Drip Tray Cover Dipstick for Visible Liquid Level Checks
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Solution Overview
Problem
Existing drip trays in drinks machines lack effective visual indicators for liquid level, making it difficult for users to determine when the tray is full, leading to potential overfilling and cleaning challenges, and existing solutions either require additional fragile parts or detract from the aesthetic appearance.
Innovation Solution
A drip tray cover with integrated projections that function as dipsticks, allowing users to visually inspect the liquid level through openings, eliminating the need for extra parts and ensuring easy cleaning and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a floater is incorporated in the drip tray to indicate liquid level, then the user can see when the liquid reaches a set level, but this requires an extra fragile part that makes cleaning difficult and may be misplaced
Solution Approach 1:
The dipstick is integrated directly into the drip tray cover as a built-in feature, merging the liquid level indication function with the existing structural component. This eliminates the need for separate float indicators while providing continuous visual feedback through the opening in the cover, resolving the contradiction by reducing part count while maintaining measurement capability
Solution Approach 2:
The liquid level indication function is extracted from the liquid interior and placed into the air space above the liquid through the opening in the cover. The dipstick extends into the liquid but is viewed from above through the opening, separating the sensing function (dipstick in liquid) from the display function (visual indication through opening)
2Measurement precision
If a large tube is used to extend down to the drip tray base for liquid level inspection, then capillary effects are avoided, but this detracts from the aesthetic appearance of the drip tray
Solution Approach 1:
Instead of using a vertical tube that extends down to the base, the dipstick approach provides liquid level indication through a different dimensional arrangement - a horizontal or angled projection visible through an opening in the cover. This allows liquid level measurement without requiring a large vertical tube, maintaining aesthetic appearance while achieving measurement precision
Solution Approach 2:
The opening in the drip tray cover acts as an intermediary that allows visual access to the dipstick and liquid level without requiring a large tube structure. The opening provides the necessary line of sight while maintaining the integrity and appearance of the drip tray cover
3Shape
If the drip tray cover is made opaque for aesthetic purposes, then appearance is improved, but the user cannot visually inspect the liquid level
Solution Approach 1:
The drip tray cover is made opaque for aesthetic purposes, but a specific local area (the opening) is made transparent or is left open to allow visual inspection of the liquid level through the dipstick. This resolves the contradiction by maintaining overall aesthetic appearance while providing localized transparency for information access
Solution Approach 2:
The dipstick may incorporate visual indicators such as color changes or contrasting markings that are visible through the opening in the cover, allowing liquid level detection even when the cover material is semi-transparent or has aesthetic coatings
Data Source
AI summary
A drip tray cover for a beverage machine has a projection for facing a downward direction in use having a tip which is adapted to reach below a maximum liquid level of a drip tray base beneath. At least one opening makes the projection visible to a user and it functions as dipstick for inspecting the liquid level in the drip tray.