High Voltage Manufacturing for EV & Energy Storage Systems
Engineering-grade high voltage control box solutions designed for safety, sealing reliability, thermal stability, and seamless system integration.
What Is a High Voltage Control Box
A High Voltage Control Box is a critical component in EV and energy storage systems, responsible for housing and protecting high-voltage electrical and control elements.
It must ensure electrical safety, mechanical protection, environmental sealing, and long-term reliability. We manufacture HV control boxes as part of a complete battery and power system architecture.
Our Role in High Voltage Control Box Manufacturing
We focus on mechanical and system-level manufacturing—not electronic component supply.
Enclosure Structure Design
HV control boxes must withstand electrical, mechanical, and environmental stress. Structures are optimized for both protection and manufacturability.
- Aluminum and steel enclosures
- Reinforced structural ribs
- Flatness and dimensional stability
- Vibration-resistant construction
Material Selection and Processing
Material selection is aligned with electrical safety and corrosion resistance requirements.
CNC Machining for High Voltage Housings
Precision machining ensures reliable electrical and mechanical interfaces, sealing surfaces, and stable long-term assembly.
- Tight tolerance machining
- Connector and cable interface features
- Flat sealing surfaces
- Complex internal geometries
Sealing and Environmental Protection
Environmental protection is critical for HV components—sealing architectures must be reliable in vehicle and outdoor conditions.
- IP67 sealing architecture
- Gasket & O-ring grooves
- Controlled ingress points
- Moisture & dust protection
Thermal Considerations and Heat Management
HV control boxes often contain heat-generating components. We support designs that improve heat dissipation and enable cooling integration.
- Passive heat dissipation paths
- Integration with cooling plates / heat sinks
- Thermal isolation from sensitive components
- Stable operating temperatures
Electrical Interface & Cable Management
Mechanical design is coordinated with electrical integration needs to improve assembly efficiency and serviceability.
EMI and Safety-Oriented Structural Design
HV control boxes must support electrical safety and EMC requirements through structural zoning, grounding structures, and clearance support.
- Separation of HV and LV zones
- EMI shielding-friendly enclosure design
- Secure grounding structures
- Clearance & creepage distance support
Manufacturing and Assembly Support
Designed for repeatable manufacturing—supporting your assembly lines with stable interfaces, torque strategy, and sequence optimization.
Quality Control and Inspection
Quality control is integrated throughout production to support downstream system validation.
- Dimensional inspection
- Sealing interface verification
- Assembly fit checks
- Process documentation & traceability
Application Scenarios
High voltage control boxes are used across EV, ESS, and heavy-duty equipment with high reliability demands.
Integration with Battery and Power Systems
Our HV control box designs align with pack enclosures, cooling systems, BMS and power electronics—reducing system-level integration risk.
Example Project Scenarios
Typical HV control box builds for different environments and integration needs.
Why Choose Us for High Voltage Control Box Manufacturing
Built around engineering expectations: manufacturability, interface clarity, sealing reliability, and validation evidence.
Contact & Technical Consultation
Discuss your high voltage control box requirements with our engineering team. Upload your drawings (STEP / DWG / PDF) for technical review.
- • Enclosure drawings (STEP / DWG / PDF)
- • Connector list + cable constraints
- • Sealing target + application environment