Modular Ventilation Fan Assembly for In-Place Speaker Upgrades

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Solution Overview

Problem

Existing ventilation fans are difficult to upgrade or replace without removing the entire assembly, which requires extensive labor and can damage surrounding building structures, and they often lack integrated features beyond ventilation functionality.

Innovation Solution

A modular ventilation assembly with a main housing and a releasable fan assembly that can be inserted through an inlet opening, allowing for the addition or replacement of fan and accessory components without removing the main housing, including a fan assembly with a motor mount plate and an accessory mount system for easy installation and removal of accessories like speakers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the entire fan assembly is removed and replaced to upgrade or repair components, then damaged components can be replaced, but extensive labor is required and surrounding building structure may be damaged

Engineering Contradiction:
Improveease of component replacementVSAvoidlabor time required
Core Design Contradiction:
Ease of repairVSLoss of time

Solution Approach 1:

The fan assembly is divided into separable modules: the fan motor assembly and the housing assembly. The fan motor assembly can be removed and replaced independently through the inlet opening without removing the entire housing assembly, enabling component-level repair and upgrade while minimizing labor time and avoiding damage to surrounding building structure.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the entire fan assembly is removed and replaced to install additional functions, then accessory components can be added, but the mounting process becomes difficult and time consuming

Engineering Contradiction:
Improveability to add functionsVSAvoidease of installation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The housing assembly is segmented to allow independent access to the fan motor assembly through the inlet opening. This modular design enables installation of accessory components on the fan motor assembly without requiring removal of the entire housing assembly, making the system adaptable while maintaining ease of installation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fan motor assembly is designed to be inserted through and housed within the main housing assembly. This nested configuration allows the fan motor assembly to be installed, removed, or upgraded through the inlet opening without disturbing the outer housing, facilitating easy addition of functions while simplifying the installation process.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of repair

If the main housing is removed to access fasteners for fan assembly replacement, then the fan assembly can be replaced, but the surrounding structure must often be damaged

Engineering Contradiction:
Improveaccess to fastenersVSAvoiddamage to building structure
Core Design Contradiction:
Ease of repairVSObject-affected harmful factors

Solution Approach 1:

The fasteners securing the fan motor assembly are extracted and positioned on the fan motor assembly itself rather than on the housing assembly. This allows the fan motor assembly to be removed through the inlet opening by simply removing these accessible fasteners, eliminating the need to remove the main housing and avoid damage to surrounding building structure.

Inventive Principle:
Principle #2Taking out (Extraction)

4Adaptability or versatility

If accessory components are mounted to the fan assembly after installation, then accessories can be added, but the motor mount plate orientation may be difficult for installation

Engineering Contradiction:
Improveability to mount accessoriesVSAvoidease of accessory installation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The fan motor assembly is designed with rotational capability on its mounting fasteners, allowing the assembly to be rotated to different orientations after being installed in the housing. This dynamic adjustment enables accessory components to be mounted in optimal positions regardless of the initial installation orientation, facilitating ease of accessory installation while maintaining versatility.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10054127B2Speaker fan system and method
Publication Date: 2018.08.21 BROAN NUTONE LLC
  • US10054127B2 patent drawing
  • US10054127B2 patent drawing
  • US10054127B2 patent drawing

AI summary

A ventilation assembly having a main housing that can be pre-installed in a wall or ceiling aperture. A fan assembly can be inserted through the aperture and releasably mounted within the main housing. The fan assembly can be removed from the main housing and replaced without removing the main housing from the wall or ceiling. An accessory component can be releasably mounted to the fan assembly either through the aperture when the fan assembly is mounted or prior to installation of the fan assembly.