Battery Temperature Adjusting System Preventing Dew Condensation
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Solution Overview
Problem
Battery warming in vehicles leads to dew condensation, causing insulation failure and reducing charging efficiency, especially at low temperatures where quick charging is hindered.
Innovation Solution
A battery temperature adjusting system that includes a temperature detector, warm wind blower, controller, dew condensation determiner, and dehumidifier to prevent dew condensation by dehumidifying the air around the battery when necessary, using the vehicle's air conditioning system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If warm wind is blown to the battery to warm it, then the battery temperature increases and charging efficiency improves, but dew condensation occurs on the battery surface causing insulation failure
Solution Approach 1:
The system performs dehumidification of the air surrounding the battery before or during the warming process. The controller activates the dehumidifying unit to remove moisture from the air in the battery compartment, preventing dew condensation from forming when warm, humid air contacts the cold battery surface.
Solution Approach 2:
The air conditioning system serves as an intermediary between the external environment and the battery. By controlling the humidity and temperature of the air in the battery compartment through the air conditioner's dehumidifying and heating functions, the system mediates the thermal exchange to warm the battery while preventing harmful condensation.
2Productivity
If the battery is warmed quickly to enable quick charging, then charging efficiency improves, but the risk of dew condensation and insulation failure increases
Solution Approach 1:
The controller预先 activates the dehumidifying unit before initiating rapid battery warming during quick charging operations. This preliminary dehumidification creates a low-humidity environment that prevents dew condensation even when the battery temperature is rapidly increased, maintaining insulation reliability while enabling fast charging.
Solution Approach 2:
The system uses temperature and humidity sensors to continuously monitor the battery compartment conditions. The controller receives feedback from these sensors and dynamically adjusts the operation of the dehumidifying unit and warm wind blower to maintain optimal conditions for both rapid warming and condensation prevention during quick charging.
3Temperature
If the air conditioner is used to warm the battery, then the battery can be heated effectively, but power consumption increases during charging
Solution Approach 1:
The vehicle's air conditioning system is designed to serve multiple functions: it provides passenger compartment climate control, and it also serves as the heating and dehumidification system for the battery compartment. By utilizing the same compressor, condenser, and control mechanisms for both purposes, the system avoids the need for separate battery heating equipment, thereby reducing overall power consumption and system complexity.
Solution Approach 2:
The system merges the battery temperature management function with the vehicle's existing air conditioning system. The air conditioner's heating and dehumidification capabilities are directly applied to the battery compartment through controlled air flow, combining two functions (passenger climate control and battery thermal management) into a single integrated system to minimize energy consumption.
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 efficient battery warming without dew condensation, allowing for quick and effective charging even at low temperatures without compromising power supply to the battery.
Implementation Method 1
dew condensation would occur at the battery surface depending on the relationship (condition) between the temperature and humidity
Implementation Method 2
flowing hot wind to the battery side so that the battery can be warmed
Data Source
AI summary
There is provided a battery temperature adjusting system for realizing warming of a battery without dew condensation, and for charging the battery in an efficient manner. The battery temperature adjusting system includes: a battery temperature sensor for detecting a temperature of a battery pack; a duct for blowing warm wind toward the battery pack; a controller for warming the battery pack by causing the warm wind to be flown into around the battery in accordance with the temperature detected by the battery temperature sensor; a dew condensation determining unit for determining whether or not dew condensation occurs on the battery pack; and an evaporator for dehumidifying the warm wind. The controller causes the dehumidified warm wind to be flown into around the battery pack, when determining that the dew condensation will occur on the battery pack.