Front EV Thermal Layout to Shield Trunk Cargo From Motor Heat
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Solution Overview
Problem
In electric vehicles, heat generated by components such as the motor can be transferred to the trunk box, potentially affecting the cargo stored there, as there is no engine to dissipate this heat.
Innovation Solution
The integration of a thermal integration unit between the motor and the trunk box, utilizing a heat transfer medium to manage and dissipate heat generated by the motor and other components, ensuring it does not reach the cargo.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the motor and power controller are integrated in the front compartment, then the vehicle structure is simplified and space is optimized, but heat generated by the motor transfers to the trunk box affecting cargo
Solution Approach 1:
The patent introduces a thermal insulation barrier and heat dissipation channels as intermediary structures between the motor and the trunk box. These intermediaries block and redirect heat flow, preventing thermal energy from reaching the cargo while maintaining the integrated motor-power controller configuration in the front compartment.
Solution Approach 2:
The patent extracts the heat management function from the integrated motor assembly by implementing separate heat dissipation pathways and insulation layers. This allows the thermal management system to independently handle heat removal without compromising the integrated structural design.
2Volume of moving object
If components are arranged forward of the passenger compartment, then space utilization is improved, but heat from these components affects the trunk box
Solution Approach 1:
The patent places thermal insulation barriers and heat dissipation structures as intermediary elements between the front-mounted components and the trunk box. These intermediaries create thermal separation zones that block heat transfer while preserving the compact front-compartment layout for optimal space utilization.
Solution Approach 2:
The patent implements heat management in the vertical dimension by introducing insulation layers and air gaps between components and the trunk box. This dimensional approach to thermal separation allows horizontal space optimization while controlling temperature through vertical thermal barriers.
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
Effectively limits the transfer of heat from the motor and other heat sources to the trunk box, maintaining the cargo at a suitable temperature and reducing thermal interference.
Implementation Method 1
utilizing a heat transfer medium to manage and dissipate heat generated by the motor and other components
Data Source
Figure 1~2
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AI summary
An electric vehicle includes a motor configured to drive a front wheel using power of a battery, a power controller configured to supply power from the battery to the motor, an integrated electromechanical unit integrating the motor and the power controller, a thermal integration unit in which multiple components are connected and integrated with each other by to a pipe through which a heat transfer medium flows, and a trunk box. The battery is arranged under a floor of a passenger compartment. The motor, the power controller, the thermal integration unit, and the trunk box are arranged forward of the passenger compartment. The trunk box, the thermal integration unit, and the motor are arranged sequentially from front of a vehicle. The thermal integration unit is arranged between the trunk box and the motor.