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).

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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

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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).

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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.

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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.