Temperature Probe Heat Conductor Assembly for EV Charging
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Solution Overview
Problem
Existing temperature detection assemblies for electrically conductive elements in the electromobility sector suffer from delays and inaccuracies in determining temperature, leading to potential overheating, thermal destruction, and safety risks due to discrepancies between the temperature of the conductive elements and the temperature probes.
Innovation Solution
An assembly comprising a temperature probe surrounded by a heat conductor made of electrically insulating and heat-conductive material, such as highly filled silicone, which minimizes heat-insulative air gaps and ensures precise and timely temperature measurement by reducing the temperature difference between the conductive element and the probe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a temperature probe is used to detect the temperature of an electrically conductive element, then the temperature can be monitored, but there is a delay and inaccuracy in the temperature measurement due to heat-insulative air gaps between the probe and the element
Solution Approach 1:
A heat conductor made of electrically insulating and heat-conductive material is introduced as an intermediary between the temperature probe and the electrically conductive element. This heat conductor surrounds the temperature probe and has a bearing surface that contacts the conductive element, facilitating efficient heat transfer while maintaining electrical insulation and eliminating air gaps that cause measurement delays and inaccuracies.
Solution Approach 2:
The temperature probe is nested within the heat conductor, which itself contacts the electrically conductive element. This nested arrangement ensures intimate thermal contact between the probe and the element through the heat conductor, maximizing heat transfer efficiency while the heat conductor's electrical insulation properties prevent electrical interference.
2Measurement precision
If a temperature probe is placed near the electrically conductive element, then temperature monitoring is possible, but air gaps create thermal insulation that reduces measurement accuracy
Solution Approach 1:
The heat conductor serves as a mediator that eliminates air gaps between the temperature probe and the electrically conductive element. By surrounding the probe and contacting the element, it ensures direct thermal coupling without requiring complex positioning mechanisms, thus improving measurement accuracy without significantly increasing device complexity.
Solution Approach 2:
The heat conductor is made of composite material that combines electrical insulation properties with high heat conductivity. This allows it to function as both a thermal pathway and an electrical insulator, simplifying the overall assembly structure by eliminating the need for separate insulation components while maintaining measurement accuracy.
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 significantly reduces temperature measurement delays and inaccuracies, ensuring timely and precise detection of overheating, thereby enhancing safety by minimizing the risk of thermal destruction and fires in electric vehicle charging systems.
Implementation Method 1
a heat conductor separate from the temperature probe and made of an electrically insulating and heat-conductive material
Data Source
AI summary
An assembly for detecting a temperature of an electrically conductive element comprises a temperature probe and a heat conductor separate from the temperature probe and made of an electrically insulating and heat-conductive material. The heat conductor surrounds the temperature probe at least in sections and has a bearing surface bearing against the electrically conductive element.