Multifunctional intelligent automobile skylight immersion test device

Abstract

The invention belongs to the technical field of intelligent automobile sunroofs, and particularly relates to a multifunctional intelligent automobile sunroof water immersion test device which comprises a base, Z-shaped conveying belts, a water spraying collecting tank, a water immersion pool, a water spraying assembly and a self-cleaning water changing assembly. The Z-shaped conveying belt is composed of an upper horizontal belt part, an inclined belt part and a lower horizontal belt part, the sprayed water collecting tank is distributed close to the upper horizontal belt part of the Z-shaped conveying belt and staggered with the upper horizontal belt part, and the soaking pool is distributed close to the inclined belt part of the Z-shaped conveying belt and the lower horizontal belt part; the water spraying assembly is arranged above the sprayed water collecting tank and is used for raining operation; the self-cleaning water changing assembly can cyclically clean water in the soaking pool and replenish water according to the water level requirement, the requirements of an intelligent automobile skylight falling-into-water automatic opening test, a rain sensing automatic closing test and a rain sealing test are met, and the equipment cost and space occupation are reduced.

Description

Technical Field

[0001] This invention belongs to the field of intelligent car sunroof technology, specifically relating to a multifunctional intelligent car sunroof water immersion test device. Background Technology

[0002] With the continuous improvement of automotive safety performance, the intelligent sunroof opening function under floodwater is becoming an important part of vehicle safety design. This function can automatically open the sunroof when the vehicle accidentally falls into water, providing occupants with a crucial escape route. The intelligent sunroof opening system achieves intelligent judgment and rapid response through the collaborative work of multiple sensors: located in the chassis area, it monitors changes in the water level at the bottom in real time, triggering an alarm when the water depth exceeds a preset safety threshold. The vehicle's attitude sensor monitors changes in pitch and roll, determining whether the vehicle is floating or capsizing due to buoyancy. The in-vehicle water immersion sensor is usually placed in the front footwell or under the seats, detecting water ingress into the cabin through conductive humidity contacts. These sensor signals are fused and judged, triggering an emergency avoidance strategy based on multiple sensing sources. The intelligent sunroof opening function under floodwater has proven its crucial role in actual accidents. When a vehicle falls into water, the water pressure quickly blocks the doors. The sunroof, located on the top of the vehicle, is the only area above the water surface that may not be completely submerged. Opening it can quickly provide breathing space or an escape route. After a vehicle falls into water, there are only 1 to 2 minutes of golden escape time. Traditional methods require occupants to operate manually, while the intelligent activation function can be completed automatically before the power is cut off, greatly improving the success rate of escape.

[0003] Existing immersion test equipment has been found to have shortcomings when conducting tests related to smart car sunroofs. First, its functions are relatively limited and cannot meet the requirements of tests such as automatic opening when the sunroof is submerged in water, automatic closing when the rain sensor is activated, and rain sealing tests. Second, it lacks a transfer component, which makes it difficult to quickly adjust the position of the car under test according to the needs of each test. Third, its immersion tank lacks a self-cleaning component, which cannot automatically clean the water and debris in the tank after each test.

[0004] In view of this, the inventors hope to design a multifunctional intelligent vehicle sunroof immersion test device. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned problems in the prior art and provide a multifunctional intelligent vehicle sunroof immersion test device.

[0006] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution: This invention provides a multifunctional intelligent automotive sunroof water immersion test device, comprising a base, a Z-shaped conveyor belt, a water collection tank, an immersion pool, a water spraying assembly, and a self-cleaning water replacement assembly. Two Z-shaped conveyor belts are installed side by side on the upper side of the base. Each Z-shaped conveyor belt consists of an upper horizontal belt section, an inclined belt section, and a lower horizontal belt section. The water collection tank is located near the upper horizontal belt section of the Z-shaped conveyor belt and is offset from its position. The immersion pool is located near the inclined belt section and the lower horizontal belt section of the Z-shaped conveyor belt, and the bottom shape of the immersion pool matches the shape of the inclined belt section and the lower horizontal belt section. The water spraying assembly is located above the water spraying collection tank and is used to provide corresponding rain spraying operations for the intelligent vehicle sunroof rain sensor automatic closing test and the rain sealing test. The self-cleaning water exchange component is installed inside the base and distributed close to the immersion pool; the self-cleaning water exchange component can circulate and clean the water in the immersion pool and replenish water according to the water level requirements.

[0007] Furthermore, in the aforementioned multifunctional intelligent car sunroof immersion test device, a grid plate is installed at the upper end of the water collection tank, and a drainage hole extending to the inclined surface of the immersion pool is opened at the side end of the water collection tank.

[0008] Furthermore, in the aforementioned multifunctional intelligent car sunroof immersion test device, the spacing between the two Z-shaped conveyor belts is matched with the wheelbase of the intelligent car. The inclined belt section of the Z-shaped conveyor belt is provided with an arc-shaped avoidance structure at the connection between the upper horizontal belt section and the lower horizontal belt section to prevent scratching the chassis of the intelligent car. The outer side of the Z-shaped conveyor belt is provided with anti-slip ridges, and several pressure rollers for improving support capacity are installed inside the Z-shaped conveyor belt.

[0009] Furthermore, in the aforementioned multifunctional intelligent car sunroof immersion test device, the water spray assembly includes a base plate, a water storage box, a water pump pipe, a water guide pipe, a limiting seat, an open spherical groove, a spherical movable plate, a water supply pipe, a spray outer shell, a spray inner shell, a rotary drive, a lifting push rod, and an ear plate. A water storage box is installed on the upper side of the base plate, and a limiting seat is installed at the center of the lower side of the base plate. The limiting seat has an open spherical groove inside. The water pump of the water storage box is connected to the top of the open spherical groove via the water pump pipe and the water guide pipe. The spherical movable plate is movable within the spherical groove. The top end of the water supply pipe is embedded inside the spherical movable plate and communicates with the water guide pipe through the open spherical groove. The bottom end of the water supply pipe passes through the upper plate of the spray shell and communicates with the inner shell of the spray shell. A rotary drive for rotating the inner shell of the spray shell is installed inside the spray shell. Several lifting push rods are installed around the limiting seat on the lower side of the base plate. Several ear plates are installed around the water supply pipe on the upper side of the spray shell. The movable end of the lifting push rod is hinged to the upper end of the ear plate.

[0010] Furthermore, in the aforementioned multifunctional intelligent car sunroof immersion test device, the lower plate of the inner spray shell is provided with a plurality of inner spray holes, and the lower plate of the outer spray shell is provided with a plurality of outer spray holes. The inner spray holes and outer spray holes correspond one-to-one, and the overlapping part of the corresponding inner spray holes and outer spray holes serves as a spray hole.

[0011] Furthermore, in the aforementioned multifunctional intelligent car sunroof immersion test device, the self-cleaning water replacement component includes a cylindrical water tank. The inner cavity of the cylindrical water tank is divided into an upper chamber and a lower chamber by a water-pumping baffle seat. One side of the lower chamber is connected to the bottom of the immersion pool via a drain pipe. A cleaning pipe with a plug is installed on the other side of the lower chamber. A filter cartridge is installed on the upper part of the lower chamber. A rotating shaft is connected to the water-pumping baffle seat and the filter cartridge. A cleaning brush that abuts against the filter cartridge is installed at the bottom end of the rotating shaft via a lower support plate. An impeller is installed between the filter cartridge and the water-pumping baffle seat on the rotating shaft. A cylindrical box fitted on the outside of the rotating shaft is installed on the inner wall of the upper chamber via an upper support plate. A suction pump for sucking water from the upper or lower chamber and guiding the sucked water into the cylindrical box is installed in the upper chamber. A spray pipe extending into the immersion pool is connected to the top of the rotating shaft via a water-guiding slip ring. Several spray holes are opened on the spray pipe.

[0012] Furthermore, in the aforementioned multifunctional intelligent car sunroof immersion test device, the filter cylinder is generally in the shape of a frustum, and the filter cylinder has filter holes evenly distributed on the conical surface; the inclination of the cleaning brush is matched with the taper of the filter cylinder.

[0013] Furthermore, in the aforementioned multifunctional intelligent car sunroof immersion test device, a perforation is provided at the center of the water-pumping baffle seat, and an annular water-pumping chamber is provided inside the water-pumping baffle seat, with water-pumping holes evenly distributed on the bottom surface of the annular water-pumping chamber.

[0014] Furthermore, in the aforementioned multifunctional intelligent car sunroof immersion test device, the suction end of the suction pump is connected to a switching valve via a first suction pipe. The switching valve is equipped with a second suction pipe communicating with the upper chamber and a third suction pipe communicating with the annular water suction chamber. The water delivery end of the suction pump is connected to the inner cavity of the cylindrical box via a water delivery pipe.

[0015] Furthermore, in the aforementioned multifunctional intelligent car sunroof immersion test device, the upper end of the rotating shaft is provided with an axial water guide groove, and the upper part of the rotating shaft is provided with multiple water suction grooves along the radial direction. The axial water guide groove is connected to the inner cavity of the cylindrical box through the water suction groove.

[0016] The beneficial effects of this invention are: 1. Multifunctional integration It meets the requirements of intelligent vehicle sunroof automatic opening test when water falls on it, rain sensor automatic closing test, and rain sealing test, while reducing equipment cost and space occupation.

[0017] 2. Accurately simulates real-world scenarios The adjustable spray angle of the water spray assembly and the water pressure control of the immersion pool can simulate various extreme conditions such as heavy rain, wading, and falling into water.

[0018] 3. Automation and efficient cleaning The self-cleaning water exchange component automatically filters circulating water through a filter cartridge, impeller, and cleaning brush, reducing manual maintenance; the suction pump supports water source switching, improving test efficiency.

[0019] 4. Safety Protection Design The Z-shaped conveyor belt features an arc-shaped clearance structure and anti-slip ridges to prevent damage from vehicle movement; the grating plate of the water collection trough prevents debris from clogging it.

[0020] 5. Standardization and scalability It meets waterproof testing standards such as IPX7 / 8 (e.g., GB4208), is suitable for sunroof testing of different car models, and can be adapted to future sensor technologies by adjusting parameters.

[0021] In summary, this device, through modular design and intelligent control, enables comprehensive testing of the waterproof performance of skylights, combining high efficiency, safety, and environmental friendliness.

[0022] Of course, any product implementing this invention does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram showing the state of the present invention during rain sensor automatic shut-off test and rain sealing test; Figure 2 This is a schematic diagram illustrating the state of the intelligent car sunroof automatically opening when water falls into it during the test of this invention. Figure 3 This is a top view of the present invention with the water spraying component omitted; Figure 4 This is a schematic diagram of the water spraying component in this invention; Figure 5 This is a schematic diagram illustrating the principle of adjusting the spray direction of the water spraying component in this invention; Figure 6 This is a schematic diagram of the rotary drive in this invention; Figure 7This is a schematic diagram of the self-cleaning water exchange component in this invention; Figure 8 This is a schematic diagram of the impeller structure in this invention; Figure 9 This is a schematic diagram of the suction principle of the suction pump in this invention; In the attached diagram, the components represented by each number are as follows: 1-Base; 2-Z-shaped conveyor belt; 3-Water collection tank, 301-Grating plate, 302-Drain hole; 4-Immersion pool; 5-Water spray assembly, 501-Base plate, 502-Water storage box, 503-Water pump pipe, 504-Water guide pipe, 505-Limiting seat, 506-Open spherical groove, 507-Spherical movable plate, 508-Water supply pipe, 509-Spray shell, 510-Spray inner shell, 511-First water supply port, 512-Rotary drive, 513-Spray inner hole, 514-Spray outer hole, 515-Lifting push rod, 516-Ear plate; 6-Self-cleaning water changing component, 601-Cylindrical water tank, 602-Pump baffle seat, 602a-Perforation, 602b-Annular pumping chamber, 602c-Pumping hole, 603-Upper chamber, 604-Lower chamber, 605-Drain pipe, 606-Cleaning pipe, 607-Plug, 608-Filter cartridge, 609-Shaft, 610-Lower support plate, 611-Cleaning brush, 612-Impeller, 612a-Inner... Ring, 612b-blade, 612c-outer ring, 612d-outer ring sleeve, 613-upper support plate, 614-cylindrical box, 615-suction pump, 616-suction tank, 617-water guide slip ring, 618-spray pipe, 619-spray hole, 620-second water supply port, 621-first suction pipe, 622-switching valve, 623-second suction pipe, 624-third suction pipe, 625-water delivery pipe. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figures 1-9As shown, this embodiment provides a multifunctional intelligent car sunroof water immersion test device, including a base 1, a Z-shaped conveyor belt 2, a water collection tank 3, an immersion pool 4, a water spraying assembly 5, and a self-cleaning water exchange assembly 6. Two Z-shaped conveyor belts 2 are installed side-by-side on the upper side of the base 1. Each Z-shaped conveyor belt 2 consists of an upper horizontal belt section, an inclined belt section, and a lower horizontal belt section. The water collection tank 3 is located near the upper horizontal belt section of the Z-shaped conveyor belts 2 and is offset from their positions. The immersion pool 4 is located near the inclined belt section and the lower horizontal belt section of the Z-shaped conveyor belts 2, and the bottom shape of the immersion pool 4 matches the shape of the inclined belt section and the lower horizontal belt section. The water spraying assembly 5 is located above the water collection tank 3 and is used to provide corresponding rain spraying operations for the intelligent car sunroof rain sensor automatic closing test and rain sealing test. The self-cleaning water exchange assembly 6 is located inside the base 1 and distributed near the immersion pool 4; the self-cleaning water exchange assembly 6 can circulate and clean the water in the immersion pool 4 and replenish water according to the water level requirements.

[0027] In this embodiment, a grid plate 301 is installed at the upper end of the water collection tank 3, and a drain hole 302 extending to the inclined surface of the immersion pool is opened at the side end of the water collection tank 3.

[0028] In this embodiment, the spacing between the two Z-shaped conveyor belts 2 is matched with the wheel track of the intelligent vehicle. The inclined belt section of the Z-shaped conveyor belt 2 is provided with an arc-shaped avoidance structure at the connection between the upper horizontal belt section and the lower horizontal belt section to prevent scratching the chassis of the intelligent vehicle. The outer side of the belt body of the Z-shaped conveyor belt 2 is provided with anti-slip ridges. Several pressure rollers for improving support capacity are installed inside the belt body of the Z-shaped conveyor belt 2.

[0029] In this embodiment, the water spraying assembly 5 includes a base plate 501, a water storage box 502, a pump pipe 503, a water guide pipe 504, a limiting seat 505, an open spherical groove 506, a spherical movable plate 507, a water supply pipe 508, a spray outer shell 509, a spray inner shell 510, a rotary driver 512, a lifting push rod 515, and an ear plate 516. The water storage box 502 is mounted on the upper side of the base plate 501, and a first water inlet 511 is provided at the top of the water storage box 502. A limiting seat 505 is mounted at the center of the lower side of the base plate 501, and an open spherical groove 506 is provided inside the limiting seat 505. The pump of the water storage box 502 is connected to the top of the open spherical groove 506 via the pump pipe 503 and the water guide pipe 504. A spherical movable plate 507 is movable within the open spherical groove 506. The top end of the water supply pipe 508 is embedded inside the spherical movable plate 507 and communicates with the water guide pipe 504 via the open spherical groove 506. The bottom end of the water supply pipe 508 passes through the upper plate of the spray housing 509 and communicates with the inner spray housing 510. A rotary drive 512 for rotating the inner spray housing 510 is installed inside the spray housing 509. Several lifting push rods 515 are mounted around the limiting seat 505 on the lower side of the base plate 501, and several ear plates 516 are mounted around the water supply pipe 508 on the upper side of the spray housing 509. The movable end of the lifting push rod 515 is hinged to the upper end of the ear plate 516.

[0030] In this embodiment, the lower plate of the inner spray shell is provided with a plurality of inner spray holes 513, and the lower plate of the outer spray shell 509 is provided with a plurality of outer spray holes 514. The inner spray holes 513 and the outer spray holes 514 correspond one-to-one, and the overlapping part of the corresponding inner spray holes 513 and outer spray holes 514 is used as a spray hole.

[0031] In this embodiment, the self-cleaning water exchange component 6 includes a cylindrical water tank 601. The inner cavity of the cylindrical water tank 601 is divided into an upper chamber 603 and a lower chamber 604 by a water-pumping baffle seat 602. One side of the lower chamber 604 is connected to the bottom of the inner cavity of the immersion pool 4 via a drain pipe 605. A cleaning pipe 606 with a plug 607 is installed on the other side of the lower chamber 604. A filter cartridge 608 is installed on the upper part of the lower chamber 604. A rotating shaft 609 is jointly provided through the water-pumping baffle seat 602 and the filter cartridge 608. A cleaning brush 611 that abuts against the filter cartridge 608 is installed at the bottom end of the rotating shaft 609 via a lower support plate 610. An impeller 612 is installed between the filter cartridge 608 and the water-pumping baffle seat 602 on the rotating shaft 609. A cylindrical box 614, sleeved on the outside of the rotating shaft 609, is installed on the inner wall of the upper chamber 603 via an upper support plate 613. A suction pump 615 is installed in the upper chamber 603 to draw water from the upper chamber 603 or the lower chamber 604 and guide the drawn water into the cylindrical box 614. The top of the rotating shaft 609 is connected to a spray pipe 618 extending into the immersion pool 4 via a water guide slip ring 617. Several spray holes 619 are opened on the spray pipe 618.

[0032] In this embodiment, the cylindrical water tank 601 is provided with a second water inlet 620 at the top of the upper chamber 603.

[0033] In this embodiment, the filter cartridge 608 has an overall frustum-shaped structure, and filter holes are evenly distributed on the conical surface of the filter cartridge 608; the inclination of the cleaning brush 611 is matched with the taper of the filter cartridge 608.

[0034] In this embodiment, a perforation 602a is provided at the center of the water-pumping baffle seat 602, and an annular water-pumping cavity 602b is provided inside the water-pumping baffle seat 602. Water-pumping holes 602c are evenly distributed on the bottom surface of the annular water-pumping cavity 602b.

[0035] In this embodiment, the impeller 612 includes an inner ring 612a, blades 612b, an outer ring 612c, and an outer ring sleeve 612d. The inner ring 612a is fixed to the outside of the rotating shaft 609. Several blades 612b are installed between the inner ring 612a and the outer ring 612c. The outer ring 612c is restricted to move within the outer ring sleeve 612d, which is fixed to the inner wall of the upper chamber 603. The impeller 612 is designed to adaptively rotate with the water flow when the suction pump 615 draws liquid from the lower chamber 604, thereby driving the cleaning brush 611 to automatically prevent clogging and clean the filter cartridge 608.

[0036] In this embodiment, the suction end of the suction pump 615 is connected to a switching valve 622 via a first suction pipe 621. The switching valve 622 is provided with a second suction pipe 623 that communicates with the upper chamber 603 and a third suction pipe 624 that communicates with the annular water pumping chamber 602b. The water delivery end of the suction pump 615 is connected to the inner cavity of the cylindrical box 614 via a water delivery pipe 625.

[0037] In this embodiment, the upper end of the rotating shaft 609 is provided with an axial water guide groove, and the upper part of the rotating shaft 609 is provided with a plurality of water suction grooves 616 along the radial direction. The axial water guide groove is connected to the inner cavity of the cylindrical box 614 through the water suction grooves 616.

[0038] The specific application of this embodiment is as follows: 1. Rain sensor automatic shut-off test The Z-shaped conveyor belt 2 moves the vehicle above the water collection tank 3. The water spray assembly 5, driven by the rotary driver 512, rotates the inner spray housing 510 and the outer spray housing 509 (the overlapping portion of the inner spray hole 513 and the outer spray hole 514 forms the spray hole), simulating different rainfall intensities and triggering the sunroof rain sensor (such as an optical or capacitive sensor). After the sensor detects water droplets, the control system closes the sunroof.

[0039] The design of the grid plate 301 and drainage hole 302 in the water collection tank 3 ensures that the water flow is concentrated and discharged into the immersion tank, avoiding interference with the test environment.

[0040] 2. Rain sealing test The Z-shaped conveyor belt 2 transfers the vehicle to a position above the water spray collection tank 3, where the water spray assembly 5 continuously sprays water onto the sunroof to detect any leaks. The drain hole 302 of the water spray collection tank 3 guides the overflow water to the immersion pool, forming a circulation.

[0041] During the test, the spray angle could be adjusted by controlling the extension distance of the movable rods of each lifting push rod 515, simulating rainwater impact from different directions, and comprehensively testing the sealing performance.

[0042] 3. Automatic opening test of sunroof when it is wet The Z-shaped conveyor belt 2 transfers the vehicle to the immersion pool 4. The immersion pool 4 simulates a vehicle falling into water by raising the water level, triggering the sunroof's water pressure sensor or conductivity sensor (such as the water level sensor detecting a change in water pressure or conductivity), thus activating the sunroof's automatic opening or window breaking function.

[0043] The filter cartridge 608 and cleaning brush 611 of the self-cleaning water exchange component 6 filter impurities, and the suction pump 615 selects to pump from the upper chamber (clean water) or the lower chamber (purified wastewater) through the switching valve 622 to maintain water quality stability and ensure test repeatability.

[0044] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multifunctional intelligent automotive sunroof immersion test device, characterized in that, The system includes a base, a Z-shaped conveyor belt, a water collection tank, an immersion pool, a water spraying assembly, and a self-cleaning water replacement assembly. Two Z-shaped conveyor belts are installed side by side on the upper side of the base. Each Z-shaped conveyor belt consists of an upper horizontal belt section, an inclined belt section, and a lower horizontal belt section. The water collection tank is located near the upper horizontal belt section of the Z-shaped conveyor belt and is offset from its position. The immersion pool is located near the inclined belt section and the lower horizontal belt section of the Z-shaped conveyor belt, and the bottom shape of the immersion pool matches the shape of the inclined belt section and the lower horizontal belt section. The water spraying assembly is located above the water spraying collection tank and is used to provide corresponding rain spraying operations for the intelligent vehicle sunroof rain sensor automatic closing test and the rain sealing test. The self-cleaning water exchange component is installed inside the base and distributed close to the immersion pool; the self-cleaning water exchange component can circulate and clean the water in the immersion pool and replenish water according to the water level requirements.

2. The multifunctional intelligent automotive sunroof immersion test device according to claim 1, characterized in that, A grating plate is installed at the upper end of the water collection trough, and a drainage hole extending to the inclined surface of the immersion pool is opened at the side end of the water collection trough.

3. The multifunctional intelligent automotive sunroof immersion test device according to claim 1, characterized in that, The spacing between the two Z-shaped conveyor belts is matched with the wheelbase of the intelligent vehicle. The inclined belt section of the Z-shaped conveyor belt is provided with an arc-shaped avoidance structure at the connection between the upper horizontal belt section and the lower horizontal belt section to prevent scratching the chassis of the intelligent vehicle. The outer side of the Z-shaped conveyor belt is provided with anti-slip ridges. Several pressure rollers for improving support capacity are installed inside the Z-shaped conveyor belt.

4. The multifunctional intelligent automotive sunroof immersion test device according to claim 1, characterized in that, The water spray assembly includes a base plate, a water storage box, a pump pipe, a guide pipe, a limiting seat, an open spherical groove, a spherical movable plate, a water supply pipe, a spray outer shell, a spray inner shell, a rotary driver, lifting push rods, and ear plates. A water storage box is mounted on the upper side of the base plate, and a limiting seat is mounted at the center of the lower side of the base plate. The limiting seat has an open spherical groove inside. The pump of the water storage box is connected to the top of the open spherical groove via the pump pipe and the guide pipe. A spherical movable plate is movably limited within the open spherical groove. The top of the water supply pipe is embedded inside the spherical movable plate and is connected to the guide pipe via the open spherical groove. The bottom end of the water supply pipe penetrates the upper plate of the spray outer shell and is connected to the spray inner shell. A rotary driver for rotating the spray inner shell is installed inside the spray outer shell. Several lifting push rods are mounted around the limiting seat on the lower side of the base plate, and several ear plates are mounted around the water supply pipe on the upper side of the spray outer shell. The movable end of the lifting push rod is hinged to the upper end of the ear plate.

5. The multifunctional intelligent automotive sunroof immersion test device according to claim 4, characterized in that, The lower plate of the inner spray shell has a plurality of inner spray holes, and the lower plate of the outer spray shell has a plurality of outer spray holes. The inner spray holes and outer spray holes correspond one-to-one, and the overlapping part of the inner spray holes and outer spray holes is used as a spray hole.

6. The multifunctional intelligent automotive sunroof immersion test device according to claim 1, characterized in that, The self-cleaning water exchange assembly includes a cylindrical water tank. The inner cavity of the cylindrical water tank is divided into an upper chamber and a lower chamber by a water-pumping baffle seat. One side of the lower chamber is connected to the bottom of the inner cavity of the immersion tank via a drain pipe. A cleaning pipe with a plug is installed on the other side of the lower chamber. A filter cartridge is installed on the upper part of the lower chamber. A rotating shaft is connected to both the water-pumping baffle seat and the filter cartridge. A cleaning brush that abuts against the filter cartridge is installed at the bottom end of the rotating shaft via a lower support plate. An impeller is installed between the filter cartridge and the water-pumping baffle seat on the rotating shaft. A cylindrical box fitted outside the rotating shaft is installed on the inner wall of the upper chamber via an upper support plate. A suction pump for sucking water from the upper or lower chamber and guiding the sucked water into the cylindrical box is installed in the upper chamber. A spray pipe extending into the immersion tank is connected to the top of the rotating shaft via a water-guiding slip ring. Several spray holes are opened on the spray pipe.

7. The multifunctional intelligent automotive sunroof immersion test device according to claim 6, characterized in that, The filter cartridge has an overall frustum-shaped structure, and filter holes are evenly distributed on the conical surface of the filter cartridge; the inclination of the cleaning brush is matched with the taper of the filter cartridge.

8. The multifunctional intelligent automotive sunroof immersion test device according to claim 7, characterized in that, A perforation is provided at the center of the water-pumping baffle seat, and an annular water-pumping cavity is provided inside the water-pumping baffle seat. Water-pumping holes are evenly distributed on the bottom surface of the annular water-pumping cavity.

9. The multifunctional intelligent automotive sunroof immersion test device according to claim 8, characterized in that, The suction end of the suction pump is connected to a switching valve via a first suction pipe. The switching valve is equipped with a second suction pipe that communicates with the upper chamber and a third suction pipe that communicates with the annular water pumping chamber. The water delivery end of the suction pump is connected to the inner cavity of the cylindrical box via a water delivery pipe.

10. A multifunctional intelligent automotive sunroof immersion test device according to claim 9, characterized in that, The upper end of the rotating shaft is provided with an inwardly axial water guide groove, and the upper part of the rotating shaft is provided with multiple water suction grooves along the radial direction. The axial water guide groove is connected to the inner cavity of the cylindrical box through the water suction grooves.

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