An automotive air-conditioning filter element sensor assembly and its working method

Abstract

The present invention discloses an automotive air-conditioning filter sensor assembly, which relates to the technical field of automotive sensors and includes a support assembly, an air intake assembly, an air flow detection assembly, and an exhaust assembly. The present invention also discloses a working method for an automotive air-conditioning filter sensor assembly, which includes the following steps: equipment installation, air flow detection, data comparison, and air quality detection. By setting the support assembly, the air intake assembly and the exhaust assembly are respectively arranged at both ends of the support assembly, and the air flow detection assembly is arranged in the middle of the air intake assembly. When air passes through the air intake assembly, the air flow detection assembly can judge the air flow rate and temperature through the movable column and displacement sensor arranged inside the air intake assembly, so as to realize the detection of air flow; and the air-conditioning filter can also be automatically cleaned.

Description

Technical Field

[0001] The invention relates to the technical field of automobile sensors, and in particular to an automobile air-conditioning filter element sensor component and a working method thereof. Background Art

[0002] The air filter is a filter that is mainly used for air filtration in engineering locomotives, automobiles, and agricultural locomotives. It is usually installed in front of the carburetor or the intake pipe to filter out dust and sand in the air to ensure that sufficient and clean air enters the cylinder. However, with long-term use, the air filter often becomes clogged. Currently, there is no equipment specifically designed to monitor the clogging of the air filter, or the existing air filter sensors are not convenient to be directly installed on the air filter due to their large size and complex structure. At the same time, they only have a single alarm function, and often cannot detect the clogging of the air filter in time.

[0003] The invention discloses an integrated sensor air filter assembly with the publication number CN219246732U, comprising an air filter housing, a flow sensor assembly platform and a pressure loss sensor assembly platform on an air outlet pipe of the air filter housing, the flow sensor assembly platform and the pressure loss sensor assembly platform respectively being provided with a flow sensor interface and a pressure loss sensor interface connected with the air outlet pipe, two first connecting columns being provided on the outer side of the flow sensor assembly platform, the first connecting columns being provided with a first screw hole, and the pressure loss sensor assembly platform being provided with a second screw hole, by integrating the flow sensor, the pressure loss sensor and the air filter housing into a design and arrangement, arranging the flow sensor and the pressure loss sensor on the air filter assembly, abandoning the rigid connection between the air filter assembly and the air flow meter through a pipeline, thereby achieving an integrated multi-purpose effect.

[0004] When the sensor detects the air flow passing through the air conditioning filter, it frequently comes into contact with the air. Impurities in the air affect the sensor contacts, shortening their service life. Moreover, the detection content of a single sensor is limited, making it difficult to achieve multi-directional monitoring of the air conditioning filter.

[0005] Therefore, it is necessary to invent an automobile air conditioning filter element sensor assembly and a working method thereof to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide an automobile air conditioning filter element sensor assembly and a working method thereof to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: an automobile air conditioning filter element sensor assembly, comprising:

[0008] A support assembly, comprising a support seat, both ends of which are fixedly provided with fixing pipes;

[0009] An air intake assembly, comprising an air intake pipe;

[0010] An airflow detection component, comprising a mounting tube, a first pressure sensor is arranged at the internal top end of the mounting tube, a movable seat is arranged correspondingly below the signal input end of the first pressure sensor, a plurality of support rods are arranged around the lower surface of the movable seat, a movable column is fixedly arranged at the bottom end of the support rod, and the movable column is arranged inside the intake pipe; an extension sleeve is fixedly arranged at the top end of the movable column, a piston head is arranged inside the extension sleeve, a column rod is fixedly arranged on the upper surface of the piston head, and the column rod is arranged through the middle part of the extension sleeve, a second pressure sensor is arranged at the top end of the column rod, a support is fixedly arranged at the bottom end of the second pressure sensor, and the support is fixedly arranged above the extension sleeve;

[0011] An exhaust assembly, comprising an exhaust pipe, wherein the exhaust pipe is configured as a three-way pipe, both ends of the exhaust pipe are fixedly provided with connection nozzles, the top of the exhaust pipe is fixedly provided with an exhaust nozzle, the tops of both sides of the exhaust pipe are penetrated with sockets, the inside of the socket is provided with plug blocks through threads, and the middle parts of the two plug blocks are respectively fixedly provided with a laser transmitter and a laser receiver;

[0012] By controlling the movable column to be located at a first height position, various air parameters can be measured; by controlling the movable column to be located at a second height position, the laser transmitter and the laser receiver can be cleaned; by controlling the movable column to be located at a third height position, the air conditioning filter element can be cleaned.

[0013] Preferably, the air intake pipe is configured as a three-way pipe, connecting pipes are fixedly provided at both ends of the air intake pipe, and the top of the connecting pipe is threadedly connected to the connecting seat, an air intake nozzle is fixedly provided at the bottom end of the air intake pipe, and a fixing seat is penetrated through the middle of the air intake pipe.

[0014] Preferably, the movable column is configured as a hollow structure, and expansion oil is provided inside the movable column, a heat conducting block is provided through the bottom end of the movable column, and the bottom end of the heat conducting block is provided inside the air intake pipe.

[0015] Preferably, the bottom end of the heat conductive block is set as a spherical surface, and a plurality of air guide grooves are arranged around the lower surface of the heat conductive block, and the air guide grooves are arranged as an arc structure, and a plurality of heat conductive rods are fixedly arranged on the upper surface of the heat conductive block, and the heat conductive rods are arranged inside the movable column.

[0016] Preferably, the second height position is higher than the first height position, and the third height position is lower than the first height position.

[0017] Preferably, a mounting cover is fixedly provided on the top of the mounting tube, a plurality of adjusting screws are penetrated through the lower surface of the mounting cover, an adjusting seat is fixedly provided on the bottom end of the first pressure sensor, a plurality of screw holes are penetrated through the upper surface of the adjusting seat, and the screw holes correspond to the adjusting screws, an adjusting gear is fixedly provided on the top of the adjusting screw, a driving gear is provided between the plurality of adjusting gears, and the driving gear is provided inside the mounting cover, an adjusting portion is fixedly provided on the middle portion of the upper surface of the driving gear, and the adjusting portion is provided above the mounting cover.

[0018] Preferably, blowing holes are provided through the inner curved surface of the exhaust pipe, and the blowing holes are arranged at an angle, and the inclination direction is facing the laser transmitter and the laser receiver in the plug block; the blowing holes are connected to the blowing pipe, and the lower end of the blowing pipe is connected to the air inlet hole on the pipeline below the fixed seat, and the air inlet hole is connected to the inside of the pipeline below the fixed seat.

[0019] Preferably, both ends of the fixed tube are provided with connecting seats movably through bearings, a central control panel is fixedly provided in the middle of the outer side of the support seat, and a communication interface is provided at the bottom end of the central control panel.

[0020] Preferably, an observation window is provided through the middle portion of the outer side of the air inlet pipe.

[0021] A working method of an automobile air conditioning filter element sensor assembly comprises the following steps:

[0022] Step 1: Equipment installation: install two sets of sensor components in the pipeline of the automobile air conditioner, and install the two sets of sensor components at both ends of the automobile air conditioner filter element respectively;

[0023] Step 2: Airflow detection: the air first passes through a set of sensor components, which detect the air flow rate. Then, the air passes through the car air conditioning filter and reaches another set of sensor components, which detects the air flow rate again.

[0024] Step 3: Data comparison: By comparing the detection data of the two sets of sensor components, the blockage status of the air conditioning filter can be obtained. The data comparison results are transmitted to the car central control through the data wire. When the difference between the two sets of data is large, the car air conditioning filter is seriously blocked, and the filter self-cleaning function is activated;

[0025] Step 4: Air quality detection. When the air passes through the sensor assembly, the laser transmitter and laser receiver in the sensor assembly cooperate to detect the air quality and transmit the air quality detection data to the car's central control. The air quality detection data can be used as an auxiliary judgment of the blockage condition of the air conditioning filter.

[0026] Technical effects and advantages of the present invention:

[0027] 1. The present invention provides a support assembly, and an air intake assembly and an exhaust assembly are respectively provided at both ends of the support assembly. An airflow detection assembly is provided in the middle of the air intake assembly. When air passes through the air intake assembly, the airflow detection assembly can judge the amount of airflow through the movable column and the first pressure sensor provided inside the air intake assembly, thereby realizing the detection of air flow.

[0028] 2. The present invention provides an airflow detection component, which includes a movable column. The air flow rate can be detected by the movement amplitude of the movable column. By arranging expansion oil inside the movable column, the heat of the air can be transferred to the expansion oil when passing through the bottom end of the movable column, so that the expansion oil expands due to the heat, and the expansion amplitude of the expansion oil can be detected by a second pressure sensor, thereby realizing real-time monitoring of the air temperature while realizing air flow detection.

[0029] 3. The present invention provides a support assembly, an air intake assembly and an exhaust assembly, which together form an air detection device. The two sets of detection devices can be respectively installed on the pipelines on both sides of the air-conditioning filter element to detect the air flow and quality before and after the air-conditioning filter element. At the same time, the adjustment part drives the first pressure sensor to the second height position through the driving gear, the adjusting gear and the adjusting screw, so that the flowing air can enter the blowing pipe through the blowing hole and be blown out from the blowing hole along the blowing pipe. Since the inclination direction of the blowing hole is directly facing the laser transmitter and the laser receiver in the plug block, the dust accumulated above the two can be blown off, thereby cleaning the two, thereby ensuring the accuracy of air quality measurement in subsequent use.

[0030] 4. The present invention enables the adjustment part to drive the first pressure sensor to the third height position through the driving gear, the adjusting gear, and the adjusting screw, so that the movable column can maintain the seal on the air inlet nozzle, and the air cannot be discharged through the air inlet nozzle, so that the air pressure at the filter element is greater than the pressure during normal operation, and then the adjustment part is controlled to drive the first pressure sensor to the first height position, and the pressurized air pushes the movable column to move upward. The movable column no longer seals the air inlet nozzle, and the high-pressure air flow gathered at the air-conditioning filter element completes the pressure relief. In this process, the high-pressure air flow can clean the clogged air-conditioning filter element to a certain extent when passing through the air-conditioning filter element, thereby ensuring the subsequent use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0032] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention.

[0033] Figure 3 It is a diagram of the air flow trajectory inside the overall structure of the present invention.

[0034] Figure 4 It is a schematic diagram of the structure of the air intake assembly and the airflow detection assembly of the present invention.

[0035] Figure 5 It is a schematic diagram of the structure of the air intake assembly of the present invention.

[0036] Figure 6 It is a schematic diagram of the structure of the airflow detection component of the present invention.

[0037] Figure 7 It is a schematic cross-sectional view of the airflow detection assembly structure of the present invention.

[0038] Figure 8 It is a schematic diagram of the positions of the first pressure sensor and the second pressure sensor of the present invention.

[0039] Fig. 9 It is a schematic diagram of the support assembly structure of the present invention.

[0040] Fig.10 It is a schematic diagram of the exhaust assembly structure of the present invention.

[0041] In the figure: 1, support assembly; 2, air intake assembly; 3, air flow detection assembly; 4, exhaust assembly; 101, support seat; 102, fixed pipe; 103, connecting seat; 104, central control panel; 201, air intake pipe; 202, connecting pipe; 203, air intake nozzle; 204, fixed seat; 205, observation window; 301, installation pipe; 302, first pressure sensor; 303, movable seat; 304, support rod; 305, movable column; 306, heat conduction block; 307, air guide groove; 30 8. Heat-conducting rod; 309. Extension sleeve; 310. Piston head; 311. Column rod; 312. Second pressure sensor; 313. Support; 314. Mounting cover; 315. Adjusting screw; 316. Adjusting seat; 317. Screw hole; 318. Adjusting gear; 319. Driving gear; 320. Adjusting part; 401. Exhaust pipe; 402. Connecting nozzle; 403. Exhaust nozzle; 404. Socket; 405. Insert block; 406. Blowing hole; 407. Blowing pipe; 408. Air inlet. DETAILED DESCRIPTION

[0042] 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 the present invention.

[0043] Embodiment 1

[0044] The present invention provides Figures 1 to 10 An automobile air conditioning filter sensor assembly shown includes a support assembly 1, an air intake assembly 2, an air flow detection assembly 3 and an exhaust assembly 4. The air intake assembly 2 and the exhaust assembly 4 are respectively arranged at two ends of the support assembly 1, and the air flow detection assembly 3 is arranged in the middle of the air intake assembly 2.

[0045] Specifically, the support assembly 1 includes a support seat 101, both ends of the support seat 101 are fixedly provided with fixed tubes 102, and both ends of the fixed tube 102 are movably provided with connecting seats 103 through bearings; a central control panel 104 is fixedly provided in the middle of the outer side of the support seat 101, and a communication interface is provided at the bottom of the central control panel 104. The central control panel 104 can collect data from the first pressure sensor 302, the second pressure sensor 312 and the laser receiver, and transmit the data to the car center console, and then display the data measured by the sensor, so that the driver and passengers can understand the air quality of the air conditioner in real time.

[0046] The air intake assembly 2 includes an air intake pipe 201, which is configured as a three-way pipe. Connecting pipes 202 are fixedly provided at both ends of the air intake pipe 201, and the top of the connecting pipe 202 is threadedly connected to the connecting seat 103. An air intake nozzle 203 is fixedly provided at the bottom end of the air intake pipe 201, and a fixing seat 204 is penetrated through the middle part of the air intake pipe 201; an observation window 205 is penetrated through the middle part of the outer side of the air intake pipe 201, and the setting of the observation window 205 facilitates observation and determination of the position of the movable column 305 during maintenance.

[0047] The airflow detection assembly 3 includes a mounting tube 301, and the mounting tube 301 is threadedly connected to the top of the fixed seat 204. Specifically, a first pressure sensor 302 is arranged at the top of the inner part of the mounting tube 301, and a movable seat 303 is arranged correspondingly below the signal input end of the first pressure sensor 302. A plurality of support rods 304 are arranged around the lower surface of the movable seat 303, and a movable column 305 is fixedly arranged at the bottom end of the support rod 304, and the movable column 305 is arranged inside the air intake pipe 201.

[0048] More specifically, the movable column 305 is configured as a hollow structure, and expansion oil is disposed inside the movable column 305. A heat conducting block 306 is disposed through the bottom end of the movable column 305, and the bottom end of the heat conducting block 306 is disposed inside the air intake pipe 201. In addition, the bottom end of the heat conducting block 306 is configured as a spherical surface, and a plurality of air guiding grooves 307 are disposed around the lower surface of the heat conducting block 306, and the air guiding grooves 307 are configured as an arc structure. The configuration of the air guiding grooves 307 increases the contact area between the air and the heat conducting block 306, thereby improving the heat transfer efficiency. A plurality of heat conducting rods 308 are fixedly disposed on the upper surface of the heat conducting block 306, and the heat conducting rods 308 are disposed inside the movable column 305. The configuration of the heat conducting rods 308 increases the heat conduction efficiency between the heat conducting block 306 and the expansion oil.

[0049] Specifically, an extension sleeve 309 is fixedly provided on the top of the movable column 305, a piston head 310 is provided inside the extension sleeve 309, a column rod 311 is fixedly provided on the upper surface of the piston head 310, and the column rod 311 is penetrated through the middle of the extension sleeve 309, a second pressure sensor 312 is provided on the top of the column rod 311, a support 313 is fixedly provided on the bottom end of the second pressure sensor 312, and the support 313 is fixedly provided above the extension sleeve 309, and the support 313 can support and fix the second pressure sensor 312.

[0050] At the same time, a mounting cover 314 is fixedly provided on the top of the mounting tube 301, and a plurality of adjusting screws 315 are penetrated through the lower surface of the mounting cover 314. An adjusting seat 316 is fixedly provided on the outer periphery of the first pressure sensor 302, and a plurality of screw holes 317 are penetrated through the upper surface of the adjusting seat 316, and the screw holes 317 correspond to the adjusting screws 315. An adjusting gear 318 is fixedly provided on the top of the adjusting screw 315, and a driving gear 319 is provided between the plurality of adjusting gears 318, and the driving gear 319 is provided inside the mounting cover 314. An adjusting portion 320 is fixedly provided on the middle portion of the upper surface of the driving gear 319, and the adjusting portion 320 is provided above the mounting cover 314. Specifically, the adjustment part 320 is configured as a stepping motor and can be connected to an external control device, so that the adjustment part 320 can be precisely controlled, and the driving gear 319 and the adjustment gear 318 can be adjusted to rotate through the adjustment part 320, thereby driving the adjustment screw 315 to rotate, and the adjustment screw 315 cooperates with the screw hole 317 to make the adjustment seat 316 move up and down, and the adjustment seat 316 can drive the first pressure sensor 302 to move, so as to adjust the initial position of the movable column 305. On the one hand, it is convenient to calibrate it, and on the other hand, the height position of the movable column 305 can be adjusted to enable the movable column 305 to achieve different functions.

[0051] The exhaust assembly 4 includes an exhaust pipe 401, which is configured as a three-way pipe. Both ends of the exhaust pipe 401 are fixedly provided with connection nozzles 402, and the bottom end of the connection nozzle 402 is threadedly connected to the connection seat 103. The top of the exhaust pipe 401 is fixedly provided with an exhaust nozzle 403, and the exhaust nozzle 403 can realize the exhaust of air. The tops of both sides of the exhaust pipe 401 are penetrated with sockets 404, and the inside of the socket 404 is provided with plug blocks 405 through threads. The middle of the two plug blocks 405 are respectively fixed with a laser transmitter and a laser receiver. When the air passes through the exhaust pipe 401, the laser transmitter emits a laser, and the laser reaches the laser receiver after passing through the air. In the process of passing through the air, the laser is affected by impurities in the air and attenuated. By comparing the attenuation of the laser, the air quality can be detected. Moreover, the two plug blocks 405 are arranged at the arc-shaped bend of the exhaust pipe 401. The airflow passing through the arc-shaped bend of the exhaust pipe 401 is guided and discharged at the arc-shaped bend and will not directly impact the laser emitter and laser receiver in the middle of the plug block 405, so as to prevent the airflow from impacting the laser emitter and laser receiver during long-term use and affecting the measurement accuracy of both.

[0052] The present invention also provides a working method of an automobile air conditioning filter element sensor assembly, comprising the following steps:

[0053] Step 1, equipment installation, install two sets of sensor components in the pipeline of the automobile air-conditioning, and make the two sets of sensor components be installed at the two ends of the automobile air-conditioning filter respectively; specifically, when installing the sensor components, the sensor components can be set as two groups, one group is installed at the front end of the air-conditioning filter, and the other group is installed at the rear end of the air-conditioning filter. The air inlet nozzle 203 and the exhaust nozzle 403 are respectively connected to the air-conditioning pipeline, so that the air in the air-conditioning pipeline passes through the air inlet nozzle 203 to enter the sensor component, and flows back to the pipeline through the exhaust nozzle 403. The two sets of sensor components can respectively detect the air before and after passing through the air-conditioning filter, and transmit the detected data to the center console, so that the driver and passengers can understand the air quality.

[0054] Step 2, airflow detection, the air first passes through a set of sensor components, the sensor components detect the flow rate of the air, and then the air passes through the automobile air conditioning filter to reach another set of sensor components, at this time the other set of sensor components detects the flow rate of the air again; the air can enter the intake pipe 201 through the intake nozzle 203, and during the air flow inside the intake pipe 201, the air pushes the bottom end of the movable column 305, so that the movable column 305 moves upward, and it squeezes the signal input end of the first pressure sensor 302 through the support rod 304 and the movable seat 303. The first pressure sensor 302 detects the pressure value of the movable column 305, and then converts it into the corresponding air flow rate according to the pressure value, so as to realize the detection of the air flow. After the movable column 305 moves upward, the air flows through the gap between the movable column 305 and the intake pipe 201 and is discharged.

[0055] At the same time, when the air passes through the bottom end of the movable column 305, heat exchange occurs between the air and the lower surface of the heat conductive block 306, and the heat is transferred to the expansion oil in the movable column 305 through the heat conductive block 306 and the heat conductive rod 308, so that the expansion oil expands due to the heat, and the expansion of the expansion oil squeezes the piston head 310. The piston head 310 squeezes the signal input end of the second pressure sensor 312 through the column rod 311 to detect the expansion amount of the expansion oil. By converting the pressure value of the second pressure sensor 312 into a corresponding temperature value, the air temperature can be detected.

[0056] Step three, data comparison, by comparing the detection data of the two sets of sensor components, while obtaining the air quality, the blockage condition of the air conditioning filter can also be obtained. The data comparison results are transmitted to the car's central control through the data wire. When the gap between the two sets of data is large, it means that the car's air conditioning filter is seriously blocked. At this time, the car starts the filter self-cleaning function or reminds the driver and passengers to replace the air conditioning filter.

[0057] Step 4: Air quality detection. When the air passes through the device, the laser transmitter and laser receiver in the device cooperate to detect the air quality and transmit the air quality detection data to the central control of the car. At the same time, the air quality detection data is used as an auxiliary judgment of the blockage of the air conditioning filter. When the air passes through the exhaust pipe 401, the laser transmitter emits a laser, which passes through the air and reaches the laser receiver. In the process of passing through the air, the laser is affected by impurities in the air and attenuated. By comparing the attenuation of the laser, the air quality can be detected.

[0058] Embodiment 2

[0059] In the above embodiment, the air quality is mainly detected by emitting lasers by the laser transmitters in the two plug-ins 405 and receiving lasers by the laser receivers, and then according to the attenuation degree of the laser signal. Therefore, the accuracy of the air quality detection data depends on the accuracy of the laser transmitters in the two plug-ins 405 emitting lasers and the laser receivers receiving lasers. During the long-term use of the device, since there are dust particles in the air flowing in the exhaust pipe 401, and since the plug-in 405 is located at the arc-shaped bend of the exhaust pipe 401, the air will slow down when flowing through here, and the dust particles will also be thrown to the plug-in 405 under a certain centrifugal force, causing the dust to easily gather on the surface of the laser transmitter and laser receiver in the plug-in 405, thereby affecting the accuracy of the laser transmitter and laser receiver in measuring the air quality. In particular, when the device is used at the front end of the air conditioning filter, it is more affected by the above factors than when it is used at the rear end of the air conditioning filter. Therefore, when the device is used, it is necessary to consider solving the above problems.

[0060] Specifically, Figure 3 As shown, air holes 406 are provided through the inner curved surfaces of the exhaust pipes 401 on both sides, and the air holes 406 are arranged at an angle, and the inclination direction faces the laser transmitter and the laser receiver in the plug block 405. The air holes 406 are connected to the air blowing pipe 407, and the lower end of the air blowing pipe 407 is connected to the air inlet hole 408 on the pipeline below the fixing seat 204, and the air inlet hole 408 is connected to the inside of the pipeline below the fixing seat 204.

[0061] During the air quality detection process, the adjusting part 320 is controlled so that the adjusting part 320 drives the first pressure sensor 302 to the first height position through the driving gear 319, the adjusting gear 318, and the adjusting screw 315. When the first pressure sensor 302 is at the first height position, it is used to measure the air flow rate. During the measurement, the movable column 305 can form a blockage to the air inlet 408 during the up and down movement, and the flowing air will not pass through the air inlet 408 and the blowing pipe 407.

[0062] After the device has been working for a long time, when the vehicle needs to be maintained, in order to improve the accuracy of air detection, it is necessary to clean the dust collected on the laser emitter and the laser receiver in the two plug-in blocks 405. At this time, by controlling the adjustment part 320, the adjustment part 320 drives the first pressure sensor 302 to the second height position through the driving gear 319, the adjustment gear 318, and the adjustment screw 315. The height of the second height position is higher than the first height position. At this time, after the air conditioner is blown in (generally, the wind force is adjusted to the maximum), the wind pushes the movable column 305 to The movable column 305 can move upward, and the movable column 305 can move to a position above the air inlet hole 408 and no longer block the air inlet hole 408. The flowing air can enter the blowing pipe 407 through the air inlet hole 408 and be blown out from the blowing hole 406 along the blowing pipe 407. Since the inclined direction of the blowing hole 406 is directly facing the laser transmitter and the laser receiver in the plug block 405, the blown gas can blow onto the laser transmitter and the laser receiver, and blow off the dust accumulated on the two, thereby cleaning the two, thereby ensuring the accuracy of the air quality measurement of the two in subsequent use.

[0063] After completing the cleaning of the laser transmitter and the laser receiver, by controlling the adjustment part 320, the adjustment part 320 can accurately drive the first pressure sensor 302 to the first height position, that is, the position for detecting the air quality, through the driving gear 319, the adjusting gear 318, and the adjusting screw 315, and then continue to detect the air quality when the air conditioner is in use.

[0064] Embodiment 3

[0065] When the device is used, in order to accurately measure the quality of the air, two are generally provided, one of which is provided at the front end of the air conditioning filter element, and the other is provided at the rear end of the air conditioning filter element; the one located at the front end of the air conditioning filter element can measure the quality and temperature of the air entering the air conditioning filter element; the measured air is temperature-adjusted and filtered, and then reaches the sensor component provided at the rear end of the air conditioning filter element, which can measure the temperature-adjusted and filtered air; in this way, the air flow rate and quality before and after temperature adjustment and filtration can be obtained, so that the driver and passengers can timely understand the air flow rate and quality parameters.

[0066] After the air conditioning filter has been used for a long time, the front and rear two sensor components can measure the difference in air volume and air quality to determine the filter blockage. Generally speaking, when the difference in front and rear air volume is relatively large and / or the difference in front and rear air quality is not large, it means that the car air conditioning filter is seriously blocked and needs to be cleaned or replaced. For general blockages, the driver and passengers can clean the car air conditioning filter to a certain extent through the following operations.

[0067] In addition, according to the comparison of the measurement results of the front and rear sensor components, when the air conditioning filter is seriously clogged, the air conditioning filter can be replaced in time during vehicle maintenance to ensure the air filtration effect.

[0068] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automotive air conditioning filter element sensor assembly, characterized in that: include: A support assembly (1), comprising a support seat (101), wherein both ends of the support seat (101) are fixedly provided with fixing pipes (102); An air intake assembly (2), comprising an air intake pipe (201); An airflow detection assembly (3) comprises a mounting tube (301), a first pressure sensor (302) being arranged at the top end of the mounting tube (301), a movable seat (303) being arranged below the signal input end of the first pressure sensor (302), a plurality of support rods (304) being arranged around the lower surface of the movable seat (303), a movable column (305) being fixedly arranged at the bottom end of the support rod (304), and the movable column (305) being arranged inside the air intake pipe (201); the movable column (30 5) is fixedly provided with an extension sleeve (309) at the top end, a piston head (310) is provided inside the extension sleeve (309), a column rod (311) is fixedly provided on the upper surface of the piston head (310), and the column rod (311) is provided through the middle part of the extension sleeve (309), a second pressure sensor (312) is provided at the top end of the column rod (311), a support (313) is fixedly provided at the bottom end of the second pressure sensor (312), and the support (313) is fixedly provided above the extension sleeve (309); An exhaust assembly (4), comprising an exhaust pipe (401), the exhaust pipe (401) being configured as a three-way pipe, both ends of the exhaust pipe (401) being fixedly provided with connection nozzles (402), the top end of the exhaust pipe (401) being fixedly provided with an exhaust nozzle (403), both top ends of the exhaust pipe (401) being penetrated by sockets (404), the interior of the socket (404) being provided with an insert (405) through a thread, and the middle parts of the two inserts (405) being fixedly provided with a laser transmitter and a laser receiver respectively; By controlling the movable column (305) to be located at a first height position, various air parameters can be measured; by controlling the movable column (305) to be located at a second height position, a laser transmitter and a laser receiver can be cleaned; and by controlling the movable column (305) to be located at a third height position, an air conditioning filter element can be cleaned.

2. The automotive air conditioning filter element sensor assembly according to claim 1, characterized in that: The air intake pipe (201) is configured as a three-way pipe, connecting pipes (202) are fixedly provided at both ends of the air intake pipe (201), and the top end of the connecting pipe (202) is threadedly connected to the connecting seat (103), an air intake nozzle (203) is fixedly provided at the bottom end of the air intake pipe (201), and a fixing seat (204) is provided through the middle of the air intake pipe (201).

3. The automotive air conditioning filter element sensor assembly according to claim 2, characterized in that: The movable column (305) is configured as a hollow structure, and expansion oil is disposed inside the movable column (305). A heat conducting block (306) is disposed through the bottom end of the movable column (305), and the bottom end of the heat conducting block (306) is disposed inside the air intake pipe (201).

4. The automotive air conditioning filter element sensor assembly according to claim 3, characterized in that: The bottom end of the heat-conducting block (306) is set as a spherical surface, and a plurality of air-conducting grooves (307) are arranged around the lower surface of the heat-conducting block (306), and the air-conducting grooves (307) are arranged as an arc structure. A plurality of heat-conducting rods (308) are fixedly arranged on the upper surface of the heat-conducting block (306), and the heat-conducting rods (308) are arranged inside the movable column (305).

5. The automotive air conditioning filter element sensor assembly according to claim 1, characterized in that: The second height position is higher than the first height position, and the third height position is lower than the first height position.

6. The automotive air conditioning filter element sensor assembly according to claim 4, characterized in that: A mounting cover (314) is fixedly provided at the top end of the mounting tube (301), and a plurality of adjusting screws (315) are penetrated through the lower surface of the mounting cover (314); an adjusting seat (316) is fixedly provided at the bottom end of the first pressure sensor (302), and a plurality of screw holes (317) are penetrated through the upper surface of the adjusting seat (316), and the screw holes (317) correspond to the adjusting screws (315); an adjusting gear (318) is fixedly provided at the top end of the adjusting screw (315), and a driving gear (319) is provided between the plurality of adjusting gears (318), and the driving gear (319) is provided inside the mounting cover (314); an adjusting portion (320) is fixedly provided at the middle portion of the upper surface of the driving gear (319), and the adjusting portion (320) is provided above the mounting cover (314).

7. The automotive air conditioning filter element sensor assembly according to claim 2, characterized in that: The inner curved surface of the exhaust pipe (401) is penetrated by a blowing hole (406), the blowing hole (406) is inclined, and the inclined direction is directly facing the laser transmitter and the laser receiver in the plug block (405); the blowing hole (406) is connected to a blowing pipe (407), the lower end of the blowing pipe (407) is connected to an air inlet hole (408) on the pipeline below the fixing seat (204), and the air inlet hole (408) is connected to the inside of the pipeline below the fixing seat (204).

8. The automotive air conditioning filter element sensor assembly according to claim 1, characterized in that: Both ends of the fixed tube (102) are movably provided with connection seats (103) through bearings, a central control panel (104) is fixedly provided in the middle of the outer side of the support seat (101), and a communication interface is provided at the bottom end of the central control panel (104).

9. The automotive air conditioning filter element sensor assembly according to claim 1, characterized in that: An observation window (205) is provided through the middle portion of the outer side of the air inlet pipe (201).

10. A working method of an automobile air conditioning filter element sensor assembly, the working method being applicable to the automobile air conditioning filter element sensor assembly according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Equipment installation: install two sets of sensor components in the pipeline of the automobile air conditioner, and install the two sets of sensor components at both ends of the automobile air conditioner filter element respectively; Step 2: Airflow detection: the air first passes through a set of sensor components, which detect the air flow rate. Then, the air passes through the car air conditioning filter and reaches another set of sensor components, which detects the air flow rate again. Step 3: Data comparison: By comparing the detection data of the two sets of sensor components, the blockage status of the air conditioning filter can be obtained. The data comparison results are transmitted to the car central control through the data wire. When the difference between the two sets of data is large, the car air conditioning filter is seriously blocked, and the filter self-cleaning function is activated; Step 4: Air quality detection. When the air passes through the sensor assembly, the laser transmitter and laser receiver in the sensor assembly cooperate to detect the air quality and transmit the air quality detection data to the car's central control. The air quality detection data can be used as an auxiliary judgment of the blockage condition of the air conditioning filter.

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