An example electrical interruption switch includes a casing, surrounding a contact unit defining a current path therethrough. The contact unit has a first and second connection contact, a separation region and an upsetting region. A current supplied to the contact unit via the first connection contact, can be discharged via the second connection contact, or vice versa. The contact unit includes, or is connected to, a sabot configured to move from a starting to an end position via pressure; in the end position, the separation region is separated causing an insulation spacing between the first and second connection contacts. The upsetting region, upset during movement of the sabot from the starting to end positions, is formed as a tubular or rod-shaped element having an axis; the tubular or rod-shaped element has one or more tapers in its cross-sectional diameter; and the cross-sectional diameter is defined perpendicular to the axis.

An example electrical interruption switch includes a casing, surrounding a contact unit defining current path therethrough. The contact unit has a first and second connection contact and a separation region. A current supplied to the contact unit via the first connection contact can be discharged therefrom via the second connection contact, or vice versa. The separation region includes a tubular element, an axial direction of which runs along an axis X, wherein the tubular element is separable into two parts along a plane perpendicular to the axis X, whereby the current is interrupted between the first and the second connection contact, wherein the tubular element has two opposite end regions along the direction of extent of the axis X, characterized in that the tubular element has a minimum wall thickness, which increases in each case in the direction of the end regions, in a region between the end regions.

An example interruption switch includes a casing surrounding a contact unit, defining a current path through the switch, which has two connection contacts, a separation region and a sabot. A current supplied to the contact unit may be interrupted via the one of the connection contacts and discharged via the other connection contact. At least one chamber in the switch, delimited by the separation region, is substantially filled with a vaporizable medium in contact with the separation region. The separation region is separable into at least two parts through the supplied current when a threshold amperage is exceeded. An electric arc forming between the two parts at least partially vaporizes the vaporizable medium, and a gas pressure to which the sabot is exposed forms. The sabot moves, in the casing, from a starting to an end position, achieving an insulation spacing between the connection contacts.

An example electrical interruption switch includes a casing, surrounding a contact unit defining a current path therethrough. The contact unit has a first and second connection contact, a separation region and an upsetting region. A current supplied to the contact unit via the first connection contact can be discharged via the second connection contact, or vice versa. The contact unit includes, or is connected to, a sabot configured to move from a starting to an end position via pressure; in the end position, the separation region is separated causing an insulation spacing between the first and second connection contacts. The upsetting region, upset during movement of the sabot from the starting to end positions, is formed as a tubular or rod-shaped element having; the tubular or rod-shaped element has one or more tapers in its cross-sectional diameter; and the cross-sectional diameter is defined perpendicular to the axis.

An excitation protection device acting step by step with a single excitation source, including a shell body, an excitation source, impact devices and a conductor, wherein at least two impact devices respectively located in different cavities are provided in the shell body, one side of the impact device is provided with one excitation source, and the impact device and the excitation source are respectively in sealed contact with the cavities where the impact device and the excitation source are located; and the excitation source drives the impact devices to displace simultaneously or successively, and at least one of the impact devices breaks the conductor during the displacement process. The excitation protection device of the present disclosure can be used for the protection of battery packs and load circuits of electric vehicles, or in other power control circuits.

In one embodiment, a fuse assembly comprises a fuse element, an inner chamber comprising arc-quenching liquid, and an outer chamber housing the inner chamber. At least a portion of the fuse element is housed inside the inner chamber. The inner chamber is configured to rupture during an arc event. The outer chamber comprises filler material.

In one embodiment, a fuse assembly comprises a fuse element, an inner chamber comprising arc-quenching liquid, and an outer chamber housing the inner chamber. At least a portion of the fuse element is housed inside the inner chamber. The inner chamber is configured to rupture during an arc event. The outer chamber comprises filler material.

A pressure-compensated fuse assembly may include a first chamber housing a first fluid and a plurality of solid particles. Additionally, the fuse assembly may include a second chamber housing a second fluid. Further, the fuse assembly may include a pressure compensator disposed between the first chamber and the second chamber. The pressure compensator may be configured to transfer pressure from the second fluid in the second chamber to the plurality of solid particles in the first chamber.

A pressure-compensated fuse assembly may include a first chamber housing a first fluid and a plurality of solid particles. Additionally, the fuse assembly may include a second chamber housing a second fluid. Further, the fuse assembly may include a pressure compensator disposed between the first chamber and the second chamber. The pressure compensator may be configured to transfer pressure from the second fluid in the second chamber to the plurality of solid particles in the first chamber.

Provided is an excitation protection device acting step by step with a single excitation source, including a shell body, an excitation source, impact devices and a conductor, wherein at least two impact devices respectively located in different cavities are provided in the shell body, one side of the impact device is provided with one excitation source, and the impact device and the excitation source are respectively in sealed contact with the cavities where the impact device and the excitation source are located; and the excitation source drives the impact devices to displace simultaneously or successively, and at least one of the impact devices breaks the conductor during the displacement process.