Battery Module Thermal Shield for Sensor Accuracy

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Solution Overview

Problem

The existing battery modules experience a significant difference between the actual battery temperature and the detected temperature by the temperature sensor, which can lead to inaccurate temperature readings, potentially causing safety issues during rapid charge or discharge operations.

Innovation Solution

A battery module design that includes a temperature sensor positioned between the battery and a structure with a thermal shield element between the sensor and the structure, which directs the temperature detection range towards the battery, thereby reducing the temperature difference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a structure regulating the temperature of the battery is provided around the battery, then the temperature control capability is improved, but the difference between the actual battery temperature and the detected temperature increases

Engineering Contradiction:
Improvetemperature control capabilityVSAvoidtemperature detection accuracy
Core Design Contradiction:
TemperatureVSMeasurement precision

Solution Approach 1:

A thermal shield element is introduced as an intermediary component positioned between the temperature sensor and the temperature regulating structure. This thermal shield blocks the direct thermal influence from the structure to the sensor, allowing the structure to effectively regulate battery temperature while preventing it from interfering with the temperature sensor's measurements. The thermal shield acts as a mediator that separates the temperature control function from the temperature detection function.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 design effectively minimizes the difference between the actual battery temperature and the detected temperature, ensuring accurate readings and preventing potential battery degradation or unsafe charging conditions.

Implementation Method 1

a thermal shield element at least partially positioned between the temperature sensor and the structure

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS20230318061A1Battery module
Publication Date: 2023.10.05 ENVISION AESC JAPAN LTD
  • US20230318061A1 patent drawing
  • US20230318061A1 patent drawing
  • US20230318061A1 patent drawing

AI summary

A battery module includes a battery, a structure positioned at least partially around the battery, a temperature sensor positioned between the battery and the structure, and a directing portion directing a temperature detection range of the temperature sensor toward the battery.