Battery Pack Mounting Structure for Compact Module Fixation

Solution Overview

Problem

Conventional battery packs face challenges in achieving a compact structure and high energy density due to the need for additional mounting space and structures like separate mounting plates, which increase weight and reduce energy efficiency.

Innovation Solution

A battery pack design featuring a pack housing that supports multiple battery modules with mounting units, including pressing bars and bolts, which securely fasten the modules without additional space, enhancing stability and eliminating the need for separate mounting plates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If separate mounting plates and additional mounting space are provided to fix battery modules, then the battery modules can be securely fixed to the pack housing, but the energy density of the battery pack is reduced and the weight of the battery pack is increased

Engineering Contradiction:

Improvefixation stabilityVSAvoidenergy density

Core Design Contradiction:

Stability of the object's compositionVSQuantity of substance

Solution Approach 1:

The mounting units are integrated directly into the pack housing structure, merging the housing and mounting functions into a single component. This eliminates the need for separate mounting plates and reduces the overall mounting space required, thereby improving energy density without compromising fixation stability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The pack housing serves multiple functions: it provides structural enclosure for the battery modules and simultaneously acts as the mounting structure through integrated mounting units. This multi-functionality eliminates the need for dedicated separate mounting components, reducing weight and improving energy density while maintaining secure fixation

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Stability of the object's composition

If separate mounting plates and additional mounting space are provided to fix battery modules, then the battery modules can be securely fixed to the pack housing, but the weight of the battery pack is increased

Engineering Contradiction:

Improvefixation stabilityVSAvoidbattery pack weight

Core Design Contradiction:

Stability of the object's compositionVSWeight of stationary object

Solution Approach 1:

The mounting units are integrated directly into the pack housing structure, merging the housing and mounting functions into a single component. This eliminates the need for separate mounting plates and reduces the overall mounting space required, thereby improving energy density without compromising fixation stability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The pack housing serves multiple functions: it provides structural enclosure for the battery modules and simultaneously acts as the mounting structure through integrated mounting units. This multi-functionality eliminates the need for dedicated separate mounting components, reducing weight and improving energy density while maintaining secure fixation

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Stability of the object's composition

If a conventional battery pack structure with separate mounting plates is used, then the battery modules can be fixed, but the structure becomes more complex and occupies more space

Engineering Contradiction:

Improvemodule fixationVSAvoidstructure complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The mounting units are integrated directly into the pack housing structure, merging the housing and mounting functions into a single component. This eliminates the need for separate mounting plates and reduces the overall mounting space required, thereby improving energy density without compromising fixation stability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The pack housing serves multiple functions: it provides structural enclosure for the battery modules and simultaneously acts as the mounting structure through integrated mounting units. This multi-functionality eliminates the need for dedicated separate mounting components, reducing weight and improving energy density while maintaining secure fixation

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12609395B2Battery pack and vehicle including same

Publication Date: 2026.04.21 LG ENERGY SOLUTION LTD

AI summary

Discussed is a battery pack that can include a plurality of battery modules each including at least one battery cell, a pack housing supporting the plurality of battery modules, and a plurality of mounting units coupled to the pack housing, located between the plurality of battery modules, and configured to press the plurality of battery modules toward the pack housing.