Weather Spray And Rain Test Chamber

SPECIFICATION

I. Automotive industry IP protection level requirements

Common waterproof rating and test scenarios for automotive parts:

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IPX4/IPX5/IPX6: Doors, lights, charging ports (against heavy rain, high pressure water spray from car wash).

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IPX7/IPX8: Battery pack, ECU controller (short-term immersion or deep water immersion).

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IPX9K: Engine compartment components (high temperature and high pressure steam cleaning).



Second, automotive waterproof test equipment classification

According to the IP level requirements, it is mainly categorized into the following types:

Equipment type

Test grade

Test Principle

Applicable parts

Pendulum spray test chamber

IPX3/IPX4

Pendulum multi-angle spraying (10 L/min, covering splashing water in all directions)

Lamps, mirrors, cameras

High-pressure spray test chamber

IPX5/IPX6

High-pressure nozzle directional spray (IPX5: 12.5 L/min, IPX6: 100 L/min)

Charging port, door seal, sensor

Water immersion test box

IPX7/IPX8

Sample immersion in water (IPX7: 1 meter/30 minutes, IPX8: deeper/longer)

Battery packs, ECU controllers, wiring harness connectors

High temperature and high pressure spray equipment

IPX9K

80℃ high temperature water + 8-10MPa high pressure spray (ISO 20653 standard)

Engine compartment parts, exhaust pipes

Multi-functional integrated test chamber

IPX1-IPX9K

Integrated spray, immersion, high temperature and high pressure modules, supporting full grade testing

R&D laboratory, multi-scenario verification needs



Third, automotive waterproof tester core design

1. High-pressure spray system (IPX5/IPX6)

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Nozzle specifications: 6.3mm (IPX5), 12.5mm (IPX6), stainless steel material corrosion resistance.

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Pressure control: 30kPa (IPX5) to 100kPa (IPX6), error ±5%.

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Testing distance: nozzle 2.5-3 meters from the sample, covering the full surface impact.

2. IPX9K high temperature and high pressure test module

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Water temperature control: 80±5°C, heating power ≥10kW.

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Spray pressure: 8-10MPa, fan-shaped nozzle angle 0°-90° adjustable.

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Testing time: 30 seconds in each direction, total 4 directions (ISO 20653 standard).

3. Water immersion test chamber (IPX7/IPX8)

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Water depth control: 1~3 meters adjustable, equipped with water level sensor.

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Sealing test: optional vacuum negative pressure function (simulate underwater pressure change).

4. Automation and data management

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PLC control: preset test program, one key to switch IPX4-IPX9K mode.

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Data logging: store water pressure, flow, temperature, time and other parameters, support report export (PDF/Excel).



IV. Test flow example

Case: car charging port IPX6 test

1. 

Sample fixation: install the charging port on the test bench and close the protective cover.

2. 

Parameter setting: Select IPX6 mode (100 L/min, 100kPa), nozzle distance 3 meters.

3. 

Test execution: keep spraying for 3 minutes, observe whether water seeps inside the interface.

4. 

Result Determination: Disassemble the charging port and check whether the sealing ring and circuit board are affected by moisture.

Case: Car lamp IPX9K test

1. 

High-temperature preheating: Increase the water temperature to 80℃ and adjust the pressure to 10MPa.

2. 

Multi-angle spraying: spray for 30 seconds in each direction of 0°, 30°, 60° and 90°.

3. 

Function test: power on immediately after the test to verify whether the lamp lighting function is normal.



V. Selection of key parameters

Parameter

Description

Compatible standards

ISO 20653 (for automobiles), IEC 60529, GB 4208.

Test range

Select single class or full class coverage (IPX4-IPX9K) as required.

Enclosure size

Suitable for the largest sample (e.g. headlight size: 500 x 300 x 200mm).

Pressure accuracy

High-pressure spray error ≤±5%, water immersion depth error ≤±1cm.

Extended function

Whether to support temperature shock, salt spray test and other composite environmental testing.