Dual-Housing Thermal Casing for High-Temperature Data Loggers

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Solution Overview

Problem

Conventional data loggers are vulnerable to high temperatures, with existing insulation materials allowing heat transfer that can exceed critical levels, risking damage to the device.

Innovation Solution

A thermal protection device with a dual-housing structure, featuring a thermal insulator casing and a second housing containing thermal energy absorbing means, such as a heat transfer fluid, to absorb external heat before it reaches the data logger, using a partition to separate the housings and control vaporization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a thermal insulator casing is used to protect the data logger, then the protection from external temperature is improved, but heat still transfers through the casing at a speed proportional to the temperature difference, eventually reaching critical levels

Engineering Contradiction:
Improveprotection from external temperatureVSAvoidinternal temperature
Core Design Contradiction:
ReliabilityVSTemperature

Solution Approach 1:

The casing is divided into two separate housings: a first housing containing the data logger and a second housing containing thermal energy absorbing means. These housings are fluidly sealed from each other and separated by a partition, creating distinct thermal zones that prevent direct heat transfer to the electronics.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Thermal energy absorbing means are introduced as an intermediary substance in the second housing. This absorbing means intercepts thermal energy entering the casing from outside before it can reach the first housing containing the data logger, acting as a thermal buffer.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Temperature

If thermal energy absorbing means are added to absorb heat before it reaches the data logger, then the internal temperature control is improved, but the device structure becomes more complex with dual housings and partition

Engineering Contradiction:
Improveinternal temperature controlVSAvoiddual housing structure
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The second housing containing thermal energy absorbing means serves multiple functions: it acts as a thermal buffer, provides structural support for the casing, and contains the partition that separates the two housing zones. This multi-functionality reduces the need for additional separate components.

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

Solution Approach 2:

The first housing containing the data logger is nested within the overall casing structure, with the second housing and partition system providing the outer protective layer. This nested arrangement integrates multiple protective functions within a compact form factor.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 effectively limits internal temperature rise, protecting the data logger from damaging conditions by absorbing external heat, thus extending its operational range in high-temperature environments.

Implementation Method 1

a casing (2, 2') formed from a thermal insulator

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

means for absorbing thermal energy entering said casing from outside said casing, said thermal energy absorbing means being housed in said second housing

Methodology Applied
Scientific EffectHeat absorption: Absorption (physical)

Implementation Method 3

said second housing is provided in the form of a heat transfer fluid tank comprising a fluid inlet opening onto an outer surface of said casing, and a fluid outlet opening onto an outer surface of said casing

Methodology Applied
Scientific EffectHeat transfer: Convection

Implementation Method 4

thermal energy absorbing means are in the form of a heat transfer fluid

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 5

said fluid outlet is a pressure relief valve allowing water vaporized by the absorption of heat energy from outside of said casing to be discharged

Methodology Applied
Scientific EffectVaporization: Evaporation

Implementation Method 6

means for controlling the vaporization of said heat transfer fluid by the absorption of heat energy from outside of said casing inside said tank, in the form of a pressure control valve

Methodology Applied
Scientific EffectPressure control: Pressure Gradient

Data Source

PatentEP4657029A1Thermal protection casing for data logger
Publication Date: 2025.12.03 TECNOSOFT
  • EP4657029A1 patent drawingFigure 1~2
  • EP4657029A1 patent drawingFigure 3~4
  • EP4657029A1 patent drawingFigure 5~6

AI summary

The invention is related to a thermal protection device (1, 1') for a data logger (9, 9'), configured to protect said data logger (9, 9') from an external temperature, said thermal protection device comprising a casing (2, 2') formed from a thermal insulator and defining a first housing (3, 3') adapted to house said data logger (9, 9'), and a second housing (4, 4') fluidly sealed from said first housing (3, 3'), characterized in that said thermal protection device further comprises means for absorbing thermal energy entering said casing (2, 2') from outside said casing (2, 2'), said thermal energy absorbing means being housed in said second housing (4, 4'), so that thermal energy entering said casing (2, 2') from outside said casing (2, 2') being absorbed by said thermal energy absorbing means before arriving at the first housing (3, 3'), said first housing (3, 3') being separated from said second housing (4, 4') by a partition delimiting said first housing (3, 3'), said second housing (4, 4') being implemented such that it at least partially surrounds said first housing (3, 3') so that thermal energy entering said casing (2, 2') from outside said casing (2, 2') passes through the second housing (4, 4') before arriving at the first housing (3, 3').