Blower Vibration Absorption Assembly for Respirator Noise Reduction

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Solution Overview

Problem

Existing blower devices in respirators suffer from high-frequency vibration during operation, leading to secondary damages such as reduced component lifespan, noise, and vibration, which are exacerbated by complex structures and rigid connections.

Innovation Solution

A blower device with a vibration absorption assembly comprising locating, connection, and support buffering members, which are strategically positioned to absorb and disperse high-frequency vibrations, thereby reducing noise transmission and simplifying the device structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If special protective treatments are added to minimize vibration damage, then vibration buffering capability is improved, but device structure becomes complicated

Engineering Contradiction:

Improvevibration buffering capabilityVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple buffering functions (locating, connection, and support) into a single integrated vibration absorption assembly. This assembly uses elastic buffering members that simultaneously perform locating, connecting, and supporting functions, thereby improving vibration buffering capability without complicating the device structure.

Inventive Principle:

Principle #5Merging (Combining)

2Stability of the object's composition

If rigid connections are used to connect the blower, then structural stability is improved, but high-frequency vibration and noise transmission increase

Engineering Contradiction:

Improvestructural stabilityVSAvoidvibration and noise transmission

Core Design Contradiction:

Stability of the object's compositionVSObject-generated harmful factors

Solution Approach 1:

The patent replaces rigid connections with flexible elastic buffering members. These members are made of elastic materials that can deform to absorb high-frequency vibrations while maintaining structural stability. The flexible nature of these buffering members effectively reduces vibration and noise transmission compared to rigid connections.

Inventive Principle:

Principle #30Flexible shells and thin films

3Reliability

If more buffering components are added to reduce vibration, then vibration absorption capability is improved, but the number of components increases

Engineering Contradiction:

Improvevibration absorption capabilityVSAvoidnumber of components

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent merges locating buffering members, connection buffering members, and support buffering members into a single integrated vibration absorption assembly. This multi-functional design provides comprehensive vibration absorption capability (locating, connecting, and supporting) while minimizing the number of separate components needed.

Inventive Principle:

Principle #5Merging (Combining)

4Reliability

If complex protective treatments are implemented, then vibration damage is reduced, but manufacturing complexity increases

Engineering Contradiction:

Improvevibration damage resistanceVSAvoidmanufacturing simplicity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent segments the vibration absorption function into distinct buffering members (locating, connection, and support) that can be independently manufactured and then assembled. This modular approach simplifies manufacturing compared to complex integrated protective treatments, as each buffering member can be produced using standard elastic material processing techniques and assembled into the final device.

Inventive Principle:

Principle #1Segmentation

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 proposed solution effectively buffers high-frequency vibrations, decreases noise transmission, and reduces secondary damage while maintaining a simple structure with fewer components, making assembly easier.

Implementation Method 1

a vibration absorption assembly for associating the blower vibration source and the case, wherein the vibration absorption assembly comprises at least two of a locating buffering member associated with a top portion of the blower vibration source, a connection buffering member in which at least a part of the blower vibration source is received and a support buffering member associated with a bottom portion of the blower vibration source

Methodology Applied

Scientific EffectVibration absorption: Damping

Implementation Method 2

An amplitude of high-frequency vibration of the blower vibration source during operation is buffered, and noise transmission out of the case due to the high-frequency vibration is decreased

Methodology Applied

Scientific EffectBuffering: Elasticity

Data Source

PatentUS20250129796A1Blower device and respirator including blower device

Publication Date: 2025.04.24 BMC MEDICAL CO LTD

AI summary

A blower device and a respirator including the blower device. The blower device comprises a case, a blower vibration source disposed within the case and a buffering assembly for associating the blower vibration source and the case, wherein the vibration absorption assembly comprises at least two of a locating buffering member associated with a top portion of the blower vibration source, a connection buffering member in which at least a part of the blower vibration source is received and a support buffering member associated with a bottom portion of the blower vibration source. The blower device is capable of effectively buffering vibration of the blower device, decreasing noise transmission and has a simple structure.