Electric Vehicle Chassis as Integrated Heat Sink
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Solution Overview
Problem
Electric vehicle components, such as electric motors and motor controllers, generate less heat compared to internal combustion engines, making traditional radiator systems inefficient for heat dissipation, and existing cooling systems for electric vehicles are complex and prone to failure.
Innovation Solution
Circulating a coolant fluid around the electric motor and motor controller, with the motorcycle chassis acting as a heat sink to absorb and dissipate the heat, eliminating the need for a radiator system and reducing vehicle mass and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a traditional radiator system is used for heat dissipation in electric vehicles, then heat elimination capability is provided, but device complexity and vehicle mass increase
Solution Approach 1:
The patent extracts the radiator component from the cooling system and eliminates it entirely by using the chassis as a heat sink. The chassis structure itself is designed to absorb and dissipate heat from electric motor and motor controller, removing the need for a separate radiator system and its associated complexity
Solution Approach 2:
The chassis is given a dual function: it serves both as the structural framework of the vehicle and as a heat sink for thermal management. This multi-functionality eliminates the need for dedicated heat dissipation components, reducing overall system complexity
2Temperature
If a traditional radiator system is used for heat dissipation in electric vehicles, then heat elimination capability is provided, but vehicle mass increases
Solution Approach 1:
The chassis performs both structural support and heat dissipation functions simultaneously. By integrating the heat sink function into the existing chassis structure rather than adding a separate radiator system, the overall vehicle mass is reduced while maintaining adequate heat elimination capability
Solution Approach 2:
The radiator component is extracted and removed from the vehicle system. Since the chassis alone can handle the thermal load from electric motor and motor controller, eliminating the radiator reduces vehicle mass without compromising heat dissipation performance
3Temperature
If a complex coolant system is used for cooling electric motor and motor controller, then heat dissipation is achieved, but points of failure increase
Solution Approach 1:
The radiator and its associated complex coolant circulation system are extracted and removed. By using the chassis as a direct heat sink, the number of coolant system components is minimized, reducing points of failure and improving system reliability
Solution Approach 2:
The cooling function is merged with the chassis structure itself. Instead of having a separate, complex coolant system with multiple components, the chassis material and structure are utilized directly for heat dissipation, simplifying the system and reducing failure points
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 approach effectively manages heat dissipation in electric vehicles, reducing the risk of overheating, minimizing points of failure, and lowering overall vehicle mass by utilizing the chassis as a heat sink, thereby enhancing efficiency and handling characteristics.
Implementation Method 1
Fluid is circulated around an electric motor and motor controller of an electric vehicle to cool the electric motor and motor controller. The heat absorbed by the fluid is transferred to the chassis
Implementation Method 2
The heat absorbed by the fluid is transferred to the chassis of the electric motorcycle, which acts as a heat sink
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
A chassis for an electric vehicle is disclosed that functions as a heat sink to cool an electric motor and motor controller of the electric vehicle. The chassis includes one or more tubes that are connected to an inner surface of the chassis. As coolant fluid flows through the tubes, heat from the coolant is dissipated into the chassis.