Single-Line String Lamp Anti-Tensile Lead Wire Design
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Solution Overview
Problem
Existing single-line string lamps face safety hazards due to conductive terminals being disengaged from the connecting base under lateral tension, which does not meet safety regulations and complicates manufacturing, increasing costs and inconsistency in quality.
Innovation Solution
A single-line string lamp design with enhanced anti-tensile strength lead wire segments, incorporating a conductive element with a clamping platform and a fixed part to maintain positional stability, and optionally using a thicker plastic coating or mixing non-copper materials, ensures the conductive elements remain securely engaged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single lead wire segment is used to connect lamp bodies, then the device complexity and manufacturing cost are reduced, but the conductive terminals become prone to disengagement under lateral tension
Solution Approach 1:
The lead wire segment is divided into two functional parts: a conductive element for electrical connection and a reinforcing object for mechanical strength. This segmentation allows each part to specialize in its function while working together to solve the contradiction between simplicity and reliability.
Solution Approach 2:
The lead wire segment combines copper conductive material with non-copper reinforcing materials (such as steel wires or fiber filaments) to create a composite structure. This composite design provides both electrical conductivity and high tensile strength, preventing disengagement under lateral tension while maintaining a single-line simple structure.
2Strength
If a false line is added to strand with the lead wire segment, then the anti-tensile strength is enhanced and conductive terminals remain stable, but the manufacturing process becomes complicated and costs increase
Solution Approach 1:
The reinforcing object is integrated directly into the lead wire segment structure, merging the electrical conduction function and mechanical reinforcement function into a single unified component. This eliminates the need for a separate false line, simplifying the manufacturing process while maintaining high anti-tensile strength.
Solution Approach 2:
The lead wire segment is designed to perform multiple functions simultaneously: electrical conduction, mechanical reinforcement, and structural support. This multi-functionality eliminates the need for separate false line components, reducing manufacturing complexity while enhancing anti-tensile strength.
3Reliability
If copper sheets on conductive terminals are obliquely embedded into the connecting base, then electrical connection is achieved, but the conductive terminals can be pulled out under tension causing safety hazards
Solution Approach 1:
The connecting base features a clamping platform with a curved or inclined surface that guides the conductive element at an optimal angle during insertion. This curved geometry ensures proper embedding of copper sheets while preventing oblique insertion that could lead to disengagement under tension.
Solution Approach 2:
The clamping platform acts as an intermediary structure between the conductive element and the connecting base cavity. It provides a controlled embedding path and positioning feature that ensures copper sheets are inserted at the correct angle, maintaining reliable electrical connection while preventing safety hazards from disengagement.
Data Source
AI summary
The present invention relates to a single-line string lamp, comprising a plurality of lamp bodies connected in series and a plurality of lead wire segments used for connecting two adjacent lamp bodies or connecting the lamp bodies with power connectors, wherein a conductive element is fixed at the end, which is connected with the corresponding lamp body, of each lead wire segment, and each lamp body comprises a lamp bulb, a lamp holder and a hollow connecting base. The anti-tensile strength of each lead wire segment is enhanced by mixing a plastic wire or a metal wire different from a copper material in a conductive copper wire strand of each lead wire segment, thickening each lead wire segment, or adding a plastic coating and the like, and a fixed part is fixed at a position on each lead wire segment close to the conductive element, therefore, when the lead wire segment is subjected to an outward tensile force relative to the connecting base, the relative positional stability between the conductive element and the inner wall of the connecting base can be maintained by the fixed part and each lead wire segment, so that the conductive element cannot be disengaged from an opening in the bottom of the connecting base, and the normal operation of the string lamp can be ensured. Thus, only one lead wire segment is required to connect the lamp bodies, thereby eliminating the need for a false line to bear most of a lateral tensile force.