Battery Pack Ventilation System for Uniform Temperature Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Battery packs face performance degradation and temperature inconsistencies due to overheating or underheating, especially in extreme conditions, leading to inefficient energy storage and discharge behavior.
Innovation Solution
A power pack system with a ventilation system that includes a recirculation duct, multiple fans, heaters, and baffle plates to facilitate two-directional air flow for uniform temperature management, enabling both heating and cooling of the energy storage system to maintain an optimum temperature range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the battery operates for a substantially long duration, then the battery supplies energy continuously, but the temperature within the battery rises beyond the optimum temperature threshold thereby decreasing the performance and life of the battery
Solution Approach 1:
The patent extracts heat from the battery system using a cooling mechanism that includes a cooling fin structure and a fan. The cooling fin is positioned to conduct heat away from the battery, and the fan forces air flow across the cooling fin to enhance heat dissipation, thereby removing the harmful thermal energy from the system.
Solution Approach 2:
The patent introduces air as an intermediary cooling medium that flows through a passage defined by the housing and cooling fin. The air absorbs heat from the battery through the cooling fin structure and is expelled by the fan, serving as a thermal intermediary between the battery and the external environment.
2Temperature
If the battery is operated in extreme cold condition, then the battery can be heated to initiate charging, but the temperature deviation within the battery pack increases leading to different charge or discharge behavior of each module
Solution Approach 1:
The patent segments the battery pack into multiple modules, each equipped with its own heating element. This allows independent temperature control of each module, ensuring uniform heating across the entire battery pack and preventing temperature deviations that could lead to inconsistent charge or discharge behavior.
Solution Approach 2:
The patent applies heating elements locally to each battery module rather than using a single centralized heating system. This localized heating approach ensures that each module receives appropriate thermal energy to reach the optimal temperature range, maintaining temperature uniformity across the battery pack.
3Quantity of substance
If a battery pack includes a plurality of batteries, then the energy storage capacity increases, but the temperature variation from module to module leads to decreased efficiency of the battery pack
Solution Approach 1:
The patent implements a universal thermal management system that serves all battery modules simultaneously. The housing defines a common air passage that distributes air flow to multiple cooling fins, and the control system manages heating and cooling operations across all modules, providing a multi-functional solution that maintains temperature uniformity while supporting increased energy storage capacity.
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 system effectively heats the battery pack in cold conditions and dissipates heat, maintaining uniform temperature across modules, thereby enhancing battery performance and longevity by minimizing temperature deviations.
Implementation Method 1
The cooling fin is provided in the housing and the fan assembly is configured to force air flow across the cooling fin
Implementation Method 2
The heating element is provided in the air passage and is configured to heat the air flowing through the air passage
Implementation Method 3
The cooling fin is provided in the housing and the fan assembly is configured to force air flow across the cooling fin
Data Source
AI summary
A power pack system includes an energy storage system having a plurality of energy storage devices and a thermal management system. The thermal management system includes a battery ventilation system connected to energy storage system for achieving and maintaining a predetermined temperature within energy storage system by providing a two way circulation of a working fluid. Further, the system includes a housing having a top cover and a bottom cover to receive and secure the energy storage devices therein. The top cover and bottom cover configured to retain said energy storage devices in a sealable manner. Further, a method for achieving and maintaining a pre determined temperature within an energy storage system includes providing two way circulation of a working fluid and maintaining a uniform flow velocity of the fluid at least inside the energy storage system.