Vehicle Drive Unit Boost Connector Layout for Compact Sealed Integration
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Solution Overview
Problem
Existing electric drive systems in new energy vehicles face challenges in compactness, installation convenience, sealing reliability, and safety due to the remote placement of boost connectors from the electric motor's electrical connectors, which increases system volume and complicates installation.
Innovation Solution
The drive system incorporates a boost connector arranged at the drive end of the electric motor, passing through a hollow positioning shaft and a cover, which is structurally compact, easy to install, well-sealed, and highly reliable, while maintaining the existing structure's layout without affecting 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 is simpler, but the system volume increases and the structure becomes less compact
Solution Approach 1:
The patent changes the spatial dimension by moving the boost connector installation from the non-drive end (remote location) to the drive end (near the electrical connector). This dimensional repositioning allows the connector to pass through the transmission cover and positioning shaft, achieving compact integration without increasing system volume.
2Volume of moving object
If the boost connector is installed at the drive end of the electric motor, then the structure becomes more compact, but the installation becomes more difficult due to transmission components
Solution Approach 1:
The positioning shaft is designed with dual functionality: it serves both as a structural component for the parking lock mechanism and as a passage for the boost connector. This multi-functionality allows the connector to pass through the transmission area without interfering with the parking lock, simplifying installation while maintaining compact structure.
Solution Approach 2:
The transmission cover acts as an intermediary structure that facilitates the passage of the boost connector from the drive end through the transmission area to the electrical connector. The cover's design with appropriate openings and the positioning shaft as a guide path mediate the connection process, making installation feasible despite the complex transmission environment.
3Ease of operation
If the boost connector passes through the transmission, then the connector can reach the electrical connector, but the parking lock mechanism layout is compromised
Solution Approach 1:
The positioning shaft serves dual purposes: it is both a structural element for the parking lock mechanism and a passage for the boost connector. This multi-functionality allows the connector to be routed through the transmission area without compromising the parking lock layout, as the shaft's design accommodates both functions simultaneously.
Data Source
Figure 1~2
Figure 3
AI summary
The present disclosure provides a drive system for a vehicle, and a vehicle. The drive system comprises: a housing, containing an electric motor of the drive system; a cover, fixed to the housing and formed with a cavity accommodating a transmission of the drive system; and a boost connector, passing through the cover and extending into the housing, and electrically connected to an electrical connector of the electric motor.