QC/T 841-2010Conductive charge couplers for electric vehicles (English PDF)

3.1 Charge coupler

It refers to the charging parts used to connect the mobile cables and electric vehicles, which is composed of the connector and inlet.

3.2 Conductive charge

It refers to the method of charging the electric vehicle through electric conduction.

3.3 Terminal

It refers to the conductive part which can form the electrical path after the connector is plugging into the inlet.

4.1 Nominal value of the charge coupler

The nominal values of the electrical parameters shall be in accordance with GB/T 156.

4.1.1 Rated voltage

0 to 36V (for signal and control purposes only); 220V (AC); 400V (DC); 750V (DC)

6.1 Classification of charge coupler

This standard specifies two kinds of charge couplers.

6.2 Functions of charge coupler

6.2.1 AC Charge coupler classification

6.2.2 DC charge coupler function

6.2.2.1 Electrical parameter value and function definition

The DC charge coupler contains 9 pairs of terminals, the electrical parameters and function definitions of which are as shown in Table 3.

8.1 Structural requirements

8.1.1 The surfaces easily contacted by the connector and the inlet shall be free from burrs, flashings or similar sharp edges.

8.1.4 The terminals of the connector and the inlet shall be marked with the symbol as specified in 4.2.

8.1.5 After the inlet is installed on the electric vehicle, its marking of the rated voltage and the rated current shall be easily identifiable.

8.1.6 Color marking of charging mode.

In the distinct area of the connector (e.g. the control button surface of the locking device), it shall use different colors to represent different charging modes.

8.1.7 Locking device

The charge coupler shall have a lockout function to prevent accidental disconnection during charging process. In the locked state, when applying twice of the pull-out force of the force as specified in 8.1.10, the connection shall not be disengaged AND the lockout device shall not be damaged.

8.1.8 Charging cable specifications and their connections

8.1.10 Insertion and pull-out force

8.1.11 Breaking capacity

8.2.5 Corrosion resistance

When the metallic parts of the connector and the inlet are subjected to the corrosion resistance performance test in accordance with the test methods as specified in 9.15, the metallic surface shall be free from apparent corrosion.

8.2.6 Insulation resistance

When the terminals of the connector and the inlet as well as the terminal and other metallic parts are subjected to the insulation resistance test in accordance with the test methods as specified in 9.16, the insulation resistance shall not exceed 10 Mohm.

8.2.7 Insulation voltage withstanding performance

When the terminals of the connector and the inlet as well as the terminal and other metallic parts are subjected to the insulation voltage withstanding performance test in accordance with the test methods as specified in 9.17, the insulation shall not be broken down.

9.1 General provisions

9.1.1 Environmental conditions

Unless otherwise stated, the test shall be conducted at an ambient temperature of 18 °C ~ 28 °C, a relative humidity of 45% ~ 75%, AND an atmospheric pressure of 86 kPa ~ 106 kPa.

9.3 Locking device test

ENGAGE the connector and the inlet, and MAKE the locking device be at the lockout state; APPLY the pull-out force as specified in 8.1.7; CHECK the function of the locking device.

9.4 Charging cable test

CHECK the appearance of the charging cable conductors.

9.5 Terminal test

9.6 Insertion and pull-out force test

USE instrument (such as the spring scale and weight, etc.) to test the insertion and pull-out force between the power connector and the power inlet, and vehicle connector and vehicle inlet.

9.18 Service life test

After the connector and the inlet finished insertion & pull-out test and temperature rise test, under the conditions of maintaining the rated voltage supply from the power equipment to the connector, […]