Cable Annulus Sealing for Waterproof Outlet Housing
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Solution Overview
Problem
Current electronic devices face water penetration issues when cables are overextended, leading to potential malfunctions and increased maintenance costs, which are addressed by using a tight-fitting member with specific specifications and tightening forces, but this approach is costly and complicates assembly.
Innovation Solution
An electronic system design featuring a housing with a through hole and a cable with an annulus that surrounds the wire, where the annulus is disposed on the housing through a connecting member, reducing material costs and simplifying assembly while providing a water-proof seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a tight-fitting member with special specifications is used to prevent water penetration, then water-proof performance is improved, but material cost and assembly difficulty increase
Solution Approach 1:
The cable's outer sheath is designed to function as its own tight-fitting member. The outer sheath itself, without requiring additional specialized components, provides the water-proof sealing function through its structural design and material properties, thereby eliminating the need for extra tight-fitting members and reducing assembly complexity
Solution Approach 2:
The outer sheath of the cable serves multiple functions simultaneously: it provides electrical insulation, mechanical protection, and water-proof sealing. By making the outer sheath multi-functional, the patent eliminates the need for separate specialized components, reducing both material cost and assembly difficulty while maintaining water-proof performance
2Reliability
If a tight-fitting member with special specifications is used to prevent water penetration, then water-proof performance is improved, but overall material cost increases
Solution Approach 1:
The patent merges the functions of the cable's outer sheath with those of a traditional tight-fitting member. By combining the sealing function into the existing outer sheath structure, the patent eliminates the need for separate specialized components, thereby reducing overall material cost while maintaining water-proof performance
Solution Approach 2:
The outer sheath is designed to serve itself as the water-proof sealing component. Instead of requiring additional specialized tight-fitting members, the outer sheath's own structure and material properties are optimized to provide the necessary sealing function, reducing material cost
3Reliability
If a specific tightening force is applied to the tight-fitting member, then water-proof sealing is improved, but assembly difficulty increases
Solution Approach 1:
The patent employs a dynamic sealing mechanism where the outer sheath's elasticity and flexibility allow it to adapt to different installation conditions. Instead of requiring precise control of tightening force, the outer sheath naturally conforms to the housing opening through its elastic properties, simplifying the assembly process while maintaining effective water-proof sealing
Solution Approach 2:
The patent changes the approach from controlling tightening force to utilizing material properties. By selecting outer sheath materials with appropriate elastic modulus and flexibility, the sealing effect is achieved through material deformation rather than controlled tightening force, thereby simplifying assembly operations
Data Source
AI summary
An electronic system, an outlet structure and a cable are provided. The outlet structure includes a housing, a cable and a positioning member. The housing has a through hole and a receiving slot. The receiving slot is disposed on a second side of the housing. The through hole extends to a first side of the housing from the receiving slot. The cable includes a wire and an annulus annularly disposed on the wire, and has a groove set on one side of the annulus against the wire which passes though the through hole. The annulus is disposed in the receiving slot of the housing and on the through hole. The positioning member engages in the groove and is fixed on the second side of the housing. The outlet structure not only reduces overall material cost, but also simplifies overall assembly difficulty.