Cable Terminal Connection Device with Stepped Insert Profile
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Solution Overview
Problem
Existing connection devices for electric cable terminal sections face challenges in accommodating cables with varying diameters, requiring complex mechanisms like inserts and angularly offset screws, which complicate manufacturing and usage.
Innovation Solution
A connection device featuring a conductive element with axial and radial threads, a gutter-shaped insert with stepped profiles, and clamping screws that allow for easy installation and removal without angular immobilization, enabling excellent clamping and electrical contact without the need for precise indexing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a tubular insert is placed in the housing to accommodate smaller cables, then the device can handle a wider range of cable cross-sections, but the device complexity increases
Solution Approach 1:
The single housing is designed with a universal internal geometry that can accommodate both small and large cable cross-sections without requiring separate inserts or components. The housing internally adapts to different cable sizes through its geometric design, eliminating the need for additional adaptability mechanisms.
Solution Approach 2:
The insert mechanism is completely removed from the design. Instead of adding a tubular insert to handle smaller cables, the invention extracts this additional component entirely and relies solely on the housing's internal geometry to accommodate all cable sizes within the specified range.
2Stability of the object's composition
If projections and recesses are added to maintain insert orientation, then the insert remains correctly oriented, but the ease of manufacture decreases
Solution Approach 1:
All indexing features such as projections and recesses are removed from the design. The invention extracts these orientation-maintaining elements and replaces them with a geometric housing design that inherently accommodates cables of various orientations and sizes without requiring precise angular positioning.
Solution Approach 2:
The housing employs asymmetric geometric features that naturally guide and accommodate cables of different sizes and orientations without requiring symmetric indexing elements. The asymmetric design allows the cable itself to define its orientation within the housing.
3Adaptability or versatility
If multiple tapped holes are positioned with axial and angular distances, then clamping of various cable sizes is achieved, but the device complexity increases
Solution Approach 1:
The housing incorporates a universal tapped hole arrangement that serves multiple functions: securing both small and large cables effectively. The holes are positioned and dimensioned to provide universal clamping capability across the full range of cable cross-sections without requiring additional fastening points or complex positioning.
4Ease of operation
If the insert is free to pivot without angular immobilization, then the ease of operation improves, but the stability of the insert orientation decreases
Solution Approach 1:
The invention extracts the concept of insert pivoting and angular immobilization entirely. Instead of having an insert that can pivot and then be locked in position, the design removes the insert component altogether and uses the housing geometry to directly accommodate cables in any orientation, making installation and removal trivial without compromising stability.
Data Source
Figure 1~3
Figure 4~5
Figure 6~9
AI summary
The device comprises a tubular portion (11) having a housing (17) for said end section; a gutter-shaped insert (4) configured to be disposed in the housing; and axially and angularly offset clamping screws. Each of the longitudinal intermediate faces (22, 23) of the insert has a stepped profile.