Battery Module Sensor Groove Prevents Cell Interference

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Solution Overview

Problem

Conventional battery modules face assembly errors and potential damage to battery cells when mounting temperature sensors, due to interference between the sensor and the battery cells during the installation process.

Innovation Solution

A battery module design featuring a temperature sensor mounting groove with an assembling error preventer, which includes a protruding preventer body and a sensor assembling guider to guide the battery cell away from the sensor path, preventing interference and ensuring accurate sensor placement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the temperature sensor is inserted through the battery module to be located near the battery cells for accurate temperature measurement, then the temperature measurement accuracy is improved, but the risk of interference with battery cells and assembly errors increases

Engineering Contradiction:

Improvetemperature measurement accuracyVSAvoidassembly error prevention

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The patent introduces a temperature sensor mounting groove as an intermediary structure between the temperature sensor and the battery cells. This groove provides a dedicated pathway for the sensor while preventing direct contact with the battery cells, thus maintaining measurement accuracy without causing interference or assembly errors.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The mounting groove is pre-formed in the battery module structure before the temperature sensor is installed. This preliminary preparation ensures that the sensor has a predetermined safe pathway, eliminating the need for forceful insertion and preventing assembly errors during installation.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If the temperature sensor is continuously assembled by forcibly pushing it for mounting, then the mounting process can be completed, but the temperature sensor may cause assembling error or damage the battery cell

Engineering Contradiction:

Improvemounting process completionVSAvoidbattery cell damage

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The mounting groove acts as a cushioning structure that absorbs the insertion force during temperature sensor mounting. By providing this protective structure in advance, the patent prevents direct force transmission to the battery cells, avoiding damage while still enabling complete mounting.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS10629965B2Battery module, battery pack including such battery module, and vehicle including such battery pack

Publication Date: 2020.04.21 LG ENERGY SOLUTION LTD

AI summary

Disclosed is a battery module, which includes a battery cell assembly having a plurality of battery cells which are stacked one another, an interconnection board mounted to at least one side of the battery cell assembly to electrically connect the plurality of battery cells, a temperature sensor mounting groove provided at the interconnection board so that a temperature sensor for measuring a temperature of the battery cell assembly passes therethrough, and an assembling error preventer provided at a bottom of the temperature sensor mounting groove to prevent the temperature sensor from interfacing with a facing battery cell which faces the temperature sensor when the temperature sensor passes through the temperature sensor mounting groove.