Battery Heat Radiation System with Misaligned Heat Pipes
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Solution Overview
Problem
Conventional battery charging systems are inefficient, leading to prolonged charging times, which restricts the use of secondary batteries and electric vehicles, as they require sufficient capacity and increased volume, and delays infrastructure development due to waiting times for charging.
Innovation Solution
A battery heat radiation system comprising multiple battery modules, heat pipes, and a heat exchanger plate with an air blowing portion to efficiently dissipate heat generated during charging, using heat pipes to transfer heat from the battery modules to a heat radiation portion where it is cooled by external air.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If rapid charging is implemented, then charging time is reduced, but battery temperature increases causing degradation
Solution Approach 1:
The patent extracts the heat management function from the battery system by introducing a separate cooling device with cooling fins and air flow paths. This dedicated cooling system removes heat from the battery during rapid charging, allowing high current charging without temperature-induced degradation, thus resolving the contradiction between reduced charging time and maintained battery reliability
Solution Approach 2:
The cooling device acts as an intermediary between the battery and the environment. It includes thermal coupling elements that contact the battery and transfer heat to cooling fins, which then dissipate heat to the air flow. This intermediary system enables rapid charging by mediating the heat transfer process and preventing direct temperature buildup in the battery
2Quantity of substance
If battery capacity is increased, then energy storage is improved, but volume and weight increase
Solution Approach 1:
The patent changes the operational parameters of the battery system by implementing active thermal management during charging. By controlling temperature through the cooling system, the battery can operate at higher charging currents and accept faster charge rates, effectively increasing the power throughput and charging speed without increasing physical capacity, thus improving energy delivery capability without increasing volume
3Reliability
If conventional charging is used, then battery temperature is controlled, but charging time is prolonged
Solution Approach 1:
The patent implements a dynamic cooling system that activates during rapid charging operations. The cooling device is designed to provide enhanced thermal management specifically when high current charging is applied, allowing the system to dynamically adjust between conventional slow charging without cooling and rapid charging with active cooling, thus reducing charging time while maintaining temperature control through conditional dynamic operation
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 reduces battery temperature during rapid charging, prevents degradation, and enhances reliability by efficiently releasing heat, allowing for reduced battery capacity and faster charging, thus improving convenience and infrastructure efficiency.
Implementation Method 1
at least one heat pipe thermally connected at a first end of the heat pipe to one surface of the battery module and protruding from the battery module at a second end of the heat pipe
Implementation Method 2
at least one metal heat exchanger plate thermally connected to one surface of the battery module
Implementation Method 3
an air blowing portion configured to blow air to the heat radiation portion
Implementation Method 4
an air blowing portion configured to blow air to the heat radiation portion
Data Source
AI summary
Each of the plurality of battery heat radiation units includes, a battery module, at least one heat pipe thermally connected at a first end of the heat pipe to one surface of the battery module and protruding from the battery module at a second end of the heat pipe, at least one metal heat exchanger plate thermally connected to one surface of the battery module, and at least one heat radiation portion provided at the second end of the heat pipe, the air blowing portion blows air to the heat radiation portion, and one heat radiation portion in the plurality of battery heat radiation units is misaligned with other heat radiation portions in the plurality of battery heat radiation units as viewed from the air blowing portion side.