1 Scope
This standard specifies the technical requirements, test methods and inspection rules of single-phase series motors - fans (hereinafter referred to as motors) for household and similar vacuum cleaners.
This standard is applicable to the motors for vacuum cleaners and water-suction cleaning appliances within the scope of GB 4706.7.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this part. However parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies.
GB/T 191 Packaging - Pictorial marking for handling of goods (GB/T 191-2008, ISO 780:1997, MOD)
GB/T 2423.3-2006 Environmental testing for electric and electronic products - Part 2: Testing method - Test Cab: Damp heat steady state (IEC 60068-2-78:2001, IDT)
GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (apply to inspection of process stability)
GB 4706.7 Household and similar electrical appliances - Safety - Particular requirements for vacuum cleaners and water-suction cleaning appliances (GB 4706.7-2004, IEC 60335-2-2:2002, IDT)
GB/T 4857.5 Packaging - Transport packages - Vertical impact test method by dropping
GB/T 8128-2008 Test procedures for single-phase series motors
GB/T 10069.1 Measurement of airborne noise emitted by rotating electrical machines and the noise limits - Part 1: Method for the measurement of airborne noise emitted by rotating electrical machines (GB/T 10069.1-2006, ISO 1680: 1999, MOD)
GB 12350-2009 Safety requirements of small-power motors
GB/T 13384 General specifications for packing of mechanical and electrical product
JB/T 10490 Mechanical vibration of small power motors - Measurement, evaluation and limits of vibration
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
standard test status
operating status of motor when its suction port is open, and there are no obstacles and drastic airflow change within 20cm around the motor
3.2
standard ambient testing conditions
conditions of ambient temperature of 20±5℃, relative humidity of 60%~70% and air pressure of 86~106kPa
3.3
rated operation
operation of motor under the standard test status and standard ambient testing conditions at the rated voltage and frequency
3.4
no-load operation
operation of motor with the suction port fully closed under the standard ambient testing conditions
3.5
rated input power
nominal value of the input power of the motor under rated operating conditions
3.6
suction power
energy of the airflow sucked by motor in unit time
3.7
efficiency
ratio of suction power to input power of the motor at rated voltage and frequency, expressed as a percentage
3.8
wet and dry dual-use motor
motor with fan airflow separated from armature cooling airflow
3.9
normal load
load when the measured input power is Pm after suction port adjustment when the motor has operated continuously for 20s at the rated voltage
Pm is calculated using the following equation:
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Product classification and designation
5 Technical requirements
6 Test methods
7 Inspection rules
8 Marking, packaging, transportation and storage
Annex A (Normative) Principle of testing method for air volume and vacuum degree of motor
