Double Wall Vessel for Stand Mixer Ice Cream Cooling

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Solution Overview

Problem

Stand mixers lack an efficient and easy-to-use solution for producing high-quality ice cream, as existing fittings are not designed to effectively churn and cool ingredients to the necessary temperature for proper thickening.

Innovation Solution

A stand mixer with a planetary movement mechanism and an ice cream maker kit that includes a double wall vessel for cooling and a blade for processing ingredients, allowing for the integration of a refrigerant liquid to lower temperatures and a secure mounting system for efficient ice cream production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a double wall vessel with refrigerant liquid is added to the stand mixer, then the cooling capability is improved, but the device complexity increases

Engineering Contradiction:
Improvecooling capabilityVSAvoiddevice complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The stand mixer is designed with a universal bowl adapter that can accommodate both traditional mixing attachments and the ice cream maker vessel. The planetary movement mechanism serves dual purposes: it mixes ingredients during preparation and churns ice cream during freezing, eliminating the need for separate cooling and mixing systems.

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

Solution Approach 2:

The ice cream maker vessel with its double wall structure containing refrigerant liquid is nested within the existing stand mixer bowl assembly. The cooling system is integrated into the vessel itself rather than requiring a separate external cooling unit, reducing overall system complexity while maintaining effective cooling capability.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If a secure mounting system is implemented for the ice cream maker kit, then the reliability of operation is improved, but the ease of operation decreases

Engineering Contradiction:
Improveoperation reliabilityVSAvoidease of installation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The mounting system is divided into separate modular components: a bowl adapter that attaches to the stand mixer, a vessel that fits over the adapter, and a blade assembly that connects to both. This segmentation allows each component to be easily installed and removed independently while maintaining secure connections during operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bowl adapter serves as an intermediary component between the stand mixer and the ice cream maker vessel. It provides a secure mounting interface that ensures reliable operation during churning while allowing for easy installation and removal without requiring complex tools or procedures.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If the planetary movement mechanism is used for churning, then the mixing effectiveness is improved, but the device complexity increases

Engineering Contradiction:
Improvemixing effectivenessVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The planetary movement mechanism, originally designed for mixing various ingredients in the bowl, is utilized for both traditional mixing and ice cream churning operations. The same motor-driven planetary gears that knead dough and whip cream are employed to churn the ice cream mixture, eliminating the need for a separate churning mechanism.

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

Solution Approach 2:

The churning function is merged with the existing planetary mixing mechanism. The blade assembly is designed to work with the planetary movement, combining the cooling action of the refrigerant liquid with the mechanical churning action of the planetary gears to achieve effective ice cream production using the stand mixer's existing high-performance mixing system.

Inventive Principle:
Principle #5Merging (Combining)

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 the stand mixer to produce high-quality ice cream by ensuring the ingredients are cooled to the right temperature and mixed effectively, with the kit being easy to install and use, maintaining the stand mixer's functionality and appearance.

Implementation Method 1

a double wall vessel (25) for cooling and a blade (23) for processing ingredients, allowing for the integration of a refrigerant liquid to lower temperatures

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Data Source

PatentEP3692799B1Ice cream maker fitting for a stand mixer, ice cream maker kit for a stand mixer and stand mixer
Publication Date: 2023.08.30 SMEG
  • EP3692799B1 patent drawingFigure 1
  • EP3692799B1 patent drawingFigure 2
  • EP3692799B1 patent drawingFigure 3~4

AI summary

An ice cream maker fitting for a stand mixer (1) provided with a bowl (6) comprises: a double wall vessel (25) comprising an outer wall (28) and an inner wall (29), which are coupled so as to define between the outer wall (28) and the inner wall (29) a sealed space (30), wherein a refrigerant fluid (31) is arranged; the double wall vessel (25) being sized so as to be arranged, in use, inside the bowl (6) of the stand mixer (1); a fixing system (26) configured to fix the double wall vessel (25) to the bowl (6) of the stand mixer (1).