Light Board Structure With Conductive Column for Reliable Bulb Assembly

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Solution Overview

Problem

The structural design of traditional LED light bulbs leads to inconsistent connections between the circuit board and the bulb cap shell, affecting production yield and reliability, as well as installation efficiency and consistency.

Innovation Solution

A light board structure with a conductive column fixed to the circuit board and a separate conductive layer, integrated with a bulb cap assembly using a gasket and conductive ring for reliable and efficient connection, ensuring the conductive column and layer are securely attached to the power supply.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If connecting wires or metal pins are used to connect the circuit board to the bulb cap shell, then the light bulb can be assembled, but the connection reliability and position consistency are affected due to freedom of movement of the connecting components

Engineering Contradiction:
Improveconnection reliabilityVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the connecting wire function into the circuit board by printing conductive patterns directly on the board. The circuit board integrates both the electrical connection function and the structural support function, eliminating separate connecting components. This reduces the number of parts and improves connection reliability by removing freedom of movement between separate components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent replaces mechanical connections (wires, pins, sockets) with printed conductive patterns on the circuit board. The electrical connections are achieved through conductive ink patterns printed directly on the board surface, eliminating mechanical fastening components and their associated positioning issues.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If connecting wires or metal pins are used with freedom of movement, then the circuit board can be connected to power supply, but the assembly efficiency and production yield are reduced due to inconsistent connection status

Engineering Contradiction:
Improveassembly efficiencyVSAvoidconnection position consistency
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The circuit board integrates the electrical connection function directly into its structure through printed conductive patterns. This eliminates the need for separate connecting components and their assembly steps, improving assembly efficiency and ensuring consistent connection positions across all products.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent changes the state of electrical connections from mechanical components with variable positions to printed conductive patterns with fixed positions. The conductive patterns are precisely positioned during the printing process, ensuring consistent connection geometry and improving manufacturing precision.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If the circuit board uses separate connecting wires for neutral and live wires, then the electrical connection can be established, but the structural consistency and installation efficiency are affected

Engineering Contradiction:
Improveinstallation efficiencyVSAvoidstructural consistency
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The circuit board integrates both neutral and live wire connections into a single structural component. The conductive patterns for both electrical connections are printed on the same board, eliminating the need for separate wire management and improving installation efficiency while ensuring structural consistency.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12480627B2Light board structure and bulb cap and light bulb using the same
Publication Date: 2025.11.25 ZHANGZHOU GO WIN LIGHTING CO LTD
  • US12480627B2 patent drawing
  • US12480627B2 patent drawing
  • US12480627B2 patent drawing

AI summary

The disclosure provides a light board structure and a bulb cap and light bulb using the same. The conductive column of the light bulb is directly fixed on the middle of the circuit board of the light board structure, so that when assembling the bulb cap of the light bulb, the conductive column and the light board structure can be assembled by one process (or in the same stage), which improves the efficiency of light bulb assembling. In this application, the light board structure is connected to the power supply by the conductive column and the conductive layer, compared with the traditional form in which conductive wires are used, the light board structure of the present disclosure has a higher integration degree, and the structural optimization of the circuit board makes the installation operation simpler and more efficient.