Vehicle Power Supply Layout for Battery Cooling Without Rear Seat Intrusion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In vehicle power supply systems, large battery packs with high capacity often protrude into the rear seat area when arranged with a fan below the front seat, reducing rear seat space.
Innovation Solution
The vehicle power supply system is designed with the battery pack arranged below a pair of left and right front seats, and the fan positioned above the battery pack between the seats. Additionally, a service disconnect switch is placed below one of the front seats, and a converter is located in front of the battery pack, all connected by ducts to optimize space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a large battery pack with high capacity is arranged with a fan below the front seat, then the battery cooling function is improved, but the battery pack may protrude to the rear seat side, reducing rear seat space
Solution Approach 1:
The patent applies dimensional change by moving the fan from a horizontal arrangement (below the front seat) to a vertical arrangement (above the battery pack). This vertical placement allows the battery pack to be positioned more forward under the front seat, preventing protrusion into the rear seat area while maintaining cooling effectiveness through the duct connection.
2Volume of moving object
If a battery pack is arranged to fit below the front seat, then space utilization is improved, but the fan may be forced to protrude to the rear seat side
Solution Approach 1:
The fan is relocated from a horizontal position to a vertical position above the battery pack. This dimensional change allows the battery pack to fit completely below the front seat without encroaching on rear seat space, while the fan's vertical placement above the battery pack eliminates the need for the fan to protrude to the rear.
Solution Approach 2:
A duct is introduced as an intermediary component to connect the fan (positioned above the battery pack) with the battery pack cooling area. This duct serves as a mediator that transfers cooling air from the fan to the battery pack, enabling the separated spatial arrangement while maintaining the cooling function.
3Quantity of substance
If components are arranged to protrude to the rear seat side, then battery pack capacity can be increased, but the rear seat side will have less space
Solution Approach 1:
The fan is repositioned from a horizontal arrangement to a vertical arrangement above the battery pack. This dimensional change enables the battery pack to be positioned forward under the front seat with maximum capacity, preventing any component from protruding into the rear seat area.
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 allows the components of the vehicle power supply system to be arranged under the floor without narrowing the space on the rear seat side, enhancing space efficiency and cooling efficiency by minimizing duct length and pressure loss.
Implementation Method 1
a fan is arranged above the battery pack and between the pair of left and right front seats
Implementation Method 2
a converter is arranged in front of the battery pack
Data Source
AI summary
A vehicle power supply system includes a battery pack arranged below a pair of right and left front seats, and a service disconnect switch arranged below one front seat of the pair of right and left front seats. The vehicle power supply system includes a DC/DC converter arranged in front of the battery pack, and a cooling fan arranged above the battery pack and between the pair of right and left front seats.