Battery Pack Cover-Mounted Management Device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Lithium-ion battery cells in electric vehicle battery packs face reduced service life due to exposure to unusual conditions, such as high temperatures, necessitating effective monitoring and control mechanisms.
Innovation Solution
A battery pack design featuring a battery management device integrated into or on the cover of each module, which is protected when closed and accessible for maintenance, allowing for real-time monitoring and control of multiple battery cells, including voltage, current, and temperature measurements, with integrated charging and data transmission capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery management device is permanently installed inside the housing, then the protection against external influences is improved, but the accessibility for maintenance and repair is worsened
Solution Approach 1:
The battery management device is mounted on a cover that can be removed, transforming the installation from a fixed permanent state to a dynamic removable state. This allows the device to be accessible when the cover is removed while being protected when the cover is closed, resolving the contradiction between protection and accessibility.
2Ease of repair
If the battery management device is made removable for maintenance, then the ease of repair is improved, but the reliability of connection and protection is worsened
Solution Approach 1:
The cover acts as an intermediary carrier that holds the battery management device. The device is connected to the cover (which can be done reliably with screws or other fastening means), and the cover itself is connected to the housing. This intermediary structure allows reliable connection while maintaining removability for maintenance.
Data Source
Figure 1a~1b
Figure 1c~1d
Figure 1e~1f
AI summary
The pack has a battery module (100) comprising a housing (105) for accommodating a set of battery cells (160). The module comprises a battery management device (110) that is provided for controlling and/or monitoring the battery cells in the housing. The module comprises a cover for closing the housing. A charge level indicator is arranged at and/or in the cover of the housing. The management device is arranged in and/or at the cover, such that the management device is arranged in the housing when the cover is closed and released from the housing when the cover is opened.