Water inlet test equipment for vehicle-mounted sensor
By designing an on-board sensor water ingress testing device that includes an operating platform, water tank, vibration device, and control device, the problem that existing equipment cannot realistically simulate complex vibrations and water impacts has been solved, achieving accurate testing results and low-cost maintenance.
Patent Information
- Application Number
- CN202423229449.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing vehicle-mounted sensor water ingress testing equipment cannot realistically simulate the complex vibrations and water impacts encountered by sensors during vehicle operation, and is difficult to maintain.
A vehicle-mounted sensor water ingress testing device was designed, comprising an operating platform, a water tank, a vibration device, a clamping device, and a control device. It can simulate multidimensional vibration and water flow impact under different environments. Combined with the clamping device and the control device, it accurately simulates the sensor performance under dynamic water flow conditions. The structure is simple and easy to maintain.
It enables accurate simulation of vehicle-mounted sensors in various complex water ingress environments, reducing maintenance costs and improving the accuracy and efficiency of testing.
Smart Images
Figure CN223538465U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing equipment technology, specifically to a vehicle-mounted sensor water ingress testing device. Background Technology
[0002] Vehicle sensors refer to various sensor devices installed inside and outside a car to collect information about vehicle status, environment, driver behavior, and other aspects. During daily vehicle use, vehicles inevitably encounter water ingress situations such as wading and immersion. The waterproof performance of sensors directly affects their reliability and lifespan. Therefore, it is necessary to conduct water ingress tests on vehicle sensors to detect whether their performance is affected after contact with water or immersion. Existing technologies often use rain test equipment and immersion test equipment to simulate water ingress conditions for vehicle sensors. However, these two methods have limitations in simulating water ingress environments and cannot realistically simulate the complex conditions such as vibration and water impact encountered by vehicle sensors during actual vehicle operation. Furthermore, they are difficult to maintain. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a vehicle-mounted sensor water ingress testing device, which has the advantages of accurately simulating various complex water ingress environments, having a simple structural design, and being easy to maintain.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a vehicle-mounted sensor water ingress testing device, comprising:
[0005] Operating platform;
[0006] The water tank is mounted on the operating platform.
[0007] A vibration device for simulating multidimensional vibration;
[0008] A clamping device, one end of which is used to clamp the vehicle-mounted sensor and extends into the water tank, and the other end is connected to the output end of the vibration device; and
[0009] A regulating device is provided, with one end connected to one side of the water tank and the other end connected to the other side of the water tank, so as to realize the circulation of water between the water tank and the regulating device; the regulating device is used to regulate the water temperature and the water flow rate.
[0010] The present invention further comprises the following clamping device: a connecting plate; a first bracket whose upper end is connected to the bottom surface of the connecting plate and whose lower end is connected to the output end of the vibration device; a second bracket whose upper end is connected to the bottom surface of the connecting plate and whose lower end extends into the water tank; a first clamping plate assembled at the lower end of the second bracket; a second clamping plate; and an adjusting member whose one end is connected to the first clamping plate and the other end is connected to the second clamping plate; the adjusting member is used to adjust the distance between the first clamping plate and the second clamping plate; the first clamping plate, the second clamping plate, and the adjusting member cooperate to clamp the vehicle sensor.
[0011] The present invention further includes, in this embodiment, a water ingress testing device for vehicle-mounted sensors, a level switch disposed within the water tank, wherein the level switch is electrically connected to the control device.
[0012] The present invention further includes the following: the vibration device further includes a vibration table body, an exciter rotatably mounted on one side of the vibration table body, a horizontal slide movably mounted on the other side of the vibration table body, and a vertical slide detachably mounted on the output end of the exciter; the vibration table body, the horizontal slide, the vertical slide, and the exciter cooperate to realize multi-dimensional vibration simulation of the vehicle sensor.
[0013] The present invention further includes, in addition to, a monitoring device for monitoring the output signal of the vehicle sensor; the monitoring device is electrically connected to the vehicle sensor.
[0014] The present invention further includes, in this invention, a vehicle-mounted sensor water ingress testing device, which also includes a control device electrically connected to the control device.
[0015] The present invention further provides that the operating platform includes: an operating platform body and an operating frame that is detachably connected at one end to the periphery of the operating platform body; the operating frame is provided with one or more.
[0016] The present invention further provides that the operating table body is provided with a hollow structure.
[0017] The present invention further provides that the water tank has a transparent structure.
[0018] The present invention is further provided that the control device is configured as an air-cooled integrated cooling and heating unit.
[0019] The beneficial effects of this utility model after adopting the above technical solution are as follows: In this utility model, one end of the clamping device holds the vehicle-mounted sensor and extends into the water tank, while the other end is connected to the output end of the vibration device, which is used to simulate multi-dimensional vibration. Activating the vibration device simulates the situation where the vehicle-mounted sensor is exposed to water under vibrations of different directions and forces, accurately simulating the impact of water flow on the vehicle-mounted sensor from different directions and forces during vehicle operation, in order to evaluate the performance of the vehicle-mounted sensor under dynamic water flow impact conditions. The water temperature and flow rate are controlled by the regulating device to accurately simulate water temperature and flow rate under different environments. Operators control the amount of water added to the water tank to control the water depth of the vehicle-mounted sensor. One end of the regulating device is connected to one side of the water tank, and the other end is connected to the other side of the water tank, to achieve water circulation between the water tank and the regulating device. This utility model has a simple overall structure design, is easy to maintain, and reduces maintenance costs. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the structure of the operating platform and the clamping device that holds the vehicle-mounted sensor and the vibration device on a vertical slide.
[0023] Figure 3 This is a schematic diagram of the structure of the clamping device holding the vehicle-mounted sensor and the vibration device on a horizontal slide.
[0024] Figure 4 This is a schematic diagram of the clamping device holding the vehicle-mounted sensor.
[0025] Figure 5 This is an exploded diagram of the structure in which the clamping device holds the vehicle-mounted sensor, the liquid level switch, and the water tank.
[0026] Figure 6 This is a schematic diagram of a vibration device simulating vertical vibration.
[0027] Figure 7 This is a schematic diagram of a vibration device simulating horizontal vibration.
[0028] Figure 8 This is a schematic diagram of the control device.
[0029] Explanation of reference numerals in the attached drawings: 100, operating platform; 110, operating platform body; 120, operating frame; 200, water tank; 300, vibration device; 310, vibration table body; 320, vibrator; 330, vertical slide; 340, horizontal slide; 400, clamping device; 410, connecting plate; 420, first support; 430, second support; 440, first clamping plate; 450, second clamping plate; 460, adjusting component; 500, vehicle-mounted sensor; 600, control device; 700, liquid level switch; 800, control device. Detailed Implementation
[0030] The present invention will be further described in detail below with reference to the accompanying drawings.
[0031] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
[0032] This embodiment relates to a vehicle-mounted sensor water ingress testing device, referring to... Figure 1The system includes: an operating platform 100, a water tank 200, a vibration device 300, a clamping device 400, and a control device 600. The water tank 200 is mounted on the operating platform 100; the vibration device 300 is used to simulate multidimensional vibration; one end of the clamping device 400 is used to clamp the vehicle-mounted sensor 500 and extends into the water tank 200, while the other end is connected to the output end of the vibration device 300; one end of the control device 600 is connected to one side of the water tank 200, and the other end is connected to the other side of the water tank 200, so as to realize the circulation of water between the water tank 200 and the control device 600; the control device 600 is used to regulate the water temperature and the water flow rate. Specifically, a certain amount of water is added to the water tank 200, and the water circulates between the control device 600 and the water tank 200 to ensure that the vehicle-mounted sensor 500 is always in a water environment. One end of the clamping device 400 is connected to the output end of the vibration device 300. Activating the vibration device 300 simulates various vibration environments with different directions and forces. The clamping device 400 then transmits the vibration direction and force to the vehicle-mounted sensor 500 located at the other end of the clamping device 400 within the water tank 200. This accurately simulates the impact of water flow of different directions and forces on the vehicle-mounted sensor 500 during actual vehicle wading, allowing for the evaluation of the sensor's performance under dynamic water flow impact conditions. The regulating device 600 adjusts the water temperature and flow rate, taking into account that environmental factors such as weather can also affect the performance of the vehicle-mounted sensor 500 in real-world situations, further accurately simulating water ingress conditions at different temperatures and flow rates. This vehicle-mounted sensor water ingress testing equipment not only accurately simulates various complex scenarios but also features a simple overall design, convenient maintenance, and reduced maintenance costs.
[0033] In this embodiment, the control device 600 also includes a constant temperature control module to maintain a constant water temperature. In this embodiment, the temperature range controlled by the control device 600 is -10℃ to 80℃, providing various different water temperature environments. In some embodiments, the temperature range controlled by the control device 600 can also be other temperature ranges such as 10℃ to 90℃. In this embodiment, the control device 600 includes: a thermostat, a circulation pump for ensuring water circulation, an evaporator, a heating element, a flow rate controller, and a flow meter. When it is necessary to heat the water in the water tank 200, the circulation pump is started, the thermostat is adjusted to the set temperature, and the water in the water tank 200 passes through the thermostat and then through the heating element to reach the set temperature, finally returning to the water tank 200. The evaporator in the control device 600 serves to lower the water temperature. The flow rate controller regulates the flow rate of the circulating water, and the flow meter measures the flow rate of the circulating water in real time. In this embodiment, the flow rate range of the circulating water between the water tank 200 and the control device 600 is 0.5-10 m / s. In other embodiments, the flow rate range of the circulating water is determined according to the actual test requirements.
[0034] In some embodiments, the control device 600 further includes a compressor and a cooling system. Initially, the compressor draws in low-temperature, low-pressure refrigerant gas after evaporation and cooling, then compresses it into high-temperature, high-pressure gas and sends it to the condenser in the cooling system. After being cooled by the condenser, the high-pressure, high-temperature gas condenses into a room-temperature, high-pressure liquid. When the room-temperature, high-pressure liquid flows into the thermostatic expansion valve in the cooling system, it is throttled into low-temperature, low-pressure wet vapor, flows into the evaporator, absorbs heat from the antifreeze in the evaporator, and lowers its temperature. The evaporated refrigerant is then drawn back into the compressor, and the next refrigeration cycle is repeated.
[0035] In this embodiment, the control device 600 is configured as an air-cooled integrated heating and cooling unit, which has the advantages of saving energy and reducing operating costs. In other embodiments, the control device 600 can also be any other machine capable of regulating water temperature and water flow rate.
[0036] In this embodiment, refer to Figures 2-5 The clamping device 400 includes: a connecting plate 410, a first bracket 420, a second bracket 430, a first clamping plate 440, a second clamping plate 450, and an adjusting member 460. The upper end of the first bracket 420 is connected to the bottom surface of the connecting plate 410, and the lower end is connected to the output end of the vibration device 300. The upper end of the second bracket 430 is connected to the bottom surface of the connecting plate 410, and the lower end extends into the water tank 200. The first clamping plate 440 is assembled at the lower end of the second bracket 430. One end of the adjusting member 460 is connected to the first clamping plate 440, and the other end is connected to the second clamping plate 450. The adjusting member 460 connects the first clamping plate 440 and the second clamping plate 450 and adjusts the distance between the first clamping plate 440 and the second clamping plate 450 according to different sizes or types of vehicle-mounted sensors 500 to clamp the vehicle-mounted sensor 500 to be tested. The first clamping plate 440, the second clamping plate 450, and the adjusting member 460 cooperate to clamp the vehicle-mounted sensor 500. Specifically, in this embodiment, the adjusting member 460 includes: an adjusting member 460 body and a fastener that locks one end of the adjusting member 460 body to the first clamping plate 440 and the other end of the adjusting member 460 body to the second clamping plate 450. The adjusting member 460 body and the fastener cooperate to adjust the distance between the first clamping plate 440 and the second clamping plate 450. In some embodiments, the adjusting member 460 may also be configured to be telescopic, so as to adjust the distance between the first clamping plate 440 and the second clamping plate 450 to accommodate vehicle sensors 500 of different sizes and dimensions.
[0037] Furthermore, two first brackets 420 are provided, with their upper ends connected to both ends of the bottom surface of the connecting plate 410, and their lower ends connected to both sides of the output end of the vibration device 300. Two second brackets 430 are provided, with their upper ends connected to the bottom surface of the connecting plate 410, and their lower ends connected to both ends of the first clamping plate 440. In this embodiment, four adjusting members 460 are provided, respectively connected to the periphery of the first clamping plate 440 and the second clamping plate 450. In some embodiments, four first brackets 420 may be provided, one second bracket 430 may be provided, and two adjusting members 460 may be provided.
[0038] In this embodiment, refer to Figures 2-3 as well as Figures 6-7 The vibration device 300 includes a vibration table body 310, a vibrator 320, a horizontal slide 340, and a vertical slide 330. One end of the vibrator 320 is rotatably mounted on one side of the vibration table body 310, the horizontal slide 340 is movably mounted on the other side of the vibration table body 310, and the vertical slide 330 is detachably mounted on the output end of the vibrator 320. The vibration table body 310, the horizontal slide 340, the vertical slide 330, and the vibrator 320 cooperate to achieve multi-dimensional vibration simulation of the vehicle-mounted sensor 500. In this embodiment, when it is necessary to simulate vertical vibration of the vehicle-mounted sensor 500, the lower end of the first bracket 420 in the clamping device 400 is connected to the vertical slide 330, and the vibrator 320 drives the vertical slide 330 to simulate vertical vibration of the vehicle-mounted sensor 500. When it is necessary to change the simulated vertical vibration to simulated horizontal vibration, the vertical slide 330 is removed, and the exciter 320 is rotated so that its output end aligns with the horizontal slide 340. The exciter 320 drives the horizontal slide 340 to simulate horizontal vibration of the vehicle sensor 500. In this embodiment, the vibration table body 310, horizontal slide 340, vertical slide 330, and exciter 320 work together to simulate vertical and horizontal vibration of the vehicle sensor 500. In other embodiments, the vibration table body 310, horizontal slide 340, vertical slide 330, and exciter 320 can also work together to apply three mutually perpendicular vibration directions to the vehicle sensor 500, namely the X-axis, Y-axis, and Z-axis. In this embodiment, the vibration device 300 is a vibration table. In some embodiments, the vibration device 300 can also be other devices that can provide multidimensional vibration.
[0039] In this embodiment, refer to Figure 2 The operating platform 100 includes an operating platform body 110 and an operating frame 120. One end of the operating frame 120 is detachably connected to the periphery of the operating platform body 110. One or more operating frames 120 are provided. In this embodiment, referring to… Figure 2The control panel body 110 and the control frame 120 are detachably connected to allow for adaptive adjustment based on the heights of the horizontal slide 340 and the vertical slide 330. Specifically, the control frame 120 has multiple fasteners at different height positions to secure the control panel body 110 to support the water tank and to facilitate the clamping device 400 to clamp one end of the vehicle sensor 500 into the water tank 200 and connect the other end to the output end of the vibration device 300. In this embodiment, multiple control frames 120 are provided. In some embodiments, only one control frame 120 may be provided. Further, the control panel body 110 has a hollow structure so that when the water tank 200 is mounted on the top surface of the control panel body 110 and the vibration device 300 is located at the lower end of the top surface of the control panel body 110, the end of the clamping device 400 connected to the output end of the vibration device 300 can pass through the hollow structure of the control panel body 110 and connect to the output end of the vibration device 300. Meanwhile, the control panel body 110 is designed with a hollow structure to simplify the overall weight of the structure.
[0040] In this embodiment, the water tank 200 has a transparent structure, allowing testers to observe the vehicle-mounted sensor 500 inside the water tank 200 during simulated testing. Simultaneously, testers can adjust the water volume in the water tank 200 through the transparent structure to adjust the water-passing area of the vehicle-mounted sensor 500. In this embodiment, the water tank 200 structure uses a combination of acrylic material and sheet metal, ensuring the strength and waterproofness of the water tank 200. In other embodiments, the water tank 200 structure may use other materials. In some embodiments, an ultrasonic Doppler flow meter is also provided inside the water tank 200 to measure the water velocity and flow rate within the water tank 200. In this embodiment, both sides of the water tank 200 are connected to the control device 600 via flexible hoses. In some embodiments, both sides of the water tank 200 may also be connected to the control device 600 via other pipes.
[0041] In this embodiment, refer to Figure 5 The vehicle-mounted sensor water ingress testing equipment also includes: a level switch 700 disposed within the water tank 200; the level switch 700 is electrically connected to the control device 600. Specifically, the level switch 700 is electrically connected to a solenoid valve in the control device 600. When the level switch 700 detects that the water level in the water tank 200 is too low, the solenoid valve opens to remind the tester to add water to the water tank 200. In some embodiments, an automatic water replenishment device is electrically connected to the solenoid valve to automatically replenish water to the water tank 200 when the water level is too low.
[0042] In this embodiment, the vehicle-mounted sensor water ingress testing equipment further includes: a monitoring device (not shown in the attached drawings) for monitoring the output signal of the vehicle-mounted sensor 500; the monitoring device is electrically connected to the vehicle-mounted sensor 500. In this embodiment, the vehicle-mounted sensor 500 outputs digital signals and has a bus interface, such as RS-485, CAN, etc., and the monitoring device can directly read the sensor signal through the corresponding bus. In this embodiment, the monitoring device is used to monitor the stability of the output data of the vehicle-mounted sensor 500. If the data fluctuates greatly or frequently shows irregular changes, it indicates that there is a problem with the sensor. This can also be determined through 485 communication; when no data is received through 485 communication, the sensor has failed. In addition, the vehicle-mounted sensor 500 to be tested is compared with a known, normally functioning vehicle-mounted sensor 500 of the same model. Under the same test conditions, their output signals, measurement results, etc., are monitored and compared. If the difference between the two is significant, it can be determined that the performance of the vehicle-mounted sensor 500 to be tested has degraded or failed.
[0043] In this embodiment, refer to Figure 8 This vehicle-mounted sensor water ingress testing equipment also includes a control device 800, which is electrically connected to the regulating device 600. The control device 800 controls the operation and startup of the regulating device 600, and can also provide a user interface for setting system parameters, viewing system status, and recording historical data.
[0044] The above is only used to illustrate the technical solution of this utility model and not to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A vehicle-mounted sensor water ingress testing device, characterized in that, include: Operating platform (100); A water tank (200) is mounted on the operating platform (100); A vibration device (300) for simulating multidimensional vibration; A clamping device (400), one end of which is used to clamp the vehicle-mounted sensor (500) and extends into the water tank (200), and the other end is connected to the output end of the vibration device (300); and A regulating device (600) is provided, with one end connected to one side of the water tank (200) and the other end connected to the other side of the water tank (200) to enable water to circulate between the water tank (200) and the regulating device (600); the regulating device (600) is used to regulate the water temperature and the water flow rate.
2. The vehicle-mounted sensor water ingress testing equipment according to claim 1, characterized in that, The clamping device (400) includes: a connecting plate (410), a first bracket (420) with its upper end connected to the bottom surface of the connecting plate (410) and its lower end connected to the output end of the vibration device (300), a second bracket (430) with its upper end connected to the bottom surface of the connecting plate (410) and its lower end extending into the water tank (200), a first clamping plate (440) assembled at the lower end of the second bracket (430), a second clamping plate (450), and an adjusting member (460) with one end connected to the first clamping plate (440) and the other end connected to the second clamping plate (450); the adjusting member (460) is used to adjust the distance between the first clamping plate (440) and the second clamping plate (450); the first clamping plate (440), the second clamping plate (450), and the adjusting member (460) cooperate to clamp the vehicle sensor (500).
3. The vehicle-mounted sensor water ingress testing equipment according to claim 1, characterized in that, The vehicle-mounted sensor water ingress testing equipment further includes: a level switch (700) installed in the water tank (200); the level switch (700) is electrically connected to the control device (600).
4. The vehicle-mounted sensor water ingress testing equipment according to claim 1, characterized in that, The vibration device (300) further includes: a vibration table body (310), an exciter (320) rotatably mounted on one side of the vibration table body (310), a horizontal slide (340) movably mounted on the other side of the vibration table body (310), and a vertical slide (330) detachably mounted on the output end of the exciter (320); the vibration table body (310), the horizontal slide (340), the vertical slide (330), and the exciter (320) cooperate to realize multi-dimensional vibration simulation of the vehicle-mounted sensor (500).
5. The vehicle-mounted sensor water ingress testing equipment according to claim 1, characterized in that, The vehicle-mounted sensor water ingress testing equipment further includes: a monitoring device for monitoring the output signal of the vehicle-mounted sensor (500); the monitoring device is electrically connected to the vehicle-mounted sensor (500).
6. The vehicle-mounted sensor water ingress testing equipment according to claim 1, characterized in that, The vehicle-mounted sensor water ingress testing equipment further includes a control device (800), which is electrically connected to the regulation device (600).
7. The vehicle-mounted sensor water ingress testing device according to claim 1, characterized in that, The operating table (100) includes: an operating table body (110) and an operating frame (120) that is detachably connected at one end to the periphery of the operating table body (110); the operating frame (120) is provided with one or more.
8. The vehicle-mounted sensor water ingress testing equipment according to claim 7, characterized in that, The control panel body (110) is provided with a hollow structure.
9. The vehicle-mounted sensor water ingress testing device according to any one of claims 1-8, characterized in that, The water tank (200) is provided with a transparent structure.
10. The vehicle-mounted sensor water ingress testing device according to any one of claims 1-8, characterized in that, The control device (600) is configured as an air-cooled integrated cooling and heating unit.