Provided is a current breaker for an aerial vehicle that can prevent occurrence of a minor collision of propellers or other components in operation with a person and can prevent occurrence of a deployment failure of a lift generating member at a crash of the aerial vehicle. A current breaker 100 for an aerial vehicle includes a rupture plate 23 that disconnects a current supply path 30 that electrically connects an electric device and an electric circuit, an igniter 10 that damages the rupture plate 23 by directly or indirectly applying a destructive force (heat and pressure) toward the current supply path 30 with respect to the rupture plate 23, and disconnects the current supply path 30 by the rupture plate 23 that has been damaged, and a controller 24 that drives the igniter 10 upon detection of an abnormality.

Provided is a current breaker for an aerial vehicle that can prevent occurrence of a minor collision of propellers or other components in operation with a person and can prevent occurrence of a deployment failure of a lift generating member at a crash of the aerial vehicle. A current breaker 100 for an aerial vehicle includes a rupture plate 23 that disconnects a current supply path 30 that electrically connects an electric device and an electric circuit, an igniter 10 that damages the rupture plate 23 by directly or indirectly applying a destructive force (heat and pressure) toward the current supply path 30 with respect to the rupture plate 23, and disconnects the current supply path 30 by the rupture plate 23 that has been damaged, and a controller 24 that drives the igniter 10 upon detection of an abnormality.

A switch includes: an ignition chamber; a pyrotechnic actuator for releasing gas into the ignition chamber upon ignition; a first conductor and a second conductor, the first and second conductors including connection contacts; a third conductor moveable in a direction from a first position towards a second position upon actuation by the pyrotechnic actuator; and a breakable retaining member for retaining the third conductor in the first position prior to actuation by the pyrotechnic actuator, the retaining member breaking upon actuation of the pyrotechnic actuator to allow movement of the third conductor. In the first position, the third conductor is arranged between, and in electrical and physical contact with, the first and second conductors to define a current conduction path. In the second position, the third conductor is electrically and physically separate from the first and second conductors.

A bypass switch includes: a casing; a vacuum interrupter disposed inside the casing, the vacuum interrupter being disposed such that a movable contact is movable to a fixed contact; a first fixing bus-bar fixed to the casing; a second fixing bus-bar fixed to the casing to be spaced apart from the first fixing bus-bar; a moving pusher connected to the movable contact; a drive source installed in the casing, the drive source pushing the moving pusher to a position at which the movable contact and the fixed contact are contacted with each other; and a multi-contactor disposed to be contacted with the moving pusher. Accordingly, the moving pusher can rapidly contact the movable contact with the fixed contact. Further, the moving pusher can be moved with a small external force. Thus, it is possible to minimize the size of the drive source and the power used in the drive source.

An electrical switch, in particular for high voltages and/or high currents, includes a contact unit which includes at least two contact, a switching element and a drive for the switching element. The drive is designed such that it can move the switching element from an initial position into an end position. The switching element is accelerated during an acceleration phase directly or indirectly by the drive and it passes subsequently through a free movement phase until it has reached the end position.

An electrical switch, in particular for high voltages and/or high currents, includes a contact unit which includes at least two contact, a switching element and a drive for the switching element. The drive is designed such that it can move the switching element from an initial position into an end position. The switching element is accelerated during an acceleration phase directly or indirectly by the drive and it passes subsequently through a free movement phase until it has reached the end position.

A pyrotechnic disconnect comprises: a housing with at least a combustion chamber therein; a pyrotechnic charge in the combustion chamber; a busbar covering an opening of the combustion chamber, the busbar configured to be severed by activation of the pyrotechnic charge; and arc splitter plates arranged in the housing on an opposite side of the busbar from the combustion chamber.

A pyrotechnic disconnect comprises: a housing with at least a combustion chamber therein; a pyrotechnic charge in the combustion chamber; a busbar covering an opening of the combustion chamber, the busbar configured to be severed by activation of the pyrotechnic charge; and arc splitter plates arranged in the housing on an opposite side of the busbar from the combustion chamber.

The present invention provides an electric circuit breaker device, wherein, in a cylindrical space penetrating from a first end to a second end of a housing made of a synthetic resin, an igniter, a projectile made of a synthetic resin, and a conductor piece forming part of an electric circuit are arranged axially in this order from the first end of the housing, and the device has an insulating space for receiving a cut portion of the conductor piece between the second end of the housing and the conductor piece, wherein the conductor piece is a plate piece composed of connection sections at both ends thereof and a cutting section as an intermediate portion, and is disposed so that the cutting section has a surface perpendicular to the axial direction of the housing; the projectile is disposed to face the surface of the cutting section of the conductor piece in the axial direction of the housing; and a cylinder made of a metal for reinforcing the housing is disposed between the projectile and an inner wall surface of the housing.

An energy storage system for a vehicle, includes one or more battery units for storing electrical energy; at least one high voltage switch for connection and disconnection of the one or more battery units to at least one load, such as an electrical machine; a fuse for disconnection of the one or more battery units when the energy storage system experiences an overcurrent being above a predetermined overcurrent value. The energy storage system is configured to during use, identify if a condition has occurred which requires immediate shutdown of the energy storage system.