Vehicle Drive Cover Layout for Compact Boost Connector Integration
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Solution Overview
Problem
Existing electric drive systems face challenges in high-voltage, high-current environments due to the need for a boost connector that is either remotely installed, increasing system volume, or difficult to integrate with the electrical connector and parking lock mechanism, compromising safety and efficiency.
Innovation Solution
The boost connector is positioned at the drive end of the electric motor, utilizing a hollow positioning shaft and sealing members to ensure compact, reliable, and sealed installation, integrating with the electrical connector and transmission without disrupting the parking lock mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the boost connector is installed at the non-drive end of the electric motor, then the installation position is remote from the electrical connector, but this results in increased system volume and less compact structure
Solution Approach 1:
The patent inverts the conventional installation location from the non-drive end to the drive end of the electric motor. This inversion allows the boost connector to be positioned closer to the electrical connector, reducing the required space and making the structure more compact while maintaining installation feasibility through the hollow positioning shaft.
2Volume of moving object
If the boost connector is installed at the drive end of the electric motor, then the structure is more compact, but the connector must pass through the transmission which complicates the installation due to the electrical connector and parking lock mechanism positions
Solution Approach 1:
The patent applies the nesting principle by having the boost connector pass through the hollow positioning shaft, which is itself positioned within the transmission assembly. This nested arrangement allows the boost connector to be installed at the drive end while utilizing the existing hollow positioning shaft structure, thereby reducing installation complexity and avoiding interference with the electrical connector and parking lock mechanism.
3Ease of operation
If the boost connector passes through the transmission cover, then it can be connected to the electrical connector, but this may compromise the sealing of the drive system
Solution Approach 1:
The patent introduces a sealing ring as an intermediary element between the boost connector and the transmission cover. This sealing ring mediates the connection, allowing the boost connector to pass through the cover for electrical connectivity while maintaining the sealing integrity of the drive system, thus resolving the conflict between connector accessibility and sealing reliability.
Data Source
AI summary
A drive system for a vehicle, and a vehicle. The drive system includes a housing, containing an electric motor of the drive system, and a cover fixed to the housing and formed with a cavity accommodating a transmission of the drive system A boost connector passes through the cover and extending into the housing, and is electrically connected to an electrical connector of the electric motor.