Detailed Introduction

This automotive power distribution housing series adopts two core flame-retardant high-temperature engineering plastics to adapt vehicle power circuit working conditions.

LCP material has ultra-low thermal expansion and high flame retardant grade, applied to dense miniature multi-pin junction blocks inside engine cabins to prevent terminal displacement and high-temperature ignition risks under long-term heating. Flame-retardant glass-filled PBT delivers outstanding mechanical strength and anti-abrasion performance, ideal for large-capacity fuse boxes bearing fuse heating and frequent maintenance disassembly.

The product lineup covers multi-circuit fuse distribution boxes with built-in clamping buckles, ultra-dense grid multi-row power junction blocks and integrated mounting fixed connector shells. Each housing is integrated with independent fuse positioning slots, anti-reverse terminal fool-proof structures and locking brackets for vehicle body installation, realizing stable power circuit shunting and reliable terminal locking. Optimized heat dissipation flow path mold design effectively solves thermal deformation and flash defects of plastic parts under long-time fuse heating environment.

Complete Production Workflow

1. Custom precision mold core processing: 5-axis CNC rough milling, micro sinker EDM for dense tiny pin and fuse slot contours
2. Vacuum stress relief heat treatment for mold steel to stabilize cavity dimension under continuous high-temperature injection cycles
3. Multi-stage mirror polishing to reduce melt adhesion of LCP/PBT flame-retardant plastic and lower demolding resistance
4. Segmented temperature-controlled precision injection molding for flame-retardant high-temperature engineering plastics
5. Post-molding full 3D coordinate dimensional inspection, burr trimming and high-temperature flame retardant aging testing

All finished housings pass thermal stability and flame retardancy verification tests. Custom development is fully supported based on customer circuit layout drawings: fuse slot quantity, pin grid density, plastic material flame retardant grade, locking and mounting structure can be adjusted according to circuit load, working temperature and vehicle assembly requirements. The product covers small signal junction blocks to large multi-circuit fuse boxes for one-stop supporting supply of automotive electrical distribution components.

Specification Table