Ventilating Fan Frame With Movable Mounting Plate
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Solution Overview
Problem
Conventional ventilating fans require modification or destruction of original ceiling installation holes due to mismatched outer flanges or fixing plates, necessitating a solution for optimized installation without damaging existing structures.
Innovation Solution
A ventilating fan design featuring a frame structure with movable mounting plates that can be received within the main body during installation and exposed for fastening, allowing for flexible installation without separating the fan body and frame, utilizing sliding and rotating mechanisms, and elastic plates for precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If outer flanges or fixing plates are used to mount the ventilating fan to the ceiling, then the fan can be fixed to the ceiling, but the original installation holes on the ceiling cannot be matched and must be modified or destroyed
Solution Approach 1:
The mounting plate is designed to be movable relative to the fan frame, capable of rotating from a retracted position (where it does not interfere with original ceiling holes) to an extended position (where it provides additional mounting surface). This dynamic adjustment allows the system to adapt to different installation scenarios without damaging the ceiling structure.
Solution Approach 2:
The mounting plate can change its position parameter (retracted vs. extended) to match different installation requirements. When retracted, it allows use of original ceiling holes; when extended, it provides alternative mounting surfaces, thus adapting to various installation conditions without causing damage.
2Adaptability or versatility
If the mounting plate is fixed in the fan frame, then the structure is simple, but the installation flexibility and adaptability to different environments are reduced
Solution Approach 1:
The mounting plate incorporates a rotating mechanism that allows it to change position dynamically. This dynamic feature provides installation flexibility (can extend to match ceiling holes) while maintaining reasonable structural complexity through a straightforward rotational joint design.
Solution Approach 2:
The mounting plate is designed as a separate, movable component distinct from the main fan frame. This segmentation allows independent movement and adjustment of the mounting plate without affecting the overall fan structure, enhancing adaptability while keeping the added complexity localized to just the mounting mechanism.
3Adaptability or versatility
If the fan body and frame are separated for installation, then the mounting plate can be adjusted, but the installation steps increase and complexity increases
Solution Approach 1:
The mounting plate is integrated into the fan frame as a movable component rather than a separate part. This merging allows the mounting plate to be adjusted (rotated to extended position) while the fan body remains assembled with the frame, avoiding the need to disassemble the entire fan and thereby reducing installation time and steps.
4Reliability
If additional fastening elements are used for mounting, then the fan can be securely fixed, but the original installation holes must be modified or destroyed
Solution Approach 1:
The mounting plate can rotate to an extended position to provide additional mounting surfaces that align with original ceiling holes, allowing secure fixation using existing holes without modification. This dynamic positioning eliminates the need for destructive modifications while maintaining reliable mounting.
Data Source
AI summary
A ventilating fan includes a driving device, a rotating blade assembly, and a frame structure. The driving device drives the rotating blade assembly to rotate. The rotating blade assembly includes a hub and at least one blade group arranged on the periphery of the hub. The driving device and the rotating blade assembly are disposed in the frame structure. The frame structure includes a main body and a first mounting plate. The main body is formed by a plurality of side portions, and each side portion has at least one bending part for connecting to the adjacent side portion. At least one of the side portions has a first slot, which is disposed adjacent to the corresponding bend part. The first mounting plate is disposed corresponding to the first slot and located in the main body, and the first mounting plate has at least one fixing portion.