Fan Guard Fastening Strut Cube Bonding Stability
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Solution Overview
Problem
Existing fastening struts for fan guards face challenges in withstanding heavy loads from bending and rotational moments, leading to potential breakage due to inadequate stability at connection points with fans or fan motors.
Innovation Solution
A fastening strut with a cube-shaped or cuboidal fastening element secured laterally to its free end by integral bonding, providing enhanced stability and reducing load on the leg, which can be designed as a massive metal cube or cuboid for improved abutment and connection with screws or motor parts, eliminating costly assembly work.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fastening struts are used to attach fan guards to fans or fan motors, then the connection points must withstand heavy loads from bending and rotational moments, but this leads to potential breakage due to inadequate stability at connection points
Solution Approach 1:
The fastening strut is divided into two functional segments: a slender leg portion that spans the cage bars and a separate massive fastening element at the free end. This segmentation allows the leg to remain lightweight while the fastening element provides the necessary stability and load-bearing capacity at the connection point, resolving the contradiction between stability and breakage resistance.
Solution Approach 2:
The fastening element is designed with locally optimized properties - a massive cubic or cuboidal shape with planar bearing surfaces specifically at the connection point. This local quality enhancement concentrates stability and strength where needed (at the fastening point) without requiring the entire strut to be overly robust, thus preventing breakage while maintaining connection stability.
2Reliability
If costly assembly work such as fastening sleeves is used to enhance stability at connection points, then reliability improves, but manufacturing cost and complexity increase
Solution Approach 1:
The fastening element integrates multiple functions into a single component: it serves as both the connection interface and the stability-providing structure. By merging the fastening function and stabilization function into one element that can be integrally bonded to the leg, the design eliminates the need for separate fastening sleeves or complex assembly steps, reducing manufacturing cost and complexity while maintaining high reliability.
Solution Approach 2:
The massive fastening element with its planar bearing surfaces inherently provides the necessary stability and load distribution without requiring additional fastening components or complex assembly procedures. The element serves its own stabilization function, eliminating the need for costly external fastening sleeves or complicated assembly work.
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 solution ensures a stable and cost-effective attachment of fan guards to fans and motors, enhancing the absorption of moments and extending service life by distributing loads more effectively and simplifying the assembly process.
Implementation Method 1
The integrally bonded connection by welding for example can be produced extremely cheaply
Data Source
AI summary
The present disclosure concerns a fastening strut for a fan guard with at least one first leg extending in a longitudinal direction, configured so as to reach across several cage bars of the fan guard, wherein the at least one first leg comprises a free lengthwise end, and in the region of the free lengthwise end of the at least one first leg a cube-shaped or cuboidal fastening element is secured laterally to the at least one first leg by integral bonding in a transverse direction running perpendicular to the longitudinal direction.