Vehicle Battery Interface Box for High-Density Cell Arrangement
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Solution Overview
Problem
Existing vehicle battery devices face challenges in efficiently arranging a large number of battery cells at high density and easily connecting them to the outside, while maintaining compactness and ensuring reliable connections and temperature control.
Innovation Solution
A vehicle battery device design featuring a battery cell mounting part with laminated battery cells and an interface box that integrates connection functions, allowing easy expansion of battery cells, compact configuration, and simplified external connections, with a positioning mechanism and temperature control solution passage for efficient heat management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a large number of battery cells are arranged in the battery device to meet high power requirements, then the power output is improved, but the device complexity and space utilization become problematic
Solution Approach 1:
The battery device is divided into multiple battery cell mounting parts, each accommodating a battery cell group. This segmentation allows the system to scale power capacity by adding modular units rather than managing a single complex assembly, thereby improving power output while maintaining manageable device complexity through standardized modules.
Solution Approach 2:
The interface box serves multiple functions: it provides connection terminals for external connections, houses the control unit for battery management, and facilitates communication between battery cell groups. This multi-functionality consolidates what would otherwise be separate components, improving power capacity without proportionally increasing device complexity.
2Quantity of substance
If a large number of battery cells are arranged at high density in limited space, then the power capacity is improved, but the ease of connection and maintenance deteriorates
Solution Approach 1:
Battery cells are grouped into modular battery cell groups, each with its own mounting part and connection interface. This segmentation enables high-density arrangement of multiple groups while maintaining ease of connection through standardized interfaces on the interface box, allowing modules to be connected or maintained independently without accessing individual cells.
Solution Approach 2:
The interface box acts as an intermediary between the battery cell groups and external systems. It provides connection terminals that simplify external connections and houses a control unit that manages communication and power distribution, thereby enabling high cell density while maintaining operational ease through centralized interface management.
3Ease of operation
If the interface box integrates connection functions between battery cell mounting part and outside, then the ease of connection is improved, but the device complexity increases
Solution Approach 1:
The interface box merges multiple functions into a single integrated component: connection terminals for external wiring, control unit housing for battery management, and communication interfaces between battery cell groups. This consolidation improves ease of connection by providing a unified interface point while managing device complexity through functional integration rather than proliferation of separate components.
4Volume of stationary object
If battery cells are arranged in laminated configuration, then the space utilization is improved, but the temperature control and heat management become more challenging
Solution Approach 1:
Laminated battery cells are organized into discrete battery cell groups with dedicated mounting parts. This segmentation creates natural thermal zones that can be independently managed, allowing efficient space utilization through lamination while simplifying temperature control by treating each group as a manageable thermal unit with access to cooling channels in the mounting structure.
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
Enables easy increase in the number of battery cells, high-density arrangement, and straightforward external connections, while enhancing durability and temperature control efficiency, and protecting the battery cells from external loads.
Implementation Method 1
a temperature control solution passage 36 for circulating a temperature control solution
Data Source
AI summary
Provided is a vehicle battery device in which number of battery cells can be easily increased, a large number of battery cells can be arranged at high density, and connection with the outside can also be easily performed. The vehicle battery device includes: a battery cell mounting part accommodating a battery cell group constituted by a plurality of laminated battery cells; and an interface box integrating connection functions between the battery cell mounting part and the outside, wherein the battery cell mounting part is connected to at least one of two opposing side surfaces in an outer surface of the interface box; and the interface box has, on any outer surface other than the side surface connected with the battery cell mounting part, a connection part capable of connecting the interface boxes to each other.