Motor Vehicle Battery Integrated Guide Element Design
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Solution Overview
Problem
Existing motor vehicle batteries face challenges in achieving a compact design due to the space requirements for degassing channels and battery module control devices, which hinder their installation in limited spaces.
Innovation Solution
The battery design features degassing breaking points offset towards the inside relative to connection poles, forming a recess that houses a guide element which defines both a degassing channel and an accommodation space for the control device, allowing for a compact and integrated setup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate degassing channels and control devices are installed for each battery module, then reliable degassing function is ensured, but the battery module size increases and compact design becomes difficult
Solution Approach 1:
The patent combines the degassing channel and control device into a single integrated guide element. The guide element includes a recess that houses the control device and forms the degassing channel, eliminating the need for separate components. This merging reduces the overall space required while maintaining both the degassing function and control capabilities.
Solution Approach 2:
The guide element serves multiple functions simultaneously: it provides structural support for the battery cells, houses the control device, forms the degassing channel, and guides the breaking points. This multi-functionality allows a single component to replace what would traditionally require multiple separate parts, achieving compact design without sacrificing reliability.
2Ease of operation
If degassing breaking points are positioned near connection poles, then easy access for degassing is achieved, but sufficient space for control devices and channels is reduced
Solution Approach 1:
The control device is nested within the recess of the guide element, which itself is positioned in the battery module structure. The degassing channel is formed within the same guide element structure. This nesting arrangement allows the control device to be housed within the existing structural footprint rather than requiring additional external space.
Data Source
AI summary
A motor vehicle battery has at least one battery module with a plurality of battery cells (11) that have connection poles and degassing predetermined breaking points (14). The battery module also has a common battery module control device (19) for all of the battery cells (11) of the battery module. The degassing predetermined breaking points (14) of the battery cells (11) are on one side of the battery module and are offset inward in relation to the connection poles of the battery cells to form a recess (15). A guide element (16) is positioned in the recess (15) and extends along all of the battery cells (11) of the respective battery module to define a degassing channel (17) on one side and defining an accommodation space (18) for the battery module control device (19) on the other side.