Modular Battery Pack Scalability and Temperature Detection
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Solution Overview
Problem
Existing battery packs for high-power devices like electric vehicles and hybrid vehicles face challenges in providing scalable output and capacity, as well as efficient temperature monitoring, particularly in large and complex configurations.
Innovation Solution
A modular battery pack design that allows for flexible scalability by connecting multiple battery packs with the same structure, featuring a bus bar system for efficient electrical connections and integrated temperature detection through strategically placed thermistors, enabling adaptive output and capacity adjustments and comprehensive temperature monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple battery packs are connected to provide various outputs and capacities, then scalability and adaptability are improved, but device complexity and configuration difficulty increase
Solution Approach 1:
The battery system is divided into standardized modular battery packs that can be independently configured and connected. Each module contains a fixed number of battery cells arranged in specific series-parallel configurations, allowing the overall system to achieve various outputs by simply adding or removing complete modules rather than individually configuring each cell.
Solution Approach 2:
The battery modules are designed with universal connection interfaces and standardized structures that allow the same module design to serve multiple different capacity and power requirements. The same basic module can be used in various configurations (1 module, 2 modules, 3 modules, etc.) to provide different total capacities and outputs, eliminating the need for custom designs for each application.
2Measurement precision
If temperature detection positions are separately set in extended modules, then measurement precision is improved, but device complexity and assembly difficulty increase
Solution Approach 1:
Multiple temperature detection functions are merged into a single integrated temperature detection module. This module contains multiple thermistors positioned at different locations (including central and corner positions) that can simultaneously monitor temperatures across the entire battery pack, whether it consists of one module or multiple extended modules, eliminating the need for separate detection mechanisms for each module.
Solution Approach 2:
The temperature detection module is designed to automatically adapt to the battery pack configuration. When modules are extended or reconfigured, the detection module self-adjusts its monitoring coverage through its multi-position sensor array, requiring no manual reconfiguration or additional assembly steps for temperature monitoring setup.
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
The modular design enhances scalability and efficiency by allowing output and capacity adjustments while ensuring reliable temperature monitoring across the battery pack, improving energy density and operational stability.
Implementation Method 1
a thermistor accommodated in the hollow protrusion through the exposure hole
Implementation Method 2
a thermistor accommodated in the hollow protrusion through the exposure hole
Data Source
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AI summary
A battery pack (1) includes a plurality of battery cells (10); a cell holder (W) surrounding an accommodation space in which the plurality of battery cells (10) are accommodated, the cell holder (W) including a hollow protrusion (H) located at a temperature detection position (A) for temperature measurement of the plurality of battery cells (10); a cover (C) on the cell holder (W) and including an exposure hole (C') to expose the hollow protrusion (H); and a thermistor (TH) accommodated in the hollow protrusion (H) through the exposure hole (C'). The battery pack (1) may provide a module with various outputs and capacities, by using battery packs having the same structure as one unit and connecting a plurality of battery packs (1) to each other, and may provide scalability to adaptively correspond to various outputs and capacities using the battery packs (1) having the same structure, by increasing or reducing the number of battery packs to be included in the module.