Ice water immersion testing device for vehicle
By designing an ice water immersion test device for vehicles, the problems of low automation and poor versatility of existing equipment have been solved, enabling efficient and safe testing of small samples, reducing costs and improving the consistency and flexibility of testing.
Patent Information
- Application Number
- CN202423139456.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing automotive ice and water immersion test equipment has low automation, poor versatility, and high cost, making it difficult to meet the testing needs of small samples and unable to monitor the sample status in real time, posing safety hazards.
A vehicle-mounted ice water immersion test device was designed, comprising a walk-in environmental chamber, a test bench, a high-temperature resistant cylinder, a cold water tank, a temperature sensor, and an industrial control computer. It achieves automated control and real-time monitoring, and is equipped with a voltage sensor and an alarm to ensure safety.
It improves the automation and safety of small-scale prototype testing, reduces costs, shortens testing cycles, ensures testing consistency and flexibility, and enables rapid response to safety risks in extreme situations.
Smart Images
Figure CN223664190U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automotive ice water impact-immersion durability testing equipment. Background Technology
[0002] With the booming development of the automotive industry and the rapid development of new models in recent years, the domestic and international automotive markets have put forward new requirements for the progress and cost of extreme environment testing of electronic and electrical components. In order to meet the growing demand, mainstream OEMs have established their own corporate standards for electronic and electrical ice water shock-immersion testing (for example, Hongqi's reference standard: JA3700-MH-6 6.9.2 section, or VW80000-2021K13, which specifies a particular ice water shock test to accelerate the environmental tolerance of the test object).
[0003] Given the numerous standards for automotive ice and water immersion and the diverse characteristics of the selected ice and water immersion tests, most of them show varying performance in accelerating the ice and water immersion test environment. As a corporate standard for automotive OEMs, it is once again receiving attention.
[0004] Current equipment used for testing the durability of ice water impact-immersion tests has the following drawbacks:
[0005] A. Low level of automation; automotive electronics and electrical systems, due to the diverse range of products, JA 3700-MH-6
[0006] Section 6.9.2, the text and parameters in the ice water immersion standard are too simple, making it difficult to ensure that the test parameters meet the requirements. For example, manual immersion cannot guarantee switching within 5 seconds, which affects the consistency and compliance of the test, and requires personnel to cooperate in the test.
[0007] B. Poor versatility: Large temperature shock chambers require custom development by the original manufacturer, typically for large prototypes such as battery packs, resulting in high costs. Directly using them for small prototypes is wasteful. There are no mature solutions on the market for small samples, and the universal testing requirements for different electronic and electrical models are difficult to meet. Furthermore, the setup time and switching accuracy of on-site ice-water immersion tests severely impact the testing schedule.
[0008] C. During testing, the test bench cannot be linked with the sample status. For example, if the sample is waterlogged and fails, or if it is malfunctioning, or even if there is high voltage leakage, it cannot react quickly.
[0009] Overall, existing equipment for testing the durability of ice water impact-immersion tests is suitable for small test specimens, has limited functionality, poor flexibility, and high cost. Utility Model Content
[0010] The purpose of this invention is to provide a vehicle ice water immersion test device specifically designed for testing small parts, addressing the aforementioned limitations of the prior art, thereby improving testing efficiency and reducing costs.
[0011] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0012] A vehicle-mounted ice water immersion testing device includes a walk-in environmental chamber, a test bench, a high-temperature resistant cylinder, a cold water tank, three-stage water level sensors, a first temperature sensor, a second temperature sensor, a chiller, and an industrial control computer. The high-temperature resistant cylinder is vertically positioned inside the cold water tank. The bottom of the test bench is connected to the piston rod of the high-temperature resistant cylinder, and moves up and down under the control of the cylinder (moving upwards out of or downwards into the cold water tank). The bottom of the cold water tank has an inlet and an outlet. The first temperature sensor is located inside the test bench and is used to monitor and transmit high-temperature data to the industrial control computer. The second temperature sensor is located inside the test bench. Inside the cold water tank, low-temperature data is monitored and transmitted to the industrial control computer. Three water level sensors are located at the bottom, half-water level, and 75% water level of the cold water tank, respectively, to monitor and transmit water level data to the industrial control computer. The test bench, high-temperature cylinder, and cold water tank are placed inside a walk-in environmental chamber after the sample is placed on the test bench. During testing, the chiller is connected to the inlet and outlet at the bottom of the cold water tank via pipes for injecting and draining cold water. The industrial control computer collects data from the first temperature sensor, the second temperature sensor, and the three water level sensors, and controls the high-temperature cylinder and the chiller.
[0013] Furthermore, the walk-in environmental chamber is a temperature-controlled chamber, adjustable from 65-160℃.
[0014] Furthermore, when the test bench is filled with ice water at a set temperature in the cold water tank, it is completely positioned inside the cold water tank within 20 seconds under the control of the high-temperature resistant cylinder.
[0015] Furthermore, a voltage sensor is installed inside the chilled water tank, and an alarm is installed on the top of the chiller. The alarm is used to receive the voltage signal from the voltage sensor and to sound an alarm when the voltage exceeds the rated voltage.
[0016] Furthermore, the chiller can control the water temperature down to zero degrees Celsius.
[0017] The beneficial effects of this utility model are:
[0018] This utility model provides an automotive ice-water immersion testing device, primarily designed for general testing of small automotive samples. It features low-cost component configurations, requires minimal ice water usage, has a simple structure, and can rapidly switch between testing temperature environments strictly according to requirements. It also monitors the sample status in real time, enabling actions such as stopping the experiment and ceasing immersion. In extreme cases, such as high-voltage leakage caused by seal failure due to high or low air pressure, it can quickly cut off the main power supply to the test sample, protecting the safety of testing personnel and equipment.
[0019] In addition, with a complete set of small, proprietary, and general-purpose testing equipment, testers no longer need to set up equipment on-site, which greatly reduces the product testing cycle and testing costs.
[0020] The technical solution of this utility model will be illustrated below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the planar structure of the vehicle ice water immersion test device provided in the embodiment of this utility model from the main view direction.
[0022] Figure 2 This is a top-view schematic diagram of the planar structure of the vehicle ice water immersion test device provided in this embodiment of the utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Walk-in environmental chamber; 2. Test bench; 3. High-temperature resistant cylinder
[0025] 4. Cold water tank, 401 inlet, 402 outlet
[0026] 5 Three-stage water level sensor, 6 First temperature sensor, 7 Second temperature sensor
[0027] 8. Chiller, 801. Inlet pipe, 802. Inlet pump, 803. Return pipe, 804. Return pump
[0028] 9. Industrial control computer; 10. Voltage sensor; 11. Alarm device Detailed Implementation
[0029] The specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosed technical solutions. It should also be noted that, for ease of description, the accompanying drawings show only the parts relevant to the technical solutions of this application, not the entire structure.
[0030] Before discussing the exemplary embodiments in more detail, it should be mentioned that the structure of the device components and / or modules mentioned in the embodiments, unless otherwise described in detail, is something that can be understood by those skilled in the art based on existing public technologies or is a commercially available product.
[0031] refer to Figure 1 and Figure 2 This embodiment provides a vehicle ice water immersion test device, including a walk-in environmental chamber 1, a test bench 2, a high-temperature resistant cylinder 3, a cold water tank 4, a three-stage water level sensor 5, a first temperature sensor 6, a second temperature sensor 7, a chiller 8, and an industrial control computer 9. The high-temperature resistant cylinder 3 is vertically installed inside the cold water tank 4. The bottom of the test bench 2 is connected to the piston rod of the high-temperature resistant cylinder 3, and moves upward or downward into the cold water tank 4 under the control of the high-temperature resistant cylinder 3. The bottom of the cold water tank 4 is provided with an inlet and an outlet. The first temperature sensor 6 is installed inside the test bench 2 and is used to monitor and transmit high-temperature data to the industrial control computer 9. The second temperature sensor 7 is installed inside the cold water tank 4. Inside the water tank 4, low-temperature data is monitored and transmitted to the industrial control computer 9. There are three water level sensors 5, which are respectively located at the bottom, half-water level and 75% water level of the cold water tank 4, and are used to monitor and transmit water level data to the industrial control computer 9. The test bench 2, the high-temperature resistant cylinder 3 and the cold water tank 4 are placed in the walk-in environmental chamber 1 after the sample to be tested is placed on the test bench 2. The chiller 8 is connected to the inlet and outlet of the bottom of the cold water tank 4 through pipes during testing, and is used to inject cold water and drain water. The industrial control computer 9 is used to collect data from the first temperature sensor (6), the second temperature sensor (7) and the three-stage water level sensor (5), and to control the high-temperature resistant cylinder 3 and the chiller 8.
[0032] The walk-in environmental chamber 1 can be a regular temperature control chamber, which needs to be adjustable from 65-160℃.
[0033] When the test bench 2 is filled with ice water at a set temperature in the cold water tank 4, the immersion test begins. The high-temperature resistant cylinder 3 should preferably pull the test sample into the cold water in the cold water tank 4 within 20 seconds.
[0034] To prevent extreme situations, such as high-voltage leakage caused by seal failure due to high or low air pressure, the main power supply to the test sample needs to be quickly cut off to protect the personal safety of the test personnel. A voltage sensor 10 can be further installed inside the chilled water tank 4, and an alarm 11 can be installed on the top of the chiller 8. The alarm 11 receives the voltage signal from the voltage sensor 10 and sounds an alarm when the voltage exceeds the rated voltage.
[0035] During the immersion experiment, the temperature inside the cold water tank 4 is required to be 0-4℃. Therefore, the water injected needs to be at zero degrees. The water injected by the chiller 8 should ideally be controlled to be around zero degrees to achieve this.
[0036] Before starting the test, push the test bench, high-temperature cylinder, and cold water tank into the walk-in environmental chamber and set the temperature of the environmental chamber for high-temperature sample storage. The high-temperature storage time is set on the industrial control computer. Similarly, set the low-temperature threshold, immersion time, and number of immersion cycles in the cold water tank on the industrial control computer. After all settings are complete, close the door of the walk-in environmental chamber.
[0037] Turn on the chiller and fill its low-temperature water storage tank with water. Activate the immersion step, and the chilled water in the chiller will enter the cold water tank through the water pipes. When the three-stage water level sensor detects that the water level has reached the second level (75%), the chiller's return water pump will start, maintaining 100% water circulation in the cold water tank.
[0038] When the second sensor detects that the water temperature reaches 0-4℃, it transmits data to the industrial control computer, which then activates the high-temperature resistant cylinder. This cylinder lowers the test platform and the sample until the sample is completely submerged in the cold water. After a set time, the high-temperature resistant cylinder lifts the sample out of the immersion area of the cold water tank. This immersion process completes one cycle, followed by a waiting period before starting the next cycle, until all cycles are complete.
[0039] If the voltage sensor in the immersion area detects leakage voltage, it will cut off the high and low voltage power supply to the sample, sound an alarm continuously, terminate the test, and ensure the safety of test personnel and equipment.
Claims
1. A vehicle ice water immersion test device, characterized in that: The test bench includes a walk-in environmental chamber (1), a test stand (2), a high-temperature resistant cylinder (3), a cold water tank (4), a three-stage water level sensor (5), a first temperature sensor (6), a second temperature sensor (7), a chiller (8), and an industrial control computer (9). The high-temperature resistant cylinder (3) is vertically installed inside the cold water tank (4). The bottom of the test stand (2) is connected to the piston rod of the high-temperature resistant cylinder (3) and moves up and down under the control of the high-temperature resistant cylinder (3). The bottom of the cold water tank (4) is provided with an inlet and an outlet. The first temperature sensor (6) is installed inside the test stand (2), and the second temperature sensor (7) is installed in the cold water tank. (4) Inside; there are three water level sensors (5), which are respectively located at the bottom, half water level and 75% water level of the cold water tank (4); the test bench (2), the high temperature cylinder (3) and the cold water tank (4) are placed in the walk-in environmental chamber (1) after the sample to be tested is placed on the test bench (2); the chiller (8) is connected to the inlet and outlet of the bottom of the cold water tank (4) through a pipe during the test, and is used to inject cold water and drain water; the industrial control computer (9) is used to collect data from the first temperature sensor (6), the second temperature sensor (7) and the three water level sensors (5), and to control the high temperature cylinder (3) and the chiller (8).
2. The vehicle ice water immersion test device as described in claim 1, characterized in that: The walk-in environmental chamber (1) is a temperature control chamber with an adjustable temperature of 65-160℃.
3. The vehicle ice water immersion test device as described in claim 1, characterized in that: The cold water tank (4) is equipped with a voltage sensor (10), and the top of the chiller (8) is equipped with an alarm (11); The alarm (11) is used to receive the voltage signal from the voltage sensor (10) and to sound an alarm when the voltage exceeds the rated voltage.
4. The vehicle ice water immersion test device as described in claim 1, characterized in that: The chiller (8) has an outlet water temperature of 0°C.