Operating principle of Pyro-Fuses
When the signal is detected from the vehicle, an ignition current is generated to operate the Pyro-Fuse, shutting down the circuit and preventing electrical flow.
-
![](img/order_im01.png)
- The ignition current is generated based on the ECU signal.
-
![](img/order_im02.png)
- The initiator ignition operates gas emission.
-
![](img/order_im03.png)
- The pressurized piston detaches the busbar, shutting down the electric circuit.
Pyro-Fuse application
Automobile application
Instant electrical shutdown is realized based on the high reliability cultivated in the Inflator field.
Daicel Safety Strategic Business Unit(SBU)s' have developed Pyro-Fuse that enables safe, instantaneous shutdown of high-voltage electrical currents.
We provide broad application of Pyro-Fuse requirements that could be used for not only electric vehicles, but also gasoline vehicles as well.
![Automobile application](img/img_use01.png)
Intentional shutdown application examples
-
![Circuit malfunctions](../../pyrofuse/img/example_im01.png)
Circuit malfunctions
Protection from overcurrent due to short circuits and malfunctions.
-
![Accidents](../../pyrofuse/img/example_im02.png)
Accidents
Protection from electric shocks and fire by isolating the battery in case of car crashes.
-
![Overcharging](../../pyrofuse/img/example_im03.png)
Overcharging
Protection from fire due to overcharging.
Industrial application
Safe electrical shutdown on a millisecond level could also be utilized in systems used for industrial power storages, heavy-duty batteries, recyclable energy storages, and electricity transmissions.
![Industrial application](../../pyrofuse/img/img_use02.png)
Intentional shutdown application examples
-
![Short circuits](../../pyrofuse/img/example_im04.png)
Short circuits
Shutting down emergency overcurrent.
-
![Overcharging](../../pyrofuse/img/example_im05.png)
Overcharging
Controlling battery charging to prevent overcharge.