Battery Pack Gasket Rib Structure for Reliable Waterproof Assembly

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional battery packs face issues with assembly errors and compromised waterproof performance due to the shape mismatch between gaskets and case components, leading to potential moisture and dust ingress.

Innovation Solution

A battery pack design featuring a gasket with ribs and protrusions that are strategically positioned along its length, made of elastic materials like rubber, to enhance assembly properties and ensure proper fitting, thereby improving waterproof and dustproof performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional gasket is forcibly fitted into a groove with shape mismatch, then assembly can be completed, but waterproof performance deteriorates due to improper assembly and gasket overlap

Engineering Contradiction:
Improveassembly propertyVSAvoidwaterproof performance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The gasket is designed with ribs at specific locations (first rib at the beginning, second rib at the end, and third rib at the middle portion) to provide localized structural support and alignment features. This local quality enhancement ensures proper positioning and prevents overlap, simultaneously improving both assembly ease and waterproof reliability

Inventive Principle:
Principle #3Local quality

2Area of stationary object

If the gasket width is greater than the groove width to ensure coverage, then sealing area is improved, but assembly precision deteriorates due to shape mismatch and overlapping

Engineering Contradiction:
Improvesealing areaVSAvoidassembly precision
Core Design Contradiction:
Area of stationary objectVSManufacturing precision

Solution Approach 1:

The gasket incorporates ribs at specific locations (first rib at the beginning, second rib at the end, and third rib at the middle portion) to provide localized structural support and alignment features. This local quality enhancement ensures proper positioning and prevents overlap, simultaneously improving both assembly ease and waterproof reliability

Inventive Principle:
Principle #3Local quality

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 rib and protrusion design facilitates intuitive assembly verification and enhances sealing efficiency, preventing moisture and dust ingress while ensuring reliable assembly and improved cooling performance.

Implementation Method 1

a gasket that is arranged in a groove of the case plate located in correspondence to the edge of the case plate, wherein the case plate comprises a first side surface plate covering both side surfaces of the plurality of battery modules, and a second side surface plate covering the front and rear surfaces of the plurality of battery modules, and wherein the gasket includes a rib

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS20240380045A1Battery pack and device including the same
Publication Date: 2024.11.14 LG ENERGY SOLUTION LTD
  • US20240380045A1 patent drawing
  • US20240380045A1 patent drawing
  • US20240380045A1 patent drawing

AI summary

A battery pack includes a plurality of battery modules; a case cover covering the plurality of battery modules, and a case plate coupled to an edge of the case cover; and a gasket in a groove of the case plate located in correspondence to an edge of the case plate. The case plate comprises a first side surface plate covering both side surfaces of the plurality of battery modules, and a second side surface plate covering the front and rear surfaces of the plurality of battery modules. The gasket includes a rib.