Electric vehicle (EV) ultra-fast charging equipment is subject to stringent standards. Reliable assembly force is key to ensuring the safe and stable operation of the ultra-fast charging system, and the tightening process is the core link for high-voltage connections and overall equipment reliability.

I. Four Core Challenges in Assembling EV Ultra-Fast Charging Equipment

1. Consistency Challenge: High-Voltage Connections Prone to Heating, Torque Precision Hard to Control

Core components such as energy storage cabinets, EMS controllers, and transformers involve numerous multi-point grounding and copper busbar connections. Under high-voltage conditions, deviations in torque output directly lead to increased contact resistance and can even create safety hazards. The consistency of tightening torque is the primary test in ultra-fast charging equipment assembly.

2. Error-Proofing Challenge: Dense Screws Prone to Missing, Low Electrical Connection Reliability

Components like DC charging piles and PCBA control boards have a high density of screws in compact layouts. Manual assembly is highly prone to issues like missing screws, re-tightening, or incorrect tightening. This leads to equipment operational failures, reduced yield rates, and can even affect the stable operation of the entire ultra-fast charging system. Manual error-proofing is costly and inefficient.

3. Loosening Resistance Challenge: Prone to Loosening from Thermal Expansion and Vibration, Long-Term Stability Hard to Guarantee

Ultra-fast charging equipment operates with high-frequency thermal expansion/contraction and continuous vibration. Critical areas like power modules, liquid-cooled piping, and high-voltage connectors demand extremely high screw loosening resistance. Manual tightening or ordinary tools often result in problems like "overtightening that damages the workpiece or undertightening that leads to later failure." Torque attenuation over long-term operation can cause connection loosening, seal failure, and other malfunctions, significantly shortening the equipment's service life.

4. Integration Challenge: Difficult to Adapt to Multiple Workstations, Data Silos Constrain Quality Management

Ultra-fast charging production lines often consist of manual workstations. Traditional wired tools are restricted by cables, making them difficult to adapt to compact and changing workstation layouts. When switching to wireless tools, coordinating communication among multiple tools and centralized data collection is difficult, often leading to data silos. Tightening process data cannot be uploaded in real-time or monitored centrally, making quality issues difficult to trace and hindering standardized production line management and process optimization.

II. Danikor Digital Intelligent Tightening System: A Full-Chain Solution to Ultra-Fast Charging Assembly Challenges

Danikor introduces a digital intelligent tightening solution centered on wireless sensor tools. It addresses the pain points of ultra-fast charging assembly from four dimensions: precision, error-proofing, anti-loosening, and data interoperability.

1. High-Precision Tightening: Self-Developed Transmission Technology Ensures High-Voltage Connection Consistency

Torque stability originates from precise transmission. Danikor has built its own processing system, overcoming the bottleneck in small-module gear processing with self-developed small-module planetary gear technology, ensuring torque output accuracy from the source.

• High-Standard Process: Avoids the large modulus and tolerance defects of ordinary gears, combining high hardness with high strength to suit the high-frequency, high-intensity demands of ultra-fast charging.

• High-Precision Control: Meets ISO 5393 standards, with torque precision within 6σ ±5%, ensuring highly consistent clamping force for critical connections like copper busbars and grounding.

• Full-Angle Inspection: Tools undergo full-angle dynamic testing before leaving the factory, ensuring stable and controllable torque output at every stress point and eliminating the risk of heating in high-voltage connections.

2. Intelligent Error-Proofing: Program Logic-Driven Prevention of Manual Assembly Errors

For the dense screw scenarios in ultra-fast charging equipment, Danikor has built a multi-tiered intelligent error-proofing system to significantly reduce human error rates.

• Job Task Mode: Preset Pset tightening programs with automatic counting, accurately preventing issues like missing screws or re-tightening.

• Real-Time Process Monitoring: Real-time acquisition of torque, time, and angle curves to dynamically identify abnormalities like thread stripping or floating screws, providing timely warnings and stopping the process.

• Scanning-Linked Traceability: Wireless tools with built-in scanning functionality or external scanners enable "workpiece-screw-tightening data" binding, creating a closed quality loop.

• Ergonomic Optimization: Supports pulse function to counteract high-torque reaction forces, reducing operator fatigue and improving manual assembly stability.

3. Strong Anti-Loosening Performance: Precise Torque Output to Withstand Thermal Expansion and Vibration Effects

For the frequent thermal expansion/contraction and vibration conditions of ultra-fast charging equipment, Danikor tools ensure long-term anti-loosening capability for critical parts through precise torque control.

• Precise and Controllable Torque: Prevents workpiece cracking or thread stripping from overtightening, and prevents torque attenuation and connection failure from undertightening.

• Adapts to Harsh Conditions: Dedicated tightening solutions for areas like power modules, liquid-cooled piping, and high-voltage connectors ensure no loosening during long-term operation, guaranteeing stable and reliable equipment.

4. Direct Data Interconnection: Breaking Down Data Silos, Empowering Digital Quality Management

Adapted for high-volume manual production lines for ultra-fast charging, Danikor wireless tightening tools address the challenges of multi-workstation layouts and data collection with strong anti-interference and high adaptability.

• Flexible Wireless Deployment: Eliminates cable restrictions, adapting to compact and changing ultra-fast charging assembly workstations, supporting rapid line changes and multi-workstation collaboration.

• Real-Time Data Transmission: Optimized wireless signal coverage with strong anti-interference capability ensures real-time upload of tightening data.

• Seamless MES Integration: Supports custom protocols for direct connection to enterprise MES systems, providing data support for process optimization.

Beyond the ultra-fast charging field, Danikor's solutions are widely applied in manual, semi-automated, and automated assembly across manufacturing scenarios such as automotive final assembly, automotive parts, energy storage, and 3C electronics, helping the entire industry chain achieve efficient, reliable, and intelligent assembly upgrades.