Portable drink blender
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Solution Overview
Problem
Portable food blenders lack safety and reliability features, particularly in preventing leakage and ensuring safe operation when using a straw or inverted position, and existing designs often suffer from leakage and contamination issues due to split spout components and inadequate interlock mechanisms.
Innovation Solution
A portable drink blender with a unitary leak-proof spout, offset blade rotation axis, and a cap hinged to the motor housing that seals the spout and requires the cap to be closed for operation, featuring a secure interlock mechanism using magnets and Hall effect switches to prevent accidental activation and ensure liquid-tight sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a spout is provided in the motor housing to allow drinking while blended, then convenience is improved, but leakage and contamination risks increase due to potential contact between the spout and rotating blades
Solution Approach 1:
The spout is positioned asymmetrically in the motor housing, specifically located away from the blade rotation path. This asymmetric placement allows the spout to extend through the housing without intersecting the rotating blades, eliminating contamination risks while maintaining the convenience of drinking during operation.
2Weight of moving object
If the blender is designed for portability with a compact structure, then ease of transport is improved, but safety risks increase due to potential finger contact with rotating blades when the lid is removed
Solution Approach 1:
The blender is designed with a compact form factor where the blade assembly is contained within a enclosed motor housing. The spout extends through the housing to allow drinking without removing the lid, and the motor housing itself acts as a protective barrier that prevents finger contact with rotating blades, eliminating injury risk before it can occur.
3Adaptability or versatility
If the spout is integrated into the motor housing to allow inverted operation, then versatility is improved, but reliability decreases due to potential misalignment and leakage at the spout connection
Solution Approach 1:
The spout is merged with the motor housing as a single integrated component rather than being a separate attachment. This unified design eliminates connection interfaces that could misalign or leak, ensuring reliable sealing in both upright and inverted positions while maintaining the versatility of flexible operation orientations.
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
Enhances safety and reliability by preventing finger injuries, allowing straw use, and eliminating leakage and contamination risks through a unitary spout design and effective interlock mechanism, ensuring secure operation and efficient blending.
Implementation Method 1
a cap hinged to the motor housing to seal the spout, and in which the blender activation switch may only be operated with the cap closed
Data Source
AI summary
A portable drink blender includes a blade rotation axis offset from center such that the blender blades to not extend across in interior of the drinking spout. The motor housing is formed of a lower housing having the complete spout formed therein, and an upper housing including an aperture through which the spout extends. A cover interlock is provided which prevents operation of the motor unless the cover is in the closed position to seal the spout closed.