Ventilator Display Housing for Cleanable Secure Mounting

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Solution Overview

Problem

Ventilators require efficient cleaning of displays to prevent dirt and liquid accumulation on irregular surfaces, which is challenging due to their frequent handling by multiple users.

Innovation Solution

A ventilator design featuring a shell-like display housing with internal screw connections and reinforcing ribs, allowing for easy cleaning while preventing dirt and liquid accumulation, and a display unit that can be adjusted and fixed securely using screw elements accessible through hidden openings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the display has a smooth, rounded outer surface for easy cleaning, then cleaning efficiency is improved, but the structural complexity increases to prevent dirt and liquid accumulation

Engineering Contradiction:
Improvecleaning efficiencyVSAvoidstructural complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The display housing features a continuously curved outer surface without sharp edges, steps, or irregularities. This rounded geometry prevents dirt and liquid from accumulating in crevices, enabling efficient cleaning while maintaining structural integrity through the curved design itself rather than adding complex components.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The display unit is designed as a separable module that can be easily removed from the housing. This segmentation allows the display to be detached for thorough cleaning without disassembling the entire device, simplifying the cleaning process while maintaining a structurally sound integrated design during normal operation.

Inventive Principle:
Principle #1Segmentation

2Reliability

If the display housing has internal screw connections for secure mounting, then reliability is improved, but accessibility for assembly and disassembly deteriorates

Engineering Contradiction:
Improvemounting reliabilityVSAvoidassembly accessibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The screw connections are nested within the housing structure, with screw heads positioned in recesses or cavities of the housing. This nesting provides secure mounting reliability by protecting the screw heads while allowing access through strategically placed openings in the housing surface for assembly and disassembly operations.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The housing structure itself acts as an intermediary, providing recesses that accommodate screw heads and guide assembly tools. This intermediary structure enables reliable internal screw connections while maintaining external accessibility through the housing's designed openings and contours.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Strength

If the display housing is made robust with reinforcing structure, then strength is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvehousing strengthVSAvoidmanufacturing simplicity
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The reinforcing structure utilizes continuously curved surfaces and rounded transitions throughout the housing. These curved geometric features inherently provide structural strength and stress distribution while being manufacturable as single-piece molded or formed components, avoiding the need for complex multi-part assemblies or additional reinforcement elements.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Data Source

PatentUS20250338406A1Ventilator with display
Publication Date: 2025.10.30 LOWENSTEIN MEDICAL TECH SA
  • US20250338406A1 patent drawing
  • US20250338406A1 patent drawing
  • US20250338406A1 patent drawing

AI summary

A ventilator comprises a main housing, a display unit having a display and a display rear wall, a display housing which is formed shell-like having a shell opening for inserting the display unit; and a display holder, which mechanically couples the display housing with the main housing. The display housing has a reinforcing structure connected to an inner wall of the display housing in its interior. The reinforcing structure comprises multiple screw connections arranged in a particular way.