Pressure container system for a motor vehicle, motor vehicle and method for interrupting a fluid connection
A pressurized container system for a motor vehicle includes a pressurized container configured to store a fuel, wherein the pressurized container system has a shut-off valve which is configured to interrupt, in a currentless state, a fluid connection between the pressurized container and at least one fuel gas consumer. A safety switch is configured to interrupt a power supply to the shut-off valve, where the safety switch is not an ignition switch of the motor vehicle.
1 . A pressurized container system of a motor vehicle, comprising:
a pressurized container configured to store a fuel, wherein the pressurized container system has a shut-off valve which is configured to interrupt, in a currentless state, a fluid connection between the pressurized container and at least one fuel gas consumer; and
a safety switch configured to interrupt a power supply to the shut-off valve for performing a servicing operation on the motor vehicle, wherein the safety switch is an electrical switch which is connected to electrical terminals of the shut-off valve, wherein the safety switch and an ignition switch of the motor vehicle are configured to independently interrupt the power supply to the shut-off valve, and wherein the safety switch interrupts only the power supply to the shut-off valve for performing the servicing operation;
wherein a lock is integrated into the safety switch, wherein after an interruption of the power supply by the safety switch the safety switch is lockable by locking the lock with a key, and wherein the safety switch permits the power supply again only after the lock is unlocked by the key.
2 . The pressurized container system as claimed in claim 1 , wherein the safety switch is accessible without removing further operating components.
3 . A motor vehicle, comprising:
a pressurized container system, wherein the pressurized container system has a pressurized container configured to store a fuel, wherein the pressurized container system has a shut-off valve which is configured to interrupt, in a currentless state, a fluid connection between the pressurized container and at least one fuel gas consumer; and
at least one fuel cell system which is fluidically connected to the pressurized container system, wherein the shut-off valve is designed to interrupt the fluid connection;
wherein the pressurized container system has a safety switch configured to interrupt a power supply to the shut-off valve, wherein the safety switch is an electrical switch which is connected to electrical terminals of the shut-off valve, wherein the safety switch and an ignition switch of the motor vehicle are configured to independently interrupt the power supply to the shut-off valve, wherein the safety switch interrupts only the power supply to the shut-off valve, wherein the safety switch interrupts the power supply to the shut-off valve before an intervention into an anode subsystem of the at least one fuel cell system, wherein a lock is integrated into the safety switch, wherein after an interruption of the power supply by the safety switch the safety switch is lockable by locking the lock with a key, and wherein the safety switch permits the power supply again only after the lock is unlocked by the key.