Wire Harness Crimp Inspection Using Test Solution Outflow

The patent introduces test solution as an intermediary substance that penetrates through insufficient crimpings to reach the other side of the wire harness. This mediator enables indirect detection of crimping quality by observing whether the test solution appears on the opposite side, thereby achieving high measurement precision without requiring complex direct inspection equipment

The patent replaces complex mechanical inspection systems with a chemical-based detection method. Instead of using sophisticated sensors or imaging equipment to directly measure crimping quality, the system uses test solution penetration behavior (a chemical/physical process) to indicate crimping deficiencies, simplifying the overall inspection system while maintaining high detection accuracy

The patent applies partial action by using a minimal amount of test solution that only needs to penetrate through potential crimping gaps to provide detection information. The test solution is applied locally at specific inspection points rather than requiring complete disassembly or destruction of the wire harness, enabling non-destructive testing that maintains productivity while achieving sufficient verification accuracy

The patent creates a visual copy or indicator of the internal crimping quality state through the appearance pattern of the test solution on the wire harness surface. Instead of directly observing or measuring the crimping interface, the system detects the presence, distribution, or penetration depth of the test solution, which serves as a visible copy indicating the underlying crimping quality without requiring physical access to or destruction of the crimped joints