Cooking and Stirring Machine With Dual-Speed One-Way Bearing Drive

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Solution Overview

Problem

Traditional food stirrers lack the ability to simultaneously stir and heat, often requiring separate processes, leading to inefficiency and inconvenience, with existing models having limited speed control and stability issues.

Innovation Solution

A cooking and stirring machine with a machine base, cup body, and heating element, featuring a reduction gear set and one-way bearings for adjustable speed stirring, and a conductor element for simultaneous heating, allowing for high and low-speed stirring and heating capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If a single-speed motor with mechanical variable speed mechanism is used, then the structure is simple, but the speed change range is small and cannot meet the stirring demands of various objects

Engineering Contradiction:
Improvestirring speed rangeVSAvoidspeed control mechanism
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The patent applies dynamics by making the speed control system adjustable through electronic means rather than fixed mechanical reduction. The dual-speed motor with independent control for high and low speeds allows dynamic adaptation to different stirring requirements, replacing the static mechanical variable speed mechanism with a more flexible electronic control system that provides a wider speed range.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent replaces the mechanical variable speed mechanism with an electronic control system. The dual-speed motor uses electronic commutation and control circuits to achieve speed variation, substituting the mechanical friction-based or gear-based speed adjustment mechanisms with a more reliable and wider-range electronic speed control approach.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If voltage adjustment is used to control stirring speed, then the structure is simple, but the stability and reliability are poor

Engineering Contradiction:
Improvestirring speed stabilityVSAvoidspeed control system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the unreliable voltage adjustment method with a dual-speed motor design that has two distinct, stable speed settings. Instead of continuously varying voltage which causes instability, the system provides discrete high and low speed modes through independent control circuits, achieving both simplicity and reliability through electronic switching between predetermined speed states.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the speed control parameter from continuous voltage adjustment to discrete speed ratio control. The dual-speed motor maintains a fixed speed ratio between high and low speeds, and the control system switches between these two parameter states rather than continuously varying voltage, resulting in improved stability and reliability of stirring speed.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If heating function is added to stirrers, then the cooking efficiency is improved, but the structure becomes complicated or cannot stir and heat simultaneously

Engineering Contradiction:
Improvecooking efficiencyVSAvoidstructure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges the heating function with the stirring function by integrating the heating element directly into the cup body structure. The heating wire is embedded in the cup body bottom, allowing simultaneous heating and stirring operations within a single integrated device, eliminating the need for separate heating equipment and reducing overall system complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent makes the cooking and stirring machine universal by combining multiple functions into one device. The machine can simultaneously perform stirring at two different speeds and heating, allowing it to handle various cooking tasks (chopping, mixing, heating, simmering) with a single device, replacing the need for multiple separate kitchen appliances.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables efficient and convenient cooking and stirring with a wide speed range, preventing hot fluid splashing and ensuring even cooking, while allowing for chopping and heating in a single operation.

Implementation Method 1

the bottom of the cup body is installed with a heating element

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

between the output shaft and the drive shaft is provided with a reduction gear set which realizes low rotation speed transmission

Methodology Applied
Scientific EffectMechanical energy transmission: Gear

Implementation Method 3

the output shaft and the drive shaft are connected through a first one-way bearing

Methodology Applied
Scientific EffectMechanical constraint: Ratchet

Data Source

PatentUS9211028B2Cooking and stirring machine
Publication Date: 2015.12.15 HUIYANG ALLAN PLASTIC & ELECTRIC INDS
  • US9211028B2 patent drawing
  • US9211028B2 patent drawing
  • US9211028B2 patent drawing

AI summary

A cooking and stirring machine having a machine base, a cup body for accommodating food, and a cup lid; the bottom of the cup body is installed with a heating element and an upper connector which drives a processing tool; the base bottom is installed with a fan and a motor; the upper end of the motor is provided with an output shaft, a drive shaft, and a lower connector which is installed on the drive shaft and matched with the upper connector; the output shaft and the drive shaft are connected through a one-way bearing. The cooking and stirring machine can heat food with stirring; in addition, the setting of the reduction gear set and plural one-way bearings realizes the function of outputting different rotation speeds when the motor rotates clockwise and anticlockwise.