QC/T 1155-2021 PDF in English
QC/T 1155-2021 (QC/T1155-2021, QCT 1155-2021, QCT1155-2021)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Name of Chinese Standard | Status |
| QC/T 1155-2021 | English | 395 |
Add to Cart
|
0-9 seconds. Auto-delivery.
|
Automobile USB power adapter
| Valid |
Standards related to: QC/T 1155-2021
PDF Preview
QC/T 1155-2021: PDF in English (QCT 1155-2021) QC/T 1155-2021
AUTOMOBILE INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.10
CCS T 36
Automobile USB power adapter
ISSUED ON: AUGUST 21, 2021
IMPLEMENTED ON: FEBRUARY 01, 2022
Issued by: Ministry of Industry and Information Technology of PRC
Automobile USB power adapter
1 Scope
This document specifies the technical requirements and test methods for automobile
USB power adapters, including inspection rules and markings, packaging,
transportation, storage for automobile USB power adapters.
This document applies to automobile USB power adapters (hereinafter referred to as
power adapters), that use USB Type A sockets, on categories M, N, O, G motor vehicles.
2 Normative references
The contents of the following documents constitute essential provisions of this
document through normative references in the text. Among them, for the dated
references, only the version corresponding to the date is applicable to this document;
for the undated references, the latest version (including all amendments) is applicable
to this document.
GB/T 191 Packaging - Pictorial marking for handling of goods (ISO 780:1997,
MOD)
GB/T 2408-2008 Plastics - Determination of burning characteristics - Horizontal
and vertical test (IEC 60695-11-10:1999, IDT)
GB/T 2423.17-2008 Environmental testing for electric and electronic products - Part
2: Test method - Test Ka: Salt mist (IEC 60068-2-11:1981, IDT)
GB/T 13306 Plates
GB/T 18655-2018 Vehicles, boats and internal combustion engines - Radio
disturbance characteristics - Limits and methods of measurement for the protection
of on-board receivers (CISPR25:2016, IDT)
GB/T 19951 Road vehicles - Disturbances test methods for electrical/electronic
component from electrostatic discharge (ISO 10605:2008, MOD)
GB/T 21437.2-2008 Road vehicles - Electrical disturbances from conduction and
coupling - Part 2: Electrical transient conduction along power lines (ISO 7637-
2:2004, IDT)
GB/T 28046.2-2019 Road vehicles - Environmental conditions and testing for
electrical and electronic equipment - Part 2: Electrical loads (ISO 16750-2:2006,
MOD)
GB/T 28046.3-2011 Road vehicles - Environmental conditions and testing for
electrical and electronic equipment - Part 3: Mechanical loads (ISO 16750-3.2007,
MOD)
GB/T 28046.4-2011 Road vehicles - Environmental conditions and testing for
electrical and electronic equipment - Part 4: Climatic loads (ISO 16750-4:2006,
MOD)
GB/T 28046.5-2013 Road vehicles - Environmental conditions and testing for
electrical and electronic equipment - Part 5: Chemical loads (ISO 16750-5:2010,
MOD)
GB/T 30038 Road vehicles - Degrees of protection (IP-Code) (ISO 20653:2006,
MOD)
GB/T 33014.2-2016 Road vehicles - Component test methods for
electrical/electronic disturbances from narrowband radiated electromagnetic energy
- Part 2: Absorber-lined shielded enclosure (ISO 11452-2:2004 MOD)
GB/T 33014.4-2016 Road vehicles - Component test methods for
electrical/electronic disturbances from narrowband radiated electromagnetic energy
- Part 4: Bulk current injection (BCI)/(ISO 11452-4:2005 MOD)
QC/T 238 Storage and preservation for automotive parts
IEC 62680-1-2:2017 Universal serial bus interfaces for data and power - Part 1-2:
Common components - USB Power Delivery specification
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Universal serial bus, USB
Abbreviation for Universal Serial Bus, which is a serial bus standard for connecting
computer systems and external devices.
3.2
Automobile USB power adapter
A device, that converts the DC power input from the automobile into the DC power
output, based on the USB interface, through a transformer controller, referred to as
The force, which is required for the mating plug to be fully inserted into the USB socket
of the power adapter, at a rate not greater than 12.5 mm/min, shall not be less than 10
N and not more than 35 N.
4.2.2 Pull-out force
The force, which is required to completely unplug the mating plug from the USB socket
of the power adapter, at a rate of not more than 12.5 mm/min, shall not be less than 10
N and not more than 35 N.
4.2.3 Plug-in/pull-out life
At the maximum rate of 200 cycles (1 cycle is composed of 1 plug-in and 1 pull-out)/h,
the mating plug is inserted/removed from the USB socket of the power adapter, for
10000 cycles. The force, which is required to completely remove the mating plug from
the USB socket of the power adapter, shall not be less than 10 N. After the test, the
power adapter shall be powered on for testing. The performance shall meet the
requirements of 4.3.1 and 4.3.2.
4.2.4 Vibration performance
The power adapter shall be subjected to the vibration performance test. It shall meet the
requirements of 4.3.1 and 4.3.2, after the test.
4.2.5 Free drop
The power adapter shall be subjected to a free drop test. It shall meet the requirements
of 4.3.1 and 4.3.2, after the test. The product shall not be broken, fractured or severely
deformed.
4.3 Electrical properties
4.3.1 Rated output voltage
The rated output voltage of the power adapter shall be 5 V, with a tolerance of ±5%. If
there are other output voltages, the rated output voltage shall be marked, with a
tolerance of ±5%.
4.3.2 Rated output current
Under general test conditions, the rated output current of the power adapter is 2.1A,
with a tolerance of -3%.
4.3.3 Conversion efficiency
Under general test conditions, for 12V system, the conversion efficiency of the power
adapter shall not be less than 89%; for 24V system, the conversion efficiency of the
power adapter shall not be less than 87%.
4.3.4 Load short-circuit current
Under general test conditions, after the load at the output end of the power adapter is
short-circuited, the short-circuit average current shall be less than 0.2 times the rated
output current.
4.3.5 No-load current
The no-load current of the power adapter shall be specified in the product technical
conditions; the size of the no-load current shall be negotiated by both the supplier and
the buyer.
4.3.6 Contact resistance
The contact resistance of the USB socket of the power adapter shall be not greater than
30 mΩ.
4.3.7 Overvoltage
The power adapter shall be subjected to the overvoltage test. The performance, during
the test, may not meet the requirements of 4.3.1 and 4.3.2. However, after the input
voltage returns to normal, the performance of the power adapter shall meet the
requirements of 4.3.1 and 4.3.2.
4.3.8 Reverse voltage
The power adapter shall be subjected to the reverse voltage test; the performance of the
power adapter shall meet the requirements of 4.3.1 and 4.3.2, after the test.
4.3.9 Ramp-down and ramp-up of supply voltage
The power adapter shall be subjected to the power supply voltage ramp-down and ramp-
up tests. Within the power supply voltage range in Table 1, the performance of the
power adapter shall meet the requirements of 4.3.1 and 4.3.2, during and after the test.
Outside the power supply voltage range, the performance of power adapter may not
meet the requirements of 4.3.1 and 4.3.2, during the test.
4.3.10 Transient drop in supply voltage
The power adapter shall be subjected to the transient drop test of the power supply
voltage; the performance after the test shall meet the requirements of 4.3.1 and 4.3.2.
4.3.11 Reset characteristics
The power adapter shall be subjected to the reset characteristic test; the performance
shall meet the requirements of 4.3.1 and 4.3.2, after the test.
4.3.12 Insulation resistance
4.4 Electromagnetic compatibility
4.4.1 General test requirements
The power adapter shall be tested, according to the requirements of the product
drawings and technical documents. It shall not be tested, with any auxiliary equipment
or measures other than those specified in the product drawings and technical documents.
The power adapter is divided into a single unit (see Figure A.1), a module (see Figure
A.2), an extension cable (see Figure A.3), an adapter device (see Figure A.4). The power
adapter is as follows, when it is under the working states at rated load:
a) Single unit: The unit is in the rated load working state;
b) Module: When the load, which is connected to the USB interface in the module
is in the rated load working state, other electronic and electrical products, which
are combined with it, shall also be in the rated load working state;
c) Extension cable: When the load, which is connected to the USB interface in the
extension cable, is in the rated load working state, the transformer controller in
the extension cable shall also be in the rated load working state;
d) Adapter device: When the load, which is connected to the USB interface in the
adapter device, is in the rated load working state, the transformer controller in the
adapter device shall also be in the rated load working state.
When it is mentioned that the power adapter is under the rated load working state below,
the above definitions apply.
4.4.2 Electromagnetic radiation immunity
4.4.2.1 Electromagnetic radiation immunity - Bulk current injection (BCI)
The power adapter is in the rated load working state, according to 8 in GB/T 33014.4-
2016. The performance of the power adapter, during and after the test, shall meet the
requirements of 4.3.1 and 4.3.2.
4.4.2.2 Electromagnetic radiation immunity - Anechoic chamber method
The power adapter is in the rated load working state, according to 8 in GB/T 33014.2-
2016. The performance of the power adapter, during and after the test, shall meet the
requirements of 4.3.1 and 4.3.2.
4.4.3 Electrical transient conducted immunity along power lines
The power adapter is in the rated load working state, according to 5 in GB/T 21437.2-
2008. It shall meet the requirements of Table 5 or Table 6, during the test; meet
requirements of 4.3.1 and 4.3.2, after the test.
4.4.4 Electromagnetic disturbance characteristics
4.4.4.1 When the power adapter is under rated load working state, it shall be carried out
in accordance with 6.3 (voltage method) in GB/T 18655-2018; the limit value shall
meet level 4.
4.4.4.2 When the power adapter is under rated load working state, it shall be carried out
according to 6.5 (ALSE method) in GB/T 18655-2018; the limit value shall meet level
4.
4.4.5 Electrostatic discharge
The power adapter is in the rated load working state and in the power-off state,
according to the requirements in GB/T 19951. It shall meet the requirements of 4.3.1
and 4.3.2, during and after the test.
4.5 Climatic performance
4.5.1 High temperature storage performance
The power adapter shall be subjected to the high temperature storage test. It shall meet
the requirements of 4.1.4, 4.3.1, 4.3.2, after the test.
4.5.2 High temperature working performance
The power adapter shall be subjected to the high temperature working test. It shall meet
the requirements of 4.1.4, 4.3.1, 4.3.2, during and after the test.
4.5.3 Low temperature storage performance
The power adapter shall be subjected to the low temperature storage test. It shall meet
the requirements of 4.1.4, 4.3.1, 4.3.2, after the test.
4.5.4 Low temperature working performance
The power adapter shall be subjected to the low temperature working test. It shall meet
the requirements of 4.1.4, 4.3.1, 4.3.2, during and after the test.
4.5.5 Resistance to temperature cycling
The power adapter shall withstand the high and low temperature cycle performance test.
It shall meet the requirements of 4.1.4, 4.3.1, 4.3.2, during and after the test.
4.5.6 Resistance to cyclic damp heat
The power adapter shall be subjected to the cyclic damp heat resistance test. It shall
meet the requirements of 4.1.4, 4.3.1, 4.3.2, during and after the test.
5 Test methods
5.1 General requirements
5.1.1 Test environmental conditions for the test
Unless otherwise specified, all tests are performed under the following conditions:
- Ambient temperature: 23 °C ± 5 °C;
- Relative humidity: 25% ~ 75%;
- Atmospheric pressure: 86 kPa ~ 106 kPa.
5.1.2 Test voltage
When the test voltage of the power adapter is not specified, if the nominal voltage range
UN is 12 V, the test voltage UA is 14 V ± 0.2 V; if the nominal voltage UN is 24 V, the
test voltage UA is 28 V ± 0.2 V.
5.1.3 Test instruments and equipment
Test instruments and equipment are required to have sufficient resolution, accuracy,
stability, to ensure that the error limit is within the allowable range of the item under
test:
a) The accuracy of the test voltmeter, ammeter, multimeter shall not be lower than
level 0.5;
b) The accuracy of the temperature measuring instrument shall not be lower than
0.5 °C;
c) The ripple coefficient of the DC stabilized power supply for the test shall not be
greater than 0.1%;
d) When the power adapter is tested, the simulated load is a DC electronic load, the
power is more than 200 W, the number of channels is more than two;
e) For all tests with load in this document, it shall add a wire harness, which has a
voltage drop of not more than 50 mV under the condition of 1 A current, to the
output end of the power adapter;
f) Use a digital oscilloscope (minimum single-stroke sweep sampling frequency of
2 GHz/s, bandwidth of 400 MHz or more, input sensitivity of at least 5 mV/scale)
for the test; record the test results.
5.1.4 Appearance
The appearance and sign of the power adapter shall be checked visually.
5.1.5 Dimensions
The external dimension of the power adapter is detected, by a general or special
measuring tool.
5.2 Mechanical property test
5.2.1 Insertion force
Fix the power adapter on the fixture. Connect the mating plug rigidly to the
dynamometer. Insert the mating plug into the USB socket of the power adapter, at a rate
of not more than 12.5 mm/min, until it is fully inserted. Use a dynamometer, to make
10 measurements. The arithmetic mean of the maximum value in each test is the test
value of insertion force.
5.2.2 Pull-out force
After the mating plug is completely connected with the USB socket of the power adapter,
pull out the mating plug from the USB socket of the power adapter, at a rate of not more
than 12.5 mm/min. During this process, apply tension to the plug, until the plug is
completely separated from the USB socket of the power adapter. Use a dynamometer,
to make 10 measurements. The arithmetic mean of the maximum values, in each test,
is the test value of pull-out force.
5.2.3 Plug-in/pull-out life
Respectively fix the mating plug and the power adapter on the special equipment. Plug
in/pull out the matting plug in/out of the USB socket of the power socket, for 10000
cycles, at the maximum rate of 200 cycles (one cycle is composed of 1 plug-in and 1
pull-out)/h.
5.2.4 Vibration performance test
5.2.4.1 Passenger car elastomer (body)
It is carried out, in accordance with 4.1.2.4 of GB/T 28046.3-2011.
5.2.4.2 Commercial vehicle elastomers
It is carried out, in accordance with 4.1.2.7 of GB/T 28046.3-2011.
5.2.5 Free drop test
When the power adapter is in a non-working state during the test, it shall be carried out,
according to 4.3 of GB/T 28046.3-2011.
Note: The minimum discharge interval is 5 s.
a See Appendix C for details.
5.5 Climate performance test
5.5.1 High-temperature storage performance test
It is carried out, in accordance with 5.1.2.1 of GB/T 28046.4-2011.
5.5.2 High-temperature working performance test
It is carried out, in accordance with 5.1.2.2 of GB/T 28046.4-2011.
5.5.3 Low-temperature storage performance test
It is carried out, according to 5.1.1.1 of GB/T 28046.4-2011.
5.5.4 Low-temperature working performance test
It is carried out, according to 5.1.1.2 of GB/T 28046.4-2011.
5.5.5 Test of resistance to temperature cycle
It is carried out, in accordance with 5.3 of GB/T 28046.4-2011.
5.5.6 Test of resistance to cyclic damp heat
It is carried out, according to 5.6 of GB/T 28046.4-2011.
5.5.7 Test of resistance to steady-state damp heat
It is carried out, according to 5.7 of GB/T 28046.4-2011.
5.5.8 Salt spray resistance test
It is carried out, according to 6 of GB/T 2423.17-2008.
5.6 Durability performance test
Under the general test conditions, the power adapter works continuously for 800 h,
under rated load.
5.7 Flame retardance test
It is carried out, according to 8.2 and 9.2 of GB/T 2408-2008.
5.8 Degree of protection
It is carried out, according to the relevant requirements in GB/T 30038.
commodity bar codes, etc. Items can also be added, according to the requirements of
users.
7.1.1.2 The nameplate of the product shall comply with the provisions of GB/T 13306
(except for special circumstances).
7.1.2 Packaging marks
The basic contents of the packaging marks include:
a) Product marking content related to delivery: product name and trademark, product
model, specifications, applicable models;
b) The name, detailed address, postal code, telephone number of the manufacturer;
c) The production date (or serial number) or production batch number;
d) The serial number of the implemented product standard (national standard,
industry standard, local standard or registered enterprise standard);
e) Graphical signs for packaging, storage, transportation (in compliance with the
relevant provisions of GB/T 191);
f) The text of the transportation operation: The volume (length x width x height)
dimensions of the packing box; the quantity of the products in each box; the total
mass of the products per box;
g) The quality grade mark;
h) Other marks, such as safety certification qualification marks, electromagnetic
compatibility certification qualification marks, quality certification qualification
marks, etc.
The above items g) and h) may not be marked, according to the specific conditions of
the product, whilst the other items shall be marked.
7.2 Packaging
7.2.1 Considerations for product packaging:
a) Requirements for moisture-proof, vibration-proof, dust-proof;
b) Relevant requirements for adapting to transportation and loading and unloading;
c) The mating parts of ferrous metal parts without protective layer of the product
before packaging shall be provided with temporary anti-rust protection measures.
7.2.2 Packaging boxes
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
|