Light String Socket Bypass Mechanism for Series Circuit Continuity

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Solution Overview

Problem

Conventional light strings designed in series become inoperable when a single light bulb is removed or burns out, as this creates an open circuit, and existing solutions are either complex, expensive, or impractical to implement.

Innovation Solution

A lamp system with a socket assembly and bypass mechanism that moves between two positions, allowing current to flow through the remaining lights by disengaging the conductive biasing element from socket terminals when a light assembly is inserted and re-engaging when it is removed, ensuring the series-connected lights remain lit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional series-connected light strings are used, then the structure is simple and cost-effective, but the entire string becomes inoperable when a single light bulb is removed or burns out

Engineering Contradiction:
Improveoperational continuityVSAvoidcircuit configuration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The circuit is segmented into two parallel paths: a primary path through the light bulb and a secondary bypass path through the bypass mechanism. This segmentation allows current to flow through alternative segments when the primary path is interrupted, maintaining operational continuity without requiring complete circuit redesign.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bypass mechanism acts as an intermediary element that mediates between the socket terminals when the light bulb is absent or non-functional. This intermediary provides an alternative current path, enabling the circuit to maintain connectivity without directly modifying the series-connected structure of the light string.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a bypass mechanism is added to maintain circuit continuity, then reliability improves, but device complexity increases

Engineering Contradiction:
Improvecircuit continuityVSAvoidsocket assembly structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The bypass mechanism employs a movable conductive element that dynamically changes its position based on the presence or absence of a light bulb. When no bulb is present, the conductive element bridges the socket terminals to maintain continuity; when a bulb is installed, the element is displaced to allow current flow through the bulb. This dynamic behavior enables automatic circuit adaptation without complex control systems.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The electrical resistance parameter of the socket assembly changes based on the presence of a light bulb. When a bulb is absent, the bypass mechanism creates a low-resistance path between terminals. When a bulb is present, the bypass path resistance increases, directing current through the bulb. This parameter change enables automatic circuit reconfiguration without additional complexity.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If complex spring mechanisms are used to shunt electricity, then circuit continuity is maintained, but manufacturing cost and complexity increase significantly

Engineering Contradiction:
Improveelectricity flow maintenanceVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The invention extracts the essential bypass function from complex multi-spring mechanisms and implements it through a simplified single movable conductive element. This extracted approach maintains the core functionality of shunting electricity while eliminating unnecessary mechanical complexity, reducing manufacturing steps, and lowering production costs.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The bypass mechanism uses simple, inexpensive conductive elements that can be easily manufactured and replaced. Rather than using durable, complex spring mechanisms, the invention employs simpler components that achieve the same functional result at lower cost, making the overall socket assembly more economical to manufacture.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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

Enables the remaining lights in a series-connected string to remain illuminated even if one light source is missing or burned out, with a simple and economical design that avoids the complexities and costs of previous solutions.

Implementation Method 1

the bypass mechanism comprising a conductive biasing element for contacting the socket terminals

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2163818B1Light string system
Publication Date: 2012.11.21 POLYGROUP MACAU BVI
  • EP2163818B1 patent drawingFigure 1~2
  • EP2163818B1 patent drawingFigure 3~4
  • EP2163818B1 patent drawingFigure 5A~5B

AI summary

The present invention is a lamp system (100) for use in a light string system comprising a light assembly (200) and a socket assembly (300). The light assembly (200) comprises a light source (210), a base (220) in communication with the light source (210), and a bypass activating system (230). The socket assembly (300) comprises a socket (310) adapted to receive the light assembly (200) and a bypass mechanism (340) having a first position and a second position. The bypass activating system (230) is adapted to move the bypass mechanism (340) between the first and second positions.