Multistage Parallel Loop-Free Decorative Light String Design
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Solution Overview
Problem
Existing decorative light strings lack versatility in combining different lamp styles, are inconvenient to carry and use, and have a high cost due to the need for multiple sockets and a series connection that makes the entire string vulnerable to damage if one lamp is broken.
Innovation Solution
A multistage parallel type loop-free decorative light string design that includes a main power cable with lamps connected in parallel, branch power cables connected in parallel to the main cable, and metal terminals for secure wire crimping, allowing for the combination of various lamp styles at low cost and reducing the volume and cost of the branch power cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If lamps are connected in series through the power cable, then the light string can be manufactured with a simple structure, but the entire light string will be damaged if one lamp is damaged
Solution Approach 1:
The patent divides the light string into multiple independent parallel branches, each with its own power cable and lamp sequence. This segmentation ensures that a fault in one branch does not affect other branches, resolving the contradiction between simple structure and reliability.
Solution Approach 2:
The patent changes the electrical connection parameter from series to parallel configuration. This parameter change allows each lamp to be independently controlled and protected, improving reliability while maintaining manageable structural complexity through standardized connection modules.
2Adaptability or versatility
If multiple light strings are purchased and connected through female sockets to combine various lamp styles, then the decorativeness is improved, but the cost is high and requires plenty of sockets to be mounted outdoors
Solution Approach 1:
The patent designs a universal connection interface that allows different lamp styles and configurations to be integrated into a single light string system. The standardized male-female connector enables multiple lamp types to be combined without requiring separate socket installations for each style.
Solution Approach 2:
The patent merges multiple lamp styles and power cable configurations into a single integrated light string structure. By combining different lamp types within one continuous power cable system, the patent eliminates the need for multiple separate light strings and extensive socket mounting.
3Adaptability or versatility
If several lamps are arranged in the middle of the power cable in a suspended manner, then the decorative effect is improved, but the hanging line has a large volume which is not attractive
Solution Approach 1:
The patent transitions from a single-dimensional hanging line configuration to a multi-dimensional spatial arrangement of lamps. By positioning lamps at different locations along the power cable and using branch cables to create three-dimensional configurations, the patent achieves attractive decorative effects without requiring large-volume hanging lines.
Data Source
AI summary
The present disclosure relates to the technical field of lamps and discloses a multistage parallel type loop-free decorative light string, which includes a main power cable and at least one branch power cable connected in parallel to the main power cable, wherein a connection between the main power cable and the branch power cable is externally sleeved with a light string connector; and the branch power cable is electrically connected with a plurality of second lamps. A lamp cover is provided with a wire hiding slot that can store a tail end of the branch power cable.