Blower Housing Bearing Support for Low-Obstruction Motor Mounting
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Solution Overview
Problem
Existing fan housings with multiple parts face challenges in assembly and disassembly, inadequate motor mounting, and mechanical strength, leading to airflow obstruction due to increased wall thickness in smaller parts.
Innovation Solution
A blower housing design featuring two interconnected parts with a bearing mount and bushing system, including conically tapering ribs and a bush-shaped elastomer element for easy assembly and vibration decoupling, along with symmetrical force distribution and snap-in fasteners for reduced wall thickness and improved airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If fan housing parts are made smaller to reduce obstruction, then airflow obstruction is reduced, but mechanical strength decreases
Solution Approach 1:
The fan housing is divided into multiple modular parts that can be assembled together. This segmentation allows the housing to maintain adequate wall thickness for mechanical strength while the overall design minimizes airflow obstruction through optimized part geometry and arrangement.
Solution Approach 2:
The housing parts utilize composite construction with reinforced structures that provide high mechanical strength-to-weight ratio, enabling thinner walls that reduce airflow obstruction while maintaining structural integrity.
2Adaptability or versatility
If multiple fan housing parts are used to form the housing, then adaptability and assembly flexibility improve, but assembly and disassembly cost increases
Solution Approach 1:
The housing is segmented into standardized modular parts with uniform connection interfaces. This standardization enables quick assembly and disassembly operations, reducing labor costs despite the multi-part construction.
Solution Approach 2:
Multiple housing parts are combined with integrated fastening systems that merge the assembly process into simple snap-fit or tool-free connections, eliminating complex assembly procedures and reducing overall assembly cost.
3Strength
If wall thickness is increased to ensure mechanical strength in smaller parts, then structural integrity improves, but airflow obstruction increases
Solution Approach 1:
The housing parts feature locally optimized wall thickness distribution, with thicker walls only where structurally necessary and thinner walls in airflow paths, achieving both structural integrity and minimal airflow obstruction.
Solution Approach 2:
The housing parts utilize curved and aerodynamic surface designs that strengthen the structure through geometric reinforcement while maintaining smooth airflow paths, reducing turbulence and obstruction without increasing wall thickness.
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 simple and quick assembly, adequate motor mounting, and reduced airflow obstruction by distributing forces symmetrically and minimizing wall thickness, while maintaining mechanical strength and facilitating cable management.
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 with blower housing parts (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 motor side, which is designed to accommodate at least one motor shaft bearing (19) of the blower motor.