JB/T 10888-2008Motors for electric bicycles and similar purposes - Technical requirements (English PDF)

National Standard of the People's Republic of China

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

Contents

• Foreword i
• 1 Scope
• 2 Normative References
• 3 Terms and Definitions
• 4 Product Model, Type and Parameter
• 4.1 Motor Model
• 4.2 Duty System
• 4.3 Rated Voltage
• 4.4 Rated Power
• 5 Technical Requirements
• 5.1 Operation Conditions
• 5.2 Appearance
• 5.3 Operation
• 5.4 Assembly Quality
• 5.5 Lead-out Wire and Connector
• 5.6 Spark on Commutator
• 5.7 Rotation Direction
• 5.8 Rim Strength
• 5.9 Shaft Extension Diameter
• 5.10 Forks Distance
• 5.11 Insulation Resistance
• 5.12 Voltage Withstand
• 5.13 Interturn Insulation
• 5.14 Over-torque
• 5.15 Supply Voltage
• 5.16 Temperature Rise
• 5.17 Torque, Speed and Efficiency
• 5.18 Low Temperature
• 5.19 High Temperature
• 5.20 Damp Heat
• 5.21 Vibration
• 5.22 Noise
• 5.23 Protection Grade
• 5.24 Insulation Treatment
• 5.25 Grounding
• 6 Test Methods
• 6.1 Test Conditions
• 6.2 Appearance Inspection
• 6.3 Operation Inspection
• 6.4 Assembly Quality Inspection
• 6.5 Lead-out Wire and Connector Inspection
• 6.6 Inspection of Spark on Commutator
• 6.7 Rotation Direction Inspection
• 6.8 Hub Strength Test
• 6.9 Shaft Extension Diameter Measurement
• 6.10 Forks Distance Measurement
• 6.11 Insulation Resistance Measurement
• 6.12 Voltage Withstand Test
• 6.13 Interturn Insulation Test
• 6.14 Over-torque Test
• 6.15 Supply Voltage Change Test
• 6.16 Temperature Rise Test
• 6.17 Torque, Speed and Efficiency Determination
• 6.18 Low-temperature Test
• 6.19 High-temperature Test
• 6.20 Damp Heat Test
• 6.21 Vibration Test
• 6.22 Noise Measurement
• 6.23 Protection Grade Test
• 6.24 Insulation Treatment Inspection
• 7 Inspection Rules
• 7.1 Inspection Classification
• 7.2 Delivery Inspection
• 7.3 Type Inspection
• 8 Marking, Packaging, Transportation and Storage
• 8.1 Marking
• 8.2 Packaging
• 8.3 Transportation
• 8.4 Storage
• 9 Quality Warranty
• Annex A (Normative) Technical Requirements for Controller
• A.1 Product Model
• A.2 Appearance Requirements
• A.3 Strength of Controller Lead-out Wire
• A.4 Short-time Overload Capacity
• A.5 Speed Regulating Function
• A.6 Under-voltage Protection Function
• A.7 Over-current Protection Function
• A.8 Brake Power-off Function and Galloping Prevention Function
• A.9 Insulation Resistance
• A.10 High-temperature Test
• A.11 Low-temperature Test
• A.12 Steady-state Damp Heat Test
• A.13 Enclosure Protection Performance
• A.14 Temperature Rise Test
• A.15 Vibration-proof Performance
• A.16 Resistance to Over-voltage
• A.17 Locked-rotor Protection Function
• A.18 Phase Angle 60°/120° Compatibility
• Annex B (Normative) Regulations on Grade of Spark on Commutator
• Annex C (Informative) Derived Code of Motor
• Annex D (Informative) Installation Diagram for Motor Test
• Annex E (Informative) Pairing Table of Motor and Storage Battery
• Figure 1 Bullet-shape Connector with All or Half-sheath
• Figure 2 Schematic Diagram for Motor Lead-out Wire
• Figure 3 Schematic Diagram for Brush Motor Lead-out Wire
• Figure 4 Curve Chart for Motor Efficiency
• Figure A.1 Wiring Diagram for Controller
• Figure D.1 Installation Diagram for Motor Test
• Table 1 Limiting Value for Radial Circular Runout Tolerance of Inner-rotor Motor Shaft Extension
• Table 2 Limiting Value for Radial and End Face Circular Runout Tolerance of Motor
• Table 3 Nominal Sectional Area of Phase Line Lead-out Wire
• Table 4 Rated Torque of Motor
• Table 5 Motor Efficiency
• Table 6 Vibration Test Conditions
• Table 7 Motor Inspection Classification and Items
• Table B.1 Grading of Spark
• Table E.1 Pairing of Motor and Storage Battery