Magnetic Quick-Stop Mechanism for Food Processor Drive Shafts

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Solution Overview

Problem

Conventional food processors with quick stop mechanisms face issues such as component wear due to friction-based stopping, leading to reduced lifetime, and high production costs associated with circuit control-based stopping, which complicates market promotion.

Innovation Solution

A quick stop mechanism utilizing a gear box with a transmission shaft, magnet, and clutch system that leverages magnetic force for stopping, eliminating wear and reducing production costs, featuring a metal sleeve, buckle ring, spring, and elastic pads for efficient operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If friction force is used for quick stopping, then the stopping function is achieved, but component wear occurs and lifetime is reduced

Engineering Contradiction:

Improvequick stop functionVSAvoidprocessor lifetime

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent replaces the traditional friction-based mechanical stopping system with a magnetic field-based stopping system. A magnet is positioned to interact with a metal sleeve on the transmission shaft, creating magnetic attraction force that quickly stops the shaft without physical contact, thereby eliminating wear and extending processor lifetime while maintaining the quick stop function

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If circuit control is used for quick stopping, then safety is improved, but production cost increases

Engineering Contradiction:

Improvesafety performanceVSAvoidproduction cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent replaces complex circuit control systems with a simple magnetic field-based stopping mechanism. The magnet and metal sleeve interaction provides automatic quick stopping without requiring additional sensors, control circuits, or electronic components, thereby maintaining high safety performance while significantly reducing production costs and simplifying manufacturing

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 magnetic force-based quick stop mechanism ensures high safety, long product lifetime, and low production costs, facilitating market promotion by providing a reliable and cost-effective solution for food processors.

Implementation Method 1

a magnet is disposed on inner side of the gear box, the magnet flexibly cooperates with the metal sleeve

Methodology Applied

Scientific EffectMagnetic force: Magnetism

Data Source

PatentUS10197110B2Quick stop mechanism on food processor and food processor comprising the same

Publication Date: 2019.02.05 JOIN ONE ELECTRIC (SHENZHEN) CO LTD

AI summary

The invention relates to the field of home appliance technology, and more particularly to a quick stop mechanism on a food processor and a food processing comprising the quick stop mechanism. The invention comprises a transmission shaft flexibly received in a gear box, the transmission shaft extends from the top of the gear box, a metal sleeve is fixed on one side of the transmission shaft, a bottom surface of a buckle ring disposed on a lower part of the metal sleeve abuts against the top of a spring, and the bottom of the spring abuts against a spring seat, the spring seat defines a through hole, a magnet is disposed on inner side of the gear box, and flexibly cooperates with the metal sleeve, the transmission shaft passes through the through hole and cooperates with a clutch, and the clutch is connected to a motor on the food processor.