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QC/T 1101-2019Electric heaters for electric vehicles (English PDF)

电动汽车用电加热器

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

August 2, 2019

Implementation date

January 1, 2020

Scope

QC/T 1101-2019 is the English-translated version of 电动汽车用电加热器.

QC/T 1101-2019 covers the electric heater used on electric vehicles, specifying its terms and definitions, requirements, test methods, inspection rules, and marking, packaging, transportation and storage.

It applies to electric heaters for electric vehicles, but not to panel or electrothermal film electric heaters.

The requirements treat the heater as an electrical and a mechanical part: after vibration and after temperature alternation the unit must show no structural damage, after a 1000 mm drop in the factory-packed state no obvious damage, and after humidity resistance and high and low temperature storage its input power change must stay within plus or minus 10 percent, and the electrical safety performance of clause 4.4 must still hold.

Salt spray resistance calls for a neutral salt spray test of not less than 96 h, with no corrosion or leakage afterwards.

For liquid heaters there is a test at 0.2 MPa air pressure held 120 s, a burst pressure test at 0.5 MPa held 30 s, a pressure impulse test of 20 000 alternations between 0.02 MPa and 0.25 MPa at 1 Hz with the liquid at 100 degrees C plus or minus 5 degrees C, and a vacuum test at -90 kPa held 60 s and repeated 5 times.

Durability runs at (1.15 plus or minus 2 percent) of rated voltage, either 1000 h continuous or 10 000 on-off cycles of 1 min on and 1 min off. Protection level, flame retardance of non-metallic parts and prohibited substances are tested to GB/T 4208, GB/T 2408 and GB/T 30512.

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Document preview — QC/T 1101-2019

National Standard of the People's Republic of China

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

Foreword3
1 Scope4
2 Normative References4
3 Terms and Definitions5
4 Requirements6
5 Test Methods10
6 Inspection Rules14
7 Marking, Packaging, Transportation and Storage16

1 Scope

1.1 This Standard specifies the terms and definitions, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of electric heater for electric vehicle.

1.2 This Standard is applicable to electric heater for electric vehicle (hereinafter referred to as "electric heaters"), but not applicable to panel electric heater and electrothermal film electric heaters.

2 Normative References

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this document.

GB/T 2408 Plastics - Determination of Burning Characteristics - Horizontal and Vertical Test

GB/T 2423.17 Environmental Testing for Electric and Electronic Products - Part 2: Test Methods - Test Ka: Salt Mist

GB/T 2423.22 Environmental Testing - Part 2: Test Methods - Test N: Change of Temperature

GB/T 4208-2017 Degree of Protection Provided by Enclosures (IP Code)

GB/T 4857.5 Packaging - Transport Packages - Vertical Impact Test Method by Dropping

GB/T 18384.3 Electrically Propelled Road Vehicle - Safety Specification - Part 3: Protection of Persons against Electric Shock

GB/T 18655 Vehicles, Boats and Internal Combustion Engines - Radio Disturbance Characteristics - Limits and Methods of Measurement for the Protection of on-Board Receivers

GB/T 30512 Requirements for Prohibited Substances on Automobiles

4 Requirements

4.5.3 Vibration

After the electric heater is tested according to 5.10, there shall be no structural damage, the input power change shall not exceed ±10%, and the electrical safety performance shall meet the requirements of 4.4.

4.5.4 Drop performance

After the electric heater in the factory-packed state drops from a height of 1000mm according to the test method in 5.11, there shall be no obviously damage; its input power change shall not exceed ±10%, and the electrical safety performance shall meet the requirements of 4.4.

4.6 Weather resistance

4.6.1 Temperature Alternation

After the electric heater is tested according to 5.12, there shall be no structural damage, the input power change shall not exceed ±10%, and the electrical safety performance should meet the requirements of 4.4.

4.6.2 Humidity resistance

After the electric heater is tested in accordance with 5.13, the input power change shall not exceed ±10%, and the electrical safety performance shall meet the requirements of 4.4.

4.6.3 High temperature storage

After the electric heater is tested in accordance with 5.14, the input power change shall not exceed ±10%, and the electrical safety performance shall meet the requirements of 4.4.

4.6.4 Low temperature storage

After the electric heater is tested in accordance with 5.15, the input power change shall not exceed ±10%, and the electrical safety performance shall meet the requirements of 4.4.

4.7 Salt spray resistance

The electric heater shall meet the requirements that the neutral salt spray test lasts for no less than 96h. After the test according to 5.16, there shall be no corrosion and leakage, and its electrical performance shall meet the requirements of 4.4.

5 Test Methods

5.19 Burst pressure test

The liquid electric heater is filled with 0.5MPa air pressure and pressure is maintained for 30s.

5.20 Durability test

Load voltage of electric heater: (1.15±2%) U (U is the rated voltage).

5.20.1 Under normal working conditions, place the electric heater on the test device and work continuously for 1000h.

5.20.2 Under normal working conditions, place the electric heater on the test device. After the electric heater is energized for the 1min, then switched off for 1 min; and it shall be switched on and off for 10 000 times.

5.21 Protection level test

The protection test of Level-B voltage components of electric heaters shall be carried out in accordance with the provisions of GB/T 4208.

5.22 Flame-retardant test

The flame-retardant test of non-metallic parts of electric heaters shall be carried out in accordance with the provisions of GB/T 2408.

5.23 Pressure impulse resistance test

When the liquid electric heater is at a liquid temperature of 100°C ± 5°C, the number of pressure alternations shall be 20 000 times, the alternating pressure is 0.02MPa~0.25MPa, and the alternating frequency is 1Hz.

5.24 Vacuum resistance test

Apply a pressure of -90kPa inside the liquid electric heater, release the vacuum after maintaining the pressure for 60s, and repeat for 5 times.

5.25 Prohibited substance test

The detection of prohibited substances shall be carried out in accordance with the provisions of GB/T 30512.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 18 pages — is available in the English PDF.

Referenced standards

Normative references

Similar standards

GB/T 4706.36-2024|GB/T 26185-2023|GB/T 4214.15-2021|GB/T 34663-2017|QC/T 1241-2025|QC/T 1266-2025

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