Abstract:
An ultrafast electrical (e.g., transfer, disconnect, etc.) switch that is simple, compact, does not require high energy to operate, ultralow loss, clean, and capable of being automatically reset. The invention includes a fast electromechanical switch having a drive mechanism integrated into the switching chamber. The integration of the drive mechanism into the switching chamber provides faster contact travel and therefore a faster switching operation. Additionally, the switching chamber is a self-contained environment that may consist of a high-pressure gas or a vacuum. The invention further includes an ultrafast disconnect switch. The invention generally is an integrated piezoelectric-actuator-based mechanical switching mechanism. The mechanism has a central piezoelectric actuator that extends to pull contacts inwards in order to obtain two disconnects within a millisecond or less. Surrounding the piezoelectric actuator is a polymer insulating shell and beyond the shell is the metallic conductor.
Abstract:
Erfindungsgemäß wird eine Schaltvorrichtung (1) mit einem beweglichen Kontakt (2) zum Schließen und Öffnen eines Stromkreises vorgeschlagen, die eine magnetische Formgedächtnislegierung (4) zum Antrieb des beweglichen Kontakts (2) aufweist. Die Schaltvorrichtung (1) umfasst mindestens einen Aktor (12), der den Haltebetrieb der Schaltvorrichtung (1) bewirkt.
Abstract:
An electrical relay comprising having two wettable electrical contacts (118, 120) supporting a conducting liquid (126). A non-wettable switch finger (114) is moved between first and second positions between the electrical contacts by action of an actuator (130, 132 or 140). In the first position the switch finger permits the conducting liquid (126) to bridge the gap between the contacts (118, 120) and complete an electrical circuit between the contacts. In the second position the switch finger separates the conducting liquid into two volumes, breaking the electrical circuit between the contacts. The switch finger may be located at the free end of a beam (112) that is deflected or bent by the action of piezoelectric elements (130, 132 or 140).
Abstract:
A RF MEMS package includes a MEMS die assembly having a signal line (46) formed on a top surface of a first mounting substrate (42), the signal line comprising a MEMS device (48) selectively electrically coupling a first portion of the signal line to a second portion of the signal line, and two pairs of ground pads (52, 54, 56, 58) formed on the top surface of the first mounting substrate adjacent respective portions of the signal line. The pairs of ground pads are positioned adjacent respective sides of the MEMS device. A ground assembly (43) is electrically coupled to the pairs of ground pads and includes a second mounting substrate and a ground region (62) formed on a surface of the second mounting substrate. The ground region faces the top surface of the first mounting substrate and is electrically coupled to the pairs of ground pads. A cavity is formed between the ground region and the signal line.
Abstract:
Es wird ein elektrisches Schaltgerät mit wenigstens einer Kontaktstelle mit wenigstens einem Antrieb vorgeschlagen, der die Kontaktstelle direkt und/oder über ein Schaltschloss mit einer Verklinkungsstelle öffnet und der Antrieb ein Element mit einer vorbestimmten Form aufweist, das aus einer Formgedächtnislegierung besteht, die ihre Form unter dem Einfluss eine elektromagnetischen Feldes ändert und dabei eine Kontaktstelle oder Doppelkontaktstelle öffnet oder schließt oder ein Schaltschloß entklinkt.