Induction-Heated Hydrogen Nozzle to Prevent Freezing Lock
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Solution Overview
Problem
The connection part between the nozzle and the receptacle in hydrogen charging systems for Fuel Cell Electric Vehicles (FCEVs) freezes during rapid hydrogen charging due to low temperatures, making it difficult to separate the nozzle from the receptacle after charging, which affects durability and safety.
Innovation Solution
A nozzle heating device with an induction heating unit that directly heats the nozzle periphery using induction heating, equipped with temperature sensors and control units to manage power supply, ensuring effective prevention of freezing and overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If rapid hydrogen charging is performed at low temperatures, then charging speed is improved, but the connection part between nozzle and receptacle freezes making separation difficult
Solution Approach 1:
The heating cover is attached to the nozzle before hydrogen charging begins, and heating is activated in advance to prevent freezing of the connection part between nozzle and receptacle during the charging process
Solution Approach 2:
The system changes the temperature parameter of the nozzle by applying induction heating, transforming the nozzle from a cold state that causes freezing to a controlled warm state that prevents freezing while enabling timely separation after charging
2Ease of operation
If heating is applied to prevent freezing, then separation ease is improved, but overheating may occur reducing safety
Solution Approach 1:
A temperature sensor is attached to the nozzle to detect its temperature in real-time, and this feedback signal is sent to a control unit that automatically adjusts or stops the induction heating when the predetermined temperature is reached, preventing overheating
Solution Approach 2:
The patent replaces conventional thermal conduction heating with induction heating, which allows for more precise and rapid temperature control through electromagnetic fields, enabling better integration with temperature feedback systems for safety
3Power
If induction heating is used to heat the nozzle, then heating efficiency is improved, but device complexity increases
Solution Approach 1:
The patent extracts only the essential components needed for induction heating (heating cover, induction heating unit, temperature sensor, and control unit) and attaches them to the nozzle, avoiding complex integrated systems while achieving high heating efficiency
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 effectively inhibits freezing and ensures safe, timely separation of the nozzle from the receptacle, improving durability and reliability by directly heating the nozzle and preventing overheating.
Implementation Method 1
an induction heating unit disposed in the heating cover and configured to heat the nozzle by induction heating
Data Source
AI summary
The present disclosure relates to a nozzle heating device including a heating cover configured to cover a periphery of a nozzle configured to supply a charging fluid, and an induction heating unit disposed in the heating cover and configured to heat the nozzle by induction heating, thereby effectively inhibiting freezing of the nozzle.