Vehicle-mounted rainy day environment simulation device

Abstract

The utility model discloses a vehicle-mounted rainy day environment simulation device, which is characterized in that an anti-cavitation container is arranged at one end, connected to a leading-out section, of a U-shaped section, and a buffer cavity communicated with the leading-out section is arranged in the anti-cavitation container. According to the vehicle-mounted rainy day environment simulation device provided by the utility model, a traditional intelligent networked vehicle rainy day test is expanded from a static state to a dynamic driving state, a raining test environment is started at any time, the product development progress is accelerated, and the vehicle-mounted rainy day environment simulation device is closer to a real vehicle use test; the modularized and concise design is adopted, so that various application scenes can be simulated according to requirements, and meanwhile, the related test cost can be reduced; the water outlet of the water storage device is designed in a sinking manner, so that water storage impurities are filtered and settled, and the working reliability of a water pump motor and a spray head is ensured; through the design of the two-way pipe of the anti-cavitation container, the problem of cavitation of the water pump motor is solved, and the continuity of water supply and the accuracy of flow control of the test device are effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicle-mounted test devices, and particularly to a vehicle-mounted rainy-day environment simulation device. Background Art

[0002] In the field of automotive testing and evaluation, it is crucial to accurately test and evaluate the performance of vehicles under different weather conditions. In the natural environment, the uncontrollability of the rainy-day environment makes it difficult to comprehensively and accurately execute the test plan. Especially the vehicle-mounted rain environment during the actual driving of the vehicle. This limitation restricts the in-depth testing and evaluation of the vehicle's performance in the rainy-day environment.

[0003] With the rapid development of intelligent network connection technology, intelligent network connection-related devices such as cameras, lidar, and ultrasonic radars may have a certain impact on the operation process of intelligent network connection devices in the rainy-day environment, thereby affecting the performance and safety of the functions of the intelligent network connection system. Therefore, in order to effectively evaluate and optimize the performance of these intelligent devices under rainy-day conditions during the product R & D stage, there is an urgent need for a device that can perform real-time rain simulation during the actual road driving of the vehicle. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a vehicle-mounted rainy-day environment simulation device, aiming to solve the problems that the existing rainy-day environment simulation test equipment is not convenient for vehicle mounting and is prone to cavitation.

[0005] To achieve the above purpose, the utility model provides a vehicle-mounted rainy-day environment simulation device, including:

[0006] A water storage system, including a plurality of water storage devices stacked in the thickness direction, the water storage device is provided with a water injection port and a water outlet, and a water injection cover part is correspondingly arranged at the water injection port;

[0007] A support frame for supporting the water storage system;

[0008] A water spraying system, including a water outlet pipeline, a water pump motor, a water delivery pipeline, and a water spray head connected in sequence. The water outlet pipeline includes a leading-out section and a U-shaped section connected and communicated. The leading-out section extends downward after being led out from a plurality of the water outlets and is communicated with the U-shaped section. The free end of the U-shaped section is connected to the water pump motor. An anti-cavitation container is arranged at one end of the U-shaped section connected to the leading-out section, and a buffer cavity communicated with the leading-out section is arranged in the anti-cavitation container.

[0009] Furthermore, the vehicle-mounted rainy-day environment simulation device further includes a corrugated pipe, and the corrugated pipe is connected between the leading-out section and the U-shaped section.

[0010] Further, a vacuum tube is connected to the outer periphery of one end of the U-shaped section, and support feet are connected to the outer wall of the vacuum tube.

[0011] Further, a filter screen is hermetically installed on the water injection port.

[0012] Further, a fixing table is provided corresponding to the filter screen, and the filter screen is detachably installed on the water injection port through the fixing table.

[0013] Further, the height of the support frame is adjustable.

[0014] Further, the vehicle-mounted rainy day environment simulation device further includes a battery power supply electrically connected to the water pump motor.

[0015] Further, the water spray head is of a combined sprinkler type.

[0016] Further, the water storage tank is made of a polymer material.

[0017] Further, a plurality of the water storage tanks are inserted in the thickness direction.

[0018] The vehicle-mounted rainy day environment simulation device provided by the present utility model expands the traditional rainy day test of intelligent connected vehicles from static to dynamic driving, can open the rain test environment at any time, speeds up the product development progress, and is closer to real vehicle use tests; adopts a modular and simplified design, can simulate a variety of application scenarios according to requirements while reducing test-related costs; the water storage tank adopts a sunken design for the water outlet to achieve the filtration and sedimentation of stored water impurities, ensuring the working reliability of the water pump motor and the spray head; through the design of the anti-cavitation container double-pass pipe, the problem of "cavitation" of the water pump motor is solved, effectively improving the continuity of water supply and the accuracy of flow control of the test device. Description of the Drawings

[0019] Figure 1 is a schematic diagram of the vehicle-mounted rainy day environment simulation device according to the first embodiment of the present utility model;

[0020] Figure 2 is Figure 1 partial enlargement in

[0021] Figure 3 is a schematic diagram of the water storage tank in the vehicle-mounted rainy day environment simulation device according to the first embodiment of the present utility model;

[0022] Figure 4 is a schematic diagram of the water outlet pipeline in the vehicle-mounted rainy day environment simulation device according to the first embodiment of the present utility model;

[0023] Figure 5It is a schematic diagram of the water spray head in the vehicle-mounted rainy-day environment simulation device of the first embodiment of the present utility model;

[0024] Figure 6 It is a schematic diagram of the position of the water injection cover part in the vehicle-mounted rainy-day environment simulation device of the second embodiment of the present utility model.

[0025] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0026] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0027] Those skilled in the art of the present technology can understand that unless specifically stated, the singular forms "a", "an", "the", "above-mentioned" and "this" used herein may also include the plural forms. It should be further understood that the term "including" used in the description of the present utility model means the presence of the described features, integers, steps, operations, elements, units, modules and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components and / or their groups. It should be understood that when we say an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there may also be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The phrase "and / or" used herein includes all or any unit and all combinations of one or more related listed items.

[0028] Those skilled in the art of the present technology can understand that unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of those of ordinary skill in the art to which the present utility model belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless specifically defined as here.

[0029] Referring to Figures 1 to 6 , in an embodiment of the present utility model, a vehicle-mounted rainy-day environment simulation device includes:

[0030] A water storage system 100, including a plurality of water storage devices 110 stacked in the thickness direction, a water injection port 111 and a water outlet 112 are provided on the water storage device 110, and a water injection cover part 120 is provided corresponding to the water injection port 111;

[0031] A support frame 200 that supports the water storage system 100;

[0032] A water spraying system 300 includes a water outlet pipeline 310, a water pump motor 320, a water delivery pipeline 330, and a water spray head 340 that are sequentially connected. The water outlet pipeline 310 includes a leading-out section 311 and a U-shaped section 312 that are connected and conduct. The leading-out section 311 extends downward after being led out from a plurality of the water outlet ports 112 and is conduct to the U-shaped section 312. The free end of the U-shaped section 312 is connected to the water pump motor 320. An anti-cavitation container 350 is provided at one end of the U-shaped section 312 connected to the leading-out section 311. A buffer cavity that is conduct to the leading-out section 311 is provided in the anti-cavitation container 350.

[0033] In the prior art, with the rapid development of intelligent networking technology, intelligent networking-related devices such as cameras, lidar, and ultrasonic radars may have a certain impact on the operation process of intelligent networking devices in rainy weather, thereby affecting the performance and safety of the functions of intelligent networking systems. In order to effectively evaluate and optimize the performance of these intelligent devices under rainy conditions during the product R & D stage, there is an urgent need for a device that can perform real-time rain simulation during the actual road driving process of a vehicle.

[0034] The on-vehicle rainy environment simulation device provided by the utility model, a water storage device 110 is used to hold the fluid medium for testing. The fluid medium is generally water, and according to the types of experiments, the fluid medium can also be water with various chemical additives. The water storage device 110 adopts a modular and flattened design. The water storage devices 110 can be stacked and used, and different numbers of water storage devices 110 are used according to the requirements for the amount of water in the test. Through the modular and flattened design of the water storage device 110, the design and manufacturing costs of adding a "surge baffle" to a traditional container can be reduced, and the problem of internal "surge" is effectively solved. The water storage system 100 can be composed of multiple water storage devices to meet the requirements for the amount of rain for different vehicle models. The relationship between the multiple water storage devices 110 in the thickness direction can be placed and stacked, or a certain fixed connection can be formed. A water injection port 111 is provided above one end of the water storage device 110. The water injection port 111 adopts a submerged water inlet design, and a filtering device can be provided inside the water injection port 111. When it is necessary to inject water into the water storage device 110, the water injection cover part 120 is removed. After injecting a certain volume of water, the water injection cover part 120 is reinstalled on the water storage device 110. The water outlet port 112 can adopt a sunken design, and the water in the water storage device 110 is led out through the water outlet port 112 and enters the water spraying system 300. The structure of the water injection cover part 120 can refer to the common settings in the prior art, and it can also be directly purchased on the market, or parts can be purchased on the market for composition, etc.

[0035] A support frame 200 supports the water storage system 100. The structural form of the support frame 200 is not limited as long as it can support, so as to provide space for the subsequent setting of the water outlet pipeline 310.

[0036] The water spraying system 300 includes a water outlet pipeline 310, a water pump motor 320, a water delivery pipeline 330, and a water spray head 340 that are connected in sequence. The water outlet pipeline 310 includes a lead-out section 311 and a U-shaped section 312 that are connected and conduct. The lead-out section 311 extends downward after being led out from the plurality of water outlet ports 112 and is conduct to the U-shaped section 312. The free end of the U-shaped section 312 is connected to the water pump motor 320. Through the water pump motor 320, a pumping effect is achieved. Specifically, for the structure and model of the water pump motor 320, refer to the existing conventional design, which is not the focus of the present utility model. A cavitation prevention container 350 is provided at one end of the U-shaped section 312 connected to the lead-out section 311, and a buffer chamber that is conduct to the lead-out section 311 is provided inside the cavitation prevention container 350.

[0037] The water in the water storage tank 110 flows out through the water outlet port 112, flows into the cavitation prevention container 350 through the lead-out section 311 of the water outlet pipeline 310. The cavitation prevention container 350 is used to store the water delivered by the water outlet port 180. When in use, the water is delivered to the combined water sprayer 280 through the water pump motor 320 and is sprayed. The water pump motor 320 is driven by the battery power supply 400. The buffer chamber of the cavitation prevention container 350 will only store a fixed amount of water. When the fixed amount of water storage is reached, the water flow will stop. After the water in the buffer chamber is pumped out and sprayed by the water spray head 340, the water in the water storage tank 110 will flow back into the buffer chamber again. The water in the cavitation prevention container 350 is delivered to the water spray head 340 by the power provided by the water pump motor 320 using the existing conventional driving methods. For example, it can be controlled by a regulating valve, or by frequency converter speed regulation control, etc. Its detailed structure can be known from the existing literature and periodicals, and it can also be directly purchased on the market, or the parts can be purchased on the market for assembly, etc. No detailed description will be given here;

[0038] Due to the double-pass pipe design of the cavitation prevention container 350, while solving the cavitation problem of the water pump motor, the continuity of water supply of the device and the accuracy of water volume control are ensured; according to the free arrangement of the combined water sprayer, the coverage and accuracy of the rainfall environment can be greatly improved, and at the same time, the versatility and maintenance convenience of the test device are further improved.

[0039] In summary, the on-vehicle rainy-day environment simulation device extends the traditional rainy-day test of intelligent connected vehicles from static to dynamic driving, enabling the test environment with rain spraying to be started at any time, accelerating the product development progress, and being closer to real vehicle use tests; adopting modular and simplified designs, it can simulate various application scenarios according to requirements while reducing test-related costs; the water storage tank 110 adopts a sunken design for the water outlet to achieve the filtration and sedimentation of stored water impurities, ensuring the working reliability of the water pump motor and the nozzle; through the design of the double-pass pipe of the cavitation prevention container 350, the problem of "cavitation" of the water pump motor 320 is solved, effectively improving the continuity of the water supply of the test device and the accuracy of the flow control.

[0040] Referring to Figures 1 to 4 , in one embodiment, the on-vehicle rainy-day environment simulation device further includes a corrugated pipe 360, and the corrugated pipe 360 is connected between the export section 311 and the U-shaped section 312.

[0041] In this embodiment, by connecting the corrugated pipe 360 between the export section 311 and the U-shaped section 312, a buffering effect is achieved. When the movements of the export section 311 and the U-shaped section 312 are asynchronous, the impact is absorbed by the corrugated pipe 360, and at this time, the possibility of an abnormal connection between the export section 311 and the water storage tank 110 is also reduced. The characteristics of the corrugated pipe 360 also enable it to achieve a buffering effect while being able to cope with a certain intensity of negative pressure.

[0042] Referring to Figures 1 to 4 , in one embodiment, a vacuum pipe 370 is connected to the outer periphery of the end of the export section 311 connected to the U-shaped section 312, and a support leg 371 is connected to the outer wall of the vacuum pipe 370.

[0043] In this embodiment, the connection of the support leg 371 is achieved through the vacuum pipe 370. The specific type of the polymer material for the vacuum pipe 370 is not limited. The vacuum pipe 370 is elastically sleeved on the lower end of the export section 311, and then the support leg 371 is connected to the outer wall of the vacuum pipe. Finally, the support leg 371 can achieve a support effect through the vacuum pipe 370.

[0044] Referring to Figure 6 , in one embodiment, a filter screen 121 is hermetically installed on the water injection port 111.

[0045] In this embodiment, the form of the filter screen 121 can be diverse. For example, it can be a double-layer filter screen, as long as the filtering effect can be completed. The water is poured into the water storage tank 110 through the filter screen 121 to complete the impurity filtration process. The installation method of the filter screen 121 can be diverse. For example, it can be directly fixed on the water injection port 111, or it can be installed on the water injection port 111 through other fixing structures.

[0046] Referring toFigure 6 In one embodiment, a fixing platform 122 is provided corresponding to the filter screen 121 , and the filter screen 121 is detachably mounted on the water inlet 111 through the fixing platform 122 .

[0047] In this embodiment, the filter 121 is secured to the fixing platform 122. For example, the filter 121 is mounted to the fixing platform 122 (via a clamp or welding, etc.), and the fixing platform 122 is threadedly mounted to the water inlet 111, thereby securing the filter 121 to the water inlet 111. The water inlet cover 120 and the water inlet 111 may also be connected via a threaded connection. Once the water inlet cover 120 is installed, the fixing platform 122 is enclosed within the water inlet 111. In one specific embodiment, the fixing platform 122 is secured by clamping the water inlet cover 120 with the water inlet 111.

[0048] In one embodiment, the height of the support frame 200 is adjustable.

[0049] In this embodiment, the matching of different experimental conditions is achieved by adjusting the height of the support frame 200. For example, the support frame 200 includes a support base and a support arm extension tube, which is connected to the support base using a mounting hole. Different numbers of support arm extension tubes can be selected according to needs.

[0050] Reference Figure 1 In one embodiment, the vehicle-mounted rainy day environment simulation device further includes a battery power supply 400 electrically connected to the water pump motor 320 .

[0051] In this embodiment, a battery power supply 400 is provided corresponding to the water pump motor 320, so that the vehicle-mounted rainy weather environment simulation device does not need to introduce an additional power source during use, thereby improving the flexibility of use. The type of battery power supply 400 is not limited, and can be a lithium battery or a lead-acid battery, etc.

[0052] Reference Figure 5 In one embodiment, the water sprinkler head 340 is a combination sprinkler type.

[0053] In this embodiment, the sprinkler heads 340 are modular sprinkler-type devices capable of delivering various water spray patterns. By replacing or adjusting the sprinkler heads 340, the simulation of rainy weather conditions can be closely matched to the experimental process. The flexible combination and quick plug-in connection of the modular sprinkler heads 340 maximizes the coverage and accuracy of rainfall environments, improving the versatility and ease of maintenance of the device. The modular and streamlined design of the device significantly expands the number of simulated scenarios while reducing experimental costs.

[0054] In one embodiment, the water storage tank 110 is made of polymer material.

[0055] In this embodiment, restricting the water storage tank 110 to polymer material reduces the processing difficulty and the product weight.

[0056] In one embodiment, a plurality of the water storage tanks 110 are plugged in the thickness direction.

[0057] In this embodiment, when the water storage tanks 110 are plugged in the thickness direction, the possibility of abnormal displacement of the water storage tanks 110 in the horizontal direction is restricted. For example, a plurality of plug shafts are provided on the upper surface of the water storage tank 110, and a plurality of plug slots are provided on the lower surface of the water storage tank 110. When two water storage tanks 110 are stacked, the position is fixed through the cooperation between the plug shafts and the plug slots.

[0058] In summary, for the in-vehicle rainy-day environment simulation device provided by the present utility model, the in-vehicle rainy-day environment simulation device expands the traditional rainy-day test of intelligent connected vehicles from static to dynamic driving, can start the rain test environment at any time, speeds up the product development progress, and is closer to real vehicle use tests; adopts a modular and simplified design, can simulate a variety of application scenarios according to requirements while reducing test-related costs; the water storage tank 110 adopts a sunken design for the water outlet to achieve the filtration and sedimentation of stored water impurities, ensuring the working reliability of the water pump motor and the nozzle; through the design of the double-pass pipe of the cavitation prevention container 350, the problem of "cavitation" of the water pump motor 320 is solved, effectively improving the continuity of the water supply of the test device and the accuracy of the flow control.

[0059] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. An in-vehicle rainy-day environment simulation device, characterized in that, Comprising: A water storage system (100), including a plurality of water storage devices (110) stacked in the thickness direction, wherein a water injection port (111) and a water outlet (112) are provided on the water storage device (110), and a water injection cover part (120) is provided corresponding to the water injection port (111); A support frame (200) for supporting the water storage system (100); A water spraying system (300), including a water outlet pipeline (310), a water pump motor (320), a water delivery pipeline (330) and a water spray head (340) connected in sequence. The water outlet pipeline (310) includes a lead-out section (311) and a U-shaped section (312) that are connected and conducted. The lead-out section (311) extends downward after being led out from the plurality of water outlets (112) and is conducted to the U-shaped section (312). The free end of the U-shaped section (312) is connected to the water pump motor (320). An anti-cavitation container (350) is provided at one end of the U-shaped section (312) connected to the lead-out section (311), and a buffer cavity communicated with the lead-out section (311) is provided in the anti-cavitation container (350).

2. The in-vehicle rainy weather environment simulation device according to claim 1, characterized in that The vehicle-mounted rainy day environment simulation device further includes a corrugated pipe (360) connected between the lead-out section (311) and the U-shaped section (312).

3. The on-vehicle rainy-day environment simulation device according to claim 2, wherein A vacuum pipe (370) is connected to the outer periphery of one end of the lead-out section (311) connected to the U-shaped section (312), and a support leg (371) is connected to the outer wall of the vacuum pipe (370).

4. The on-vehicle rainy-day environment simulation device according to claim 1, wherein A filter screen (121) is hermetically installed on the water injection port (111).

5. The vehicle-mounted rainy-day environment simulation device according to claim 4, characterized in that, A fixing platform (122) is provided corresponding to the filter screen (121), and the filter screen (121) is detachably installed on the water injection port (111) through the fixing platform (122).

6. The vehicle-mounted rainy-day environment simulation device according to any one of claims 1 to 5, characterized in that, The height of the support frame (200) is adjustable.

7. The on-vehicle rainy-day environment simulation device according to any one of claims 1 to 5, characterized in that The vehicle-mounted rainy day environment simulation device further includes a battery power supply (400) electrically connected to the water pump motor (320).

8. The vehicle-mounted rainy-day environment simulation device according to any one of claims 1 to 5, characterized in that, The water spray head (340) is of the combined sprinkler type.

9. The on-vehicle rainy weather environment simulation device according to any one of claims 1 to 5, characterized in that The water storage device (110) is made of a polymer material.

10. The on-vehicle rainy-day environment simulation device according to any one of claims 1 to 5, characterized in that, The plurality of water storage devices (110) are inserted in the thickness direction.

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