Single-Pin Food Thermometer Probe for Faster Heat Conduction

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Solution Overview

Problem

Existing electronic thermometers have a large size and complex structure, leading to slow heat conduction and poor measurement accuracy, causing inconvenience in use.

Innovation Solution

A single-pin wireless electronic thermometer with a temperature sensor fitted to the inner wall of the insertion part and a compact, easy-to-assemble design, along with a charging device for environmental sustainability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the temperature sensor is positioned away from the inner wall of the insertion part, then the structure is easier to manufacture, but the heat conduction speed decreases and measurement accuracy deteriorates

Engineering Contradiction:
Improvetemperature sensor positioning precisionVSAvoidheat conduction speed
Core Design Contradiction:
Manufacturing precisionVSSpeed

Solution Approach 1:

The insertion part is segmented into a probe portion and a temperature sensing portion, with the temperature sensor mounted on the inner wall of the insertion part. This segmentation allows the sensor to be positioned optimally for heat conduction while maintaining manufacturing feasibility through modular assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The inner wall of the insertion part serves as an intermediary thermal conduction path between the food being measured and the temperature sensor. By mounting the sensor on the inner wall rather than having it float in the cavity, the patent creates a direct thermal coupling pathway that improves heat conduction speed and measurement accuracy.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of manufacture

If the electronic thermometer has a conventional two-portion structure with gaps, then the components are easier to assemble, but the heat conduction is slow and measurement accuracy is poor

Engineering Contradiction:
Improvecomponent assembly easeVSAvoidtemperature measurement accuracy
Core Design Contradiction:
Ease of manufactureVSMeasurement precision

Solution Approach 1:

The patent merges the temperature sensing function directly into the insertion part by mounting the temperature sensor on the inner wall of the insertion part. This integration eliminates the thermal gap that exists in conventional designs where the sensor is separated from the insertion part, thereby improving heat conduction and measurement accuracy while maintaining assembly simplicity.

Inventive Principle:
Principle #5Merging (Combining)

3Speed

If the temperature sensor is fitted to the inner wall of the insertion part, then the heat conduction speed increases and measurement accuracy improves, but the manufacturing complexity increases

Engineering Contradiction:
Improveheat conduction speedVSAvoidstructural complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The insertion part is designed as a separate module with the temperature sensor mounted on its inner wall, creating a self-contained temperature sensing assembly. This segmentation allows for standardized manufacturing of the sensor module that can be easily integrated into the overall thermometer structure, reducing overall manufacturing complexity despite the improved sensor positioning.

Inventive Principle:
Principle #1Segmentation

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

Faster and more accurate temperature measurement with improved heat conduction, ease of use, and environmental friendliness through a compact and disassembleable design.

Implementation Method 1

a temperature sensor for detecting an internal temperature of the food is arranged inside at least the temperature measuring body or the insertion part

Methodology Applied
Scientific EffectTemperature sensing: Thermocouple

Implementation Method 2

the temperature sensing portion of the temperature sensor is fitted with the inner wall of the insertion part, such that the heat conduction is faster and more accurate

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Data Source

PatentUS12504331B2Single-pin wireless electronic thermometer and charging device for the same
Publication Date: 2025.12.23 FINEMOLD TECH CO LTD
  • US12504331B2 patent drawing
  • US12504331B2 patent drawing
  • US12504331B2 patent drawing

AI summary

Disclosed are a single-pin wireless electronic thermometer and a charging device for the same. The single-pin wireless electronic thermometer includes a temperature measuring body with an inner cavity, and one end of the temperature measuring body is connected with an insertion part for inserting into food, a temperature sensor for detecting an internal temperature of the food is arranged inside at least the temperature measuring body or the insertion part, a temperature sensing portion of the temperature sensor is fitted to an inner wall of the temperature measuring body or an inner wall of the insertion part, and a control board is arranged in the inner cavity and connected to the temperature sensor. The single-pin wireless electronic thermometer of the present disclosure has a compact structure, with faster and more accurate heat conduction, so that the measuring effect may be improved.