Temperature-Controlled Battery Charging Enclosure for Subzero Packs
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Solution Overview
Problem
Existing battery charging systems lack the ability to effectively control and maintain a predetermined temperature for battery packs, particularly when they are below zero, which can hinder efficient charging and battery performance.
Innovation Solution
A temperature-controlled enclosure equipped with a temperature control device and an electronic controller that modifies the ambient temperature within the enclosure based on signals from the battery pack, ensuring it reaches a predetermined temperature before charging, utilizing a thermoelectric cooling device and insulation to maintain a stable environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a battery pack is charged directly without temperature control, then charging speed can be maintained, but battery performance and safety deteriorate when temperature is below zero
Solution Approach 1:
The system performs preliminary temperature assessment before charging by detecting the battery pack temperature via the temperature detection unit. If the temperature is below the preset threshold, the heating unit activates to warm the battery pack to an appropriate temperature range before charging begins, ensuring safe and efficient charging conditions are met in advance
Solution Approach 2:
The system continuously monitors battery pack temperature through the temperature detection unit during charging and adjusts heating or cooling operations accordingly. The control unit receives real-time temperature feedback and modulates the heating/cooling units to maintain optimal temperature, preventing both overheating and insufficient warming
2Reliability
If temperature control is implemented for battery packs below zero, then battery safety and performance improve, but system complexity increases
Solution Approach 1:
The temperature control functionality is integrated directly into the charging cabinet structure. The heating unit, cooling unit, and temperature detection unit are combined within the same enclosure, allowing temperature management to be performed without requiring separate external equipment, thus reducing overall system complexity while maintaining safety
Solution Approach 2:
The system automatically detects battery temperature and activates heating or cooling operations without user intervention. The control unit autonomously manages the temperature control process based on sensor feedback, eliminating the need for manual temperature monitoring and adjustment by the user
3Productivity
If heating is applied to warm up battery packs, then charging efficiency improves, but energy consumption increases
Solution Approach 1:
The heating unit operates only partially - specifically, only when the battery pack temperature falls below the preset threshold. The control unit activates heating selectively based on temperature conditions rather than continuously, warming the battery pack just enough to reach the optimal charging temperature range without excessive energy consumption
Solution Approach 2:
The system dynamically adjusts the heating power and duration based on the actual temperature difference between the battery pack and the target temperature. As the battery pack approaches the optimal temperature range, the heating intensity is reduced or stopped, optimizing energy usage according to real-time temperature parameters
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 solution ensures that battery packs are warmed to a safe temperature for charging, optimizing charging efficiency and extending battery life by maintaining a stable and predetermined temperature within the enclosure.
Implementation Method 1
utilizing a thermoelectric cooling device and insulation to maintain a stable environment
Implementation Method 2
utilizing a thermoelectric cooling device and insulation to maintain a stable environment
Data Source
AI summary
A temperature controlled enclosure that includes a temperature control device for controlling the temperature within an internal cavity of the temperature controlled enclosure. The temperature controlled enclosure also includes one or more charging ports for receiving and charging a battery pack. A controller within the temperature controlled enclosure controls the temperature within the internal cavity to a predetermined or desired temperature (e.g., 20° C.). When a battery pack is received in the one or more charging ports, the temperature of the battery pack can be determined. If, for example, the temperature of the battery pack is below 0° C., the battery pack is allowed to warm up inside the temperature controlled enclosure before the battery pack is charged.