Rivet Nuts for NEV Battery Pack

Rivet Nuts for NEV Battery Pack

Structural Fastening Solutions for High-Voltage Battery Systems

1. Application Background: Structural Requirements of NEV Battery Packs

New energy vehicle (NEV) battery packs operate under complex mechanical and electrical environments, including vibration, thermal cycling, humidity exposure, and high-voltage safety constraints.

The battery enclosure system must maintain:

• Long-term structural sealing integrity

• Vibration-resistant fastening stability

• Lightweight design for vehicle range optimization

• Corrosion resistance under electrolyte exposure risk

Traditional welding and self-tapping screws often fail in aluminum battery tray structures due to:

• Thermal deformation

• Thread stripping in thin-walled materials

• Inconsistent preload under vibration

To solve these engineering limitations, rivet nuts for NEV battery pack applications have become a preferred fastening solution.

2. Engineering Solution: Rivet Nut Structural System

Rivet nuts provide a single-sided installation threaded fastening system for thin-wall structures (0.8–6.0 mm), widely used in:

• Battery tray covers

• Cooling plate brackets

• High-voltage junction housings

• Structural reinforcement points

Recommended product types:

• Aluminum rivet nuts (lightweight structures)

• Stainless steel rivet nuts (corrosion-critical zones)

• Hex body anti-rotation rivet nuts

• Sealed rivet nuts for waterproof battery enclosures

 3. Key Engineering Advantages

3.1 No Welding Deformation

Unlike welded studs, rivet nuts eliminate heat input, preventing:

• Aluminum warping

• Coating damage

• Structural stress concentration

3.2 High Vibration Resistance

Mechanical interlock deformation ensures stable torque retention under:

• Road vibration

• Battery pack resonance frequency

• Thermal expansion cycles

3.3 Lightweight Structural Integration

Optimized designs reduce battery pack structural weight by enabling:

• Thin-wall aluminum adoption

• Reduced secondary reinforcement parts

 4. Installation Process Optimization

NEV production lines typically use:

• Hydraulic riveting tools

• Servo-controlled pull force systems

• Automated positioning fixtures

Installation cycle time:

• 6–10 seconds per point

• Fully compatible with robotic assembly systems

 5. Typical Application Scenarios

• CTB (Cell-to-Body) battery structures

• Battery module frame fastening

• Thermal management plate assembly

• EV chassis integrated battery enclosures

 6. Engineering Value

• Improved structural reliability under vibration

• Reduced assembly cycle time

• Higher consistency in mass production

• Lower total cost of ownership (TCO)

Packaging Standard

At Juxin Fasteners, we apply standardized export packaging to ensure product protection, traceability, and compliance with international logistics requirements.

1. Standard Export Packaging

Unless otherwise specified, all products will be packed according to our factory standard export packaging, which includes:

Moisture-resistant inner protection

Poly bag or small box packing as required

Reinforced export cartons

Clear labeling with part number, specification, batch number, and quantity

Palletizing for sea or air shipment when necessary

Our standard packaging is designed to ensure safe transportation, efficient warehousing, and long-distance international shipping.

2. Customized Packaging Options

We also provide customized packaging solutions according to customer requirements, including but not limited to:

Private labeling

Customized barcodes

Specific carton dimensions

Retail packaging

Special pallet configuration

Customer-specific marking and identification

So that you know, customized packaging may involve additional costs and extended lead time depending on the complexity of the requirements.

3. Compliance & Quality Assurance

All packaging processes are controlled under our ISO 9001 quality management system to ensure consistency, traceability, and product integrity throughout the supply chain.