Drive System Housing With Integrated Stator-Transmission Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing drive system housings for electric and hybrid vehicles require separate cooling circuits for the stator and transmission, leading to increased material and space requirements.
Innovation Solution
A housing design with a single cooling circuit that fluidically connects coolant channels for both the stator and transmission, allowing coolant to flow through a network of channels to efficiently cool both components without additional material or space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate cooling circuits are used for stator and transmission, then each component can be cooled effectively, but additional material and space are required
Solution Approach 1:
The patent combines separate cooling circuits for the stator and transmission into a single integrated cooling circuit. The coolant flows through a first coolant channel around the stator and then through a second coolant channel through the transmission housing, allowing both components to be cooled by one circuit instead of requiring separate circuits, thereby reducing material and space requirements while maintaining cooling effectiveness
Solution Approach 2:
The single cooling circuit is designed to serve multiple functions: it cools both the stator and the transmission through different coolant channels. The coolant performs dual cooling duties by circulating through the first channel around the stator and then through the second channel through the transmission, making the cooling system universal rather than dedicated to a single component
2Quantity of substance
If a single cooling circuit is used for both stator and transmission, then material and space requirements are reduced, but the complexity of the cooling channel configuration increases
Solution Approach 1:
The cooling circuit is segmented into distinct coolant channels: a first coolant channel for the stator and a second coolant channel for the transmission. This segmentation allows the complex cooling requirements of different components to be addressed separately within each channel while being part of an integrated system, managing complexity through structured division of the cooling path
3Quantity of substance
If the first coolant channel is fluidically connected to the second coolant channel, then a single cooling circuit can cool both stator and transmission, but the sealing requirements between housing portions increase
Solution Approach 1:
The transmission housing acts as an intermediary component that contains the second coolant channel and connects to the first coolant channel. This intermediary structure allows the cooling circuit to transition from the stator cooling path to the transmission cooling path while providing a defined interface for sealing, managing the complexity of fluidic connection between different housing portions
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 enables effective cooling of both the stator and transmission using a single cooling circuit, reducing the need for additional material and space while maintaining efficient heat dissipation.
Implementation Method 1
a first coolant channel for cooling the stator is formed in or on the first housing portion, wherein a second coolant channel for cooling the transmission arrangement is formed in or on the second housing portion
Data Source
AI summary
The invention relates to a housing for drive system, in particular for a motor vehicle, comprising: a first housing portion for receiving a stator of the drive system; and a second housing portion for receiving a transmission arrangement, a first coolant channel for cooling the stator being formed in or on the first housing portion, and a second coolant channel for cooling the transmission arrangement being formed in or on the second housing portion, and the first coolant channel being fluidically connected to the second coolant channel such that a coolant can be conducted through the first coolant channel into the second coolant channel.