Elastic Busbar Measuring Assembly for Temperature and Voltage

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Solution Overview

Problem

Current battery systems in electric vehicles face challenges in accurately monitoring temperature and voltage across busbars due to inadequate contact and measurement methods, leading to potential safety issues and inefficiencies in power management.

Innovation Solution

A measuring assembly with a contact element, temperature sensor, and voltage measurement conductor, secured by an elastic fixation element that forms a stable planar contact with the busbar, ensuring improved heat transfer and combined temperature and voltage measurement through a single connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple separate connections are used for temperature and voltage measurement, then measurement reliability is improved, but device complexity increases

Engineering Contradiction:

Improvemeasurement reliabilityVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines temperature and voltage measurement functions into a single contact element. The contact element includes both a temperature sensor and an electrically conductive portion that serves as a voltage measurement conductor, allowing both measurements to be taken through one connection point on the busbar, thus reducing device complexity while maintaining measurement reliability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The contact element is designed with multi-functionality, serving both as a temperature measurement probe and a voltage measurement conductor simultaneously. This universal design eliminates the need for separate measurement connections, simplifying the overall measurement system while ensuring comprehensive monitoring of both temperature and voltage parameters

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Device complexity

If a single contact element is used for both temperature and voltage measurement, then device complexity is reduced, but measurement precision deteriorates

Engineering Contradiction:

Improvedevice complexityVSAvoidmeasurement precision

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The contact element features differentiated local qualities with distinct functional zones: a temperature sensor portion for thermal measurement and an electrically conductive portion for voltage measurement. Each portion is optimized for its specific function, ensuring high measurement precision for both temperature and voltage despite being integrated into a single contact element

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The contact element is segmented into functionally distinct portions: a temperature sensor portion and an electrically conductive portion. This segmentation allows each portion to independently perform its specific measurement function with high precision, while both portions are integrated into a single contact element that connects to the busbar through one fixation point

Inventive Principle:

Principle #1Segmentation

3Stability of the object's composition

If rigid fixation is used to ensure stable contact, then contact stability is improved, but adaptability deteriorates

Engineering Contradiction:

Improvecontact stabilityVSAvoidadaptability

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The fixation element is designed with elastic properties, allowing it to dynamically adapt to different busbar positions and orientations. The elastic fixation element can deform to accommodate variations in busbar placement while maintaining stable contact pressure, thus providing both contact stability and adaptability to different installation conditions

Inventive Principle:

Principle #15Dynamics

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 solution enhances the accuracy and reliability of temperature and voltage measurements, reduces systematic errors, and simplifies the measurement process by eliminating the need for multiple connections, thereby improving safety and efficiency in battery systems.

Implementation Method 1

the fixation element is adapted such that, in the fixed state, it presses the contact element to a measuring surface of the busbar by an elastic force provided by the fixation element in the fixed state

Methodology Applied

Scientific EffectElastic force: Elasticity

Implementation Method 2

the contact element is pressed by the fixation element in a fixed state against a busbar in such a way that an improved heat transition is provided

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS11585855B2Measuring assembly for measuring temperature and voltage

Publication Date: 2023.02.21 SAMSUNG SDI CO LTD

AI summary

A measuring assembly for measuring a temperature and a voltage includes a contact element including a temperature sensor and an electrically conductive portion, a voltage measurement conductor electrically connected to the conductive portion of the contact element, and an electrically conductive fixation element electrically connected to the conductive portion of the contact element, the electrically conductive fixation element extending through a fixation hole of a busbar in a fixed state to connect to the busbar by an elastic force provided by the electrically conductive fixation element in the fixed state, and the electrically conductive fixation element pressing the contact element to a measuring surface of the busbar by the elastic force in the fixed state.