Layered controllable air curtain non-contact window cleaning system

Abstract

This invention discloses a layered, controllable air curtain contactless windshield cleaning system, relating to the field of automotive parts technology. It includes: an antifreeze heating unit comprising a mounting housing with a built-in temperature sensor, one side of which is connected to an air intake manifold; and a layered air guiding mechanism fixedly installed inside the mounting housing. This invention achieves thorough cleaning across the entire area without blind spots through the synergistic effect of an upper air curtain blocking external raindrops and a lower air curtain peeling off attached contaminants. Combined with an independently openable lower sealing component, the lower air passage can be completely sealed during high-speed driving, concentrating airflow to enhance the upper air curtain's resistance to disturbances and prevent air curtain collapse. It also completely replaces mechanical wipers, eliminating inherent defects such as contact wear, obstructed vision, and low-temperature jamming. Furthermore, a vehicle-grade control unit collects real-time data on vehicle speed, rainfall, and temperature, dynamically adjusting the airflow distribution ratio and spray angle.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, specifically to a layered, controllable air curtain contactless windshield cleaning system. Background Technology

[0002] The windshield cleaning system is a core vehicle component that ensures driving safety. Traditional devices mainly include mechanical wipers and early single-layer air curtain cleaning devices. Its core function is to remove raindrops, dust, and fog droplets from the windshield surface in harsh environments such as rain, snow, dust, and fog, so as to keep the driver's forward vision clear. At the same time, it provides a clean detection window for autonomous driving sensors such as forward-facing cameras and lidar in intelligent connected vehicles, ensuring the safety and reliability of vehicle driving and intelligent system operation.

[0003] However, in the actual use of new energy and intelligent connected vehicles under high-speed driving, low-temperature icing, and complex and variable weather conditions, traditional mechanical wipers have inherent defects such as contact wear, blade aging, obstruction of vision, and icing and jamming in low temperatures. Existing single-layer air curtain cleaning devices cannot meet the dual requirements of "blocking external raindrops" and "removing attached pollutants". Under high-speed or strong crosswind conditions, the air curtain is easily dispersed and collapsed, resulting in a significant decrease in cleaning effect and difficulty in ensuring continuous vision. At the same time, existing air curtain systems generally lack multi-condition intelligent adaptive adjustment capabilities, and cannot dynamically adjust airflow parameters according to parameters such as vehicle speed, rainfall, and temperature. They also do not integrate an integrated anti-freeze heating structure, and the nozzles are prone to icing and clogging in low-temperature environments. Furthermore, they are difficult to adapt to the hidden integrated layout requirements of modern car high-curvature windshields and cannot meet the development needs of intelligent vehicles. Summary of the Invention

[0004] This invention provides a layered, controllable air curtain contactless window cleaning system to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A layered, controllable air curtain contactless window cleaning system includes: an antifreeze heating unit comprising a mounting housing with a built-in temperature sensor, one side of which is connected to an air inlet branch pipe; a layered air guiding mechanism fixedly installed inside the mounting housing, comprising a layering component, a lower sealing component, and a flow guiding component, wherein the layering component is located in the middle of the inner cavity of the mounting housing, the lower sealing component is located directly below the layering component, and the flow guiding component is located at the front end of the lower sealing component; a layering component used to change the airflow rate between the upper and lower layers by adjusting the tilt angle, thereby adjusting the cleaning efficiency and anti-disturbance capability; a lower sealing component used to seal the lower air layer, improving the anti-disturbance capability of the upper air layer, and simultaneously controlling the opening and closing of the cleaning function; and a flow guiding component used to guide the upper airflow at the front end of the mounting housing.

[0006] A further improvement of the technical solution of the present invention is that it also includes an adapter component, the adapter component including an upper adapter and a lower adapter, the top of the upper adapter is consistent with the curvature of the bottom of the vehicle body cavity, and the bottom of the lower adapter is consistent with the curvature of the upper end of the windshield.

[0007] A further improvement of the technical solution of the present invention is that: multiple sets of the intake branch pipes are evenly arranged along the length of the mounting housing, an electric heating wire is fixedly connected to the inner wall of the mounting housing, and an exhaust grille is provided at the end of the mounting housing away from the intake branch pipes.

[0008] A further improvement of the technical solution of the present invention is that: the layered component includes a layered partition, a first rotating shaft is fixedly connected inside the layered partition, a first motor is fixedly connected to the end of the first rotating shaft, and the surface of the first motor is fixedly connected to the surface of the mounting housing.

[0009] A further improvement of the technical solution of the present invention is that: the lower enclosure component includes an enclosure plate, a second rotating shaft is fixedly connected inside the enclosure plate, a second motor is fixedly connected to the end of the second rotating shaft, and the surface of the second motor is fixedly connected to the surface of the mounting housing.

[0010] A further improvement of the technical solution of the present invention is that: the flow guiding component includes a flow guiding plate, a third rotating shaft is fixedly connected inside the flow guiding plate, a third motor is fixedly connected to the end of the third rotating shaft, and the surface of the third motor is fixedly connected to the surface of the mounting housing.

[0011] A further improvement of the technical solution of the present invention is that it also includes an automotive-grade control unit, which is electrically connected to the first motor, the second motor, the third motor, the heating wire, and the temperature sensor built into the mounting housing, respectively, for receiving vehicle speed, rain signals and windshield status detection signals transmitted by the vehicle CAN bus, and outputting control commands to drive the various actuators to work together.

[0012] A further improvement of the technical solution of the present invention is that: the layered partition is driven by the first motor to rotate around the first rotating axis in the range of 0°-90°, continuously adjusting the flow distribution ratio of the upper and lower air curtains; the sealing plate is driven by the second motor to rotate around the second rotating axis in the range of 0°-90°, realizing the complete closure, partial opening or complete opening of the lower air curtain, and forming three core working modes in conjunction with the layered partition: single lower layer cleaning, double layer collaborative cleaning and single upper layer wind resistance.

[0013] A further improvement of the technical solution of the present invention is that: the deflector is driven by a third motor to rotate around a third rotating axis within a range of 10°-45°, adjusting the angle between the airflow injection angle and the windshield surface; when the vehicle speed is below 60km / h, the angle is controlled at 10°-20°, and when the vehicle speed is above 60km / h, the angle automatically increases to 25°-45°, so as to enhance the anti-disturbance capability of the air curtain under high-speed conditions.

[0014] A further improvement to the technical solution of this invention lies in the following steps: S1 Condition Sensing: The control unit collects data on ambient temperature, vehicle speed, rainfall level, and windshield surface contamination status in real time; S2 mode decision: Based on the collected multi-dimensional working condition data, the optimal cleaning mode is automatically matched: the heating wire is activated to heat the airflow in low temperature environment, the single lower layer cleaning mode is activated in light rain, the double layer collaborative cleaning mode is activated in medium rain, and the single upper layer wind-resistant mode is activated in high speed. S3 Dynamic Adjustment: The control unit drives the first motor to adjust the tilt angle of the layered partition, the second motor to adjust the opening of the sealing plate, and the third motor to adjust the angle of the guide plate according to the matching mode. S4 Cleaning Execution: The vehicle air supply system is activated, and high-pressure airflow enters the mounting housing through the intake manifold. It forms an air curtain of the corresponding mode through the layered air guiding mechanism and is sprayed from the exhaust grille along the windshield surface to complete the blocking of raindrops and the removal of pollutants. S5 Closed-Loop Verification: The system detects the status of the air vents and provides feedback on the cleaning effect. If the standard is not met, the air curtain pressure and spray angle are dynamically adjusted for a second, precise cleaning. The system automatically shuts down after cleaning is complete.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows: This invention provides a layered, controllable air curtain contactless windshield cleaning system. Through the synergistic effect of an upper air curtain blocking external raindrops and a lower air curtain stripping away attached contaminants, it achieves thorough cleaning across the entire area. Combined with an independently openable and closable lower sealing component, the lower air passage can be completely sealed off at high speeds, concentrating airflow to enhance the upper air curtain's resistance to disturbances and preventing air curtain collapse. It also completely replaces mechanical wipers, eliminating inherent defects such as contact wear, obstructed vision, and low-temperature jamming. Furthermore, a vehicle-grade control unit collects real-time data on vehicle speed, rainfall, and temperature, dynamically adjusting the airflow distribution ratio and spray angle. An integrated anti-freeze heating unit with built-in heating wire effectively prevents icing at low-temperature nozzles. Concealed installation is achieved through adapters with matching upper and lower curvatures, perfectly adapting to the high curvature windshields of modern cars and fully meeting the needs of intelligent connected vehicles. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the installation state structure of the present invention; Figure 3 This is a schematic diagram of the decomposed state structure of the present invention; Figure 4 This is a cross-sectional structural diagram of the present invention; Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 6 For the present invention Figure 4 Enlarged structural diagram at point B; Figure 7 This is a flowchart illustrating the usage of the present invention.

[0017] In the diagram: 11. Upper fitting; 12. Lower fitting; 21. Mounting housing; 22. Intake branch pipe; 23. Heating wire; 24. Exhaust grille; 31. Layered partition; 32. First rotating shaft; 33. First motor; 34. Sealing plate; 35. Second rotating shaft; 36. Second motor; 37. Guide plate; 38. Third rotating shaft; 39. Third motor. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to embodiments: Example 1, as Figures 1-7As shown, this invention provides a layered controllable air curtain contactless window cleaning system, comprising: an antifreeze heating unit, which includes a mounting housing 21 with a built-in temperature sensor, and an air inlet branch pipe 22 connected to one side of the mounting housing 21; a layered air guiding mechanism, which is fixedly installed inside the mounting housing 21 and includes a layering component, a lower sealing component, and a flow guiding component. The layering component is located in the middle of the inner cavity of the mounting housing 21, the lower sealing component is located directly below the layering component, and the flow guiding component is located at the front end of the lower sealing component; the layering component is used to change the airflow of the upper and lower layers by adjusting the tilt angle, thereby adjusting the cleaning efficiency and anti-disturbance capability; the lower sealing component is used to seal the lower air layer, improve the anti-disturbance capability of the upper air layer, and control the opening and closing of the cleaning function; and the flow guiding component is used to guide the upper airflow at the front end of the mounting housing 21.

[0019] It should be noted that: the mounting housing 21 provides a sealed installation space for the system and integrates temperature detection function; the intake manifold 22 is used to introduce high-pressure airflow from the vehicle air supply system; the layered air guiding mechanism is the core carrier for realizing layered air curtain control; the layered component realizes continuous stepless adjustment of the airflow between the upper and lower layers; the lower layer sealing component realizes the opening and closing of the lower layer air passage; and the flow guiding component is used to guide the airflow to adhere to the windshield surface.

[0020] In this embodiment, by integrating antifreeze heating with layered air guiding function, a basic hardware architecture for layered controllable air curtain is constructed, realizing the core functions of air curtain layering, flow distribution and airflow guidance, laying the technical foundation for multi-condition adaptive contactless cleaning.

[0021] Example 2, as Figures 1-7As shown, based on Embodiment 1, the present invention provides a technical solution: preferably, it further includes an adapter component, which includes an upper adapter 11 and a lower adapter 12. The top of the upper adapter 11 is consistent with the curvature of the bottom of the vehicle body cavity, and the bottom of the lower adapter 12 is consistent with the curvature of the upper end of the windshield. Multiple sets of intake manifolds 22 are evenly arranged along the length of the mounting housing 21. Heating wires 23 are fixedly connected to the inner wall of the mounting housing 21. An exhaust grille 24 is provided at the end of the mounting housing 21 away from the intake manifolds 22. The layered component includes a layered partition 31, and a first layer is fixedly connected inside the layered partition 31. A first rotating shaft 32 is fixedly connected to the end of the first rotating shaft 32, and the surface of the first motor 33 is fixedly connected to the surface of the mounting housing 21. A lower enclosure assembly includes a sealing plate 34, and a second rotating shaft 35 is fixedly connected inside the sealing plate 34. A second motor 36 is fixedly connected to the end of the second rotating shaft 35, and the surface of the second motor 36 is fixedly connected to the surface of the mounting housing 21. A flow guiding assembly includes a flow guiding plate 37, and a third rotating shaft 38 is fixedly connected inside the flow guiding plate 37. A third motor 39 is fixedly connected to the end of the third rotating shaft 38, and the surface of the third motor 39 is fixedly connected to the surface of the mounting housing 21. The mounting housing 21 is fixedly connected to the surface and includes an automotive-grade control unit. The control unit is electrically connected to the first motor 33, the second motor 36, the third motor 39, the heating wire 23, and the temperature sensor built into the mounting housing 21. It is used to receive vehicle speed, rainfall signals, and windshield status detection signals transmitted from the vehicle CAN bus, and output control commands to drive the actuators to work together. The layered partition 31 is driven by the first motor 33 to rotate around the first rotating shaft 32 in the range of 0°-90°, continuously adjusting the flow distribution ratio of the upper and lower air curtains; the sealing plate 34 is driven by the second motor 36 to rotate around the first rotating shaft 32 in the range of 0°-90°. The second rotating shaft 35 rotates within the range of 0°-90° to achieve complete closure, partial opening, or complete opening of the lower air curtain. In conjunction with the layered partition 31, it forms three core working modes: single lower layer cleaning, double layer collaborative cleaning, and single upper layer wind resistance. The guide plate 37 is driven by the third motor 39 to rotate around the third rotating shaft 38 within the range of 10°-45° to adjust the angle between the airflow injection angle and the windshield surface. When the vehicle speed is below 60km / h, the angle is controlled at 10°-20°, and when the vehicle speed is above 60km / h, the angle automatically increases to 25°-45° to enhance the air curtain's anti-disturbance capability under high-speed conditions.

[0022] It should be noted that: the upper fitting 11 ensures a sealed fit between the system and the vehicle's internal cavity; the lower fitting 12 ensures a seamless connection between the system and the upper part of the windshield; the heating wire 23 is used to heat the airflow in low-temperature environments to prevent icing at the nozzles and frost on the windshield; the air outlet grille 24 is used to evenly output airflow, forming a continuous and stable air curtain; the layered partition 31 changes its tilt angle by rotating, precisely adjusting the airflow distribution ratio between the upper and lower layers; the first rotating shaft 32 is used to transmit the torque of the first motor 33, driving the layered partition 31 to rotate; the first motor 33 provides the angle adjustment for the layered partition 31. Power; the sealing plate 34 rotates to open and close the lower air passage and adjust its opening degree; the second rotating shaft 35 transmits the torque of the second motor 36 to drive the sealing plate 34 to rotate; the second motor 36 provides power for the opening and closing adjustment of the sealing plate 34; the guide plate 37 rotates to precisely adjust the airflow injection angle; the third rotating shaft 38 transmits the torque of the third motor 39 to drive the guide plate 37 to rotate; the third motor 39 provides power for the angle adjustment of the guide plate 37; the automotive-grade control unit is the core of the system, realizing multi-sensor data fusion and coordinated control of actuators.

[0023] In this embodiment, the upper adapter 11 achieves a sealed and fitted installation between the system and the vehicle's internal cavity; the lower adapter 12 achieves a seamless connection between the system and the upper part of the windshield; the heating wire 23 is used to heat the airflow in low-temperature environments to prevent the nozzles from freezing and the windshield from frosting; the air outlet grille 24 is used to uniformly output airflow, forming a continuous and stable air curtain; the layered partition 31 changes its tilt angle by rotating, precisely adjusting the airflow distribution ratio between the upper and lower layers; the first rotating shaft 32 is used to transmit the torque of the first motor 33, driving the layered partition 31 to rotate; the first motor 33 provides angle adjustment for the layered partition 31. Power is supplied; the sealing plate 34 rotates to open and close the lower air passage and adjust its opening degree; the second rotating shaft 35 transmits the torque of the second motor 36 to drive the sealing plate 34 to rotate; the second motor 36 provides power for the opening and closing adjustment of the sealing plate 34; the guide plate 37 precisely adjusts the airflow injection angle by rotating; the third rotating shaft 38 transmits the torque of the third motor 39 to drive the guide plate 37 to rotate; the third motor 39 provides power for the angle adjustment of the guide plate 37; the automotive-grade control unit is the control core of the system, realizing multi-sensor data fusion and actuator collaborative control.

[0024] Example 3, as Figures 1-7 As shown, based on Embodiment 1, the present invention provides a technical solution: preferably, it includes the following steps: S1 Condition Sensing: The control unit collects data on ambient temperature, vehicle speed, rainfall level, and windshield surface contamination status in real time; S2 mode decision: Based on the collected multi-dimensional working condition data, the optimal cleaning mode is automatically matched: the heating wire 23 is activated to heat the airflow in low temperature environment, the single lower layer cleaning mode is activated in light rain, the double layer collaborative cleaning mode is activated in medium rain, and the single upper layer wind-resistant mode is activated in high speed. S3 Dynamic Adjustment: The control unit drives the first motor 33 to adjust the tilt angle of the layered partition 31, drives the second motor 36 to adjust the opening of the sealing plate 34, and drives the third motor 39 to adjust the angle of the guide plate 37 according to the matching mode. S4 Cleaning Execution: The vehicle air supply system is activated, and the high-pressure airflow enters the mounting housing 21 through the intake manifold 22. It forms an air curtain of the corresponding mode through the layered air guiding mechanism and is sprayed from the exhaust grille 24 along the windshield surface to complete the blocking of raindrops and the removal of pollutants. S5 Closed-Loop Verification: The system detects the status of the air vents and provides feedback on the cleaning effect. If the standard is not met, the air curtain pressure and spray angle are dynamically adjusted for a second, precise cleaning. The system automatically shuts down after cleaning is complete.

[0025] It should be noted that: Step S1 achieves real-time collection of multi-dimensional working condition information to provide data support for intelligent decision-making; Step S2 automatically matches the optimal cleaning mode according to the working conditions, taking into account both cleaning effect and system energy consumption; Step S3 achieves precise coordinated adjustment of each actuator to generate air curtain parameters for the corresponding mode; Step S4 completes the generation and spraying of the air curtain to achieve contactless cleaning of the windshield surface; Step S5 achieves closed-loop control through cleaning effect feedback to ensure the consistency of cleaning quality.

[0026] In this embodiment, through the full-process intelligent control logic of "condition perception - mode decision - dynamic adjustment - cleaning execution - closed-loop verification", adaptive cleaning under different weather conditions and driving conditions is realized. The windshield cleaning can be completed automatically without manual intervention, which greatly improves driving safety and ease of use, and fully meets the automation requirements of intelligent connected vehicles.

[0027] The working principle of this layered controllable air curtain contactless window cleaning system will be explained in detail below.

[0028] like Figures 1-7 As shown, after the system is powered on, the automotive-grade control unit first performs a self-test to confirm that all actuators and sensors are working properly. Subsequently, the control unit collects ambient temperature, driving speed, rainfall level, and windshield surface contamination status data in real time via the vehicle's CAN bus, and enters the condition perception and mode decision-making stage.

[0029] When the ambient temperature is detected to be below 0°C, the control unit automatically activates the heating wire 23 to preheat the airflow entering the mounting housing 21, preventing the air outlet grille 24 from freezing and becoming clogged, and also avoiding frost formation on the windshield surface due to the low-temperature airflow. When light rain is detected, the control unit drives the second motor 36 to fully open the sealing plate 34, drives the first motor 33 to adjust the layered partition 31 to a horizontal position, and simultaneously drives the third motor 39 to adjust the angle of the guide plate 37 to 10°-20°, forming a lower cleaning air curtain close to the windshield surface to remove attached raindrops and dust. When moderate rain is detected, the control unit drives the first motor 33 to adjust the layered partition 31 to a 45° angle, distributing the airflow in a 2:1 ratio to the upper and lower air paths, forming a dual-layer synergistic air curtain: the upper air curtain blocks external raindrops from impacting the windshield, while the lower air curtain removes the attached water film and pollutants, achieving efficient cleaning. When the vehicle speed is detected to be higher than 60km / h, the control unit drives the second motor 36 to completely close the sealing plate 34, cutting off the lower air passage and concentrating all the airflow into the upper air passage. At the same time, it drives the third motor 39 to increase the angle of the guide plate 37 to 25°-45°, forming a high-strength windproof air curtain to resist the interference of high-speed airflow and crosswinds and ensure the stability of the air curtain.

[0030] During the cleaning process, high-pressure airflow enters the mounting housing 21 through multiple evenly arranged intake manifolds 22. The airflow is then cascaded into a corresponding pattern by the tiered air guiding mechanism, and finally evenly sprayed out through the exhaust grille 24, flowing along the windshield surface to complete the cleaning. The control unit verifies the cleaning effect in real time using a forward-facing camera. If any residual dirt is detected, the air curtain pressure and spray angle are dynamically adjusted for a second, precise cleaning. After cleaning is complete, the control unit automatically shuts off the vehicle's air supply system and all actuators, and the system enters standby mode, awaiting the next cleaning command.

[0031] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A layered, controllable air curtain contactless window cleaning system, characterized in that: include: The antifreeze heating unit includes a mounting housing (21) with a built-in temperature sensor, and an air intake branch pipe (22) is connected to one side of the mounting housing (21). A layered air guiding mechanism is fixedly installed inside the mounting housing (21), including a layering component, a lower sealing component and a flow guiding component. The layering component is located in the middle of the inner cavity of the mounting housing (21), the lower sealing component is located directly below the layering component, and the flow guiding component is located at the front end of the lower sealing component. A layered component, wherein the layered component is used to change the airflow rate between the upper and lower layers by adjusting the tilt angle, thereby adjusting the cleaning efficiency and anti-disturbance capability; The lower sealing component is used to seal the lower gas layer, improve the upper gas layer's resistance to disturbance, and control the opening and closing of the cleaning function. A flow guide assembly is used to guide the upper airflow at the front end of the mounting housing (21).

2. The layered controllable air curtain contactless window cleaning system according to claim 1, characterized in that: It also includes an adapter component, which includes an upper adapter (11) and a lower adapter (12). The top of the upper adapter (11) is consistent with the curvature of the bottom of the vehicle body cavity, and the bottom of the lower adapter (12) is consistent with the curvature of the upper end of the windshield.

3. The layered controllable air curtain contactless window cleaning system according to claim 1, characterized in that: Multiple sets of intake branch pipes (22) are evenly arranged along the length of the mounting housing (21). The inner wall of the mounting housing (21) is fixedly connected with heating wires (23). An exhaust grille (24) is provided at the end of the mounting housing (21) away from the intake branch pipes (22).

4. The layered controllable air curtain contactless window cleaning system according to claim 1, characterized in that: The layered assembly includes a layered partition (31), a first rotating shaft (32) is fixedly connected inside the layered partition (31), a first motor (33) is fixedly connected to the end of the first rotating shaft (32), and the surface of the first motor (33) is fixedly connected to the surface of the mounting housing (21).

5. The layered controllable air curtain contactless window cleaning system according to claim 1, characterized in that: The lower enclosure assembly includes an enclosure plate (34), a second rotating shaft (35) is fixedly connected inside the enclosure plate (34), a second motor (36) is fixedly connected to the end of the second rotating shaft (35), and the surface of the second motor (36) is fixedly connected to the surface of the mounting housing (21).

6. The layered controllable air curtain contactless window cleaning system according to claim 1, characterized in that: The flow guiding assembly includes a flow guiding plate (37), a third rotating shaft (38) is fixedly connected inside the flow guiding plate (37), a third motor (39) is fixedly connected to the end of the third rotating shaft (38), and the surface of the third motor (39) is fixedly connected to the surface of the mounting housing (21).

7. The layered controllable air curtain contactless window cleaning system according to claim 1, characterized in that: It also includes an automotive-grade control unit, which is electrically connected to the first motor (33), the second motor (36), the third motor (39), the heating wire (23), and the temperature sensor built into the mounting housing (21), respectively, to receive vehicle speed, rain signals and windshield status detection signals transmitted by the vehicle CAN bus, and output control commands to drive the actuators to work together.

8. The layered controllable air curtain contactless window cleaning system according to claim 1, characterized in that: The layered partition (31) is driven by the first motor (33) to rotate around the first rotating shaft (32) in the range of 0°-90°, continuously adjusting the flow distribution ratio of the upper and lower air curtains; the sealing plate (34) is driven by the second motor (36) to rotate around the second rotating shaft (35) in the range of 0°-90°, realizing the complete closure, partial opening or complete opening of the lower air curtain, and forming three core working modes with the layered partition (31): single lower layer cleaning, double layer collaborative cleaning and single upper layer wind resistance.

9. A layered controllable air curtain contactless window cleaning system according to claim 1, characterized in that: The deflector (37) is driven by the third motor (39) to rotate around the third rotating shaft (38) in the range of 10°-45°, adjusting the angle between the airflow injection angle and the windshield surface; when the vehicle speed is below 60km / h, the angle is controlled at 10°-20°, and when the vehicle speed is above 60km / h, the angle automatically increases to 25°-45° to enhance the anti-disturbance capability of the air curtain under high-speed conditions.

10. A layered controllable air curtain contactless window cleaning system according to claim 1, characterized in that: Includes the following steps: S1 Condition Sensing: The control unit collects data on ambient temperature, vehicle speed, rainfall level, and windshield surface contamination status in real time; S2 mode decision: Based on the collected multi-dimensional working condition data, the optimal cleaning mode is automatically matched: the heating wire (23) is activated to heat the airflow in low temperature environment, the single lower layer cleaning mode is activated in light rain condition, the double layer collaborative cleaning mode is activated in medium rain condition, and the single upper layer wind-resistant mode is activated in high speed condition. S3 Dynamic Adjustment: The control unit drives the first motor (33) to adjust the tilt angle of the layered partition (31), drives the second motor (36) to adjust the opening of the sealing plate (34), and drives the third motor (39) to adjust the angle of the guide plate (37) according to the matching mode. S4 Cleaning Execution: Start the vehicle air supply system, and the high-pressure airflow enters the mounting housing (21) through the intake manifold (22). It forms an air curtain of the corresponding mode through the layered air guiding mechanism and sprays from the exhaust grille (24) along the windshield surface to complete the blocking of raindrops and the removal of pollutants. S5 Closed-Loop Verification: The system detects the status of the air vents and provides feedback on the cleaning effect. If the standard is not met, the air curtain pressure and spray angle are dynamically adjusted for a second, precise cleaning. The system automatically shuts down after cleaning is complete.

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