Contactor Magnetic Coupling Reduces Installation Depth

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Solution Overview

Problem

Existing contactors require significant space due to complex mechanical designs, making it difficult to maintain a standardized installation depth in control cabinets, and their manufacturing and handling are inefficient.

Innovation Solution

A compact contactor design with a main contact carrier and a pre-charging contact carrier that uses a magnetic coupling for space-saving switching, eliminating the need for complex geometric components and allowing for standardized installation depth, featuring a one-piece pre-charging contact carrier and a coupling extension that simplifies production and scalability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If complex mechanical designs are used in contactors, then switching reliability is improved, but installation depth and space requirements increase

Engineering Contradiction:

Improveswitching reliabilityVSAvoidinstallation depth

Core Design Contradiction:

ReliabilityVSLength of stationary object

Solution Approach 1:

The patent replaces complex mechanical coupling mechanisms with a magnetic coupling system. The magnetic coupling element magnetically couples the pre-charging contact carrier to the main contact carrier, eliminating the need for complex geometric mechanical components while maintaining reliable coordinated switching of contacts.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the coupling mechanism from mechanical to magnetic interaction, fundamentally altering the physical parameter of the coupling force. This allows for a more compact design with reduced installation depth while maintaining the reliability of contact coordination.

Inventive Principle:

Principle #35Parameter changes

2Manufacturing precision

If complex geometric components are used, then switching precision is improved, but manufacturing complexity and cost increase

Engineering Contradiction:

Improveswitching precisionVSAvoidmanufacturing complexity

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The magnetic coupling element replaces complex geometric mechanical components that required precise manufacturing tolerances. The magnetic coupling provides sufficient coupling force without requiring complex geometries or tight tolerances, simplifying manufacturing while maintaining switching precision.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The magnetic coupling element uses simple, easily manufacturable components rather than complex precision mechanical parts. This approach favors simpler, more cost-effective components that can be manufactured with standard tolerances.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Adaptability or versatility

If multi-part pre-charging contact carriers with coupling mechanisms are used, then contactor functionality is improved, but device complexity and space requirements increase

Engineering Contradiction:

Improvecontactor functionalityVSAvoidmechanical design complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The magnetic coupling element merges the coupling function into a simple magnetic interaction between two components, eliminating the need for separate mechanical coupling mechanisms. This reduces device complexity while maintaining the functionality of coordinating main and pre-charging contacts.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent substitutes mechanical coupling mechanisms with a magnetic coupling system, significantly reducing the mechanical design complexity. The magnetic coupling provides the necessary coordination between contact carriers without requiring complex mechanical linkages or multi-part assemblies.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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

The solution reduces the installation depth of contactors, simplifies manufacturing, and ensures precise operation while maintaining efficient actuation, allowing for a more space-saving and cost-effective design that can be adapted to various applications.

Implementation Method 1

The pre-charging contact carrier (50) can be releasably connected to a coupling extension (41) on the main contact carrier (40) by means of a magnet (54)

Methodology Applied

Scientific EffectMagnetic coupling: Magnetism

Data Source

PatentEP3002769B1Integrated circuit breaker

Publication Date: 2017.06.14 SIEMENS AG

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AI summary

The utility model relates to a contactor (10), including main fixed contact support (40) that can move and prestrain fixed contact support (50) that have main contacts unit (47), it utilizes inactive prestrain contact (30) flexibly to hold on explosion chamber component (55) with the aid of prestrain fixed contact support spring (38). This contactor still includes magnet (54), and prestrain fixed contact support (50) can be divided to turn up the soil via it and be connected with the coupling antithetical couplet protruding (41) that main fixed contact support (40) located. The utility model discloses still relate to a cubical switchboard, it is including having a plurality of switching device and at least one the cover tape busbar of contactor.