Abstract:
An electric switch (1) comprising a mechanism module (2) and a contact module (3), the contact module comprising a base element (46), a cover element (47), fixed contacts (41) and a rotary roll (39) for receiving moving contacts (40), the mechanism module comprising a base element (5), a cover element (6), a front pipeshaft (9) for controlling the switch from front, an inner pipeshaft (12) for controlling the switch from side end, the pipeshafts (9, 12) being engaged to each other by teeth (19, 22) to form a gear for transferring a moment from the front pipeshaft to the inner pipeshaft, a lever (13) for transferring a moment to the roll, the lever arranged to receive the inner pipeshaft, the inner pipeshaft and the lever being rotatable engaged with each other, and main springs (14) for giving a rotational moment for the lever and being connected of first ends (49) to the base element and the main springs being connected to the lever of their second ends (50).
Abstract:
A bistable mechanism is comprised of a spring (12) that is fastened to a lever (7) and a rocker arm (6) thus ensuring maximum torque. Bridges (4, 8) are fastened to the rocker arm (6) symmetrically to the axis of rotation of the rocker arm (6), and a contact spring (10) is compressed upon switch-off and switch-on, which makes it possible that the switch is switched over by way of various combinations of contacts with a minimum energy input that is provided by an electromagnet or a hand in the case of manual switching.
Abstract:
Energyharvesting device The present invention relates to a very simple and robust wireless batteryless device (100) for harvesting energy. The actuation upon button pressure/release results in a rotation of a first member (1) around its central axis (11) leading to a move of an element (3), which is loosely fixed at the first member (1) from a pivot point (14), and a rotation around the central axis (11) of the second member (2) to which a generator axis of an energy harvester is coupled, the rotation axis of the generator being coincident with the central axis (11). Upon full pressure/release, the element (3) is forced to rotate around the pivot point (14), allowing a vertically raised pin (22) of the second member (2) to disengage a recessed area (31, 32) at each end of a slot (30) of the element (3) and the second member (2) to rotate to its rest position.
Abstract:
There is provided a grounding switch-equipped gas insulation switch device in which a switch mechanism for opening/closing a main circuit and that for opening/closing grounding are made into a single compact body and a movable electrode for opening/closing grounding is rapidly operated by the switch mechanism. The grounding switch-equipped gas insulation switch device includes a sealing vessel for containing insulation gas, a main circuit switching fixed electrode (3) fixed tot he sealing vessel, a movable electrode (1) in contact with the main circuit switching fixed electrode (3), a grounding switching fixed electrode (4) capable of electrical connection, and a drive device for driving the movable electrode (1), thereby driving the movable electrode (1). The main circuit switching fixed electrode (3) and the grounding switching fixed electrode (4) are arranged in a rectilinear shape in the longitudinal direction of the movable electrode (1). The drive device drives and holds the movable electrode (1) in three positions: a closed position, an open position, and a grounding position in a rectilinear shape.
Abstract:
Die Erfindung betrifft eine Antriebseinrichtung für eine Schaltröhre mit einem festen und einem beweglichen Kontaktteil, wobei der bewegliche Kontaktteil mittels einer aus Kunststoff gebildeten Schaltstange (SS) derart gesteuert ist, dass die Schaltstange (SS) im Ein- und Ausschaltzustand der Kontaktteile weitestgehend unbelastet ist und die Kraft der Kontaktfeder (KF) im Einschaltzustand der Kontaktteile annähernd vollständig auf den beweglichen Kontaktteil der Schaltröhre einwirkt. Der Betätigungshebel und der Pendelhebel sind durch Antriebshebel (AH, AH') mit Dreieckskontur ersetzt, die in jedem Eckbereich mit einem Schwenkdrehlager (SL...) ausgestattet sind, wobei die Antriebshebel (AH...) ein mittiges Schwenkdrehlager (SLm) zur Aufnahme der drehgelagerten Kontaktfeder (KF) aufweisen und das mittige Schwenkdrehlager (SLm) zwischen einem mit der Schaltstange (SS) in Verbindung stehenden, oberen Schwenkdrehlager (SLo ) und einem mit dem Antrieb (AT) des beweglichen Kontaktteils in Verbindung stehenden, unteren Schwenkdrehlager (SLu) angeordnet und die Kontaktfeder (KF) einseitig in einer feststehenden Kalottenführung (KG) gelagert ist. Die Kontaktandruckkraft für den Antrieb (AT) des beweglichen Kontaktteils ist durch eine Veränderung der wirksamen Weglänge der Kontaktfeder (KF) regulierbar. Die wirksame Weglänge der Kontaktfeder ist durch eine von aussen her zugängliche Regulierschraube (RS) stufenlos einstellbar.
Abstract:
The present invention consists in a switch actuator to move an air brake switch (124) such as those commonly found in power transmission lines, between an open and closed position wherein the actuator (4) includes a first rotatable member in mechanical connection with and to move said switch (124) between said open and closed position by the rotation of said rotatable member, a second rotatable member in mechanical connection with an actuator such as a linear drive motor (8), a connection member rotatable about the same pivot axis as the first and second members, the connection member being biased for rotation about the pivot axis in a toggle manner and providing a mechanical connection means to locate (a) against a fixed point of, and be displaced by, said second rotatable means at least during the rotation of the connection member by the second rotation means towards the point of toggle of the connection means, and (b) against a fixed point of and to thereby displace, the first rotatable member at least during rotation of said connection member passed said point of toggle.
Abstract:
The inventive dead-center switch comprises a rocker (1) which is mounted in a knife-edge bearing (3) and which can pivot between two contact positions by means of tension spring (2). The knife-edge bearing (3) is configured in a manner which permits it to be displaced, whereby the position of the dead-center that is located between the contact positions can be changed.