Microphone Elastic Member Reduces Backlash Noise

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Solution Overview

Problem

The existing microphone designs suffer from backlash relative to the microphone stand, leading to noise generation due to vibration transmission and unstable electrical connections, which can cause malfunction and damage to semiconductors and LEDs.

Innovation Solution

Incorporating an elastic member, such as a circular O-ring, into the connector-supporting hole of the microphone stand to securely fix the microphone unit, reducing backlash and ensuring stable electrical connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the diameter of the connector-supporting hole is larger than the outer diameter of the base end portion of the connector case, then the microphone is easily mounted to and dismounted from the microphone stand, but a gap is formed between the outer circumferential surface at the base end portion of the connector case and the inner circumferential surface of the housing, generating backlash

Engineering Contradiction:

Improveease of mounting and dismountingVSAvoidbacklash of microphone

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

An elastic member is introduced as an intermediary element between the connector case and the housing. This elastic member fills the gap created by the size difference, providing both the ease of mounting/dismounting and the stability to prevent backlash. The elastic member acts as a mediator that reconciles the conflicting requirements of easy operation and positional stability.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The solution changes the physical state of the filling material by using an elastic member that can deform. This elastic property allows the member to be compressed during mounting and then maintain constant pressure to eliminate backlash, dynamically adapting to the gap while maintaining stable electrical connection.

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If a gap is formed between the connector case and the housing, then the microphone can be easily mounted, but the gap generates unstable electrical connection of the ground line, causing noise and potential damage to semiconductors and LEDs

Engineering Contradiction:

Improveease of mountingVSAvoidelectrical connection stability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The elastic member serves as an intermediary that ensures stable electrical connection between the connector case and the housing. By filling and eliminating the gap, it provides a reliable ground line connection that prevents noise and protects electronic components while still allowing easy mounting operation.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The elastic member provides beforehand cushioning by pre-filling the gap between the connector case and housing. This preventive measure ensures that unstable electrical connection and potential damage to components are avoided before they can occur during operation.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Ease of operation

If the gap between connector case and housing is larger, then mounting is easier, but vibration of the desk is transmitted to the microphone unit, generating noise signals

Engineering Contradiction:

Improveease of mountingVSAvoidvibration transmission

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The elastic member acts as a vibration-isolating intermediary between the housing and the connector case. It absorbs and dampens vibrations from the desk before they can be transmitted to the microphone unit, thereby reducing noise signals while maintaining easy mounting capability.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The elastic member changes the mechanical impedance between the housing and connector case. By introducing this elastic element, the transmission of vibration energy is reduced through the gap, converting rigid vibration transmission into damped vibration isolation.

Inventive Principle:

Principle #35Parameter changes

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 elastic member effectively restrains backlash, stabilizes the microphone's position, and maintains a stable ground line, reducing noise and preventing damage to electronic components.

Implementation Method 1

an elastic member configured to be disposed in the connector-supporting hole while a portion of the case is inserted in the connector-supporting hole

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

reducing noise and preventing damage to electronic components

Methodology Applied

Scientific EffectVibration damping: Damping

Data Source

PatentUS10321214B2Microphone

Publication Date: 2019.06.11 AUDIO TECHNICA CORP

AI summary

A microphone is provided that restrains backlash relative to the microphone stand with a simple structure. A microphone is inserted in a connector-supporting hole of a microphone stand, and includes a microphone unit, an output connector configured to output sound signals from the microphone unit, a case accommodating the output connector, and an elastic member configured to be disposed in the connector-supporting hole while a portion of the case is inserted in the connector-supporting hole.