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Custom LCP/PBT Full-Series Automotive Connectors & Supporting Precision Plastic Components
This complete set of precision molded plastic assemblies are custom high-temperature flame-retardant LCP/PBT automotive wiring harness parts, integrating main connector housings, high-voltage power plugs, multi-row signal terminal blocks, waterproof sealing accessories, locking positioning auxiliary fittings and protective shells. Molded with glass-filled high-performance special engineering plastics, the machining tolerance reaches ±0.002mm. The full series covers signal transmission, high-current power distribution and terminal anti-loosening auxiliary functions, supporting matching assembly for fuel passenger vehicles and new energy vehicles.

 

  • Main Product: LCP/PBT Full-Series Automotive Connectors & Supporting Plastic Components
  • Machining Precision: ±0.002mm ultra-precision
  • Optional Materials: LCP, V0 flame-retardant glass fiber reinforced PBT
  • Processing Technology: High-temperature precision injection molding, 5-axis CNC, micro EDM, wire cut, mirror polishing
  • Product Features: V0 flame retardancy, low thermal expansion, multi-color circuit classification, integrated fool-proof locking, complete matching auxiliary accessories
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Detailed Introduction

This full automotive connector component series adopts two core high-temperature engineering plastics to adapt diverse vehicle working conditions.

LCP material features ultra-low thermal expansion and high-frequency insulation performance, applied to dense miniature multi-pin signal terminal blocks and tiny positioning auxiliary parts inside engine compartments, effectively avoiding terminal offset caused by long-term high-temperature heating. V0 flame-retardant glass-filled PBT delivers outstanding mechanical rigidity and impact resistance, ideal for large multi-circuit junction boxes, cylindrical high-voltage plugs and mounting brackets that bear heavy mechanical load and circuit heating risks.

The product portfolio covers all core matching parts of automotive wiring harness systems: long multi-row signal terminal blocks in blue, green, brown and white, cylindrical high-current power plugs, color-coded modular signal housings, waterproof sealing rubber plugs, terminal locking wedges, anti-retention pins and locking operation covers. Multi-color differentiation is adopted to distinguish power, signal, ground and high-voltage circuits for quick assembly inspection. Every main housing and auxiliary accessory is designed with matched precision clearance, forming dual anti-loosening protection to eliminate poor contact caused by vehicle vibration. Optimized thin-wall melt flow mold design solves shrinkage, warpage and flash defects during molding high-temperature flame-retardant plastics.

Complete Production Workflow

  1. Custom precision mold core processing: 5-axis CNC rough & fine milling, micro sinker EDM for complex curved contours and tiny grid pin slots
  2. Vacuum stress relief heat treatment for mold steel to stabilize cavity dimensions 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 with customizable color masterbatch blending
  5. Post-molding full 3D coordinate dimensional inspection, burr trimming, high-temperature aging and flame retardancy safety testing

All finished plastic components pass thermal stability and vibration anti-loosening aging verification. Custom development is fully supported based on customer circuit layout drawings: pin grid quantity, shell wall thickness, plastic flame retardant grade, locking mechanism and color scheme can be adjusted according to operating temperature, current load and vehicle assembly requirements. The full diversified specification series realizes one-stop supporting supply from miniature sensor signal connectors to new energy vehicle high-voltage power distribution assemblies.

Specification Table

ItemDetails
Product NameCustom LCP/PBT Full-Series Automotive Connectors & Supporting Precision Plastic Components
Core StructureMulti-row signal terminal blocks, cylindrical high-voltage power plugs, waterproof sealing stoppers, terminal locking wedges, anti-retention pins, fool-proof anti-reverse positioning structures, locking operation covers
Machining Tolerance±0.002mm geometric tolerance (pin hole position accuracy, flatness, wall thickness & auxiliary part matching clearance consistency)
Optional Plastic Raw MaterialsLiquid Crystal Polymer (LCP), V0 flame-retardant 15%/30% glass fiber reinforced PBT
Supporting Mold Manufacturing Process5-Axis CNC Milling, Micro EDM, Wire Cut WEDM, Vacuum Stress Relief Heat Treatment, High-Temperature Resistant Mirror Polishing, Optional Anti-Wear PVD Coating
Product AdvantagesMinimal thermal deformation under sustained high-temperature environment, V0 grade flame retardant safety, complete matching parts series, multi-color circuit classification for easy identification, double anti-loosening terminal protection, wear-resistant for repeated plugging & maintenance, no post-molding warpage or shrinkage
Application FieldsNew energy vehicle high-voltage wiring harness systems, automotive engine cabin signal & power connectors, car interior instrument wiring assemblies, vehicle body control module wiring junction modules

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