Low-temperature experiment cabin for vehicle detection
The integrated low-temperature test chamber design solves the problem that existing technologies cannot simultaneously simulate high humidity and precipitation conditions, enabling comprehensive simulation of vehicles under extreme environments, improving test accuracy and safety, simplifying the operation process and reducing costs.
Patent Information
- Application Number
- CN202423303543.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing cryogenic test chambers cannot simultaneously simulate high humidity or precipitation conditions, resulting in inaccurate test results for vehicles in extreme environments, increasing testing costs and time, and failing to assess vehicle performance in humid environments.
Design an integrated cryogenic experimental chamber, including an experimental chamber, a rotating plate, a fixed block, a cylinder, a refrigeration module, a temperature sensing module, a monitoring module, a water spray module, and an air circulation module, to simultaneously simulate low temperature and high humidity environments. The rotating plate and hydraulic cylinder work together to automatically control vehicle entry and exit. The inclined bottom structure and drainage system ensure the dryness and safety of the experimental environment.
It enables comprehensive simulation of multiple environmental factors for vehicles under extreme climatic conditions, improving the accuracy and safety of testing, simplifying the operation process, reducing testing costs, and ensuring the cleanliness and stable operation of the equipment.
Smart Images
Figure CN223761052U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle low-temperature testing technology, and in particular to a low-temperature test chamber for vehicle testing. Background Technology
[0002] With the intensification of global climate change, extreme cold and wet weather conditions (such as rain, snow, freezing rain, etc.) have an increasingly significant impact on vehicle performance. To ensure the safety and reliability of vehicles in these harsh environments, manufacturers need to conduct rigorous low-temperature and wet environment tests.
[0003] Most existing cryogenic testing chambers can only simulate a single cryogenic environment and cannot simultaneously simulate high humidity or precipitation conditions. This means that test results only reflect the vehicle's performance under cryogenic conditions, ignoring the impact of humid environments on its performance. For example, the performance of a vehicle's electronic control systems, sealing, and defrosting / defogging systems under humid conditions cannot be fully evaluated. To simulate different environmental conditions, manufacturers typically need to transfer vehicles to multiple different testing chambers for step-by-step testing. This not only increases testing costs and time but may also lead to inconsistencies in testing conditions, affecting the accuracy of test results. Utility Model Content
[0004] In order to overcome the above-mentioned shortcomings, the technical problem of this utility model is to provide a low-temperature test chamber for vehicle testing.
[0005] A low-temperature test chamber for vehicle testing includes a test chamber, a rotating plate, fixed blocks, cylinders, a cooling module, a temperature sensing module, a monitoring module, a water spray module, and an air circulation module. The rotating plate is rotatably connected to the left side of the test chamber. Fixed blocks are symmetrically installed on the left side wall of the test chamber, and each fixed block is rotatably connected to an inclined cylinder. The cylinder extension rods are rotatably connected to the rotating plate. Cooling modules are installed through the test chamber on both sides to regulate the temperature inside the test chamber, ensuring and maintaining the required low-temperature conditions. A temperature sensing module is installed on the right rear side of the test chamber for real-time monitoring of temperature changes. An air circulation module is installed in the upper left rear corner of the test chamber to promote air circulation. A water spray module is installed at the top of the test chamber, and a monitoring module is installed in the upper right rear corner of the test chamber. The cylinders, cooling module, temperature sensing module, monitoring module, water spray module, and air circulation module are all electrically connected to a central control system.
[0006] To further explain, the bottom of the experimental chamber is sloping, with the right side lower than the left.
[0007] To further explain, it also includes a hydraulic cylinder and a top block. The hydraulic cylinder is installed on the bottom right side of the experimental chamber. The hydraulic cylinder is electrically connected to the central control system. The top block is connected to the extension rod of the hydraulic cylinder. The top surface of the top block is arc-shaped and conforms to the arc surface of the car tire.
[0008] Further explanation: It also includes a drain pipe and a filter screen. The drain pipe is connected to the bottom right side of the experimental chamber. The front end of the drain pipe extends out of the experimental chamber. Multiple branch pipes are installed on the drain pipe to provide multiple channels. A filter screen is connected to the port of each branch pipe.
[0009] Further explanation: It also includes electric push rods and push plates. Two electric push rods are installed in the experimental chamber near the drain pipe. A push plate is connected between the extension rods of the electric push rods. The push plate and the diversion pipe of the drain pipe are on the same horizontal plane. The electric push rods are electrically connected to the central control system. A collection trough is opened at the bottom of the experimental chamber on the right side of the drain pipe.
[0010] To further explain, it also includes anti-slip blocks; several anti-slip blocks are equidistantly placed on the front and back sides of the bottom of the experimental chamber.
[0011] Compared with the prior art, the present invention has the following advantages: 1. The cooling module and the water spraying module are integrated in the experimental chamber, which enables the experimental chamber to simulate low temperature and high humidity environments at the same time, including severe weather conditions such as rain, snow and freezing rain. This comprehensive simulation of multiple environmental factors is closer to the actual use scenario and can more accurately evaluate the performance of the vehicle under extreme climatic conditions, providing valuable data support for product development and quality assurance.
[0012] 2. By coordinating the rotating plate and hydraulic cylinder, automatic control of the experimental chamber entrance is achieved, which not only facilitates smooth vehicle entry but also improves operational efficiency. Furthermore, a liftable top block installed at the bottom of the experimental chamber provides stable support for the vehicle's front wheels during testing, preventing accidental slippage and significantly enhancing the safety and reliability of the test.
[0013] 3. The bottom of the experimental chamber is designed with an inclined structure, which helps guide wastewater to flow along the slope and be discharged smoothly through the drain pipe, effectively avoiding water accumulation and keeping the experimental environment dry and clean. At the same time, the filter screen can intercept larger impurities and prevent pipe blockage. In order to further maintain the cleanliness of the system, a push plate is specially set up to scrape off the impurities accumulated on the filter screen when needed, simplifying subsequent cleaning work and ensuring the long-term stable operation of the equipment. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional structural diagram of the experimental chamber, refrigeration module, and water spray module of this utility model.
[0016] Figure 3 This is a partial cross-sectional view of the first type of experimental chamber component of this utility model.
[0017] Figure 4 This is a second partial cross-sectional view of the experimental chamber component of this utility model.
[0018] The markings in the attached diagram are: 1. Experimental chamber, 2. Rotating plate, 3. Fixed block, 4. Cylinder, 5. Refrigeration module, 6. Temperature sensing module, 7. Monitoring module, 8. Water spray module, 9. Air circulation module, 10. Hydraulic cylinder, 11. Top block, 12. Drain pipe, 13. Filter screen, 14. Collection tank, 15. Electric push rod, 16. Push plate, 17. Anti-slip block. Detailed Implementation
[0019] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.
[0020] Example: A cryogenic testing chamber for vehicle testing, such as Figures 1-4As shown, the system includes an experimental chamber 1, a rotating plate 2, fixed blocks 3, cylinders 4, a refrigeration module 5, a temperature sensing module 6, a monitoring module 7, a water spray module 8, and an air circulation module 9. The rotating plate 2 is rotatably connected to the left side of the experimental chamber 1. Fixed blocks 3 are symmetrically installed on the left side wall of the experimental chamber 1, with inclined cylinders 4 rotatably connected to each fixed block 3. The extension rods of the cylinders 4 are rotatably connected to the rotating plate 2. Extending the extension rods of the cylinders 4 pushes the rotating plate 2 to open, allowing vehicles to drive into the experimental chamber 1. The cylinders 4 themselves also change angle due to the rotation of the rotating plate 2, ensuring a smooth and reliable opening and closing process. Refrigeration modules 5 are installed through the front and rear sides of the experimental chamber 1, responsible for regulating the temperature inside the experimental chamber 1 to ensure and maintain the required low-temperature conditions. The refrigeration modules 5 achieve efficient cooling through components such as compressors, condensers, and evaporators, supporting gradual cooling or heating processes to avoid unnecessary stress on the vehicle. A temperature sensing module 6 is bolted to the rear right side of the experimental chamber 1 for real-time temperature monitoring. The temperature changes inside the test chamber 1 are monitored. The temperature sensing module 6 uses a high-precision temperature sensor to ensure the accuracy and reliability of the data. An air circulation module 9 is installed in the upper left corner of the rear of the test chamber 1 to promote air circulation and ensure uniform temperature and humidity distribution. The air circulation module 9 achieves forced air convection through a fan or blower. A water spray module 8 is installed at the top of the test chamber 1 to simulate severe weather conditions such as rain, snow, and freezing rain, to evaluate the vehicle's performance in a humid environment. It is positioned at the top to ensure that the spray nozzles can evenly cover key parts of the vehicle. A monitoring module 7 is installed in the upper right corner of the rear of the test chamber 1 to monitor the environmental conditions and vehicle status inside the test chamber 1 in real time and record various parameters during the test. The bottom of the test chamber 1 is inclined, with the right side lower than the left, which facilitates the sliding of wastewater generated during the experiment along the inclined surface for easy subsequent discharge. The cylinder 4, cooling module 5, temperature sensing module 6, monitoring module 7, water spray module 8, and air circulation module 9 are all electrically connected to the central control system.
[0021] The central control system, as the core of the entire experimental chamber 1, is responsible for coordinating and managing the operation of all subsystems. Users can input test parameters, such as target temperature, humidity, spray intensity, and spray time, through a graphical interface or touch screen. According to the preset test program, the system automatically adjusts the operating status of each subsystem to ensure the continuity and consistency of the test process, monitors the operating status of each subsystem in real time, detects and reports any abnormalities, and helps to quickly troubleshoot problems.
[0022] like Figures 2-3As shown, it also includes a hydraulic cylinder 10 and a top block 11. The hydraulic cylinder 10 is installed on the bottom right side of the test chamber 1 by bolts. The hydraulic cylinder 10 is electrically connected to the central control system. The top block 11 is connected to the telescopic rod of the hydraulic cylinder 10. The top surface of the top block 11 is arc-shaped and fits the arc surface of the car tire. When the car drives into the test chamber 1, the hydraulic cylinder 10 is started by controlling the central control system. Its telescopic rod extends and drives the top block 11 to move upward. The top block 11 can hold the front wheel of the car, thereby limiting the position of the vehicle and ensuring its stability during the testing process to avoid displacement. After adjustment, the hydraulic cylinder 10 is turned off.
[0023] like Figure 2 and Figure 4 As shown, it also includes a drain pipe 12 and a filter screen 13. The drain pipe 12 is connected to the bottom right side of the experimental chamber 1. The front end of the drain pipe 12 extends out of the experimental chamber 1. Multiple diversion pipes are provided on the drain pipe 12 to provide multiple channels, which facilitates the rapid discharge of sewage in the experimental chamber 1 through the drain pipe 12. The ports of the diversion pipes are all connected to filter screens 13 to intercept impurities contained in the sewage and prevent the drain pipe 12 from becoming blocked.
[0024] like Figures 2-4 As shown, the test chamber 1 also includes an electric push rod 15, a push plate 16, and anti-slip blocks 17. Two electric push rods 15 are bolted to the test chamber 1 near the drain pipe 12. The push plate 16 is connected between the telescopic rods of the electric push rods 15. The push plate 16 is on the same horizontal plane as the diversion pipe of the drain pipe 12. The electric push rods 15 are electrically connected to the central control system. A collection trough 14 is provided at the bottom of the test chamber 1, located to the right of the drain pipe 12. The central control system controls the extension of the telescopic rods of the electric push rods 15 to move the push plate 16 to the right, which can push the impurities blocked on the filter screen 13 and push them into the collection trough 14 for subsequent cleaning. After the filter screen 13 is clear, the telescopic rods of the electric push rods 15 shorten and return to their original position, which drives the push plate 16 to move to the left and return to its original position. Several anti-slip blocks 17 are equidistantly arranged on the front and rear sides of the bottom of the test chamber 1 to provide anti-slip for the vehicle being tested and to ensure that the vehicle will not slide due to the wet ground during the test and when driving into the test chamber 1.
[0025] During low-temperature testing of the vehicle, the rotating plate 2 is first opened via cylinder 4. Then, the vehicle equipped with the sensor network is driven into the test chamber 1 and stopped at the designated position. The sensor network includes temperature sensors, humidity sensors, pressure sensors, voltage sensors, etc., used to collect key performance indicators and environmental parameters of the vehicle in real time. After the vehicle stops, the front wheels can be stopped by the lifting and adjusting push plate 16 to limit the vehicle's position and ensure stability during the testing process. Then, the central control system starts the cooling module 5 according to the preset test parameters to adjust the temperature in the test chamber. The cooling module 5 achieves efficient cooling through components such as compressor, condenser, and evaporator, gradually lowering the temperature to the predetermined low temperature value (such as -20℃ or lower) and maintaining it stably. The temperature sensing module 6 monitors the temperature changes in the test chamber in real time and feeds the data back to the central controller. The central controller adjusts the operating status of the cooling module 5 according to the real-time data to ensure that the temperature is always kept within the set range.
[0026] To ensure uniform temperature distribution within the test chamber, the central control system activates the air circulation module 9, using fans or blowers to promote forced air convection, ensuring that cool air evenly covers the entire chamber and preventing excessive local temperature differences. Based on testing requirements, the central control system activates the top-mounted water spray module 8 to simulate severe weather conditions such as rain, snow, and freezing rain. The water spray module 8 supports multiple spray modes (such as continuous spraying and intermittent spraying), and users can set the spray intensity and duration through the central control system. The spray liquid can be water or water containing salt (such as sodium chloride solution) to simulate different precipitation types. During the spraying process, the humidity within the test chamber gradually increases. Simulating rain and snow through the spray components checks the waterproof performance of the electronic control unit (ECU), sensors, and other electrical equipment, ensuring no moisture intrusion could cause short circuits. The monitoring module 7 records the environmental conditions and vehicle status within the test chamber in real time, and the monitoring video can... The data is transmitted in real time to the central control system, facilitating operator monitoring of the testing process. After environmental conditioning is completed, a series of static performance tests can be performed to evaluate the vehicle and its systems' performance in low-temperature and humid environments. The sensor network collects key performance indicators and environmental parameters of the vehicle in real time, such as temperature, humidity, pressure, and voltage. The central control system stores this data locally or uploads it to the cloud for subsequent analysis and report generation. Sensors are distributed in key parts of the vehicle, such as windows, doors, and electronic control units, providing accurate data support. Wastewater generated during the experiment is discharged through drain pipe 12. After the test, the central control system gradually raises the temperature inside the test chamber to room temperature to avoid damage to the vehicle from sudden temperature changes. The central control system controls the hydraulic cylinder 10 to retract the telescopic rod, the top block 11 to descend, releasing the restriction on the front wheels of the vehicle, and then the rotating plate 2 is opened, allowing the vehicle to drive smoothly out of the test chamber.
[0027] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.
Claims
1. A low temperature test chamber for vehicle detection, characterized by: The utility model relates to a low temperature test chamber, including experimental warehouse (1), rotating plate (2), fixed block (3), air cylinder (4), refrigeration module (5), temperature sensing module (6), monitoring module (7), water spraying module (8) and air circulation module (9), experimental warehouse (1) left side rotatory connection has rotating plate (2), the left side wall of experimental warehouse (1) is symmetrically installed fixed block (3), and the fixed block (3) is rotatory connection with oblique air cylinder (4) all, and the telescopic rod of air cylinder (4) is rotatory connected with rotating plate (2), and both sides of experimental warehouse (1) are installed with refrigeration module (5) through -type, are responsible for adjusting the temperature in experimental warehouse (1), ensure that reach and maintain the required low temperature condition, and the rear right side of experimental warehouse (1) is installed with temperature sensing module (6), is used for real -time monitoring the temperature change in experimental warehouse (1), and the rear left upper corner of experimental warehouse (1) is installed with air circulation module (9), is used for promoting the air circulation in experimental warehouse (1), and the top of experimental warehouse (1) is installed with water spraying module (8), and the rear right upper corner of experimental warehouse (1) is installed with monitoring module (7), and air cylinder (4), refrigeration module (5), temperature sensing module (6), monitoring module (7), water spraying module (8) and air circulation module (9) all are electrically connected with central control system.
2. The low temperature test chamber for vehicle detection according to claim 1, characterized in that: The bottom of the experimental warehouse (1) is inclined, with the right side being lower than the left side.
3. The low temperature test chamber for vehicle detection according to claim 2, characterized in that: The utility model also includes a hydraulic cylinder (10) and a top block (11), the hydraulic cylinder (10) is installed on the right side of the bottom of the experimental warehouse (1), the hydraulic cylinder (10) is electrically connected with the central control system, the top block (11) is connected to the telescopic rod of the hydraulic cylinder (10), the top surface of the top block (11) is arc-shaped, and it is in line with the arc surface of the automobile tire.
4. The low temperature test chamber for vehicle detection according to claim 3, characterized in that: The utility model also includes a drain pipe (12) and a filter screen (13), the drain pipe (12) is connected to the right side of the bottom of the experimental warehouse (1), The front end of the drain pipe (12) penetrates out of the experimental warehouse (1), a plurality of shunt pipes are arranged on the drain pipe (12), providing multiple channels, and the filter screen (13) is connected to the port of each shunt pipe.
5. The low temperature test chamber for vehicle detection according to claim 4, characterized in that: The utility model also includes an electric push rod (15) and a push plate (16), two electric push rods (15) are installed on the position close to the drain pipe (12) in the experimental warehouse (1), the push plate (16) is connected between the telescopic rods of the electric push rods (15), the push plate (16) is in the same horizontal plane as the shunt pipes of the drain pipe (12), the electric push rods (15) are electrically connected with the central control system, and the collection groove (14) is arranged on the right side of the drain pipe (12) at the bottom of the experimental warehouse (1).
6. The low temperature test chamber for vehicle detection according to claim 5, wherein: The utility model also includes a non-slip block (17), a plurality of non-slip blocks (17) are arranged on the front and rear sides of the bottom of the experimental warehouse (1) at equal intervals.