Nested Heating and Cooling Layout for Compact Tempering Units

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Solution Overview

Problem

Existing temperature control devices require a large amount of space due to the separate arrangements of heating and cooling devices, which hampers efficient temperature control and space utilization.

Innovation Solution

The heating and cooling devices are nested within a common cylindrical container, with a circulating device that uses rotational movement to guide the temperature control fluid between the windings, allowing for compact design and efficient heating or cooling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If heating and cooling devices are arranged separately, then each device can be optimized for its function, but the overall device requires a large amount of space

Engineering Contradiction:
Improvefunctional optimizationVSAvoiddevice space
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The heating device and cooling device are arranged in a nested configuration where the cooling device is positioned inside the heating device's cylindrical container. This nesting arrangement allows both devices to occupy the same spatial envelope, significantly reducing the overall footprint while maintaining functional independence of each device

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent transitions from a planar side-by-side arrangement to a three-dimensional nested arrangement. The heating device forms an outer cylindrical structure, while the cooling device is positioned concentrically inside, utilizing the radial dimension to achieve compact integration without compromising individual device performance

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Temperature

If the temperature control fluid is heated to high temperatures, then the desired temperature range is achieved, but heat loss to surrounding components increases

Engineering Contradiction:
Improvetemperature control rangeVSAvoidheat loss
Core Design Contradiction:
TemperatureVSLoss of energy

Solution Approach 1:

The cooling device is nested inside the heating device, creating a concentric arrangement where the cooling coils are surrounded by the heating jacket. This allows the cooling device to counteract heat loss from the heating process, enabling precise temperature control while reducing net energy consumption through localized thermal management

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent applies different thermal management strategies to different regions of the system. The heating device provides overall thermal energy, while the cooling device locally compensates for heat losses in specific areas, creating a differentiated thermal environment that optimizes both temperature achievement and energy efficiency

Inventive Principle:
Principle #3Local quality

3Productivity

If the circulating device uses rotational movement to guide fluid, then heat transfer efficiency is improved, but the mechanical complexity increases

Engineering Contradiction:
Improveheat transfer efficiencyVSAvoidmechanical complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The circulating device employs curved or spiral flow paths within the cylindrical container, utilizing the natural rotational movement of the fluid to enhance heat transfer. The curved geometry promotes turbulent flow and better fluid distribution around the heating and cooling surfaces, improving thermal efficiency without requiring complex mechanical moving parts

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 configuration significantly reduces space requirements while enabling effective temperature control, allowing the temperature control fluid to be heated or cooled quickly and precisely, maintaining a narrow temperature tolerance range.

Implementation Method 1

the heating device 3 for heating the temperature control fluid in particular to temperatures of up to +400° C.

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 2

the cooling device 5, which is formed in particular by the evaporator 5 of a refrigeration circuit 7

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 3

the tempering fluid flowing around the first evaporator 5 is cooled

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 4

a circulating device in the form of an impeller 15 is arranged... The tempering fluid conducted by means of the impeller 15 through the fluid guide 21

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentEP2249112B1Device for tempering a tempering fluid
Publication Date: 2016.08.31 PETER HUBER KALTEMASCHBAU AG
  • EP2249112B1 patent drawingFigure 1
  • EP2249112B1 patent drawingFigure 2
  • EP2249112B1 patent drawingFigure 3

AI summary

The device (101) has a cooling device (107) formed by vaporization of a coolant circuit. A closed fluid guiding unit (112) guides tempering fluid i.e. thermo oil, in the device, and guides the fluid between the device and a consumer load. A helical heating device (105) and the cooling device are connected to each other and arranged in a cylindrical container (103) that is provided as a part of the closed fluid guiding unit. A circulation unit (113) i.e. pump wheel, is arranged in the closed fluid guiding unit, and is formed such that the tempering fluid is transferred to the container.