Automotive power battery booster Level 214 Level 215 performance test and quality requirements Material Science
A. Terminal:
Material: phosphor copper cusn4
Plating: bottom nickel 1 μ m; contact area gold plating 0.8 μ M
Operating temperature: - 40 ~ + 85 ℃
B. Plastic:
Material: PVC, UL94V-0, black
Operating temperature - 40 ~ + 85 ℃
C. Wire:
Ul21460 300V 80 ℃ electronic wire red, black
Reference standard: UL758, ul1581
3.3 electrical performance
A. Rated power: 0.6W
B. Rated voltage: 12 V DC
C. Contact impedance: 11 m Ω max
3.4 other technical parameters
A. Plugging life: more than 100 times of plugging resistance
B. Insertion force: 44.1n (4.5kgf) max
C. Pull out force: 10N (1.02kgf) min
D. Terminal and plastic retention: 2.2.3n/pin min
3.5 storage temperature: - 0 ~ 55 ℃
3.6 performance requirements and test description

The product must meet the electrical, mechanical and environmental requirements of Table 1. Unless otherwise specified, all tests are conducted at room temperature

4. Test requirements and operation procedure table 1
No. test content test method requirements
4.1 visual inspection (under 60W fluorescent lamp, the visual distance is 30cm) without mechanical damage, oxidation, deformation, etc
4.2 assembly and overall dimension measurement by projector or caliper shall conform to the engineering drawing
Electrical characteristics
4.3 contact impedance terminal: 11 m Ω max. at both ends of the terminal matched for test in the open circuit of 11 Ma, 20 mV max. matched with the plug-in
4.4 function 1. When the voltage is 3.12v, the buzzer will light green, no sound, and stay for 1-2 seconds
2. When the voltage is about 3.45v, the buzzer lights yellow with sound, and stays for 1-2 seconds
3. When the voltage is 3.46v, the buzzer will turn on the red light with a loud sound, and stay for 1-2 seconds
Mechanical properties
4.5 insert the plug-in force and the plug-in three times, and then insert 44.1n (4.5kgf) max at the speed of 25 ± 3mm per minute
4.6 pull out force and plug-in shall be pre inserted for three times, and then pull out 1.02 (10N) KGF min at the speed of 25 ± 3mm per minute
4.7 terminal and HSG retention force pull the terminal out of the plastic by 2.275 (22.3n) / pin min at a speed of 25 ± 3mm per minute
4.8 plug resistant: plug type A at the speed of 100 ± 50 times per hour: 100 times terminal contact impedance 11 m Ω max
4.9 test the lifting weight of the finished product, fix the connector, lift the weight of 3kgf / 1min at the distance of 200 ~ 300mm from the net end of the wire rod or the net end of the heavy object does not fall off, the appearance is good, and there is no electrical defect
4.10 vibration test standard: mil-std-134, method2005.1
1 microsecond (μ s), 100 Ma, sine scan, 10-2000 Hz
Displacement 0.07 inch, acceleration of 20g force, x, y, Z axis every 4H
There is no instant or short circuit fault. This project is tested by the client
Environmental characteristics
4.11 constant temperature and humidity A: after pairing, place in 25 ℃ to 95 ℃ for 96 hours, with relative humidity of 80% to 95%
B: Unpaired, at 25 ° C to 95 ° C for 96 hours, 80% to 95% RH
After 24 hours at room temperature, test a: terminal contact impedance 11 m Ω max
B: Withstand voltage and insulation impedance meet product requirements
A. In case B, there is no discharge or fire jump;
Reference note (a)
After 4.12 salt spray matching, spray test with 5% concentration of salt water for 96 hours, terminal contact impedance 11 m Max.
No exposed copper see note (a)
4.13 temperature life 250 hours in 105 ± 2 ℃ after pairing
Conduct the test after 1-2 hours at room temperature. The contact impedance of the terminal is 11 m Ω max
4.14 hot and cold impact: put it in the environment of - 45 ± 2 ℃ for 45 minutes, put it in the environment of 90 ± 2 ℃ for 45 minutes, rise and fall the temperature within 2 minutes to reach the specified value, and test 27 cycles. There is no damage to the plastic, terminal and wire rod, and no appearance defect
4.15 waterproof test: IP67, 1m water depth, 30min immersion, male and female pairing, no dust and no water immersion in the interior of housing,
Five point three Judgment: when the number of NG exceeds the specified value, it will be deemed as unqualified, and it will be returned to heavy industry, and then it will be submitted for batch inspection again according to the regulations.
6. Periodic test


six point one Test time:


A. Before mass production;


B. Key structure and material change;


C. When the continuous production period is half a year or the production quantity reaches 1000K;


D. When production is resumed after three months of suspension;


E. When requested by the customer.


six point two The test samples are randomly selected from the products that pass the inspection one by one and are used as the samples for periodic inspection. The total number of samples is 30 PCs, divided into


6 groups of tests. The test groups and contents shall be carried out according to table 3 and table 1.


six point three Judgment: if the periodic test is unqualified, the production shall be stopped immediately, analyzed, and improvement measures shall be taken. It can be recovered only after the test is qualified
Six point four Production. If it is an accidental factor, it is allowed to do it again. Qualified periodic test can be used as the basis for acceptance and delivery
8. Packaging: according to the packaging requirements of product engineering drawings


9. Storage: packed products shall be stored in an environment free from pollution, with a temperature of - 10 ℃ ~ + 40 ℃ and a relative humidity of no more than 80% Medium