Sleeve Member Coolant Jacket for Electric Machine Heat Dissipation
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Solution Overview
Problem
Existing electric machine modules face challenges in effectively cooling components like stator assemblies and rotors, leading to reduced performance and lifespan due to inadequate heat dissipation methods.
Innovation Solution
The electric machine module incorporates a sleeve member coupled to a stator assembly and a canister with a coolant jacket defined between the sleeve member and the canister, allowing for efficient heat removal through coolant circulation, which includes features to enhance turbulence and heat transfer surface area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cooling methods are used for electric machine components, then the structure remains simple, but heat dissipation effectiveness is insufficient leading to reduced performance and lifespan
Solution Approach 1:
The cooling system is merged with the housing structure by defining the coolant jacket between the sleeve member and the canister, combining structural support and cooling functions into a single integrated design, thereby improving reliability without proportionally increasing device complexity
Solution Approach 2:
The sleeve member serves multiple functions: it provides structural support for the stator assembly, defines the coolant jacket for heat dissipation, and contributes to the overall housing structure, allowing a single component to address multiple requirements including cooling effectiveness and structural integrity
2Temperature
If coolant circulation is implemented through the module housing, then heat dissipation improves, but the manufacturing complexity increases
Solution Approach 1:
The coolant jacket is defined by the geometric relationship between the sleeve member and canister during assembly, with coolant flow paths and turbulence-enhancing features built into the design from the outset, eliminating the need for post-assembly modifications or complex manufacturing processes
Solution Approach 2:
The design utilizes the spatial parameters and dimensional relationships between the sleeve member and canister to create an effective coolant jacket, optimizing heat transfer surface area and coolant flow characteristics through geometric configuration rather than additional manufacturing complexity
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 configuration significantly improves heat dissipation, increasing the performance and lifespan of electric machine components by effectively circulating coolant to remove heat generated during operation.
Implementation Method 1
a coolant jacket can be defined by at least a portion of the sleeve member and at least a portion of the stator assembly
Implementation Method 2
efficient heat removal through coolant circulation
Data Source
AI summary
Embodiments of the invention provide an electric machine module including a module housing. The module housing can include a sleeve member coupled to at least one end cover and can define a machine cavity. In some embodiments, the sleeve member can include an inner perimeter and can be coupled to a stator assembly of an electric machine. In some embodiments, the electric machine can be positioned within the machine and at least partially enclosed by the module housing. In some embodiments, a coolant jacket can be defined by at least a portion of the sleeve member and at least a portion of the stator assembly.