Electromagnetic Actuator Ground Contact Sealing

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing electromagnetic actuating apparatuses face challenges in mass production and ease of fitting due to complex ground contact and sealing issues.

Innovation Solution

A strip-shaped ground contact configuration with a slot in the insulator, allowing for simple production through stamping and easy plugging-in, along with the use of liquid sealing means or a sealing element to address sealing problems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a complex ground contact configuration is used, then sealing performance is improved, but manufacturing complexity and fitting difficulty increase

Engineering Contradiction:
Improvesealing performanceVSAvoidground contact configuration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The ground contact is divided into a modular assembly consisting of a separate sealing element and the ground contact itself. The sealing element can be independently manufactured and then integrated with the ground contact, allowing each component to be optimized separately for its specific function while simplifying the overall manufacturing process.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A sealing element acts as an intermediary component between the ground contact and the insulator housing. This sealing element provides the necessary sealing function without requiring the ground contact itself to be complex, thus decoupling the sealing requirement from the ground contact design complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a complex ground contact configuration is used, then sealing performance is improved, but ease of fitting deteriorates

Engineering Contradiction:
Improvesealing performanceVSAvoidease of fitting
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

By segmenting the sealing function into a separate element, the fitting process is simplified. The ground contact can be inserted into the insulator housing first, and then the sealing element is added, allowing for easier assembly and reducing fitting difficulty while maintaining reliable sealing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sealing element is designed to be pre-formed and ready for integration, eliminating the need for complex on-site sealing operations. This preliminary preparation of the sealing component significantly reduces the complexity and difficulty of the fitting process.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If traditional ground contact design is used, then electrical contact is established, but manufacturing simplicity deteriorates

Engineering Contradiction:
Improveelectrical contact reliabilityVSAvoidmanufacturing simplicity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The ground contact assembly is segmented into separate functional components that can be manufactured using simple stamping processes. This segmentation allows each part to be produced independently with basic manufacturing techniques, improving manufacturing simplicity while maintaining electrical contact reliability through proper assembly.

Inventive Principle:
Principle #1Segmentation

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

This solution simplifies manufacturing and fitting processes, enhancing the suitability of electromagnetic actuating apparatuses for mass production and ensuring effective sealing against moisture and dust ingress.

Implementation Method 1

The coil is energizable via the contacts to longitudinally/axially shift the armature

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS7768368B2Electromagnetic actuating apparatus
Publication Date: 2010.08.03 ETO MAGNETIC GMBH
  • US7768368B2 patent drawing
  • US7768368B2 patent drawing
  • US7768368B2 patent drawing

AI summary

The invention relates to an electromagnetic actuating apparatus with an armature unit, which is guided axially in a housing and is capable of being moved by means of energizing a coil apparatus, contact plug means, which are held in an insulator unit, being associated with the coil apparatus, and an elongated ground contact of the contact plug means being electrically conductively connected to the housing, and the ground contact interacting electrically conductively at an engagement end which is opposite its free end with a yoke section, which is associated with the housing preferably at the front end, in such a way that, in a fitted state, a cutout formed in the engagement end in the ground contact engages over a projection of the yoke section and/or at least partially surrounds it.