Induction Component Carrier Element Segmentation

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Solution Overview

Problem

Existing induction components face challenges in achieving reliable and automatic assembly due to loose wire ends that do not always lie in one plane, necessitating complex bending or additional connection methods.

Innovation Solution

An induction component design featuring a housing with a carrier element that includes connection contacts and connection configurations for the winding ends, allowing for reliable connection independent of the wire end shape, with options for manufacturing ease and secure attachment to a printed circuit board.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If loose wire ends are used for connection, then manufacturing is simpler, but the wire ends do not lie in one plane making SMD assembly difficult

Engineering Contradiction:
Improvecoil winding simplicityVSAvoidconnection contact planarity
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The connection system is divided into separate functional elements: the coil winding (which remains simple and loose) and the connection contacts (which provide the planar interface). The carrier element separates these functions, allowing the coil to be wound freely while the connection contacts are independently positioned on the carrier to ensure planarity for SMD assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The carrier element acts as an intermediary between the coil winding and the connection interface. It receives the loose wire ends from the coil and provides a structured platform with connection contacts that ensure planarity. This mediator allows the coil to maintain manufacturing simplicity while the carrier ensures connection precision.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If wire ends are bent around the housing base to achieve planarity, then connection contacts can be formed, but the device complexity increases

Engineering Contradiction:
Improveconnection contact planarityVSAvoidhousing structure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The housing structure is segmented by introducing a separate carrier element that handles the connection contact function. This separates the structural housing from the connection interface requirements, allowing the housing to remain simple while the carrier provides the necessary planarity for connection contacts.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The carrier element serves as an intermediary structure between the housing and the connection interface. Instead of modifying the housing itself to achieve planarity, the carrier is positioned within the housing to provide the planar connection surface, reducing the complexity of the housing structure while maintaining connection precision.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If additional connection elements are attached to achieve reliable connection, then connection reliability improves, but the ease of manufacture decreases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidassembly simplicity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

Multiple functions are merged into the carrier element: it provides mechanical support for the coil, holds the connection contacts, and ensures proper positioning for SMD assembly. By combining these functions into a single integrated component, the system achieves reliable connections without requiring multiple separate assembly steps or additional connection elements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The carrier element is designed as a multi-functional component that simultaneously serves as a support structure for the coil, a mounting platform for connection contacts, and a positioning element for ensuring planarity. This universal component achieves reliable connections while maintaining manufacturing simplicity through its integrated design.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 reliable and efficient automatic assembly by ensuring planarity of connection contacts, simplifying the connection process, and enhancing stability through centered and securely attached components.

Implementation Method 1

An induction component with a housing (1a, 1b), in particular made of ferrite material or pressed substrate powder, in which at least one coil (7) is arranged

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP2933804B1Induction component
Publication Date: 2018.11.28 WURTH ELEKTRONIK IBE
  • EP2933804B1 patent drawingFigure 1~3
  • EP2933804B1 patent drawingFigure 4~5
  • EP2933804B1 patent drawingFigure 6~11

AI summary

An induction coil component comprises a ferrite housing, a coil, and a coil support. The coil support acts as a holder for the coil. The coil is connected to the support, and the coil winding ends are welded to terminals on the support. The support, along with the coil, is then inserted into the housing, and the terminals on the support are used to connect the induction coil component to a printed circuit board.