Battery Mounting Box Venting Structure With Integrated Support Ribs

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Solution Overview

Problem

Existing battery mounting boxes have complex structures due to the need for precise alignment of components, leading to increased weight and complicated installation processes.

Innovation Solution

A battery mounting box design featuring a pressure relief hole and supporting ribs that form a pressure relief cavity between the tray and the bottom plate, allowing gas discharge through the hole, simplifying installation and reducing weight by eliminating the bottom bracket.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a bottom bracket is provided in the box body to support the tray, then the tray can be supported, but the structure becomes complicated and weight increases

Engineering Contradiction:
Improvesupport capabilityVSAvoidstructure complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent merges the bottom bracket and tray into a single integrated supporting structure. The tray itself is designed with supporting ribs that directly extend from its bottom surface to support the battery module, eliminating the need for a separate bottom bracket. This integration reduces the number of components and simplifies the overall structure while maintaining the required support capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The tray is designed to perform multiple functions: it not only holds the battery module but also provides structural support through its integrated supporting ribs. The supporting ribs are formed as an integral part of the tray, allowing the tray to serve both as a container and a support structure, thereby reducing the need for additional components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Strength

If a bottom bracket is provided in the box body to support the tray, then the tray can be supported, but the installation process becomes complicated

Engineering Contradiction:
Improvesupport capabilityVSAvoidinstallation ease
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

By integrating the supporting ribs directly into the tray structure, the patent eliminates the need for separate assembly steps involving a bottom bracket. The supporting ribs are formed as an integral part of the tray during manufacturing, which significantly simplifies the installation process. During installation, only the tray needs to be placed into the box body, and it automatically provides the required support.

Inventive Principle:
Principle #5Merging (Combining)

3Strength

If multiple components are provided in the box body, then the support function is achieved, but the weight of the box body increases

Engineering Contradiction:
Improvesupport functionVSAvoidbox body weight
Core Design Contradiction:
StrengthVSWeight of stationary object

Solution Approach 1:

The patent combines the tray and supporting ribs into a single integrated component, reducing the total number of parts. This integration eliminates the weight of the separate bottom bracket while maintaining the necessary support function. The supporting ribs are formed from the same material as the tray, optimizing the use of materials and reducing overall weight.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The tray is designed to serve multiple purposes: it contains the battery module and simultaneously provides structural support through its integrated ribs. This multi-functionality reduces the need for additional support components, thereby reducing the overall weight of the box body while maintaining adequate support capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Ease of operation

If the tray is directly mounted in the box body, then installation is simplified, but pressure relief is compromised

Engineering Contradiction:
Improveinstallation simplicityVSAvoidpressure relief capability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent integrates the pressure relief cavity directly into the supporting structure of the tray. The supporting ribs are designed to form a cavity between themselves and the box body, which serves as a pressure relief chamber. This integration ensures that the pressure relief function is built into the supporting structure, maintaining both installation simplicity and pressure relief reliability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent utilizes the space between the supporting ribs and the box body to create a pressure relief cavity. By designing the supporting ribs with specific geometry and spacing, a three-dimensional cavity is formed that can accommodate pressure relief operations. This approach adds a functional dimension to the supporting structure without complicating the installation process.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 design simplifies the installation process, reduces weight, and effectively manages thermal runaway by discharging gas through a pressure relief hole, enhancing safety and efficiency.

Implementation Method 1

a pressure relief cavity is formed between the tray and the bottom plate, and the pressure relief cavity and the pressure relief hole are in communication such that gas is capable of discharging through the pressure relief hole

Methodology Applied
Scientific EffectPressure relief: Pressure Increase

Data Source

PatentEP4439840A1Battery mounting box and battery pack
Publication Date: 2024.10.02 EVE ENERGY CO LTD
  • EP4439840A1 patent drawingFigure 1~2
  • EP4439840A1 patent drawingFigure 3~4
  • EP4439840A1 patent drawingFigure 5~6

AI summary

A battery mounting box is provided and includes a body provided with a pressure relief hole; a supporting structure provided in the body and configured to support a battery module. The supporting structure includes a tray and at least one supporting rib provided at a bottom of the tray. The at least one supporting rib is configured to support between the tray and a bottom plate of the body such that a pressure relief cavity is formed between the tray and the bottom plate. The pressure relief cavity and the pressure relief hole are in communication such that gas is capable of discharging through the pressure relief hole.