Noise Reduction Structure for Power Source Mounting

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Solution Overview

Problem

Existing noise reduction structures for power sources fail to effectively absorb vibrations due to deformation of buffer members under uneven tightening forces, leading to increased noise and instability in mounting.

Innovation Solution

A noise reduction structure comprising a buffer member with transverse extensions and a support portion made of rigid materials, along with a connecting member that engages with the buffer member to prevent deformation and ensure even distribution of forces, allowing the fixing rod to separate from the fixing plate, thereby reducing noise and improving mounting stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If buffer members are mounted between the power source and fixing plate to reduce vibration noise, then noise reduction is improved, but the buffer members are pressed and deformed by tight nut threading, adversely affecting vibration absorbing effect

Engineering Contradiction:
Improvevibration noiseVSAvoidvibration absorbing effect
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent introduces a connecting member as an intermediary between the fixing rod and the buffer member. This connecting member includes a pressing portion that contacts the buffer member and a fixing portion that engages with the fixing rod, thereby mediating the force transmission and preventing direct pressing of the buffer member by the nut, thus preserving its vibration absorbing effect

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The connecting member is divided into distinct functional portions: a pressing portion for contacting the buffer member, a fixing portion for engaging with the fixing rod, and a protrusion for structural support. This segmentation allows each portion to perform its specific function independently, ensuring the buffer member is protected while maintaining connection stability

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If buffer members are mounted at multiple locations to firmly connect power source to fixing plate, then mounting stability is improved, but non-uniform tightening forces cause non-uniform deformation of buffer members, increasing noise

Engineering Contradiction:
Improvemounting stabilityVSAvoidnoise
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The connecting member acts as an intermediary that distributes and equalizes the tightening forces across multiple buffer members. By engaging with the fixing rod through a standardized interface, it ensures uniform force application to each buffer member, preventing non-uniform deformation and maintaining low noise levels

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent employs identical connecting members at multiple mounting locations, ensuring homogeneous force distribution. Each connecting member interacts with its corresponding buffer member in the same manner, guaranteeing uniform compression and consistent vibration absorption across all mounting points, thereby preventing noise increase

Inventive Principle:
Principle #33Homogeneity

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 structure effectively reduces noise by preventing buffer member deformation and ensuring uniform force distribution, enhancing the vibration absorption capability and stability during mounting.

Implementation Method 1

mount a buffer member, such as the buffer members 5, 5′ between the power source 2 and the fixing plate 3 so as to reduce the noise due to the vibration generated by the power source 2

Methodology Applied
Scientific EffectVibration absorption: Damping

Implementation Method 2

since the buffer members 5, 5′ are elastic, if the nut is threaded too tightly by an operator, the buffer members 5, 5′ will be pressed and deformed

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS9303718B2Noise reduction structure
Publication Date: 2016.04.05 PANASONIC ECOLOGY SYSTEMS GUANGDONG CO LTD
  • US9303718B2 patent drawing
  • US9303718B2 patent drawing
  • US9303718B2 patent drawing

AI summary

A noise reduction structure between a power source and a fixing plate includes: a buffer member having a first opening through upper and lower faces of a body, upper lower portions of the buffer member respectively extending transversely to form upper and lower portion extensions with a gap therebetween; a rigid support portion includes an upper plate block having a second opening, a lower plate block having a third opening, and a stop block connecting the upper plate block and the lower plate block, the buffer member being embedded and engaged between the upper and lower plate blocks; a connecting member having a free end provided with an engagement portion engaged within the gap and a fixing end connected onto the fixing plate; and a fixing rod running through the power source, connecting and fixing the support portion and the power source, being separated from the fixing plate.