Battery Pack Base Plate Layout to Protect High-Voltage Connections
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Solution Overview
Problem
The existing battery pack structures in electric vehicles are prone to damage during collisions, as the electrical connection components, especially high-voltage components, can be crushed or deformed, leading to safety issues and connectivity failures.
Innovation Solution
A battery pack design where the electrical connection components, including high-voltage harnesses, are housed in a holding portion within the base plate, positioned below the battery modules, providing protection and reducing the risk of damage during deformations, while also allowing for miniaturization and efficient cooling through integrated coolant channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electrical connection component is configured in a gap between the battery modules to reduce battery pack size, then the battery pack size is reduced, but the electrical connection component is vulnerable to damage during collisions
Solution Approach 1:
The patent repositions the electrical connection component from a horizontal gap between battery modules to a vertical position below the battery modules, housed within the base plate. This dimensional change allows the component to be protected by the base plate structure while maintaining compact overall packaging of the battery pack.
Solution Approach 2:
The electrical connection component is nested within the base plate structure, specifically housed in a holding portion formed by the base plate. This nesting approach integrates the electrical connection component into the existing base plate, providing protection while minimizing additional space requirements.
2Reliability
If the electrical connection component is positioned below the battery module to protect it during collisions, then the safety is improved, but the height dimension may increase
Solution Approach 1:
The patent combines the electrical connection component housing with the base plate structure by forming a holding portion within the base plate itself. This merging eliminates the need for separate protective housings and utilizes the existing base plate thickness, thereby avoiding additional height increase while providing protection.
Solution Approach 2:
The base plate serves multiple functions: it provides structural support for the battery modules, contains coolant channels for thermal management, and houses the electrical connection component through its holding portion. This multi-functionality allows integration of the electrical connection component without requiring additional space or increasing overall height.
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
This design enhances the safety and reliability of the battery pack by preventing damage to electrical connection components, reduces the overall height of the battery pack, and facilitates compactness, ensuring effective energy transmission and cooling.
Implementation Method 1
the base plate is equipped with a coolant channel
Implementation Method 2
the battery module and the electrical connection component can be easily cooled simultaneously by the coolant
Data Source
AI summary
A battery pack and a vehicle with the battery pack that can improve safety are provided in the present invention. The battery pack includes a housing, which includes a base plate provided with a holding portion; a battery module arranged above the base plate; and an electrical connection component, which is electrically connected with the battery module and is accommodated in the holding portion. In this way, for example, when the vehicle is impacted, the risk of the battery module moving and thereby impacting or squeezing the electrical connection components can be suppressed, and the safety of the battery pack and the vehicle can be improved.