Terminal-Supported Electric Component Structure for Stress Relief

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Solution Overview

Problem

Existing electric components face issues with stress concentration on terminals due to external forces, leading to potential disconnection when the operation shaft contacts obstacles.

Innovation Solution

The electric component design includes an operating portion, an electric processing portion with terminals protruding orthogonally, and fixing portions that interpose the terminals to support and stabilize the electric processing portion, reducing stress on the terminals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of stationary object

If the variable resistor is fixed to a housing at a bearing portion, then the rotation member durability is ensured, but stress is concentrated on the terminal when the operation shaft contacts an obstacle

Engineering Contradiction:
Improverotation member durabilityVSAvoidterminal stress
Core Design Contradiction:
Duration of action of stationary objectVSStress or pressure

Solution Approach 1:

The invention divides the support function into two separate locations: the bearing portion supports the rotation member, while the fixing portions support the terminal. This segmentation prevents stress concentration on the terminal by distributing the support function across multiple discrete locations, allowing the terminal to be fixed independently away from the bearing portion.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention introduces fixing portions as intermediary elements that specifically support the terminal. These fixing portions act as mediators between the terminal and the housing, providing dedicated support for the terminal without interfering with the bearing portion's support of the rotation member, thereby preventing stress transmission to the terminal.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of manufacture

If the terminal protrudes in a direction intersecting with the operating portion, then electrical connection is achieved, but the terminal is vulnerable to stress from external forces

Engineering Contradiction:
Improveterminal connectionVSAvoidterminal connection reliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The invention applies preliminary action by fixing the terminal to the housing through fixing portions before the operation shaft can contact obstacles. This pre-fixing ensures that the terminal is already supported and stabilized, preventing subsequent stress concentration or disconnection when external forces are applied during operation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention applies local quality by providing specialized fixing portions at specific locations where the terminal protrudes from the housing. Instead of uniformly supporting the entire structure, the fixing portions are locally positioned to provide targeted support exactly where the terminal connects, strengthening the connection reliability at the critical stress point without affecting other areas.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12567522B2Electric component
Publication Date: 2026.03.03 TOKYO COSMOS ELECTRIC CO LTD
  • US12567522B2 patent drawing
  • US12567522B2 patent drawing
  • US12567522B2 patent drawing

AI summary

Provided is an electric component which mitigates stress acting on a terminal. This electric component comprises: an operation part disposed so as to extend in a predetermined direction; an electrical processing part which has a terminal protruding in a direction crossing the extension direction of the operation part and outputs an electrical signal in response to an operation of the operation part; and a plurality of fixation parts which are disposed so as to sandwich the terminal in the extension direction and protrude in the protrusion direction of the terminal.