| 1. Specifications |
| IPX1～IPX2 |
Spray water temperature: the temperature difference between the water temperature and the sample shall not be greater than 5 ℃, and the water temperature shall not be lower than 5 ℃ |
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Pinhole diameter: Ø 0.8mm (replaceable) |
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The minimum distance between the nozzle and the sample is 200mm |
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Needle tube spacing: 20mm |
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Test bench speed: (1 ~ 20) R / min (settable) |
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Test bench size: Φ 600mm* 600mm |
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Load bearing of test bench: ≤ 30kg (customizable) |
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Centrifugal distance: 100mm |
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Other requirements: the test bench can adjust the angle |
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IPX3～IPX4
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Radius of spray ring: R400mm |
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Orifice diameter: Φ 0.4mm (replaceable) |
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The maximum distance between the nozzle and the sample is 200mm |
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Spacing between two holes: 50mm |
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Diameter of water spray pipe: Φ 16mm |
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Swing of spray pipe: the swing angle of 0 ° ~ ± 165 ° can be set in the program and controlled by servo motor. It can stay at any position at any angle or adjust the angle manually. |
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Spray flow: 0.07l min ± 5% per hole (it can be set and displayed in the controller with the change of spray pressure) |
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Swing speed: 0 ~ 90 ° / S (settable) |
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Rotating speed of sample table: 0 ~ 17R / min (adjustable) |
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Test bench size: Φ 500mm (customizable) |
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Load bearing of sample table: ≤ 30kg (customizable) |
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Others: the number of openings and total water flow of the customized swing tube meet the requirements of various swing tube radii in Table 9 of gb4208-2017; According to gb4208-2017, it is equipped with a water spray and splash proof sprinkler |
| IPX5 |
Nozzle inner diameter: 6.3mm; |
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Water flow: (12.5l ± 0.625) L/ min (the controller can be set and displayed) |
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Test time: at least 3min; |
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Distance from nozzle to shell surface: 2.5m ~ 3m |
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The central part of the main flow: a circle with a diameter of about 40mm at 2.5m from the nozzle |
| IPX6 |
Nozzle inner diameter: 12.5mm; |
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Water flow: (100L ±5)L/min (the controller can be set and displayed) |
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Test time: at least 3min; |
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Distance from nozzle to shell surface: 2.5m ~ 3m |
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The central part of the main flow: a circle with a diameter of about 120mm at 2.5m from the nozzle |
| IPX6K |
Nozzle inner diameter: 6.3mm;Replaceable. The material is copper. |
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Water flow: (75±5)L/min (the controller can be set and displayed) |
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Distance from nozzle to shell surface: 2.5m ~ 3m |
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Test time: at least 3min; |
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Water pressure: at least 1000kPa |
| IPX9K |
Continuous working time: ≥5H |
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Spray ring angle: 0°, 30°, 60°, 90°, sample size angle position adjustable |
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Nozzle angle: ± 15°, you can choose 1 nozzle test alone or 4 nozzle combination test |
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High temperature water temperature: room temperature ~ 100 °C, resolution ≤ 0.1 °C; water spray temperature: 80 °C±5 °C, temperature fluctuation ≤ 1 °C, water heating rate: room temperature ~ 85 °C, the average ≥ 1 °C / min. |
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Spray time: 1 ~ 900 seconds, adjustable setting |
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Water spray distance: 100mm~ 150mm distance from the center of the turntable can be manually adjusted. |
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Water spray pressure: 8 ~ 10MPa, adjustable settings. |
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Water spray flow: (14 ~ 16) L / min, adjustable setting. |
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Turntable shelf speed: 1 ~ 12 r / min, adjustable settings. |
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Turntable height: 0 ~ 400mm, adjustable setting. |
| 1.2 Test Standards |
1. ISO16750-1-2006 environmental conditions and tests for electrical and electronic equipment of road vehicles (general provisions)
2. Din40050-9 enclosure protection class IP code
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3. Iso20653 road vehicles - degree of protection (IP code) - protection of electrical equipment against foreign objects, water and contact |
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4. IEC60529 electrical enclosure protection classification (IP) code |
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5. GMW 3172 (2007) General requirements for vehicle environment, reliability and performance
6.Vw80106-2008 general test conditions for electrical and electronic components of automobiles
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7.QC / T 417.1 (2001) vehicle harness connector part 1 |
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8.Gb4208 enclosure protection grade |
| 2. Rain system |
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IPX1,IPX2
IPX3,IPX4,IPX4K
IPX5,IPX6,IPX6K
IPX9K
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| 2.1 Structure |
1.The adjustment of spray rainfall is achieved by the control water pressure flow system mainly composed of electronic frequency conversion booster pump and flow sensor;
2. In order to ensure the long-term cleanness of the waterway, when the rainwater test stops, the water in the water pipe will automatically return to the water tank, and the drip pan will add compressed air to purge and squeeze the accumulated water, so that there is no water in the water pipe and drip head, so as to prevent the blockage caused by the corrosion of the pipeline water body for a long time;
3. As the test will produce a large amount of rainwater flow, the rainwater falling from the test will be centrally recovered through the overflow port at the bottom of the inner box working chamber, and recycled after treatment through the filter.
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| 2.2 Electric rotary sample placing table |
The device is used to place the test material. The rotary table device can manually adjust the position by moving left and right through the casters installed at the bottom. The rotation speed and rotation angle can be controlled and set through the touch interface keys (the picture is for reference only)
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2.3
Waterway circulation
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The accumulated water after the rain test can be recycled into the multi-stage sedimentation tank and reused after filtration; It can also be directly discharged into the drainage ditch at the customer's site |
| 2.4 Drainage floor drain |
There are drainage ditches and holes at the bottom of the test chamber. After the rain test, the accumulated water enters the sedimentation tank and is reused after filtration. The drainage ditch is flat with the ground and does not affect the load-bearing of the bottom plate of the test chamber and the access of test products |
| 2.5 Water pressure and flow control mode |
The closed-loop feedback control system is composed of water pressure sensor, water flow sensor, controller, solenoid valve, ad drive module, frequency converter and water pressure flow regulating pump. Through p.i.d control algorithm, the water pressure flow of the nozzle in the test chamber can be adjusted and controlled in real time and dynamically. (pictures are for reference only) |
| 2.6 Driver |
Digital signal driven stepless frequency converter and ad drive module (the picture is for reference only)
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| 2.7 Actuator |
Horizontal multistage centrifugal water pump with low noise, compact structure and small installation space shall be selected (the picture is for reference only)
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| 2.8 Water pressure flow sensor |
Picture of electronic liquid flow sensor (for reference only)
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| 2.9 Water nozzle |
Special rain drip test nozzle and water spray test nozzle (the picture is for reference only) |
| 2.10 Condensate drain hole |
Drain holes with working room condensate and Unit Condensate |
| 2.11 Overflow hole |
An overflow hole is set inside the box to guide the drainage of condensed water in the test box |
| 2.12 Swing tube |
The swing tube is pulsed by the PLC to the servo, and the servo motor is controlled to drive the swing tube angle and swing tube speed to achieve accurate positioning of the swing tube. The test water is connected with the spindle of the pendulum pipe through the high-speed rotating joint to ensure that there is no water leakage, and the water enters the pendulum pipe pipe during operation, and then shoots out through the nozzle to realize the pendulum pipe rain test.
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2.13 IPX5,IPX6,IPX6K
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IPX5, IPX6, IPX6K nozzle is a removable device, when IPX5, IPX6, IPX6K test, the special test jet rack is moved to the equipment before the fast clip is fixed, and then connected with a quick water pipe fitting. Since the test requires that the nozzle distance from the sampler be 2.5 to 3.0 meters, the mobile sprinkler frame can make more efficient use of the experimental space, and when it is used up, it will be moved to the side and will not occupy the site.
During the test, there is an isolation device to prevent water from spilling out of the equipment
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| 2.14 IPX9K |
A.Structure mode: IPX9K test for high temperature and high pressure flushing test, this test device in other working modes automatically shrink the back of the inner box, when selecting this working mode, the pendulum test elbow automatically swing to the bottom of the avoidance position, IPX9K automatically extends to the test position: the center of the test turntable. At the same time, the inner box drainage method automatically switches to the high temperature water tank drainage to prevent the cooling of the water temperature too fast.
B. Water temperature control mode: by the temperature sensor, controller, solid state relay drive module, high temperature water tank, low temperature water tank, electric heater actuator to form a closed-loop feedback heating control system, through the P.I.D control algorithm, real-time dynamic temperature control of the test water fine and fast. If the temperature is overheated due to the test, the low temperature water is quickly replenished and cooled down, so that the water temperature reaches the set temperature. At the same time, the high temperature water tank is equipped with a high temperature circulation water pump, so that the water temperature has always been in a uniform state. If the water temperature of the high temperature water tank is insufficient during the test, the equipment will wait for the water temperature to rise to the set temperature before continuing to work. The heating driver adopts a solid-state relay SSR, which converts the heating amount control signal output by the central controller, and drives the electric heater of the water tank to work to control the water temperature and control the large current with a small current. The heating actuator is a UL type electric heater encapsulated in a high temperature corrosion resistant corrosion resistant alloy material.
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| 3 Electric control system |
| 3.1. The main electrical accessories are international first-line brands, such as leakage protector, AC contactor, intermediate relay, etc. Schneider of France, ls of Korea and OMRON of Japan are used, Samwon tech of Korea is used for controller ACU and DCU module, Gallo Gavazzi of Switzerland is used for solid-state relay, and phoenix of Germany is used for electrical connector board. High quality electrical components are used to ensure the long-term stable operation of the system |
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3.2 The electric control device is equipped with a distribution board for centralized installation and management, so that the electric control system is modularization designed for power distribution and convenient for inspection and maintenance
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3.3 All electric control components and circuits are equipped with marks and wire numbers to standardize electrical assembly and facilitate inspection and maintenance:
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| 3.4. Water and electricity separation and assembly structure: adopt the structural design of separation and independent assembly of waterway system and electric control system to ensure the safety and reliability of the test box (exclusive patent, patent No.: zl201220245236.8) |
| 4.Main control system of test chamber |
| 4.1 control system |
PLC module + integrated color LCD touch screen main brain controller |
| 4.2 Display accuracy |
Temperature ≤ 0.1 ℃; Water pressure ≤ 0.1hpa; Water flow ≤ 0.1 L / min; Time ≤ 0.1min |
| 4.3 Setting mode |
It has two modes: constant (manual) parameter setting and program setting:
Constant (manual) parameter setting: rain intensity and drip intensity;
Program setting: rain intensity, raindrop intensity and test time
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| 4.4 Control mode |
It has two control modes: constant (manual) and program automatic:
Constant (manual) control: manual start and manual stop when the time reaches.
Automatic program control: program start or delay start and automatic stop when the time reaches
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| 4.5 Display interface |
800x480 dot matrix resolution, TFT color LCD display |
| 4.6 Other functions |
4.6.1 fault alarm, cause and handling prompt function
4.6.2 power off protection function
4.6.3 upper and lower limit temperature protection function
4.6.4 calendar timing function (automatic start and automatic stop)
4.6.5 post function.
4.6.6 setting parameters of password protection controller can be customized
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| 4.7 Data storage and function interface |
4.7.1 local data storage: the storage information includes main test parameters such as test date and time, test target value and test measured value. The storage sampling time can be set, and the test data of no less than 1 year can be stored. The data can be exported through external storage medium (USB flash disk);
4.7.2 USB data interface: the controller can expand the USB interface and support the function of downloading data
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| 5. Electric control safety protection device of test box |
| 5.1 Work room |
5.1.1 independent studio over temperature protector
5.1.2 overload protection of air handling fan
5.1.3 cabin positive pressure monitoring
5.1.4 cabin wind speed detection
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| 5.2 Waterway system |
5.2.1 overload protection of water booster pump
5.2.2 water pipe water pressure overload protection
5.2.3 low water level protection of water tank
5.2.4 overflow protection of water storage tank
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5.3 Power supply system
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5.3.1 power supply phase loss and phase sequence error protection
5.3.2 independent short-circuit over current protection of control line
5.3.3 independent short-circuit over current of high current main circuit
5.3.4 leakage protection of ELBC leakage circuit breaker and RC electronic surge prevention protection
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| 5.4 Others |
5.4.1 compressed air shortage detection reminder
5.4.2 test chamber shell grounding protection
5.4.3 electrical protection of other auxiliary control devices and personnel safety protection
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