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This standard is developed in accordance with the rules given in GB/T 1.1-2009.
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This standard was proposed by and is under the jurisdiction of SAC/TC 28 National Technical Committee on Information Technology of Standardization Administration of China.
Information technology - Low-power wireless charger general specification for electronic information products
1 Scope
This standard specifies the requirements, test methods, quality evaluation procedures, marking, packaging, transportation and storage of low-power wireless chargers for electronic information products (hereinafter referred to as “products”).
This standard is applicable to the design, production and delivery acceptance of electromagnetic induction wireless chargers with output power not more than 30W for electronic information products.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 191 Packaging - Pictorial marking for handling of goods
GB/T 2421.1 Environmental testing for electric and electronic products - General and guidance
GB/T 2422 Environmental testing - Guide to drafting of test methods - Terms and definitions
GB/T 2423.1-2008 Environmental testing for electric and electronic products - Part 2: Test methods - Tests A: Cold
GB/T 2423.2-2008 Environmental testing for electric and electronic products - Part 2: Test methods - Tests B: Dry heat
GB/T 2423.3-2016 Environmental testing for electric and electronic products - Part 2: Testing method - Test Cab: Damp heat steady state
GB/T 2423.6-1995 Environmental testing for electric and electronic products - Part 2: Test methods - Test Eb and guidance: Bump
GB/T 2423.10-2008 Environmental testing for electric and electronic products - Part 2: Tests methods - Test Fc: Vibration (sinusoidal)
GB/T 4857.2-2005 Packaging - Basic tests for transport packages - Part 2: Temperature and humidity conditioning
GB/T 4857.5 Packaging - Transport packages - Vertical impact test method by dropping
GB 4943.1 Information technology equipment - Safety - Part 1: General requirements
GB/T 9254-2008 Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement
GB/T 15934 Electrical accessories - Cord sets and interconnection cord sets
GB/T 17618 Information technology equipment - Immunity characteristics - Limits and methods of measurement
GB/T 18313-2001 Acoustics - Measurement of airborne noise emitted by information technology and telecommunications equipment
GB/T 18455-2010 Package recycling marking
GB/T 26572 Requirements of concentration limits for certain restricted substances in electrical and electronic products
GB/T 28164 Secondary cells and batteries containing alkaline or other non-acid electrolytes - Safety requirements for portable sealed secondary cells, and for batteries made from them, for use in portable application
GB 31241 Lithium ion cells and batteries used in portable electronic equipments - Safety requirements
GB/T 35590-2017 Information technology - General specification for portable digital equipments power bank
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2422 and the following apply.
3.1
lower power
for wireless receiving equipment, the maximum output power not exceeding 30W
3.2
wireless charging
a non-contact power transmission method transmitting power from a power transmitter to a mobile device (power receiver) based on the principle of near-field electromagnetic induction between coils
3.3
power transmitter
a device capable of generating near-field inductive power and controlling its transmission to a power receiver
Note: A power transmitter is generally composed of input power supply and transmitting device, and in any of the following three product forms:
a) Self-contained power transmitter: A wireless power transmitting end, which is the equipment with function of single wireless power supply;
b) Mobile power-bank-type power transmitter: A product with cell and emitting function;
c) Integrated power transmitter: A transmitting end equipment with its wireless power transmitting end and other functional parts integrated into an inseparable whole.
3.4
transmitter input power
the total power of the power transmitter, which is provided by the DC input
3.5
power receiver
a device capable of obtaining near field inductive power generated by a power transmitter and controlling the power output to a load
Note: A power receiver is generally composed of receiving device and power receiving output, and in any of the following two product forms:
a) Separated power receiver: receiving end equipment with a separable interface between the wireless power receiving end and the power receiving part;
b) Integrated power receiver: receiving end equipment with the wireless power receiving end and the power receiving part integrated into an inseparable whole.
3.6
receiver output power
the level of the power output by the power receiver to the load side
3.7
transmission distance
the vertical distance between adjacent surfaces by aligning the coil centers of the power transmitter and the power receiver
3.8
transmitter standby power
the energy that the power transmitter loses when it cannot transmit energy under the rated input voltage
4 Requirements
4.1 General requirements
For the functions and performance requirements specified in this standard, the manufacturer shall ensure that the products work in normal conditions.
4.2 Appearance and structure
The appearance and structure of the products shall meet the following requirements:
a) The product surface shall be free from any obvious dent, scratch, crack, deformation or contamination; the coating on the surface shall be even and free from any bubble, crazing, shedding and abrasion; metal parts and components shall be free from any rust and other mechanical damage;
b) Parts and components shall be tightened without looseness, and switches, buttons and other control components shall be flexible and reliable.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
4.1 General requirements
4.2 Appearance and structure
4.3 Identification
4.4 Main performances
4.5 Safety
4.6 Power supply adaptability
4.7 Electromagnetic compatibility
4.8 Noise
4.9 Environmental adaptability
4.10 Limits on restricted substances
5 Test methods
5.1 Test conditions
5.2 Appearance and structure inspection
5.3 Identification inspection
5.4 Main performance test
5.5 Safety test
5.6 Power supply adaptability test
5.7 Electromagnetic compatibility test
5.8 Noise test
5.9 Environmental adaptability test
5.10 Limits on restricted substances
6 Quality evaluation procedure
6.1 General requirements
6.2 Inspection classification
6.3 Type approval inspection
6.4 Batch-by-batch inspection
6.5 Periodic inspection
7 Marking, packaging, transportation and storage
7.1 Marking
7.2 Packaging
7.3 Transportation
7.4 Storage
Annex A (Informative) Near RF electromagnetic field immunity test
