QC/T 1067.1-2017Connectors for automotive wire harnesses and electrical equipment - Part 1: Definitions, test methods and general performance requirements (English PDF)

3.1 Connector

Electrical connection assembly that consists of terminal, housing and accessories.

3.2 Housing

Non-metallic part that secures and protects terminal.

3.3 Terminal

Metal part for electrical connection, including plug terminal for plugging …

3.4 Cable attachment

Permanent connection between wire and terminal, such as crimp, puncture connection, soldering, etc.

3.5 Polarization feature

Device or structure on connector that is to prevent misconnection.

3.6 Connector cavity number

Visual, regular numbering of holes on connector.

4.1 Sample pre-treatment

Before all tests are conducted, it shall place the samples in an environment that the room temperature is (23±5)°C and the relevant humidity is 45%~75% for 24h.

4.1.1 Test requirements

All tests shall be conducted at a room temperature of (23±5)°C. All cavities of the connector shall be tested.

4.1.2 Default test errors

The default test errors are expressed as a percentage of the nominal value (Table 1).

4.1.3 Level classification

According to the expected use environment of the vehicle body, it shall choose temperature level (Table 2), sealing level (Table 3), vibration level (Table 4) and plug-unplug cycle level (Table 5) for test connector.

4.2 Appearance

4.2.1 Devices

Camera, video recorder, magnifier (if necessary).

4.2.2 Methods

The test sequence is as follows.

4.2.3 Requirements

The sample shall not have defects such as swelling, corrosion, discoloration, wear of contact plating, physical deformation, cracking that affect the function of the product.

4.3 Plug-unplug cycle

4.3.1 Devices

It shall be agreed by the supplier and the purchaser.

4.3.2 Methods

According to the provisions of Table 5, complete the plug-unplug cycle of connector or terminal. When only terminals are subject to the plug-unplug cycle, during the test process, it shall ensure that the plug-unplug cycle is conducted along with the centerline of the terminal.

4.3.3 Requirements

There are no damages that shall affect the follow-up tests.

4.4 Terminal-to-terminal insertion and extraction forces

4.4.1 Devices

Plug-unplug testing machine.

4.4.2 Methods

The test sequence is as follows.

4.4.3 Requirements

The appearance shall meet the requirements of 4.2. The metal substrate of the contact area shall not be exposed. The insertion and extraction forces shall meet the requirements of the product design documents or be agreed between the supplier and the purchaser.

4.5 Terminal bending resistance

4.5.1 Devices

Special fixture, force tester with peak reading characteristics.

4.5.2 Methods

This test is not applicable to the situation that cable attachment and terminal insertion direction form 90°.

4.7 Micro-current connection resistance

4.7.1 Devices

Milli-ohmmeter.

4.7.2 Methods

The test sequence is as follows.

4.15 Insertion force and extraction force of TPA (including PLR)

4.15.1 Devices

Force tester with peak reading characteristics.

4.15.3 Requirements

The requirements are as follows.

4.16 Insertion force and extraction force of CPA

4.16.1 Devices

Force tester with peak reading characteristics.

4.16.2 Methods

4.16.2.1 Insertion force and extraction force of CPA after connector is correctly fit

Prepare 10 pairs of connectors. Insert the connector to the right place. At the same time, assemble CPA to the pre-installed position (if applicable). Insert CPA at a uniform speed of 50mm/min to the locked position. Record the peak force value. Extract CPA from the locked position at a uniform speed of 50mm/min. Record the peak force value.

4.16.2.2 Insertion force of CPA when connector does not cooperate

Prepare 10 sets of connectors that do not cooperate. Assemble CPA to the pre-installed position (if applicable). Apply a force at a uniform speed of 50mm/min along with CPA's locking direction till CPA is assembled to the locked position. Record the peak force value.

4.16.2.3 Extraction force of CPA at pre-installed position (if applicable)

Prepare 10 sets of connectors. Assemble CPA to the pre-installed position. Apply a force at a uniform speed of 50mm/min along with CPA's extraction direction till CPA is separated from the connector. Record the peak force value.

4.16.3 Requirements

After the connector correctly cooperates, the maximum insertion force of CPA is 22N and the extraction force shall be 10N~30N. When the connector does not cooperate, the insertion force of CPA shall at least be 60N. The extraction force of CPA at the pre-installed position shall at least be 60N.

4.17 Vibration / mechanical shock

4.17.1 Devices

Temperature-humidity-vibration comprehensive test chamber.

4.17.2 Methods

The unsealed connector uses V1 vibration level to test. The sealed connector uses V2~V5 vibration levels to test. The test sequence is as follows.

4.18 Connector pair sounds in place

4.18.1 Devices

Decibel meter.

4.18.2 Methods

The test sequence is as follows.

4.18.3 Requirements

The sound level generated by the connector in place shall be higher than the ambient sound. 7dB before humidity, 5dB after humidity; or agreed by the supplier and the purchaser.

4.19 Drop

4.19.1 Devices

Meter ruler.

4.19.2 Methods

The test sequence is as follows.

4.19.3 Requirements

The test sample shall meet the requirements of appearance inspection. The applicable accessories shall not separate from their pre-installed positions.

4.20 Strength of terminal hole

4.20.1 Devices

Force tester with peak reading characteristics.

4.20.2 Methods

The test sequence is as follows.

4.20.3 Requirements

When applying the force specified in step 4), PLR cannot be inserted to the final position and the terminal retention force shall meet the numerical requirements after wet treatment in Table 13.

4.22 Mechanical strength of fixed structure (see Annex C for form and size)

4.22.1 Devices

Force tester with peak reading characteristics

4.22.2 Methods

The test sequence is as follows.