Fan Perimeter Shock Absorbing Ring Design

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Solution Overview

Problem

Fans are vulnerable to environmental hazards and mechanical shocks, leading to inefficiency and potential danger due to existing designs that fail to adequately protect the motor and blades.

Innovation Solution

An improved fan design featuring a mounting bracket connecting a lower fan assembly to an upper assembly, with a protective structure including a perimeter shock absorbing ring and impact absorbing mount, providing enhanced protection through flexible ribs and adjustable components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If fans are over designed to withstand mechanical shocks, then strength is improved, but device complexity increases

Engineering Contradiction:
ImprovestrengthVSAvoiddevice complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent applies beforehand cushioning by incorporating shock-absorbing elements such as rubber mounts and flexible connectors into the fan assembly before exposure to mechanical shocks. These elements are pre-installed to cushion impacts from drops or bumps, allowing the fan to withstand shocks without requiring excessive over-design of structural components, thereby reducing overall device complexity while maintaining strength.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Reliability

If protective structures are added to enclose fan components, then reliability is improved, but device complexity increases

Engineering Contradiction:
ImprovereliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies nesting by placing the fan motor and blades inside a protective cage structure, with additional shock-absorbing layers nested within the cage. This nested arrangement provides multiple levels of protection against mechanical shocks and environmental hazards while maintaining a compact overall design, improving reliability without proportionally increasing device complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Object-affected harmful factors

If shock absorbing structures are added, then protection against environmental hazards is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveprotection against environmental hazardsVSAvoidmanufacturing complexity
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent applies flexible shells and thin films by using rubber or elastomeric materials for shock-absorbing mounts and protective coatings on fan components. These flexible elements can be molded in simple shapes and attached using basic fastening methods, providing effective protection against drops and bumps while maintaining ease of manufacture through standardized, modular components.

Inventive Principle:
Principle #30Flexible shells and thin films

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 design effectively absorbs impacts and shocks, enhancing the mechanical reliability and safety of fans by distributing forces and protecting critical components, thus minimizing damage from environmental hazards.

Implementation Method 1

the inner absorption layer may preferably include one or more flexible ribs

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS11506223B2Fan design with an impact absorbing structure
Publication Date: 2022.11.22 VORNADO AIR LLC
  • US11506223B2 patent drawing
  • US11506223B2 patent drawing
  • US11506223B2 patent drawing

AI summary

An improved fan design with an impact absorbing structure is provided. The improved fan design includes a lower fan assembly connected to an upper fan assembly using a mounting bracket. The lower fan assembly may include a fan base having multiple supporting legs which are preferably rotatably connected to the lower fan assembly. The upper fan assembly of the present invention may include a fan motor and fan blades enclosed within a protective structure. The protective structure of the present invention may preferably include an outer fan cover, a fan grille, an external cage and a perimeter shock absorbing ring extending around the circumference of the outer fan cover. The perimeter shock absorbing ring may include an inner surface, an inner absorption layer and an outer surface. The inner absorption layer may preferably include one or more flexible ribs.