ISO 16750-4 Auto Parts Test Equipment Splash Water And Submersion
Test Chamber
Standard:
ISO16750-4 Road vehicles-Environmental conditions and testing for
electrical and electronic equipment-Part 4: Climatic loads, clause
5.4.2 Ice water shock test.
VW-80000 Electric And Electronic Components In Motor Vehicles up to
3.5t General Requirements, Test Conditions and Tests clause 9.12
K-12 Temperature Shock With Splash Water;
GB/T 28046.4-2011 Auto Parts Test Equipment
Purpose:
This test simulates a thermal shock induced by ice water and
applies to products in the splash areas of the vehicle. The purpose
of this test is to simulate ice water splashing over a hot
system/component. This happens when driving on wet roads during the
winter. Failure modes are mechanical cracking of materials or seal
failures caused by different temperature expansion coefficients.
It is a reliability test equipment for various kinds of electronic,
electrical, plastic and other raw materials and devices for cold
resistance, heat resistance, ice water splash resistance test, ice
water immersion resistance test and quality control engineering
reliability test equipment.
Test method:
Splash water test:
Heat the DUT in a hot air oven at T max for the specified holding time, t h . Then splash the DUT with ice water for 3 s.
If the DUT is splashed in the vehicle from only one direction,
splash it from this direction only while it is in an as-installed
position. If the equipment is splashed from various directions in
the vehicle, then these directions shall be taken into account. In
this case, use a new DUT for each splash direction. The width of
the splash directed at the DUT shall always be greater than the
width of the DUT. If the DUTs to be splashed prove too big for one
jet, arrange several jets in a row to produce a line of splash
impact on the DUT. See Figures 4 to 6.
Test parameters include:
⎯ number of cycles: 100;
⎯ holding time, t h , at T max : 1 h or until DUT temperature stabilization is reached;
⎯ transition duration: < 20 s (for manual transition of DUT
between temperature storage and splashing);
⎯ test fluid: de-ionized water;
⎯ water temperature: 0 °C to +4 °C;
⎯ water flow: between 3 l and 4 l per 3 s (splash duration);
⎯ distance between jet and DUT surface: (325 ± 25) mm (water shall
be applied over the complete width of the DUT);
⎯ operating modes: see Figure 5;
⎯ orientation of the DUT: as in the vehicle. Auto Parts Test Equipment
Submersion test:
Connect the DUT to the test equipment. Operate the DUT in a hot air
oven at T max for the specified holding time, t h. With the device still operating, submerge it for 5 min in an ice
water tank at least 10 mm deep.
Test parameters include:
⎯ number of cycles: 10;
⎯ holding time, t h , at T max : 1 h or until DUT temperature stabilization is reached;
⎯ transition duration: < 20 s;
⎯ test fluid: de-ionized water;
⎯ water temperature: 0 °C to +4 °C;
⎯ immersion time: 5 min;
⎯ operating mode: 3.2 in accordance with ISO 16750-1;
⎯ orientation of the DUT: as in the vehicle.
Parameter:
| Inner size | 1000*1000*1000mm |
| Outer size | 1650*1800*2300mm |
| Submersion area size | 500*500*500mm |
| Jet qty. | 1 |
| Jet position | Right side of the inner chamber |
| Distance between jet and DUT surface | 325 ± 25 mm (Can be adjusted manually) |
| Jet water flow | 3-4L/3S |
| Water temperature control range | 0-+4°C |
| Temperature range | RT+10°C -150°C |
| Cooling rate | 25°C-2°C≤60min |
| Heating rate | RT+10°C -150°C≤45min |
| Injection time per cycle (30min) | 3S, interval time: 29m57s (touch screen setting) |
| Cycle | 100times (touch screen setting) |
