Blower Housing Bearing Support for Simple Assembly and Airflow
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Solution Overview
Problem
Existing fan housing assemblies are costly to assemble and disassemble, and they often lack sufficient support for the blower motor, with smaller parts requiring increased wall thickness that obstructs airflow.
Innovation Solution
A fan housing part with an inlet opening and a bearing mount for the blower motor, featuring star-shaped webs and a bush-shaped elastomer element for vibration decoupling, along with axial ribs for tolerance compensation and a protective grille, allowing for symmetrical force distribution and reduced wall thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fan housing parts are assembled from multiple parts of different sizes, then the housing can be configured to fit different blower motors, but the assembly and disassembly becomes expensive and complex
Solution Approach 1:
The fan housing is divided into a housing main body and a side part that can be easily attached and detached. This segmentation allows the housing to be configured for different blower motors while keeping the assembly and disassembly process simple and cost-effective.
2Strength
If wall thickness is increased in smaller fan housing parts, then mechanical strength is sufficient, but airflow obstruction increases
Solution Approach 1:
The bearing mount is designed to extend in the axial direction beyond the front surface of the housing main body, utilizing the available space in the axial dimension. This allows the bearing mount to provide sufficient mechanical strength and support for the blower motor without increasing the radial wall thickness that would obstruct airflow.
3Reliability
If a bearing mount is provided for blower motor mounting, then adequate motor support is achieved, but the housing structure becomes more complex
Solution Approach 1:
The bearing mount is integrally formed with the housing main body as a single piece structure. This merging of the bearing mount into the housing main body provides adequate motor support while avoiding the complexity of separate components and assembly steps.
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
Enables quick and simple assembly of the fan housing while providing adequate motor support and minimizing airflow obstruction by distributing forces symmetrically and reducing wall thickness.
Implementation Method 1
a bush-shaped elastomer element is arranged in the bearing bush. The bush-shaped elastomeric element is designed to accommodate the motor shaft bearing of the blower motor and is used for vibration decoupling from the adjacent components.
Data Source
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AI summary
The invention relates to a blower housing part (1) with an inlet opening (2) for drawing in blower air and a bearing receptacle held in the inlet opening for supporting a blower motor, wherein the bearing receptacle has a bearing bushing (4) open to one side of the motor, which is configured to receive at least one motor shaft bearing (19) of the blower motor. The invention further relates to a blower with a blower housing formed from two interconnected blower housing parts.