Movable Coil Terminal Block for Easier Assembly Alignment

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Solution Overview

Problem

The existing coil devices require precise alignment of terminal fittings with connection targets, such as circuit boards or connectors, which increases manufacturing complexity and cost due to the need for accurate positioning and alignment.

Innovation Solution

A coil device design where the terminal block is movable in multiple axes relative to the bobbin, allowing for easy positioning and connection of the terminal with a connection target by relative movement, eliminating the need for precise alignment during manufacturing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the terminal block is fixed to the bobbin with precise alignment, then the connection precision is improved, but the manufacturing complexity and cost increase

Engineering Contradiction:
Improvealignment precisionVSAvoidmanufacturing complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The terminal block is designed to be movable relative to the bobbin in multiple directions (X, Y, Z axes) through a guide structure with grooves and protrusions. This dynamic design allows the terminal block to adjust its position automatically during assembly, eliminating the need for precise pre-alignment in the manufacturing process while maintaining accurate connection capability.

Inventive Principle:
Principle #15Dynamics

2Manufacturing precision

If the terminal block is fixed to the bobbin with precise alignment, then the connection precision is improved, but the manufacturing cost increases

Engineering Contradiction:
Improvealignment precisionVSAvoidmanufacturing cost
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The movable terminal block design with guide grooves and protrusions enables automatic positioning during assembly, reducing or eliminating the need for expensive precision alignment equipment and processes. This dynamic adjustment capability simplifies manufacturing operations and reduces associated costs.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the terminal is movable in multiple axes, then the ease of positioning is improved, but the device complexity increases

Engineering Contradiction:
Improvepositioning easeVSAvoidstructural complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The terminal block is designed with movable capability in multiple axes through a guide structure consisting of grooves and protrusions that allow controlled movement. This dynamic structure enables easy positioning while maintaining manageable complexity through straightforward mechanical guidance.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The positioning function is segmented into independent directional movements along X, Y, and Z axes, each controlled by specific guide grooves and protrusions. This segmentation allows simple, controlled movement in each direction without requiring complex multi-axis mechanisms simultaneously.

Inventive Principle:
Principle #1Segmentation

4Productivity

If the terminal block is movable relative to the bobbin, then the assembly efficiency is improved, but the structural complexity increases

Engineering Contradiction:
Improveassembly efficiencyVSAvoidstructural complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The terminal block's movable design allows for quick positioning and adjustment during assembly operations, significantly improving assembly efficiency. The guide grooves and protrusions provide straightforward mechanical guidance that maintains structural simplicity while enabling dynamic adjustment capabilities.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12002616B2Coil device
Publication Date: 2024.06.04 TDK CORP
  • US12002616B2 patent drawing
  • US12002616B2 patent drawing
  • US12002616B2 patent drawing

AI summary

A coil device includes a bobbin, a terminal, and a terminal block. The bobbin includes a winding portion for winding a wire around an outer circumference of the winding portion. The terminal is connectable with an end of the wire. The terminal block holds the terminal. The terminal is movable both in a first axis and a second axis of the bobbin.