Handheld Fluid Tank Light Guide for Clear Fill-Level Reading
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Solution Overview
Problem
Existing handheld work apparatuses with integral operating-fluid tanks, such as those containing lubricating oil or fuel, face difficulty in clearly discerning the fill level due to insufficient light transmission through the light-transmitting material used in the second housing section.
Innovation Solution
Incorporating a light-transmitting, light-conducting element into the motor carrier that scatters and transmits visible light into the operating-fluid tank, providing background illumination and enhancing visibility of the fill level through the second housing section, which is partially or entirely made of light-transmitting material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the second housing section is made entirely from light-transmitting material, then the fill level should be discernible, but the fill level is only discernible with difficulty
Solution Approach 1:
A light-conducting element is introduced as an intermediary component between the external light source and the operating-fluid tank. This element conducts light into the tank interior, mediating the illumination process to enable clear fill level detection through the light-transmitting second housing section.
Solution Approach 2:
The light-conducting element is pre-positioned within the motor carrier to conduct light into the tank before observation. This preliminary illumination action ensures that the tank interior is adequately lit for fill level discernment before the user attempts to read the fill level.
2Strength
If the first housing section is covered by opaque elements, then structural integrity and protection are improved, but light transmission into the tank is reduced
Solution Approach 1:
The housing structure is segmented into light-transmitting and opaque sections. The second housing section remains light-transmitting for observation, while the first housing section can be partially opaque for protection. The light-conducting element bridges this segmentation by conducting light through or around opaque areas into the tank interior.
Solution Approach 2:
Different parts of the housing have different optical properties tailored to their functions. The second housing section has high light transmission quality for fill level observation, while the first housing section can have opaque or reduced transmission quality for structural protection. The light-conducting element locally concentrates light transmission where needed despite overall opaque coverage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution allows for clear discernment of the operating-fluid fill level by increasing light transmission into the tank, even when the first housing section is partially covered, thereby improving visibility and usability.
Implementation Method 1
a light-transmitting light-conducting element for conducting light into the operating-fluid tank... composed of a light-transmitting material, on which visible light is scattered
Data Source
AI summary
A handheld work apparatus includes a drive motor, an operating-fluid tank and a motor carrier on which the drive motor is held. The operating-fluid tank has a first housing section and a second housing section. The first housing section is realized so as to be integral with the motor carrier. At least a portion of the second housing section is formed from light-transmitting material to permit discerning the fill level of the operating-fluid tank. The motor carrier has a light-transmitting light conductive element for conducting light into the operating-fluid tank.