Vehicle Floor Battery Cooling Layout With Integrated Radiator
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Solution Overview
Problem
The existing vehicle cooling structures face challenges in mountability and collision performance when upsizing battery units in electric vehicles, leading to elongated coolant pipes and potential aerodynamic losses.
Innovation Solution
A vehicle cooling structure with a heat exchanger integrated near the power supply portion, utilizing introduction holes on the vehicle's bottom face for external air exchange, and optionally featuring shutter fins and inclination control to optimize cooling efficiency and aerodynamics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the battery unit is upsized and placed in the vehicle floor portion, then the power supply capacity is increased, but the coolant pipe length is elongated which deteriorates mountability
Solution Approach 1:
The heat exchanger is integrated with the battery unit as a single component rather than separate parts. The heat-exchanging portion is formed directly on the battery case, merging the cooling function into the battery structure itself, which eliminates the need for separate coolant pipes and improves mountability
2Temperature
If the heat exchanger is placed far from the power supply portion, then cooling coverage is improved, but the coolant pipe length increases which worsens mountability
Solution Approach 1:
The heat exchanger is merged with the battery unit structure, positioned adjacent to the power supply portion. The heat-exchanging portion is formed on the battery case surface, enabling efficient heat transfer from the power supply while maintaining compact integration that improves mountability
3Temperature
If additional heat exchangers are provided for multiple components, then cooling performance is improved, but device complexity increases
Solution Approach 1:
The heat exchanger is designed as a multi-functional component that can cool multiple parts including the battery and motor. The heat-exchanging portion is positioned to facilitate heat transfer from various power supply components through the coolant circulating in the battery unit, eliminating the need for separate heat exchangers
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 improves mountability, reduces the need for additional heat exchangers and coolant pipes, enhances collision protection, and maintains aerodynamic performance by efficiently exchanging heat regardless of the vehicle's direction.
Implementation Method 1
a heat-exchanging portion formed into a wall shape and configured to perform heat-exchange between coolant for cooling down the power supply portion and external air
Implementation Method 2
heat-exchange between coolant and external air taken in through introduction holes provided on a bottom face of the vehicle
Implementation Method 3
coolant for cooling down the power supply portion
Data Source
AI summary
A battery provided in a vehicle and configured to supply electric power is cooled down by coolant the heat of which is exchanged with the heat of external air by a radiator. The radiator is provided near the battery and performs heat-exchange between the coolant and the external air taken in through introduction holes provided on a bottom face of the vehicle. Thus, even in a case where the radiator is provided in a vehicle floor portion so that the battery is upsized, it is possible to restrain a coolant pipe from being elongated. This accordingly makes it possible to improve mountability to the vehicle.