Hand-Held Blender With Detachable Tools for Multi-Speed Operation

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Solution Overview

Problem

Traditional hand blenders have single functions, are difficult to clean, and lack versatility in speed adjustment, as the stirring tool is typically non-detachable and requires separate machines for different functions and speeds.

Innovation Solution

A hand-held blender with a detachable body and multiple stirring tools, featuring a motor with a deceleration component using a planetary gear set for adjustable speed output, along with control levers for half speed and reverse operation, enabling easy tool interchange and multiple speed settings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the stirring tool is made non-detachable from the body, then the structure is simpler and more compact, but the device becomes difficult to clean and lacks versatility

Engineering Contradiction:
Improvestructure simplicityVSAvoidfunctionality
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The blender is divided into two separable parts: a motor body and a stirring tool. The stirring tool can be detached from the body through a connection interface, allowing users to clean the tool separately or replace it with different tools for various functions. This segmentation resolves the contradiction by maintaining structural simplicity while enabling versatility through tool interchangeability.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If a single machine is used for multiple functions with different speed requirements, then versatility is improved, but the speed control system becomes more complex

Engineering Contradiction:
Improvemulti-function capabilityVSAvoidspeed conversion complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a dynamic speed control system where the motor can operate at different speeds based on the attached tool. A speed detection device identifies the tool type and automatically adjusts the motor speed through a control circuit. This dynamic adjustment allows the single machine to handle multiple functions with different speed requirements without needing complex mechanical speed conversion mechanisms.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the stirring tool is detached for cleaning or tool replacement, then versatility and ease of cleaning are improved, but the connection mechanism becomes more complex

Engineering Contradiction:
Improvecleaning convenienceVSAvoidconnection mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The stirring tool is extracted as a separate, detachable component from the motor body. The connection interface includes simple coupling elements that allow easy attachment and detachment. This extraction principle enables users to remove the stirring tool for cleaning or replacement without complicating the overall structure, as the connection mechanism is designed to be simple and intuitive.

Inventive Principle:
Principle #2Taking out (Extraction)

4Adaptability or versatility

If different tools are designed for different functions, then functionality is improved, but the overall device size and complexity increase

Engineering Contradiction:
Improvetool specializationVSAvoiddevice size
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The motor body is designed as a universal platform that can accommodate multiple types of stirring tools through a standardized connection interface. Different tools (e.g., blending attachments, chopping tools, beating whisks) can be attached to the same motor body, allowing one device to perform multiple specialized functions without increasing the base device size. The tools themselves are compact and attach only when needed.

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

The solution provides a multifunctional, easy-to-clean hand blender with adjustable speed options, enhancing user safety and convenience by allowing different tools to be connected for various tasks, such as egg beating, potato blending, or chopping, while maintaining a compact design.

Implementation Method 1

a deceleration component coaxially arranged on the output shaft via a one way bearing and configured for outputting a lower speed than the output shaft to a low speed output connector; the deceleration component comprises at least a planetary gear set having a plurality of planet wheels

Methodology Applied
Scientific EffectPlanetary gear mechanism: Epicyclic Gearing

Implementation Method 2

a deceleration component coaxially arranged on the output shaft via a one way bearing

Methodology Applied
Scientific EffectOne way bearing mechanism: Ratchet

Data Source

PatentEP3005918B1Hand-held blender
Publication Date: 2019.05.22 HUIYANG ALLAN PLASTIC & ELECTRIC INDS
  • EP3005918B1 patent drawingFigure 1
  • EP3005918B1 patent drawingFigure 2
  • EP3005918B1 patent drawingFigure 3

AI summary

The invention discloses a hand blender with a body which can connected with different stirring tools. The body includes a motor with an output shaft, a deceleration component and a plurality of output connectors. The speed control knob and the safety switch, starting switch which control the moving of the motor are set up of the body. The control circuit includes a half speed control lever and a reverse control lever which can be moved by the corresponding stirring tools. The hand blender can connected with different stirring tools and output different kinds of speeds. It is more convenient and safe.