A device for simulating dynamic waterproofing tests of vehicle-mounted samples

Abstract

This utility model discloses a device for simulating dynamic waterproof testing of vehicle-mounted samples, comprising a plastic bucket. A bottom fixing frame is provided at the bottom of the plastic bucket, and a driving component is mounted on the top opening of the plastic bucket. A connecting shaft is driven to rotate on the bottom fixing frame via the driving component. A sample connecting plate is fixedly connected to the outer wall of the connecting shaft near the bottom. The sample to be tested is detachably mounted on the sample connecting plate. The driving component is electrically connected to a control and power supply device located outside the plastic bucket. The driving component is a stepper motor, and its output shaft is coaxially connected to the connecting shaft via a rod connecting sleeve. This utility model converts the vehicle speed and travel distance during the dynamic waterproof testing process into the stepper motor's rotation speed and number of rotations, thereby converting real-vehicle test conditions into laboratory test conditions, reducing the environmental requirements of the test site and lowering test costs.

Description

Technical Field

[0001] This utility model relates to a device for simulating dynamic waterproof testing of vehicle-mounted samples, belonging to the field of vehicle electronic product reliability testing technology. Background Technology

[0002] In May 2020, the State Administration for Market Regulation and the International Organization for Standardization issued the "Safety Requirements for Electric Vehicles." Section 6.3.2 stipulates that vehicles must be able to drive at least 500 meters in a pool of water 100mm deep at a speed of 20km / h ± 2km / h for approximately 1.5 minutes. If the pool depth is less than 500mm, the test should be repeated to ensure a cumulative wading distance of at least 50 meters. The total test time, including time spent outside the pool, should be less than 10 minutes. The evaluation covers the vehicle's electronic components and controllers.

[0003] Existing laboratory conditions typically involve 100mm deep water tanks, with electronic components and controllers submerged and operating in a static state, failing to simulate the testing conditions of real vehicles. Therefore, there is an urgent need in this technical field for a device that can conveniently and quickly perform dynamic waterproof measurements on simulated vehicle-mounted samples. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem of how to obtain a device that can conveniently and quickly perform dynamic waterproof measurements on simulated vehicle-mounted samples.

[0005] To achieve the above-mentioned technical objectives and effects, this application provides the following technical solution: An apparatus for simulating dynamic waterproof testing of vehicle-mounted samples includes a plastic bucket. The bottom of the plastic bucket is provided with a bottom fixing frame, and the top of the plastic bucket is open and supported by a driving component. A connecting shaft is driven to rotate on the bottom fixing frame by the driving component. A sample connecting plate is fixedly connected to the outer wall of the connecting shaft near the bottom. The sample to be tested can be detachably mounted on the sample connecting plate. The driving component is electrically connected to a control and power supply device located outside the plastic bucket.

[0006] Preferably, the driving component is a stepper motor, and the output shaft of the driving component is coaxially connected to the connecting shaft via a rod connecting sleeve.

[0007] Furthermore, a motor mounting bracket is provided along the edge of the opening of the plastic bucket, and the drive component is mounted on the motor mounting bracket with its output shaft passing through the motor mounting bracket and extending into the plastic bucket.

[0008] Preferably, the bottom fixing frame is a cross-shaped structure.

[0009] The device provided by this utility model for simulating dynamic waterproofing tests of vehicle-mounted samples has the following advantages: This invention converts the vehicle speed and travel distance during the dynamic waterproof test of the whole vehicle into the speed and number of rotations of the stepper motor, thereby converting the actual vehicle test conditions into laboratory test conditions, reducing the environmental requirements of the test site and reducing the test cost. Attached Figure Description

[0010] Figure 1 A schematic diagram of the structure of a device for simulating dynamic waterproofing tests of vehicle-mounted samples, provided as an embodiment of this utility model; Figure 2 This is a schematic diagram illustrating the application of a device for simulating dynamic waterproof testing of vehicle-mounted samples, as provided in an embodiment of this utility model. Figure 3 This is a side view of the working process of a device for simulating dynamic waterproof testing of vehicle-mounted samples according to an embodiment of the present invention; Figure 4 This is a top view of the working process of a device for simulating dynamic waterproof testing of vehicle-mounted samples according to an embodiment of the present invention; In the picture: 1-Plastic bucket; 2-Bottom fixing frame; 3-Drive component; 4-Connecting shaft; 5-Sample connecting plate; 6-Sample to be tested; 7-Control and power supply device; 8-Rod connecting sleeve; 9-Motor fixing bracket; 10-Test liquid. Detailed Implementation

[0011] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0012] Reference Figure 1 and Figure 2 An apparatus for simulating dynamic waterproof testing of vehicle-mounted samples includes a plastic bucket 1. A bottom mounting bracket 2 is fixedly installed at the bottom of the plastic bucket 1. The top of the plastic bucket 1 is open and a drive component 3 is mounted thereon. A connecting shaft 4 is driven to rotate on the bottom mounting bracket 2 by the drive component 3. A sample connecting plate 5 is fixedly sleeved on the outer wall of the connecting shaft 4 near the bottom. The sample to be tested 6 is detachably mounted on the sample connecting plate 5. The drive component 3 is electrically connected to a control and power supply device 7 located outside the plastic bucket 1. In this embodiment, the bottom mounting bracket 2 adopts a cross-shaped body, and the detachable mounting method of the sample to be tested 6 is preferably a bolt-connected mounting method.

[0013] Furthermore, the driving component 3 is a stepper motor, one end of the connecting shaft 4 is connected to the rod connecting sleeve 8, and the rod connecting sleeve 8 is connected to the output shaft of the stepper motor, thereby realizing the coaxial power connection between the connecting shaft 4 and the output shaft of the stepper motor driving component 3. The driving component 3 realizes power supply, driving and speed control through the control and power supply device 7. In this embodiment, the power supply and speed control technology of the stepper motor is the prior art, and will not be described in detail.

[0014] Furthermore, a motor mounting bracket 9 is installed on the edge of the opening of the plastic bucket 1. In this embodiment, the motor mounting bracket 9 can be installed by bolt connection or by transition fit snap-fit. In this embodiment, the motor mounting bracket 9 is preferably installed by bolt connection. The drive component 3 is installed on the motor mounting bracket 9 and the output shaft passes through the motor mounting bracket 9 and extends into the plastic bucket 1 to achieve connection with the connecting shaft 4.

[0015] Reference Figures 1-4 The working principle of the device for simulating dynamic waterproofing tests of vehicle-mounted samples according to this utility model is as follows: In use, the sample to be tested 6 is installed on the sample connecting plate 5; an appropriate amount of test liquid 10 is placed in the plastic bucket 1, so that the liquid level partially or completely submerges the sample to be tested 6 according to the test requirements; the control and power supply device 7 is turned on, and the speed of the drive component 3 is adjusted; the drive component 3 rotates the connecting shaft 4 through the rod connecting sleeve 8, driving the sample connecting plate 5 and the sample to be tested 6 to make circular motion in the test liquid 10; by converting the vehicle speed in the test requirements into the angular velocity of the stepper motor of the drive component 3, and converting the vehicle distance into the number of rotations of the stepper motor of the drive component 3, the dynamic waterproof test of the vehicle-mounted sample can be performed directly in the form of a component under laboratory conditions, without the need to install it on an actual vehicle or perform it on an actual site, thus optimizing the test steps, reducing the environmental requirements of the test site, and reducing the test cost.

[0016] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A device for simulating dynamic waterproofing test of a vehicle-mounted sample, characterized in that, The device includes a plastic bucket (1), a bottom fixing frame (2) is provided at the bottom of the plastic bucket (1), a drive component (3) is provided at the top of the plastic bucket (1), a connecting shaft (4) is driven to rotate on the bottom fixing frame (2) by the drive component (3), a sample connecting plate (5) is fixedly connected to the outer wall of the connecting shaft (4) near the bottom, and the sample to be tested (6) is detachably set on the sample connecting plate (5). The drive component (3) is electrically connected to a control and power supply device (7) located outside the plastic bucket (1).

2. A device for simulating dynamic waterproof test of vehicle-mounted sample according to claim 1, characterized in that, The driving component (3) is a stepper motor, and the output shaft of the driving component (3) is coaxially connected to the connecting shaft (4) through the rod connecting sleeve (8).

3. A device for simulating dynamic waterproof test of vehicle-mounted sample according to claim 2, characterized in that, The plastic bucket (1) has a motor fixing bracket (9) on the edge of its opening. The drive unit (3) is mounted on the motor fixing bracket (9) and its output shaft passes through the motor fixing bracket (9) and extends into the plastic bucket (1).

4. The apparatus for simulating dynamic waterproofing tests of vehicle-mounted samples as described in claim 1, characterized in that, The bottom fixing frame (2) is a cross-shaped body.

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