Blender Magnetic Interlock Shield to Reduce Motor Field Interference
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Solution Overview
Problem
Conventional blender interlock systems are prone to damage, failure, and interference from motor vibrations, leading to false actuations and difficulties in cleaning, and often require a specific container-base combination, limiting compatibility and functionality.
Innovation Solution
A blender system with a magnetic interlock mechanism using a reed switch and a shield made of metal to block the motor's magnetic field, allowing operation only when the container and blade base are properly interlocked, and enabling compatibility with different container volumes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanical interlock system is used to prevent blade rotation when the lid is removed, then safety is improved, but the system becomes prone to damage from vibrations and wear, leading to false actuations
Solution Approach 1:
The patent replaces the mechanical interlock system with a magnetic field-based detection system. A magnet is embedded in the lid, and a reed switch in the base detects its presence through magnetic field interaction, eliminating mechanical arms, links, springs, and other mechanical connection paths that are prone to vibration damage and wear.
Solution Approach 2:
The patent introduces a magnetic field as an intermediary between the lid and base interaction. The magnetic field serves as a non-contact mediator that transmits the presence information of the lid to the base without requiring direct mechanical contact, thereby avoiding vibration-induced damage and wear.
2Reliability
If mechanical interlock systems are used, then blade rotation can be prevented, but the system requires extra space for mechanical connection paths and cannot provide sufficient vibration isolation
Solution Approach 1:
The magnetic field-based detection system eliminates the need for mechanical connection paths, freeing up space within the blender base and eliminating vibration isolation requirements. The magnetic field can penetrate through the base structure without requiring dedicated mechanical pathways.
3Adaptability or versatility
If traditional blender systems are designed with dedicated container-base combinations, then specific functionality is achieved, but compatibility with different container sizes is limited
Solution Approach 1:
The magnetic field-based detection system creates a universal interface between the base and various container types. The magnet in the lid and reed switch in the base form a compatible system that works across different container sizes and configurations, eliminating the need for dedicated mechanical connection paths for each container type.
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 reliability and compatibility by preventing false actuations and allowing operation with various container sizes, while reducing mechanical complexity and interference, thus improving user safety and convenience.
Implementation Method 1
a shield that shields the switch and trigger from a magnetic field generated by the motor
Implementation Method 2
The container may include a trigger that activates the switch when the blade base and the container are interlocked
Data Source
AI summary
A blender system that includes a base that is selectively and operatively engaged with a container is shown and described herein. The blender system may include a container. The container may include a magnet and may be engagable with a blade base. The blade base may include a switch that responds to the magnet. The blender system may include a shield that shields the magnet and switch from a magnetic field generated by operation of a motor.