I. Product Requirements
The primary goal is to enhance students' skills in battery assembly and debugging. The platform should allow for the assembly, measuring and debugging of power batteries, single-cell batteries, battery modules, high-voltage accessories, and AC charging interfaces.
II. Product Configuration Requirements
The product consists of the following components: a metal assembly table for power batteries, power batteries, an insulation tool set, testing instruments, a teaching display, a manual fault box, and a Battery Management System upper computer system (software).
(1) Metal Assembly Table for Power Batteries
Dimensions: 1630mm * 780mm * 1730mm (Length * Width * Height)
(2) Power Battery
Dimensions: 884mm * 530mm * 230mm
Nominal Voltage: 60V
Battery Type: Lithium Iron Phosphate
① Battery Management System
Operating Voltage Range: DC 9～36V
Operating Temperature Range: -40℃～85℃
Storage Temperature Range: -40℃～125℃
Operating Humidity Range: 0～95%
Single-Cell Voltage Detection Range: 0～5V
Single-Cell Voltage Sampling Accuracy: ≤5mV
Single-Cell Voltage Sampling Frequency: ≤100ms
Total Voltage Detection Accuracy: <1%
Temperature Measurement Range: -40～125℃
Temperature Detection Accuracy: ±1℃
Current Detection Range: ≤75A
② On-Board Charger
Working Altitude: ≤3000m at full load output
Storage Environment Temperature: -40℃～80℃
Operating Environment Temperature: -20℃～55℃ for normal operation, 55℃～75℃ with reduced output
Relative Humidity: 0～95%
Installation Environment: No severe vibration or impact
Dust Environment: No conductive or explosive dust, no gases or vapors that corrode metal or damage insulation
Specifications: 75V/10A
Input Voltage: ≥220V AC
Operating Frequency: 50/60Hz
CC, CP Functions: Available
Output Voltage: ≥75V DC
Output Current: ≤10A
Output Power: ≥800W
Voltage Regulation Accuracy: ≤1%
Current Regulation Accuracy: ≤1%
Voltage Ripple (P-P): ≤1%
Efficiency: ≥0.93
Input Over-voltage Protection: Shutdown at >260V AC
Input Under-voltage Protection: No startup at <176V AC
Over-temperature Protection: Shutdown at >80℃, automatic recovery at <60℃
Output Over-voltage Protection: ≥80V DC
Output Over-current Protection: ≥12A
Output Under-voltage Protection: No startup if battery pack voltage is <10V
Short-circuit Protection: Constant current during short-circuit, automatic recovery after fault is cleared
Reverse Connection Protection: No startup with reverse connection, automatic recovery after fault is cleared
Insulation Resistance (Input to Output): DC1000V ≥100MΩ
Insulation Resistance (Input to Chassis): DC1000V ≥100MΩ
Insulation Resistance (Output to Chassis): DC1000V ≥100MΩ
Communication: CAN 2.0
Auxiliary Power: ≤12V/3A
Cooling Method: Air cooling
Protection Level: IP65
Connector: Aviation plug
Operating Noise: ≤60dB
③ Single-Cell Battery
Voltage: 3.2V
Capacity: 30AH
Type: Lithium Iron Phosphate
④ Temperature Sensor
Resistance Value at Room Temperature: 1000Ω
Operating Temperature Range: -40℃～85℃
Storage Temperature Range: -40℃～125℃
Operating Humidity Range: 0～95%
Temperature Detection Accuracy: ±1℃
Terminal Type: Bolt terminal
⑤ High-Voltage Relay
Contact Rated Current: 0～100A
Coil Voltage: 12V
Maximum Rated Operating Voltage: 0～220V
Terminal Type: Bolt terminal
⑥ Pre-Charge Resistor
Resistance Value: 100Ω
Power Rating: 100W
Resistor Type: Wire-wound resistor
Packaging Material: Industrial aluminum
Lead Wire: Teflon high-temperature wire
(3) Teaching Display
Display Size: ≤55 inches
(4) Insulation Tool Set
Material: Alloy tool steel
Voltage Resistance: 1KV
Measurement System: Metric
(5) Testing Instruments
① Battery Internal Resistance Tester
Test Method: AC four-terminal test
Resistance Resolution: 0.1mΩ
Voltage Measurement Accuracy: 100mV
Voltage Measurement Range: 0-100V
Internal Resistance Measurement Range: 1mΩ-199.9mΩ
② Insulation Resistance Tester
Insulation Resistance Measurement: 2000MΩ
Voltage Measurement: DC 0V-±1000V, AC 30V-750V
Short-Circuit Current: Approx. 1.3mA
Instrument Weight: Approx. 600g
③ Ground Resistance Tester
Ground Resistance Measurement Range: 0-2000Ω
Ground Voltage Measurement Range: 0-200V
④ Digital Multimeter
DC Voltage: 400mV-1000V
AC Voltage: 400mV-1000V
DC Current: 400μA-10A
AC Current: 400μA-10A
Resistance: 400Ω-40MΩ
Capacitance: 4nF-200nF
Frequency: 9.999Hz-9.999MHz
Temperature: -20℃-600℃
Diode and Continuity Testing