Wireless Filling Nozzle for Hydrogen Stations
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Solution Overview
Problem
Conventional hydrogen filling apparatuses face issues with cable disconnection and electric noise interference, leading to signal transmission failures and repair difficulties due to the use of cables for both signal transmission and power supply.
Innovation Solution
A filling apparatus utilizing a radio transmission section with short-distance radio communication on the filling nozzle, eliminating the need for cables and incorporating an explosion-proof structure, battery operation, and an information processor to filter out noise signals, ensuring reliable and safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cable is used to transmit signals and supply power from the filling nozzle to the receiver, then signal transmission and power supply are achieved, but the cable is prone to disconnection and damage due to pulling and twisting during filling operations
Solution Approach 1:
The patent replaces the mechanical cable connection system with a wireless communication system. The filling nozzle transmits signals wirelessly to the receiver, eliminating the physical cable that was prone to disconnection and damage during filling operations. This substitution resolves the reliability issue by removing the vulnerable mechanical connection while maintaining signal transmission capability.
2Reliability
If a long cable is used to connect the filling nozzle to the receiver, then signal transmission is achieved, but the cable is easily affected by electric noise from the hydrogen filling apparatus
Solution Approach 1:
The patent replaces the electrical cable transmission system with a wireless communication system. By transmitting signals through electromagnetic waves in the air rather than through a physical cable, the system eliminates the cable's susceptibility to electric noise from the hydrogen filling apparatus. The wireless transmission path is not affected by the electromagnetic interference that plagued the cable-based system.
3Device complexity
If a cable is used for both signal transmission and power supply, then both functions are achieved through a single component, but the cable becomes a single point of failure that can cause both signal and power loss when disconnected
Solution Approach 1:
The patent replaces the combined cable system with separate wireless communication and power transmission mechanisms. The filling nozzle communicates wirelessly with the receiver, and power is supplied through the battery integrated into the filling nozzle. This separation eliminates the single point of failure inherent in the combined cable system, as disconnection of one function does not necessarily affect the other.
Solution Approach 2:
The filling nozzle is designed with multi-functionality, integrating the battery, wireless communication transceiver, and filling mechanism into a single device. This allows the nozzle to operate independently with its own power source and communication capability, eliminating the need for a cable to perform multiple functions and reducing system vulnerability.
Data Source
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AI summary
To provide a filling apparatus capable of eliminating a disadvantage caused by a cable connecting a photodetector to a receiver. A filling apparatus 100 according to the present invention includes a radio transmission section 10 with a function of transmitting vehicle information via radio transmission on a filling nozzle 50. In the filling apparatus 100, it is preferable that the radio transmission section 10 is detachably attached to the end portion 50A of the filling nozzle 50.