Battery Temperature Control via Inductive Heating
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Solution Overview
Problem
Existing battery temperature adjustment methods for hybrid and electric vehicles reduce output power by consuming energy to raise battery temperature, especially at low temperatures, and require an external power source.
Innovation Solution
A battery temperature adjusting system that includes a heating pad, a leading wire connected to a motor or battery unit, and a current induction unit surrounding the leading wire, which generates an induced current to heat the battery without external power, using electromagnetic induction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If battery temperature is raised using power from the battery itself, then battery temperature increases, but output power decreases due to energy consumption
Solution Approach 1:
The system uses the battery's own current to generate heat through electromagnetic induction. The current flowing through the leading wire generates a magnetic field that induces current in the induction coil, which in turn heats the battery through resistive heating. This self-service mechanism allows the battery to raise its own temperature without consuming additional power from external sources or the battery's own capacity.
Solution Approach 2:
The patent replaces traditional resistive heating methods with electromagnetic induction heating. Instead of directly passing current through a heating element connected to the battery, the system uses electromagnetic induction to generate heat in the battery. This substitution reduces energy loss and improves heating efficiency, thereby maintaining output power while raising temperature.
2Temperature
If battery temperature is raised using external power source, then battery temperature increases, but device complexity increases due to external power requirements
Solution Approach 1:
The system eliminates the need for external power sources by using the battery's own operating current to generate heat through electromagnetic induction. The induction coil is positioned around the leading wire, and the current flowing through the wire generates a magnetic field that induces current in the coil, creating heat directly at the battery location without requiring additional external power equipment.
3Temperature
If battery temperature is raised using traditional heating method, then battery temperature increases, but energy loss increases due to additional energy consumption
Solution Approach 1:
The patent replaces traditional resistive heating with electromagnetic induction heating. The induction coil generates a magnetic field that induces current in the battery, which then generates heat through the battery's internal resistance. This method is more efficient because it directly heats the battery without energy loss associated with traditional heating elements, wires, and control systems.
Solution Approach 2:
The system utilizes electromagnetic field phase transitions and energy conversion. The electrical energy in the leading wire transforms into magnetic energy through electromagnetic induction, which then transforms into thermal energy in the battery. This multi-phase energy conversion process is more efficient than direct resistive heating, reducing overall energy loss.
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 raises battery temperature and maintains output power in low-temperature regions without external power, increasing battery output by up to 20% compared to traditional methods.
Implementation Method 1
generating an induced current in a current induction unit surrounding the leading wire through the magnetic force generated in operation (a)
Implementation Method 2
supplying the induced current generated in operation (b) to the heating pad
Data Source
Figure 1
Figure 2
AI summary
The present invention relates to a battery temperature adjusting system including: a battery unit having a heating pad; a leading wire connected to the battery unit; and a current induction unit surrounding the leading wire, wherein the current induction unit is electrically connected to the heating pad. The battery temperature adjusting system according to the present invention generates the induced current by applying the current induction unit surrounding the leading wire connected to the battery unit, and increases the temperature of the battery unit by supplying the induced current to the heating pad, thereby obtaining a desired battery output in a low-temperature region even without the use of an external power source.