Connecting Terminal with Deflectable Stripping Jaw for Clean Line Severing
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Solution Overview
Problem
Existing connecting terminals fail to efficiently and safely sever electric lines at any point without risking short-circuits, particularly when dealing with fine or elastic lines, and do not allow for the connection of electrical equipment in series to a continuous electric line.
Innovation Solution
A connecting terminal with a housing and a cutting mechanism featuring a severing knife and blade pocket, where the severing knife is wider than the blade pocket, allowing for clean severing and automatic stripping of the line edges, and deflectable stripping jaws that reduce the force required for severing and prevent material from entering the blade pocket, ensuring complete separation and isolation of line ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the blade pocket is widened in the breadth direction to accommodate the severing knife, then the severing operation becomes more effective, but the forces required for severing are unnecessarily increased
Solution Approach 1:
The stripping jaw is designed to be deflectable in the direction of the line, allowing it to dynamically adapt during the severing process. This dynamic configuration enables the blade pocket to effectively accommodate the severing knife without requiring excessive widening, thereby maintaining effective severing while reducing the forces needed compared to a static, overly wide blade pocket design.
2Manufacturing precision
If the severing knife is made wider than the blade pocket for clean cutting, then the line is automatically stripped at the edges, but the stripping jaw must deflect to accommodate this
Solution Approach 1:
The stripping jaw's deflectable design allows it to accommodate the wider severing knife that extends beyond the blade pocket. This deflection enables the knife to perform clean cutting and automatic stripping at the line edges without requiring a overly complex fixed structure, as the jaw naturally adapts to the knife's width during operation.
Solution Approach 2:
The wider severing knife performs dual functions: it cuts the line cleanly and simultaneously strips the insulation at the edges. This self-service approach eliminates the need for separate stripping mechanisms, reducing overall device complexity despite the jaw's deflection capability.
3Reliability
If the severing knife blocks off the line receptacle completely in the severing position, then the line is reliably severed and ends are isolated, but the blade pocket must be precisely positioned
Solution Approach 1:
The deflectable stripping jaw acts as a cushioning element that compensates for positioning variations. Even if the blade pocket is not precisely positioned due to manufacturing tolerances, the jaw can deflect to maintain proper alignment and ensure the severing knife effectively blocks off the line receptacle, guaranteeing reliable line separation and end isolation.
4Adaptability or versatility
If the connecting terminal allows severing at any point on the line, then versatility is improved, but the risk of short-circuits increases if not properly isolated
Solution Approach 1:
The severing knife is extracted from the blade pocket in the severing position, moving into a position where it completely blocks off the line receptacle. This extraction action physically separates the two line ends and isolates them from each other, eliminating the short-circuit risk that would otherwise exist with versatile in-line severing capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables reliable and clean severing of electric lines with reduced force requirements, preventing short-circuits and allowing for the connection of electrical equipment in series to the severed line, while accommodating production inaccuracies and ensuring no electrical contact between severed ends.
Implementation Method 1
at least one stripping jaw (50) which is deflectable in the direction of the line away from the blade pocket (48)
Implementation Method 2
the contact between the stripping jaw and the side face of the severing knife facing the stripping jaw ensures that the line is stripped
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The invention relates to a connecting terminal (1) for at least one electric line (6). The connecting terminal has a housing (9), a line receptacle (2) extending in a direction of the line (L) through the housing, and a cutting means (20). The cutting means (20) comprises a blade pocket (48) extending transversely to the direction of the line (L) and limited in the direction of the line by at least one stripping jaw (50) which is deflectable in the direction of the line, and a severing knife (38) oriented with its cutting edge (40) towards the blade pocket. The severing knife (38) and the blade pocket (48) are arranged to be movable relative to each other from a starting position (14) into a severing position (18). In the severing position, the severing knife at least virtually completely blocks off the line receptacle, and is received, at least in sections, in the blade pocket. This configuration makes it possible to sever the electric line cleanly at any point whatsoever by means of the connecting terminal.