Preparation vessel with a cooling device
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Solution Overview
Problem
Existing food processors with preparation vessels require expensive and large cooling circuits driven by electrical pumps, making them costly and inefficient for cooling purposes.
Innovation Solution
A double-walled preparation vessel design incorporating a Peltier element and phase change material between the inner and outer walls, where the Peltier element transfers heat to the phase change material, eliminating the need for a separate cooling circuit and allowing the vessel to be powered directly from a base device or have a standalone power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling circuit with heat transfer medium and electrical pump is used, then cooling capability is achieved, but manufacturing cost and device size increase
Solution Approach 1:
The invention extracts and eliminates the complex cooling circuit, heat transfer medium, and electrical pump from the system. Instead, it uses a Peltier element that directly contacts the vessel wall to provide cooling, thereby achieving the cooling function without the cumbersome cooling circuit infrastructure
Solution Approach 2:
The invention replaces the mechanical cooling system (pump-driven cooling circuit) with an electrical solid-state cooling device (Peltier element). The Peltier element uses the Peltier effect to directly transfer heat from the vessel wall without requiring mechanical pumps or circulating fluids, thus simplifying the system while maintaining cooling capability
2Temperature
If a cooling circuit with electrical pump is used, then cooling function is provided, but manufacturing cost increases
Solution Approach 1:
The invention removes the expensive cooling circuit and electrical pump components, retaining only the essential cooling function through a simpler Peltier element that can be directly integrated into the vessel wall structure, thereby reducing manufacturing complexity and cost
Solution Approach 2:
The Peltier element serves as a cost-effective replacement for the expensive cooling circuit system. While Peltier elements have limited lifespan compared to robust mechanical pumps, their lower cost, simpler integration, and absence of moving parts make them economically advantageous for this application
3Productivity
If a double-walled vessel with Peltier element and phase change material is used, then cooling efficiency improves, but vessel wall structure becomes more complex
Solution Approach 1:
The invention merges the Peltier element and phase change material into the vessel wall structure itself, creating an integrated thermal management system. The double-walled construction allows the Peltier element to be embedded between the inner and outer walls, with the phase change material enhancing thermal energy storage and release capabilities directly within the wall structure
Solution Approach 2:
The invention utilizes phase change material that undergoes phase transitions (solid-liquid) to store and release thermal energy. This phase change mechanism significantly enhances cooling efficiency by absorbing large amounts of heat during melting and releasing it during solidification, thereby improving the overall thermal performance of the vessel wall
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
This design enables effective cooling without the need for an electrical pump, allowing for efficient thermal energy storage and release, reducing manufacturing costs and increasing cooling efficiency, while enabling the preparation vessel to be used independently or connected to a food processor.
Implementation Method 1
the cooling device is a Peltier element
Implementation Method 2
a phase change material (PCM, phase change material) located between the cooling device and the outer wall
Implementation Method 3
the phase change material, which is able to absorb the thermal energy due to the high specific heat capacity for phase change materials
Data Source
AI summary
A preparation vessel, in particular for a food processor, has a vessel wall and a preparation area surrounded by the vessel wall. The vessel wall has a cooling device that contacts the vessel wall in a heat-conducting manner for cooling a preparation item present in the preparation area. The vessel wall in at least a partial area has a double-walled design, with an inner wall bordering the preparation area and an outer wall that is formed separately from the inner wall and spaced apart from the inner wall by a gap, wherein the gap has the cooling device and a phase change material located between the cooling device and the outer wall as viewed in a direction from the preparation area to the outer wall.