Embedded ventilation fan
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Solution Overview
Problem
Existing embedded ventilation fans face difficulties in accurately aligning decorative panels due to reliance on springs for attachment, leading to potential misalignment and obstructed light transmission for display units.
Innovation Solution
Incorporating a first and second fitting portion on the decorative panel and inner lid, respectively, allowing for precise alignment and attachment of the decorative panel to the inner lid, ensuring the light emitting portion is positioned directly above the light transmission portion, enhancing alignment accuracy and visibility of the display unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a spring is used to attach the decorative panel to the housing, then the attachment is simple, but the alignment accuracy deteriorates
Solution Approach 1:
The patent introduces an inner lid as an intermediary component between the housing and decorative panel. The inner lid includes a display unit with light emitting portion and a fitted portion that interfaces with the fitting portion on the decorative panel. This intermediary structure enables precise alignment of the light emitting portion with the light transmission portion while maintaining simple spring-based attachment, thereby resolving the contradiction between attachment simplicity and alignment accuracy.
2Device complexity
If the decorative panel is attached using only springs, then the attachment method is simple, but the light transmission alignment deteriorates
Solution Approach 1:
The patent segments the attachment system into multiple functional components: springs for attachment, inner lid for alignment, fitted portion for positioning, and light transmission portion for optical function. This segmentation allows each component to perform its specific function optimally - springs provide simple attachment while the inner lid and fitted portions ensure precise light transmission alignment, resolving the contradiction between device complexity and illumination intensity.
Data Source
AI summary
Embedded ventilation fan includes housing, decorative panel, inner lid, and air supply blower. Decorative panel includes front surface, rear surface, air supply slit opening, remaining region, and light transmission portion. Inner lid is provided between housing and decorative panel. Inner lid includes display unit including light emitting portion and first fitted portion. Rear surface includes first fitting portion. Light transmission portion transmits light emitted from light emitting portion, and light transmission portion is disposed directly above light emitting portion by fitting first fitting portion and first fitted portion to each other.