Terminal Block Sealed Conductors Vibration Stability

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Solution Overview

Problem

The existing terminal blocks face issues with maintaining stable connections between conductive components due to vibrations and shocks, leading to poor conductivity and corrosion risks, especially with the positive electrode terminal plate being exposed.

Innovation Solution

A terminal block design featuring a nonconductive main body with conductive main terminals and sealed connecting conductors, where the first connecting conductor is entirely sealed inside the main body, and the second connecting conductor is partially sealed, ensuring stable connections and preventing corrosion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the positive electrode terminal plate is exposed to connect to the terminal screw, then the connection can be established, but the connection becomes unstable under vibration and shock, leading to poor conductivity

Engineering Contradiction:

Improveconnection stabilityVSAvoidvibration and shock impact

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The terminal plate is nested within the terminal screw, with the terminal plate inserted into the terminal screw body. This nested configuration ensures that the terminal plate remains securely positioned within the terminal screw even under vibration and shock, preventing connection instability while maintaining electrical connectivity.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The terminal plate is pre-positioned and inserted into the terminal screw before final assembly. This preliminary positioning ensures proper alignment and secure connection establishment, preventing subsequent connection issues under vibrational or shock conditions.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the positive electrode terminal plate is exposed outside the resin main body, then connection access is provided, but corrosion risk increases leading to poor conductivity

Engineering Contradiction:

ImproveconductivityVSAvoidcorrosion

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The terminal plate is nested inside the terminal screw structure, which itself is integrated with or protected by the resin main body. This nested configuration shields the terminal plate from direct exposure to corrosive environments while maintaining electrical connection functionality.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The terminal screw acts as an intermediary structure between the terminal plate and the external environment. The terminal screw provides a protective interface that prevents direct exposure of the terminal plate to corrosive elements while maintaining electrical conductivity.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS10594058B2Terminal block and electronic appliance

Publication Date: 2020.03.17 TDK CORP

AI summary

A terminal block includes: a nonconductive main body that is attached to a structure; a main terminal that is conductive, passes through the main body, and is disposed on the main body so that both ends of the main terminal project from the main body; a capacitor that is sealed inside the main body; a first connecting conductor that connects one lead terminal of the capacitor and the main terminal; and a second connecting conductor that connects another lead terminal of the capacitor and a conductor of the structure. The first connecting conductor is entirely sealed inside the main body in a state where one end is connected to the main terminal and another end is connected to the one lead terminal of the capacitor.