Connection Terminal With Protection Wall for Positional Stability
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Solution Overview
Problem
Existing connection terminals with engaging parts are prone to positional shift due to external forces, which can cause the engaging parts to deform and release engagement, leading to relative rotation of terminal fittings, especially when the engaging parts or engaged parts have insufficient strength or are not adequately protected.
Innovation Solution
A connection terminal design featuring two terminal members with hollow tubular wire connecting parts and flat plate attaching parts, where one terminal member has a bent part with an opening as the engaging part and the other has a protection wall part with a protruding piece as the engaged part, ensuring that external forces act on the protection wall rather than the bent part, and incorporating rotation-preventing parts to enhance rigidity and maintain engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If an engaging part is provided in one terminal fitting and an engaged part in the other terminal fitting to prevent relative positional shift, then the positional stability is improved, but the engaging part becomes vulnerable to external forces causing resilient deformation and engagement release
Solution Approach 1:
The patent introduces a protection wall part as an intermediary structure between the external environment and the engaging part. This protection wall part absorbs and redirects external forces, preventing them from directly acting on the engaging part. The protection wall serves as a mediator that protects the vulnerable engaging part while maintaining the positional stability function.
Solution Approach 2:
The protection wall part is designed to preemptively absorb and distribute external forces before they can reach the engaging part. By providing this protective barrier in advance, the system prevents resilient deformation of the engaging part that would otherwise occur when external forces are applied directly to it.
2Reliability
If the engaging part is made stronger to resist external forces, then the engagement reliability is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent divides the terminal fitting into distinct functional segments: the engaging part for positional prevention, the protection wall part for force absorption, and the attaching part for mounting. This segmentation allows each component to be optimized for its specific function without requiring the engaging part to bear excessive structural complexity for force resistance.
Solution Approach 2:
Instead of strengthening the engaging part in the same dimensional plane (which would increase complexity), the patent adds a new dimensional element - the protection wall part that extends perpendicularly to shield the engaging part. This dimensional addition provides protection without complicating the engaging part's own structure.
3Stability of the object's composition
If rotation-preventing parts are added to enhance rigidity and prevent relative rotation, then the positional stability is improved, but the manufacturing complexity increases
Solution Approach 1:
The rotation-preventing parts are merged with the protection wall part and attaching part as integrated features rather than separate components. The protection wall part itself is configured to provide rotational constraint, and the attaching part includes integrated rotation-preventing features, eliminating the need for additional separate parts and simplifying manufacturing.
Data Source
Figure 1
Figure 2(a)~2(b)
Figure 3(a)~3(b)
AI summary
Provided is a connection terminal (1) comprising terminal members (2, 3) that include: cylindrical wire connection parts (21, 31) which each have a conductor of a wire inserted therein, and which are electrically connected to the conductor; and flat plate-shaped attachment parts (22, 32) which are contiguous with the wire connection parts.