, and the resistance sensor is located between the filter element and the air outlet; a signal processing unit, the signal processing unit is installed on the shell and is electrically connected to the resistance sensor; a signal transmitting unit, the signal transmitting unit is installed on the shell and is electrically connected to the signal processing unit.

[0006] According to the air filtration detection device of the embodiment of the utility model, under different usage conditions of the filter element, the resistance sensor can detect different data under different air flow resistances, thereby associating the data detected by the resistance sensor with the usage of the filter element. At the same time, the data detected by the resistance sensor can be transmitted to the signal processing unit for processing and converted and sent as a wireless signal through the signal transmitting unit, without the need to set up an additional data line to send the usage of the filter element to the user. The detection result of the resistance sensor can be sent to a remote terminal, so that the user can obtain the usage information of the filter element in real time and remotely, improve the flexibility of monitoring the usage of the filter element, facilitate the user to accurately detect the usage of the filter element and replace it in time, and improve the accuracy of monitoring the usage of the filter element, thereby reducing or avoiding the impact on the service life of the engine. In addition, the signal processing unit and the signal transmitting unit are both connected to the housing, so that the structure of the air filtration detection device is integrated into the housing, improving its integration and facilitating the installation of the air filtration device in the vehicle.

[0007] In some embodiments, the shell is provided with a mounting hole connected to the air circulation channel, and the resistance sensor is assembled in the mounting hole; the signal processing unit and the signal transmitting unit are installed on the outer surface of the shell, and the signal processing unit is connected to the resistance sensor via a data cable.

[0008] Furthermore, the resistance sensor is threadedly connected in the mounting hole.

[0009] Furthermore, a mounting tube is integrally formed on the shell, and the mounting hole is formed on the mounting tube.

[0010] In some embodiments, the signal processing unit is connected to the housing by threads or adhesive, and the signal transmitting unit is connected to the housing by threads or adhesive.

[0011] In some embodiments, the shell includes: a main cylinder body, the filter element is arranged in the main cylinder body, the filter element is cylindrical, an annular cavity is formed between the outer periphery of the filter element and the inner periphery of the main cylinder body, and the space surrounded by the filter element is an inner cavity; an air inlet pipe, the air inlet pipe is connected to the outer periphery of the main cylinder body, the air inlet pipe is connected to the annular cavity; an air outlet pipe, the air outlet pipe is connected to one end of the main cylinder body, the air outlet pipe is connected to the inner cavity, and the resistance sensor is located on the air outlet pipe.

[0012] Furthermore, one end of the air outlet pipe connected to the main cylinder is a curved section, and the resistance sensor is located on the curved section.

[0013] In some embodiments, a closable base is provided at the bottom of the shell.

[0014] Furthermore, an ash discharge port is provided on the base.

[0015] A vehicle according to an embodiment of the utility model comprises the air filter detection device of the above embodiment.

[0016] According to the vehicle of the embodiment of the utility model, by adopting the air filter detection device of the above embodiment, the data obtained by the resistance sensor detection can be associated with the use of the filter element. At the same time, the data obtained by the resistance sensor detection can be transmitted to the signal processing unit for processing and converted and sent as a wireless signal through the signal transmitting unit, without the need to set up an additional data line to send the filter element use to the user. The detection result of the resistance sensor can be sent to a remote terminal, so that the user can obtain the use information of the filter element in real time and remotely, improve the flexibility of monitoring the use of the filter element, facilitate the user to accurately detect the use of the filter element and replace it in time, and improve the accuracy of monitoring the use of the filter element, thereby reducing or avoiding the impact on the service life of the engine. In addition, the signal processing unit and the signal transmitting unit are both connected to the housing, so that the structure of the air filter detection device is integrated into the housing, improving its integration and facilitating the installation of the air filter device in the vehicle.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of an air filtration detection device according to an embodiment of the utility model.

[0019] Reference numerals:

[0020] Air filtration detection device 100,

[0021] Shell 10, air inlet 11, air outlet 12, mounting hole 13, mounting pipe 14, main cylinder 15, air inlet pipe 16, air outlet pipe 17, base 18, ash discharge port 19,

[0022] The resistance sensor 20 , the signal processing unit 30 , and the signal transmitting unit 40 . DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0025] The air filtration detection device 100 and the vehicle according to the embodiment of the present utility model are described below with reference to the accompanying drawings.

[0026] like Figure 1 As shown, the air filtration detection device 100 according to the embodiment of the utility model includes: a housing 10, a filter element (not shown in the figure), a resistance sensor 20, a signal processing unit 30 and a signal transmitting unit 40.

[0027] The housing 10 is provided with an air circulation channel and has an air inlet 11 and an air outlet 12. The air inlet 11 is used to connect to the outside, and the air outlet 12 is used to connect to the engine. The filter element is arranged in the air circulation channel. The resistance sensor 20 is arranged on the housing 10 and is used to detect the air resistance of the filter element. The detection end of the resistance sensor 20 is located in the air circulation channel, and the resistance sensor 20 is located between the filter element and the air outlet 12. The signal processing unit 30 is installed on the housing 10 and is electrically connected to the resistance sensor 20. The signal transmitting unit 40 is installed on the housing 10 and is electrically connected to the signal processing unit 30.

[0028] It can be understood that the air enters the air circulation channel from the air inlet 11, and flows to the air outlet 12 after being filtered by the filter element in the air circulation channel. The resistance sensor 20 is located between the filter element and the air outlet 12, that is, the air flowing to the resistance sensor 20 is the air filtered by the filter element. In addition, as the use time of the filter element increases, the dust and other impurities attached to the filter element gradually increase, resulting in a gradual increase in the resistance of the air flowing through the filter element, thereby reducing the air flow to the resistance sensor 20, that is, the resistance of the resistance sensor 20 from the air flow is reduced.

[0029] Therefore, under different usage conditions of the filter element, the resistance sensor 20 can detect different data under different air flow resistances, thereby associating the data detected by the resistance sensor 20 with the usage of the filter element. At the same time, the data detected by the resistance sensor 20 can be transmitted to the signal processing unit 30 for processing and converted and sent as a wireless signal through the signal transmitting unit 40, without the need to set up an additional data line to send the usage of the filter element to the user. The detection results of the resistance sensor 20 can be sent to a remote terminal, so that the user can obtain the usage information of the filter element in real time and remotely, improve the flexibility of monitoring the usage of the filter element, facilitate users to accurately detect the usage of the filter element and replace it in time, and improve the accuracy of monitoring the usage of the filter element, so as to replace the filter element in time to reduce the impact on the service life of the engine.

[0030] In addition, the signal processing unit 30 and the signal transmitting unit 40 are both connected to the housing 10, so that the structure of the air filtration detection device 100 is integrated into the housing 10, thereby improving its integration and facilitating the installation of the air filtration detection device 100 in the vehicle.

[0031] In the present application, the type of remote terminal is not limited. For example, the remote terminal may be a mobile phone or a vehicle central control computer. The process of associating the detection data of the resistance sensor 20 with the use of the filter element may be performed in the signal processing unit 30 or in the remote terminal.

[0032] Preferably, the remote terminal has a display screen, and the remote terminal displays the usage of the filter element on the display screen through graphic information to facilitate the user to judge the usage of the filter element.

[0033] Preferably, an alarm threshold can be set in the signal processing unit 30 or the remote terminal, and the signal processing unit 30 or the remote terminal is configured to: compare the air resistance value detected by the resistance sensor with the alarm threshold in real time, and when the air resistance value detected by the resistance sensor is lower than the alarm threshold, the signal processing unit 30 or the remote terminal generates and sends a reminder signal. The reminder signal can be output as an image signal or a sound signal in the remote terminal.

[0034] In the present application, there is no limitation on the type of wireless signal transmitted by the signal transmitting unit 40. For example, the signal transmitting unit 40 is interconnected with the remote terminal through Bluetooth or 4G network.

[0035] In some embodiments, Figure 1 As shown, the housing 10 is provided with a mounting hole 13 connected to the air flow channel, and the resistance sensor 20 is assembled in the mounting hole 13. The signal processing unit 30 and the signal transmitting unit 40 are installed on the outer surface of the housing 10, and the signal processing unit 30 is connected to the resistance sensor 20 through a data line.

[0036] Therefore, the arrangement of the resistance sensor 20, the signal processing unit 30 and the signal transmitting unit 40 on the shell 10 will not affect the structure of the shell 10 itself, and can reduce or avoid the additional arrangement of the structure for connecting the resistance sensor 20, the signal processing unit 30 and the signal transmitting unit 40 on the shell 10, thereby reducing the manufacturing cost of the air filtration detection device 100.

[0037] At the same time, the signal processing unit 30 and the signal transmitting unit 40 can be set away from the air circulation channel, thereby reducing or avoiding the interference of the signal processing unit 30 and the signal transmitting unit 40 by the flowing air, and avoiding the air flow in the air circulation channel from being blocked by the signal processing unit 30 and the signal transmitting unit 40, thereby improving the working stability of the signal processing unit 30 and the signal transmitting unit 40 and ensuring the stability of the air flow in the air circulation channel.

[0038] Further, the resistance sensor 20 is threadedly connected in the mounting hole 13 .

[0039] Thus, the resistance sensor 20 can be easily connected to the housing 10 , and the resistance sensor 20 can be detachably connected, so that the resistance sensor 20 can be easily repaired or replaced.

[0040] In addition, the threaded connection can ensure the tightness of the connection of the resistance sensor 20 at the mounting hole 13 , thereby improving the sealing of the mounting hole 13 and reducing or avoiding the risk of air leakage at the mounting hole 13 .

[0041] Furthermore, a mounting tube 14 is integrally formed on the housing 10 , and a mounting hole 13 is formed on the mounting tube 14 .

[0042] Therefore, the resistance sensor 20 is at least partially inserted into the mounting tube 14, so that the mounting tube 14 has a larger contact area with the resistance sensor 20 in the axial direction, thereby improving the stability of the resistance sensor 20 connected to the housing 10, and improving the stability and reliability of the resistance sensor 20 for detecting air flow resistance, that is, improving the detection accuracy of the resistance sensor 20.

[0043] In other embodiments, the resistance sensor 20 is snap-connected to the mounting hole 13 , which can further reduce the difficulty of installing the resistance sensor 20 on the housing 10 .

[0044] Preferably, the resistance sensor 20 is sleeved with a sealing ring, and at least a portion of the sealing ring is pressed between the resistance sensor 20 and the mounting tube 14 .

[0045] In some embodiments, the signal processing unit 30 is connected to the housing 10 by threads or adhesive, and the signal transmitting unit 40 is connected to the housing 10 by threads or adhesive.

[0046] It can be understood that the signal processing unit 30 and the signal transmitting unit 40 are arranged on the shell 10, and the resistance sensor 20, the signal processing unit 30 and the signal transmitting unit 40 are connected in sequence through data lines, and the supporting forces exerted on the resistance sensor 20, the signal processing unit 30 and the signal transmitting unit 40 all come from the shell 10, and the signal processing unit 30 and the signal transmitting unit 40 do not generate supporting forces on other structures, that is, the connection strength requirements of the signal processing unit 30 and the signal transmitting unit 40 on the shell 10 are relatively low, and they only need to satisfy the fixing function of the signal processing unit 30 and the signal transmitting unit 40.

[0047] Therefore, the threaded or adhesive connection method can satisfy the fixing requirements of the signal processing unit 30 and the signal transmitting unit 40 while simplifying the connection operation of the signal processing unit 30 and the signal transmitting unit 40 on the shell 10, and can reduce or avoid the impact on the structure of the shell 10 itself, and can reduce or avoid the adjustment of the structure of the shell 10 itself for the setting of the signal processing unit 30 and the signal transmitting unit 40, thereby reducing the cost of setting the signal processing unit 30 and the signal transmitting unit 40.

[0048] In some embodiments, Figure 1 As shown, the housing 10 includes: a main cylinder 15, an air inlet pipe 16 and an air outlet pipe 17. The filter element is arranged in the main cylinder 15, and the filter element is cylindrical. An annular cavity is formed between the outer periphery of the filter element and the inner periphery of the main cylinder 15, and the space surrounded by the filter element is the inner cavity. The air inlet pipe 16 is connected to the outer periphery of the main cylinder 15, and the air inlet pipe 16 is connected to the annular cavity. The air outlet pipe 17 is connected to one end of the main cylinder 15, and the air outlet pipe 17 is connected to the inner cavity. The resistance sensor 20 is located on the air outlet pipe 17.

[0049] It can be understood that by setting the filter element to be cylindrical, the shape of the filter element can correspond to the shape of the main cylinder 15, so that the outer peripheral surface of the filter element can have a larger area.

[0050] Thus, the air flowing into the annular cavity from the air inlet pipe 16 can flow to the outer peripheral surface of the filter element, so that the filter element can have a larger area for filtering the air, thereby improving the filter element's filtering efficiency of the air. The air filtered by the filter element flows to the inner cavity, and the filtered air in the inner cavity can flow to the outlet pipe 17 and flow to the engine through the outlet port 12.

[0051] The resistance sensor 20 is disposed on the air outlet pipe 17, which can reduce or avoid the space occupied by the resistance sensor 20 in the main cylinder 15, and reduce or avoid the resistance sensor 20 blocking the installation space of the filter element. When air flows in the air outlet pipe 17, the resistance sensor 20 can detect the air flow resistance in the air outlet pipe 17.

[0052] Preferably, the air inlet pipe 16 is connected to the main cylinder body 15 along the tangential direction of the main cylinder body 15, so that when the air in the air inlet pipe 16 flows into the main cylinder body 15, the air can flow more fully along the outer circumference of the filter element, ensuring that the air can flow through the filter element from all positions on the outer circumference of the filter element, so that the filter element can be fully utilized.

[0053] Furthermore, one end of the air outlet pipe 17 connected to the main cylinder 15 is a curved section, and the resistance sensor 20 is located on the curved section.

[0054] As a result, the flow rate of the air flowing from the inner cavity to the outlet pipe 17 in the curved section increases, so that the difference in air flow rate can be increased under different air flow rates, which can improve the detection accuracy of the resistance sensor 20 in the curved section and improve the monitoring accuracy of the air filtration detection device 100 on the use of the filter element.

[0055] In some embodiments, Figure 1 As shown, the bottom of the housing 10 is provided with an openable and closable base 18 .

[0056] It is understandable that after the filter element is used for a long time, it is necessary to replace the filter element. Thus, opening the base 18 at the bottom of the housing 10 can facilitate the replacement operation of the filter element.

[0057] In the present application, there is no limitation on the opening and closing method of the base 18. For example, the base 18 is connected to the bottom of the housing 10 by snap-fitting.

[0058] Furthermore, an ash discharge port 19 is provided on the base 18 .

[0059] It is understandable that during the long-term use of the air filtration detection device 100, impurities such as dust on the filter element are easily scattered to the bottom of the main cylinder 15 and gradually accumulated.

[0060] Therefore, the dust discharge port 19 can be used to discharge the dust scattered in the main cylinder 15 out of the main cylinder 15, thereby reducing the amount of dust that the filter element needs to filter, and is beneficial to increasing the service life of the filter element and reducing the replacement frequency of the filter element.

[0061] In some embodiments, the air inlet 11 is provided with a grid structure, so that the grid structure can block relatively large impurities, thereby reducing or preventing relatively large impurities from entering the air circulation channel and damaging the filter element.

[0062] In the present application, there is no restriction on the type of the grid structure. For example, the grid structure is a grid or a filter.

[0063] The vehicle according to the embodiment of the utility model comprises the air filter detection device 100 of the above embodiment.

[0064] The vehicle of the present application, by adopting the air filter detection device 100 of the above embodiment, can associate the data detected by the resistance sensor 20 with the use of the filter element. At the same time, the data detected by the resistance sensor 20 can be transmitted to the signal processing unit 30 for processing and converted and sent by the signal transmitting unit 40 as a wireless signal, without the need to set up an additional data line to send the use of the filter element to the user. The detection result of the resistance sensor 20 can be sent to a remote terminal, so that the user can obtain the use information of the filter element in real time and remotely, improve the flexibility of monitoring the use of the filter element, facilitate the user to accurately detect the use of the filter element and replace it in time, and improve the accuracy of monitoring the use of the filter element, thereby reducing or avoiding the impact on the service life of the engine. In addition, the signal processing unit 30 and the signal transmitting unit 40 are both connected to the housing 10, so that the structure of the air filter detection device 100 is integrated into the housing 10, improving its integration, and facilitating the installation of the air filter device in the vehicle.

[0065] The air filter detection device 100 and other components and operations of the vehicle according to the embodiment of the utility model are well known to those skilled in the art and will not be described in detail here.

[0066] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element 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 invention.

[0067] In addition, 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 the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0068] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0071] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air filtration detection device, characterized in that: include: A housing (10), wherein an air circulation channel is provided in the housing (10) and has an air inlet (11) and an air outlet (12), wherein the air inlet (11) is used to communicate with the outside, and the air outlet (12) is used to communicate with the engine; A filter element, wherein the filter element is arranged in the air circulation channel; a resistance sensor (20), the resistance sensor (20) being arranged on the housing (10) and used for detecting the air resistance of the filter element, the detection end of the resistance sensor (20) being located in the air circulation channel, and the resistance sensor (20) being located between the filter element and the air outlet (12); a signal processing unit (30), the signal processing unit (30) being mounted on the housing (10) and electrically connected to the resistance sensor (20); A signal transmitting unit (40) is mounted on the housing (10) and is electrically connected to the signal processing unit (30).

2. The air filtration detection device according to claim 1, characterized in that: The housing (10) is provided with a mounting hole (13) communicating with the air circulation channel, and the resistance sensor (20) is mounted in the mounting hole (13); The signal processing unit (30) and the signal transmitting unit (40) are mounted on the outer surface of the housing (10), and the signal processing unit (30) is connected to the resistance sensor (20) via a data line.

3. The air filtration detection device according to claim 2, characterized in that: The resistance sensor (20) is threadedly connected in the mounting hole (13).

4. The air filtration detection device according to claim 3, characterized in that: A mounting tube (14) is integrally formed on the housing (10), and the mounting hole (13) is formed on the mounting tube (14).

5. The air filtration detection device according to claim 1, characterized in that: The signal processing unit (30) is connected to the housing (10) by means of threads or adhesive, and the signal transmitting unit (40) is connected to the housing (10) by means of threads or adhesive.

6. The air filtration detection device according to any one of claims 1 to 5, characterized in that: The housing (10) comprises: A main cylinder (15), wherein the filter element is arranged in the main cylinder (15), the filter element is cylindrical, an annular cavity is formed between the outer periphery of the filter element and the inner periphery of the main cylinder (15), and the space enclosed by the filter element is the inner cavity; An air intake pipe (16), the air intake pipe (16) being connected to the outer periphery of the main cylinder (15), the air intake pipe (16) being in communication with the annular cavity; An air outlet pipe (17), the air outlet pipe (17) is connected to one end of the main cylinder (15), the air outlet pipe (17) is in communication with the inner cavity, and the resistance sensor (20) is located on the air outlet pipe (17).

7. The air filtration detection device according to claim 6, characterized in that: The end of the air outlet pipe (17) connected to the main cylinder (15) is a curved section, and the resistance sensor (20) is located on the curved section.

8. The air filtration detection device according to any one of claims 1 to 5, characterized in that: The bottom of the housing (10) is provided with an openable and closable base (18).

9. The air filtration detection device according to claim 8, characterized in that: The base (18) is provided with an ash discharge port (19).

10. A vehicle, characterized in that: It comprises an air filtration detection device as described in any one of claims 1 to 9.

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