Multi-Member Cable Connector for Stable Lug Positioning
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Solution Overview
Problem
Conventional cable connectors lack the ability to securely fix cables and lugs, leading to instability and potential deformation or damage during connection, and do not adequately support the force applied, making precise positioning and dust/moisture protection challenging.
Innovation Solution
A cable connector design featuring a first member fixed to a case with a through-hole, a second member with a coupling port and inward protruding lug fixing parts, and a third member with a coupling hole and inward protruding lug fixing parts, along with a sealing mechanism, to securely accommodate and guide cables, support forces, and prevent dust/moisture ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional insulation cap is used to connect the cable and circuit board, then the structure is simple, but the cable and lug cannot be stably fixed, leading to connection instability
Solution Approach 1:
The connector is divided into three separate members: a first member for cable insertion and fixation, a second member for lug coupling, and a third member for additional support. This segmentation allows each component to perform its specific function effectively, providing stable fixation while maintaining reasonable structural complexity
Solution Approach 2:
The connector extends in the vertical dimension with three stacked members, creating a multi-layered structure that provides stable support for both the cable and lug. This vertical arrangement allows force distribution across multiple levels, improving connection reliability
2Device complexity
If a conventional insulation cap without support structure is used, then the device is simple, but stress causes deformation or damage to the circuit board and cable
Solution Approach 1:
The support function is distributed across three separate members rather than concentrated in a single cap. Each member provides localized support at different points, effectively managing stress distribution and preventing deformation of the circuit board and cable
Solution Approach 2:
The three-member connector structure acts as an intermediary between the cable and circuit board, absorbing and distributing mechanical stress. This intermediate structure protects the connected components from direct stress transmission that would cause damage
3Device complexity
If the insulation cap is not fixed, then the structure is simple, but the lug cannot be positioned accurately, making screw coupling difficult
Solution Approach 1:
The fixation function is separated into different members: the first member fixes the cable position through the through-hole, while the second and third members provide coupling ports and holes at precise positions. This segmentation enables accurate positioning of both cable and lug independently
Solution Approach 2:
The connector structure itself provides self-alignment and self-positioning features through its fixed members, eliminating the need for additional external fixation mechanisms. The rigid first member anchored to the case automatically establishes a reference position for accurate cable and lug alignment
4Object-affected harmful factors
If a multi-member connector with sealing mechanism is used, then dust/moisture protection is improved, but the device complexity increases
Solution Approach 1:
The sealing mechanism is nested within the existing three-member structure, with sealing elements integrated into the interfaces between members. This nested approach provides dust and moisture protection without requiring a completely separate sealing system, minimizing additional complexity
Data Source
AI summary
A cable connector is provided. The cable connector according to an aspect of the present disclosure is a cable connector for connecting a lug, which is formed at one end of a cable and includes a protrusion with a greater diameter than the cable, to a circuit board provided within a case, the cable connector comprising: a first member fixed to the case and having a through-hole into which the cable can be inserted; and a second member provided at one side of the first member and having a coupling hole to which the protrusion of the lug can be coupled, wherein the second member includes a first lug fixing portion formed at the inlet side of the coupling hole, adjacent to the first member, to protrude inward into the coupling hole.