Cable Gland Union Elbow for Flexible Routing
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Solution Overview
Problem
Existing cable glands lack flexibility and cost-effectiveness in adapting to different applications, particularly in efficiently changing cable direction and providing comprehensive protection against environmental hazards while maintaining compactness and compliance with standards.
Innovation Solution
The development of cable glands with a union elbow featuring a bent interior cavity, allowing for angled changes in cable direction, combined with components like O-rings, potting chambers, locking collars, and grounding springs, which provide strain relief, environmental protection, and compliance with standards such as NEC, while enabling 360° rotational flexibility and easy installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional straight cable glands are used, then cable routing is simple, but space efficiency and directional flexibility are poor
Solution Approach 1:
The cable gland incorporates a union elbow with a bent interior cavity that provides a 90-degree angle configuration. This curved geometry allows the cable to change direction efficiently within a compact space, reducing the volume required for cable coupling while maintaining routing flexibility. The elbow portion enables the cable to bend naturally around the curve rather than requiring sharp angles or extended straight runs.
Solution Approach 2:
The union elbow introduces a directional dimension to the cable gland, transitioning from a linear straight-through configuration to a three-dimensional angled routing solution. This allows cables to utilize vertical or lateral space more efficiently by changing direction at 90 degrees, optimizing the spatial arrangement in panel mounting applications.
2Reliability
If brass components are used for cable glands, then corrosion resistance and durability are improved, but manufacturing cost increases
Solution Approach 1:
The invention changes the material parameter from traditional brass to alternative materials such as stainless steel or aluminum alloys. These materials provide comparable or superior corrosion resistance and durability while reducing manufacturing costs. The design maintains the functional requirements for hazardous environment protection without being constrained by the assumption that brass is the only suitable material.
Solution Approach 2:
The cable gland employs composite construction combining different materials for different components. The union elbow and various fittings may use cost-effective materials like aluminum or stainless steel, while critical sealing and grounding components use specialized materials with appropriate properties. This composite approach optimizes the balance between reliability and manufacturing cost.
3Reliability
If cable glands are designed for specific applications, then performance in that application is optimized, but adaptability to different applications decreases
Solution Approach 1:
The cable gland design incorporates universal features that enable it to serve multiple applications. The union elbow configuration can accommodate different cable types and routing requirements, while the modular component structure allows adaptation to various mounting scenarios. The design maintains standardized interfaces and protective features that work across different application contexts, reducing the need for application-specific customizations.
Solution Approach 2:
The cable gland is divided into separate functional components including the union elbow, body, seal elements, and mounting features. This segmentation allows individual components to be optimized for specific functions while maintaining overall versatility. The modular structure enables reconfiguration and adaptation to different applications by selecting appropriate component combinations.
4Object-affected harmful factors
If complex sealing and grounding components are included, then protection against environmental hazards is improved, but device complexity increases
Solution Approach 1:
The cable gland integrates multiple protective functions into a unified design. The union elbow structure combines sealing, grounding, and strain relief functions in a coordinated manner. The seal clamp and rubber seal work together as an integrated sealing system, while the grounding spring and armor stop are positioned to provide continuous protection. This merging reduces the perceived complexity by presenting a cohesive protective system rather than separate discrete components.
Data Source
AI summary
The present disclosure provides cable glands having an entry portion, an elbow portion and an exit portion. The entry portion includes an entry component. The elbow portion is physically coupled to the entry portion and includes a locking collar, a snap ring and a union elbow. The exit portion is physically coupled to the elbow portion and includes a middle nut, a rubber seal, a seal clamp and a back nut.