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Custom LCP/PBT High-Temp Automotive Wiring Harness Connector Housings
This full range of precision molded parts are custom high-temperature resistant LCP/PBT plastic automotive connector housings, covering multi-pin signal terminal blocks, high-voltage power plugs, locking buckle assemblies and miniature sensor connector shells. Molded with glass-filled high-performance special engineering plastics, the machining tolerance reaches ±0.002mm. These components feature outstanding thermal stability, high insulation strength and anti-wear locking structure, supporting matching assembly for new energy vehicles and traditional automotive wiring harness systems.

 

  • Main Product: LCP/PBT Automotive Wiring Harness Connector Housings
  • Machining Precision: ±0.002mm ultra-precision
  • Optional Materials: LCP, glass fiber reinforced PBT
  • Processing Technology: High-temperature precision injection molding, mold 5-axis CNC, micro EDM, wire cut, mirror polishing
  • Product Features: Low thermal expansion, high voltage insulation, integrated anti-loose buckles, multi-grid pin layout, diversified size & color specifications
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Detailed Introduction

This automotive connector housing series adopts two core high-temperature engineering plastics to meet different vehicle working environment demands.

LCP material delivers ultra-low thermal expansion and excellent high-frequency insulation performance, applied to compact multi-pin signal connectors inside engine cabins to avoid terminal position deviation under long-term high-temperature conditions. Glass fiber reinforced PBT provides high mechanical rigidity and repeated plug wear resistance, ideal for high-current orange high-voltage power connectors with heavy locking load.

The product lineup includes dense multi-row pin signal blocks, circular high-voltage plug shells, one-piece locking buckle assemblies and small sensor connecting bases. Each housing integrates precise pin positioning holes, anti-reverse fool-proof structures and built-in snap locks to realize tight locking and zero-gap matching with metal conductive terminals. Optimized thin-wall injection flow path design effectively solves shrinkage, warpage and flash defects frequently occurring during high-temperature plastic molding.

Complete Production Workflow

  1. Custom precision mold core processing: 5-axis CNC rough milling, micro sinker EDM for tiny multi-grid pin hole contours
  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 high-temperature plastic and lower demolding resistance
  4. Segmented temperature-controlled precision injection molding for high-performance engineering plastics
  5. Post-molding full 3D coordinate dimensional inspection, burr trimming and high-temperature aging insulation testing

All finished connector housings pass thermal stability aging and insulation breakdown tests. Custom development is fully supported based on customer terminal layout drawings: pin grid quantity, shell wall thickness, plastic material grade, locking mechanism and color can be adjusted according to operating temperature, voltage load and service life requirements. The diversified specification series covers miniature signal connectors to new energy high-voltage power connectors for one-stop supporting supply.

Specification Table

ItemDetails
Product NameCustom LCP/PBT High-Temp Automotive Wiring Harness Connector Housings
Core StructureMulti-grid pin signal terminal blocks, high-voltage power connector shells, integrated anti-loose locking buckles, fool-proof anti-reverse positioning structures, miniature sensor connector bases
Machining Tolerance±0.002mm geometric tolerance (pin hole position accuracy, flatness, wall thickness consistency)
Optional Plastic Raw MaterialsLiquid Crystal Polymer (LCP), 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
Product AdvantagesMinimal thermal deformation under sustained high-temperature operation, high voltage insulation resistance, full diversified size & color options, integrated fool-proof locking design, wear-resistant for repeated plugging, no post-molding warpage or shrinkage
Application FieldsNew energy vehicle high-voltage wiring harness connectors, automotive engine cabin signal connectors, vehicle sensor terminal blocks, automotive control module wiring connectors

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