E-Compressor Mounting Sleeve Integrated With Gearbox-Side Motor Support
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Solution Overview
Problem
The bulkiness and interference issues of electric compressors (e-compressors) with the electric machine's gearbox and filtration system in hybrid vehicles necessitate a more efficient mounting solution that reduces size and maintains vibration performance.
Innovation Solution
A mounting sleeve extending from the compressor to the gearbox side, integrated with the reducer, and transverse mounting lugs on the compressor and reducer for secure attachment, allowing the compressor to be positioned without degrading vibration performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the compressor is mounted on the electric motor, then the filtration system can be utilized, but the compressor becomes bulky and cannot be integrated onto engines
Solution Approach 1:
The mounting sleeve is integrated directly into the compressor body structure, merging the mounting function with the compressor housing. This eliminates the need for separate mounting brackets and reduces overall compressor size while maintaining integration capability with the electric motor.
Solution Approach 2:
The compressor mounting system is designed to serve multiple functions: it provides structural support for the compressor, integrates with the electric motor's filtration system, and maintains compact dimensions. The mounting sleeve acts as both a structural component and a mounting interface.
2Strength
If the second support is used on the gearbox side, then sufficient rigidity is achieved, but the fixing points require sufficient spacing that conflicts with compressor mounting
Solution Approach 1:
The support system is divided into two independent parts: the original second support for the electric machine and the new mounting sleeve integrated into the compressor. This segmentation allows each component to be optimized for its specific function without interfering with the other, enabling both rigidity and mounting flexibility.
Solution Approach 2:
The mounting sleeve acts as an intermediary element between the compressor and the gearbox side mounting points. It provides the necessary mounting interface while maintaining the required spacing for the second support, thus mediating between the conflicting requirements of rigidity and mounting flexibility.
3Ease of operation
If the compressor is attached to the gearbox side of the electric machine, then mounting is achieved, but it causes interference with the second support of the electric machine
Solution Approach 1:
The mounting function is extracted from the electric machine's second support and relocated to the compressor body through the integrated mounting sleeve. This extraction eliminates the interference between the compressor and the second support, as the mounting points are now part of the compressor structure rather than the electric machine support system.
Data Source
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AI summary
A motor vehicle (1) comprising at least one electrical machine (3) extending along a transverse axis (Y) between two longitudinal members (2), said electrical machine (3) comprising a drive shaft integral with a gearbox (6), the motor vehicle further comprising a compressor (10) of an air conditioning system extending along a longitudinal axis (X) perpendicular to the transverse axis (Y). The compressor (10) comprises a mounting sleeve (7) extending vertically from an external cylindrical surface (10a) of the compressor (10) towards the longitudinal member (2) on the gearbox (6) side and forming a support for the electrical machine (3) on the gearbox (6) side.