Thermosensitive Probe Coupling Structure Against Ambient Heat

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Solution Overview

Problem

Existing thermosensitive probes are susceptible to the influence of ambient temperature, which affects their responsiveness to the temperature change of the object being measured.

Innovation Solution

A thermosensitive probe configuration that includes a non-metallic thermoconductive member housing a thermosensitive element, surrounded by a coupling member that fixes the element to the thermoconductive member, thereby suppressing ambient temperature influence while maintaining responsiveness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the thermosensitive element is directly exposed to the exterior surface for rapid temperature measurement, then responsiveness to temperature change is improved, but susceptibility to ambient temperature influence worsens

Engineering Contradiction:

Improveresponsiveness to temperature changeVSAvoidambient temperature influence

Core Design Contradiction:

SpeedVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a coupling member as an intermediary substance between the thermoconductive member and the thermosensitive element. This coupling member has controlled thermal conductivity that allows heat transfer from the object to the thermosensitive element while filtering out ambient temperature influences. The coupling member mediates the thermal interaction, enabling the thermosensitive element to respond rapidly to object temperature changes without being directly exposed to harmful ambient temperature variations.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If the thermosensitive element is surrounded by a coupling member, then ambient temperature influence is suppressed, but heat transfer responsiveness may be reduced

Engineering Contradiction:

Improveambient temperature influenceVSAvoidresponsiveness to temperature change

Core Design Contradiction:

Object-affected harmful factorsVSSpeed

Solution Approach 1:

The patent optimizes the thermal conductivity parameter of the coupling member to achieve the desired balance. By carefully selecting and controlling the thermal conductivity of the coupling member material and its thickness, the design enables sufficient heat transfer from the thermoconductive member to the thermosensitive element while maintaining isolation from ambient temperature influences. This parameter optimization ensures that the thermosensitive element remains responsive to object temperature changes despite being surrounded by the coupling member.

Inventive Principle:

Principle #35Parameter changes

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 configuration effectively reduces the impact of ambient temperature on the thermosensitive element, ensuring high responsiveness to the object's temperature change.

Implementation Method 1

a non-metallic thermoconductive member defining a housing space... Heat of the object is transferred to the thermosensitive element via the cap

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

The thermosensitive element changes in characteristics such as a resistance value in response to a temperature change

Methodology Applied

Scientific EffectThermistor effect: Thermistor

Data Source

PatentUS12510417B2Thermosensitive probe

Publication Date: 2025.12.30 NIHON KOHDEN CORP

AI summary

A thermosensitive probe includes: a non-metallic thermoconductive member defining a housing space; a thermosensitive element disposed in the housing space; and a coupling member having a portion surrounding the thermosensitive element in the housing space while fixing the thermosensitive element to the thermoconductive member.