Integrated Power Supply Connector Filtering

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Solution Overview

Problem

The existing power supply connectors for electric motors, particularly submersed motors, require complex and error-prone filter installations to prevent radio interference and overvoltages, leading to increased production times and potential malfunctions.

Innovation Solution

A power supply connector with an integrally inserted electrical filtering means, such as varistors or gas-filled diodes, within an insulating body that supports electrical contacts and wiring conductors, simplifying assembly and reducing errors by providing built-in protection against radio interference and overvoltages.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If filters are installed separately in the power supply circuit, then radio interference and overvoltages are protected against, but production time increases and installation errors may occur

Engineering Contradiction:
Improveprotection against radio interference and overvoltagesVSAvoidproduction time
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The filter components (varistors, gas-filled diodes, or other electronic components) are integrated directly into the insulating body of the connector, merging the filtering function with the connector structure. This eliminates the need for separate filter installation steps, reducing production time while maintaining protection against radio interference and overvoltages.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The filtering means are pre-installed and fixed within the insulating body during connector manufacturing, before the connector is used. This preliminary action ensures that the filtering function is already in place when the connector is assembled, eliminating on-site installation errors and reducing production time.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If filters are installed separately in the power supply circuit, then radio interference and overvoltages are protected against, but installation errors may occur

Engineering Contradiction:
Improveprotection against radio interference and overvoltagesVSAvoidinstallation accuracy
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The filter components are merged with the connector structure, eliminating separate installation steps that could introduce errors. The integrated design ensures proper positioning and connection of filtering elements without requiring additional manual wiring operations.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connector structure itself provides the mounting and positioning features for the filtering means, making the installation self-guiding and error-proof. The insulating body includes built-in structures that automatically ensure correct placement of the filtering components.

Inventive Principle:
Principle #25Self-service

3Reliability

If complex filter installation procedures are used, then protection against radio interference and overvoltages is achieved, but device complexity increases

Engineering Contradiction:
Improveprotection against radio interference and overvoltagesVSAvoidinstallation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The filtering function is combined with the connector structure, creating a single integrated component rather than separate filter and connector assemblies. This reduces the overall system complexity and simplifies the installation procedure to a single connector assembly operation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connector is designed to perform multiple functions: electrical connection, insulation, and filtering. This multi-functionality eliminates the need for separate filtering devices and their associated installation procedures, reducing overall device complexity while maintaining comprehensive protection.

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

This solution reduces production times, minimizes installation errors, ensures compliance with safety standards, and allows for cost-effective manufacturing while effectively addressing radio interference and overvoltages.

Implementation Method 1

The electrical filtering means 5, which is constituted by a plurality of varistors, a plurality of gas-filled diodes or other suitable electronic components which are interposed between the electrical contacts 3 and the wiring conductors 4

Methodology Applied
Scientific EffectFiltering (electronic): Filter (electronic)

Data Source

PatentUS8292665B2Power supply connector
Publication Date: 2012.10.23 EBARA CORP
  • US8292665B2 patent drawing
  • US8292665B2 patent drawing
  • US8292665B2 patent drawing

AI summary

A power supply connector (1), comprising an insulating body (2) which supports a plurality of electrical contacts (3) and a plurality of wiring conductors (4), and comprising an electrical filtering means (5), which is interposed between the electrical contacts and the wiring conductors and is integrally inserted in the insulating body.